JP6490972B2 - Low temperature pyrolysis furnace, low temperature pyrolysis treatment system, and low temperature pyrolysis treatment method - Google Patents

Description

  The present invention relates to a low-temperature pyrolysis furnace, a low-temperature pyrolysis treatment system, and a low-temperature pyrolysis treatment method intended to dispose of various kinds of waste at a low temperature (for example, a temperature of less than 280 ° C.).

  Conventionally, a low-temperature carbonization apparatus that does not generate dioxins has been proposed for waste decomposition (for example, Patent Document 1). In the technique disclosed in Patent Document 1, a thermal decomposition chamber that heats waste and an air chamber that is located below the thermal decomposition chamber and supplies magnetized air to the thermal decomposition chamber inside the outer tank. It is equipped with.

  Then, the pyrolysis chamber and the air chamber are separated by an obliquely inclined swash plate, and the pyrolysis chamber and the air chamber are communicated with each other by a supply pipe extending in a horizontal direction from the swash plate. Magnetized air controlled by magnetic flux is supplied to the pyrolysis chamber. According to such a technique related to patent literature, waste can be subjected to low-temperature decomposition heat treatment by restricting ventilation of excited air to form ash, so that generation of dioxins can be suppressed.

Utility model registration 312682

  However, since the ash produced by the pyrolysis chamber is light in weight, the pyrolysis chamber and the air chamber are separated by an obliquely inclined swash plate as in the technique according to Patent Document 1 described above. In the configuration, there is a problem that when the decomposed ash falls on the swash plate, it easily accumulates on the swash plate.

  In the technique disclosed in Patent Document 1, since the air supply pipe is inserted in the horizontal direction from the swash plate, when ash accumulates on the swash plate, the accumulated ash blocks the opening of the air supply pipe. As a result, magnetic air is not supplied to the entire pyrolysis chamber, and impurities that do not completely decompose the waste may be generated.

  Accordingly, the present invention has been made in view of the above points, and in the decomposition processing of waste, by ensuring the air permeability of the air supply holes, magnetized air is continuously supplied to the entire thermal decomposition processing chamber, It is an object of the present invention to provide a low-temperature pyrolysis furnace, a low-temperature pyrolysis treatment system, and a low-temperature pyrolysis treatment method that can reliably and efficiently treat waste while preventing generation.

  In order to solve the above problems, the low-temperature pyrolysis furnace of the present invention includes an inner hollow outer tank having an inlet at the upper part, a pyrolysis chamber formed in the outer tank, and a lower part of the outer tank. An air chamber separated from the pyrolysis chamber by the partition; a feeding means for supplying magnetized air to the air chamber; a protrusion that penetrates the partition and protrudes toward the pyrolysis chamber; An air supply hole that penetrates the inside and communicates the air chamber and the thermal decomposition treatment chamber is provided.

  According to such an invention, the protruding portion that protrudes toward the pyrolysis chamber is provided, and the air supply hole that connects the air chamber and the pyrolysis chamber is formed in the protruding portion. The vertical distance from the upper surface of the partition wall, which is the bottom of the decomposition chamber, to the intake hole to which the magnetized air is supplied can be secured, and the ash (exhaust) generated by the pyrolysis chamber is projected It is possible to prevent the intake hole of the air supply hole from being blocked by ash. As a result, air permeability of the air supply holes can be secured and magnetized air can be continuously supplied to the entire thermal decomposition treatment chamber, so that waste can be reliably and efficiently decomposed while preventing the generation of non-combustible materials. .

In the above invention, the lower part of the thermal decomposition treatment chamber further includes a discharge path that communicates with the outside of the outer tub, and a conveying means that extends along the discharge path and conveys the discharge in the discharge path in the extending direction. The protrusion part is provided along the discharge path .

For this reason, since a discharge path is formed in the lower part of the pyrolysis chamber, the ash (exhaust) decomposed in the pyrolysis chamber is accumulated in the lower discharge path, and is then extended by the conveying means. It will be conveyed in the installation direction. As a result, in the present invention, the waste accumulated in the lower part of the pyrolysis chamber can be efficiently recovered, so that the waste is accumulated in the pyrolysis chamber and becomes a part of the pyrolysis chamber. It is possible to prevent generation of a space in which no magnetized air is supplied, and it is possible to reliably and efficiently treat waste.

  Furthermore, since the protruding portion extends along the discharge path, the discharged material that has fallen away from the protruding portion is accumulated in the extended discharge path. As a result, the discharge can be efficiently removed, so that the magnetized air can be continuously supplied to the entire pyrolysis chamber, and the waste can be reliably and efficiently processed.

  In the said invention, it is preferable that the slope which inclines toward a discharge path is formed in the upper part of a protrusion part. In this case, the ash that has fallen on the upper part of the projecting part falls into the discharge path by this slope, so that it is possible to prevent the opening of the air supply hole from being blocked. As a result, it is possible to ensure the air permeability of the air supply holes, continue to supply the magnetized air to the entire pyrolysis chamber, and prevent the generation of incombustibles.

  In the above invention, the discharge path is preferably formed between a plurality of protruding portions arranged at a predetermined interval. In this case, since the discharged material that has fallen away from each protrusion can be collected and conveyed in the discharge path formed between the protrusions, the discharged material can be efficiently removed.

  In the above invention, the amount of the magnetized air provided to the air chamber based on the monitoring result of the monitoring means provided on the feeding means and the monitoring means for monitoring the temperature and internal pressure in the pyrolysis chamber Based on the monitoring result of the monitoring means based on the monitoring result by the monitoring means, the air supply adjusting means for adjusting the air, the exhaust means communicating from the thermal decomposition treatment chamber to the outside of the outer tub and exhausting the air in the thermal decomposition treatment chamber It is preferable to further provide an exhaust gas adjusting means for adjusting the exhaust amount by

  In this case, for example, when processing waste containing fats and oils such as coconut shells, gas is generated from the decomposed fats and oils, and the temperature and pressure in the pyrolysis chamber rise too much, resulting in an ignition phenomenon. Can be prevented. Accordingly, it is possible to prevent the waste from burning due to the ignition phenomenon and hinder the low-temperature thermal decomposition, and it is possible to prevent the safety of the operator from being lowered by the flame caused by the combustion. Specifically, for example, the temperature and internal pressure in the pyrolysis chamber are monitored by a monitoring unit, and when the temperature and internal pressure in the chamber increase, the thermal decomposition is performed by an air supply adjustment unit or an exhaust adjustment unit. The supply / exhaust amount of air in the processing chamber is adjusted to slow down the decomposition process, and the ratio of air (oxygen) to gas in the processing chamber is reduced to reduce the risk of ignition and explosion.

  In order to prevent the above ignition phenomenon more reliably, a rotary valve is provided at the inlet for introducing waste into the pyrolysis chamber to improve the hermeticity of the pyrolysis chamber, and finer temperature adjustment and internal pressure can be achieved. It is preferable to realize the adjustment. In this rotary valve, a hollow cylindrical part is formed in the middle of the charging path communicating with the outside and the inside of the charging port, and a rotor with several blades attached radially is rotated in this cylindrical part. This is a mechanism that continuously supplies and discharges waste while performing upper and lower air seals. Waste filled from the opening above the charging path is received in the pocket between the blades of the rotor, and is discharged from the opening below the charging path from the cylindrical part as the rotor rotates.

  Moreover, in the said invention, the external discharge path extended further in the direction orthogonal to the extension direction of the said discharge path is formed in the edge part in the extension direction of the discharge path, and it leads to the exterior of an outer tank. Is preferred. In this case, the ash transported in the extending direction in the discharge path will be collected by the external discharge unit extending in the direction orthogonal to the extending direction, so that the ash can be easily recovered. Can do. As a result, when the discharge is accumulated in the pyrolysis chamber, it is possible to prevent a space in which no magnetized air is supplied from the pyrolysis chamber, so that waste can be reliably and efficiently processed.

  Moreover, in this invention, a low temperature pyrolysis processing system and a low temperature pyrolysis processing method can be implemented using the said low temperature pyrolysis processing furnace. That is, the invention of the low temperature pyrolysis treatment system is a low temperature pyrolysis treatment of a smoke purification device that removes a specific substance from soot generated by pyrolysis treatment in a low temperature pyrolysis treatment furnace and air discharged from the smoke purification equipment. And a circulation device for circulation to the furnace.

  Here, soot refers to those containing incompletely burned particles that are generated by heat treatment of waste, etc., mainly sulfur oxides and soot, but in some cases, harmful substances (cadmium, chlorine and Hydrogen chloride, fluorine, hydrogen fluoride and silicon fluoride, lead and its compounds, nitrogen oxides, dioxins and other air pollutants), and nuclear fuel materials (uranium, plutonium, thorium, etc.).

  According to the present invention as described above, since the specific substance is removed from the soot generated by the thermal decomposition process in the smoke purifier, it is possible to prevent the soot containing harmful substances from being released to the outside. I can. Furthermore, in the present invention, since the air exhausted from the smoke purification device is circulated again to the low-temperature pyrolysis furnace by the circulation device, the purified air can be reused as magnetized air, thereby further protecting the environment. Can contribute.

  Another invention of the low-temperature pyrolysis treatment system is a drying device for drying the waste put into the low-temperature pyrolysis treatment furnace, and the waste from the drying device is put into the inlet of the low-temperature pyrolysis treatment furnace. A charging device, a moisture content measuring device for measuring the moisture content of waste associated with charging into the charging port, and a control device for controlling the operation of the drying device and the charging device based on the measurement result of the moisture content measuring device. Further prepare.

Furthermore, the invention of the low-temperature pyrolysis treatment method using the low-temperature pyrolysis furnace,
(1) a drying step of drying the waste thrown into the low-temperature pyrolysis furnace with a drying device;
(2) a moisture content measurement step for measuring the moisture content of the waste associated with the input to the input port;
(3) Based on the measurement result of the moisture content measuring device, a drying device for drying the waste material that is put into the low-temperature pyrolysis furnace , and the waste material from the drying device is put into the low-temperature pyrolysis furnace An input control process for controlling the operation of an input device to be input to the mouth ;
(4) A charging step of charging a predetermined amount of waste into the charging port of the low-temperature pyrolysis furnace from the drying device according to the control by the charging control step.

  Here, in a low-temperature pyrolysis furnace that decomposes waste at a low temperature without burning it at a high temperature, if a waste having a high water content is introduced, a highly sticky ash may be generated by the moisture. is there. Such sticky ash tends to adhere to the vicinity of the air supply holes and may block the air supply holes. In the present invention as described above, since a waste having a high moisture content is dried before being introduced into the low-temperature pyrolysis furnace, the moisture content suitable for treatment in the low-temperature pyrolysis furnace is included. Can be waste. As a result, it is possible to suppress an increase in the stickiness of the ash, and thus it is possible to prevent the ash from adhering to the air supply holes and to further ensure the air permeability of the air supply holes.

  Furthermore, in the present invention, the moisture content measuring device measures the moisture content of the waste to be introduced into the inlet, and the charging control device performs the operation of the drying device and the charging device based on the measurement result by the moisture content measuring device. For example, if the result of measurement by the moisture content measuring device is waste with a high moisture content, the charging device should be controlled so that the waste is introduced little by little into the inlet of the low-temperature pyrolysis furnace. Can do. Further, for example, the drying apparatus can be controlled to dry the waste so as to become a waste having a low moisture content. As described above, in the present invention, it is possible to supply a suitable amount for low-temperature pyrolysis and waste with an appropriate moisture content to the low-temperature pyrolysis furnace, so that magnetized air is continuously supplied to the entire pyrolysis treatment chamber. The waste can be efficiently subjected to low-temperature pyrolysis treatment.

  According to such an invention, due to the restricted ventilation of the excitation air, waste can be pyrolyzed at low temperature with no power and no power to produce ash, and the generation of dioxins is suppressed to a very small amount (within the standard). Among them, there is an effect that various kinds of waste can be treated reliably and efficiently. In particular, since the air supply holes for supplying the magnetized air can be prevented from being blocked by the ash after decomposition, it is possible to continuously supply an appropriate amount of magnetized air to the thermal decomposition treatment chamber. As a result, various wastes are directly and easily subjected to low-temperature pyrolysis treatment to produce ash, which has the effect of ultimately becoming a very small amount (for example, 5% or less). Furthermore, if ash is used as a soil conditioner, there is an effect that waste after the treatment is completely eliminated. Thereby, generation | occurrence | production of an incombustible substance can be prevented and waste can be processed reliably and efficiently by low cost.

It is explanatory drawing which shows schematic structure of the low-temperature pyrolysis processing system which concerns on embodiment. It is a front view of the heat treatment furnace concerning an embodiment. It is a side view of the heat treatment furnace concerning an embodiment. It is sectional drawing which shows the structure of the air supply part which concerns on embodiment from a side part. It is a top view which shows the positional relationship of the ash discharge | emission mechanism which concerns on embodiment. (A) is a top view which shows the structure of the ash discharge | emission member which concerns on embodiment, The figure (b) is the front view. (A) is a top view which shows the other structure of the ash discharge member which concerns on embodiment, The same figure (b) is the front view. It is explanatory drawing which shows a part of low temperature pyrolysis processing system which concerns on a modification. (A) is the schematic which shows the structure of the rotary valve which concerns on a modification, The figure (b) is explanatory drawing which shows the operation | movement.

(Low-temperature pyrolysis treatment system 100)
Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing a schematic configuration of a low-temperature pyrolysis processing system.

  As shown in FIG. 1, the low-temperature pyrolysis processing system 100 according to the present embodiment includes a storage device 140 that collects collected garbage, a kiln drying device 130 that performs a drying process on waste that is input to the heat treatment furnace 110, A boiler 150 that provides exhaust gas to the kiln drying device 130, a heat treatment furnace 110 that thermally decomposes the waste dried by the kiln drying device 130, and a specific substance in the flue gas discharged from the heat treatment furnace 110 is removed. And a smoke purification device 120.

  The storage device 140 is a device that stores collected waste, and for example, collects and accumulates waste discharged from farmland, waste generated in a disaster, and the like. This waste includes waste having a high moisture content. The waste stored in the storage device 140 is supplied to the kiln drying device 130 via a transport device 141 that transports the waste to the kiln drying device 130.

  The boiler 150 is a heat exchange device that transfers heat obtained by burning fuel to water and converts it into water vapor or hot water. In this embodiment, high-temperature exhaust gas generated by the boiler 150 is passed through a pipe 151 through a kiln. The drying device 130 is provided. The hot water generated in the boiler 150 is used for greenhouse cultivation, for example, and the used water is sent again to the boiler 150 by a pump or the like and reused.

  The kiln drying device 130 is a device that removes moisture adhering to the waste thrown in from the storage device 140 with the exhaust gas discharged from the boiler 150 and dries it. For example, the kiln drying device 130 rotates the rotary kiln to remove the waste. A rotary rotary kiln that is dried while stirring is used. A piping 151 for introducing exhaust gas from the boiler 150 is connected to the kiln drying device 130, and exhaust gas from the boiler 150 is used for the drying process.

  In the present embodiment, the kiln drying device 130 performs a drying process so that the moisture content of the waste is 50% to 65%, preferably 60%. Inside the kiln drying device 130 is provided a moisture content measuring device 130a for measuring the moisture content of the waste relating to the input to the charging device 70. The control device in the kiln drying device 130 supplies the waste to a predetermined amount. The water content is controlled to be. In addition, as the moisture content measuring device 130a, a weight sensor that measures the weight of the waste accumulated in the kiln drying device 130 is used, and the volume and weight of the waste in the input device 70, the moisture content of the waste, The water content of the waste may be determined from the weight data of the measured waste by preliminarily accumulating data indicating the correlation.

  In addition, for example, a pair of electrodes are provided facing the kiln drying device 130, an electric resistance type in which a current flowing between the electrodes is measured, and a change in the current is regarded as a change in the amount of moisture, is provided in the kiln drying device 130. Alternatively, a capacitance type may be used in which a current is passed through the waste and the change in capacitance (capacitance) is regarded as the amount of moisture. In addition, for example, a microwave equation that replaces the amount of electrical change such as attenuation due to moisture of the microwave with a moisture amount, an infrared equation that heats and drys the sample by infrared irradiation, and calculates the amount of moisture from the mass change due to evaporation of moisture, etc. An apparatus can also be used.

  And in the kiln drying apparatus 130, after carrying out the drying process until the moisture content of a waste will be 60% based on the measurement result of the moisture content measuring apparatus 130a, the conveying apparatus 131 which conveys wastes, such as a belt conveyor and a trolley. The operation is controlled to transport waste to the heat treatment furnace 110. Note that the amount of waste to be transported can be an arbitrary amount according to a user operation, or a predetermined amount may be transported. The heat treatment furnace 110 is an apparatus that decomposes the dried waste by heat treatment at a low temperature. The configuration of the heat treatment furnace 110 will be described later.

  The smoke purification device 120 is a device that removes a specific substance from the soot generated by the thermal decomposition treatment in the heat treatment furnace 110. The smoke purifier 120 has a sprinkling means 121 disposed on the upper part of the apparatus, makes the sprinkled water contact the soot passing through the inside of the apparatus, and adsorbs the pollutants contained in the flue gas to the water. Thereby, the water containing a pollutant can be collect | recovered as waste water. Here, soot refers to those containing incompletely burned particles that are generated by heat treatment of wastes, mainly sulfur oxides, soot, etc. In some cases, harmful substances (cadmium, Chlorine and hydrogen chloride, fluorine, hydrogen fluoride and silicon fluoride, lead and its compounds, nitrogen oxides, dioxins and other air pollutants), and nuclear fuel materials (uranium, plutonium, thorium, etc.). In the present embodiment, the air from which contaminants have been removed by the watering means is supplied again to the heat treatment furnace 110 by the circulation device 122.

  The circulation device 122 is a device that circulates the air discharged from the smoke purification device 120 to the heat treatment furnace 110, and a suction fan (not shown) for sucking the air purified from the smoke purification device 120, a heat treatment furnace A valve for adjusting the amount of air provided to 110 is provided.

(Configuration of heat treatment furnace 110)
Next, the configuration of the heat treatment furnace 110 will be described. FIG. 2 is a front view of the heat treatment furnace 110 according to the present embodiment, and FIG. 3 is a side view of the heat treatment furnace 110 according to the present embodiment. Moreover, FIG. 4 is sectional drawing which shows the protrusion part 31 which concerns on this embodiment from a side, and FIG. 5 is explanatory drawing which shows the ash discharge | emission mechanism 4 which concerns on this embodiment from the upper surface.

  2 and 3, the heat treatment furnace 110 according to the present embodiment includes an inner hollow outer tub 1 that stores waste therein. The outer tub 1 is formed on the upper portion of the outer tub 1 and discarded. An inlet 7 through which an object is introduced, an upper pyrolysis chamber 10 formed in the outer tub 1, and a lower pyrolysis formed in the lower portion of the upper pyrolysis chamber 10 formed in the outer tub 1. A processing chamber 3 and an air chamber 2 formed in the lower part of the lower pyrolysis processing chamber 3 and separated from the lower pyrolysis processing chamber 3 by a partition wall 1a are provided.

  The input port 7 is an opening for supplying waste into the outer tank 1. In the present embodiment, a charging device 70 is provided so as to protrude from the charging port 7. The charging device 70 is a device for charging the waste from the kiln drying device 130 into the charging port 7 of the heat treatment furnace 110, and is tapered so that the diameter increases upward. An opening / closing lid 71 is attached to the upper opening of the charging device 70 so as to be freely opened and closed. In addition, an opening / closing lid 72 is attached to the insertion port 7 so as to be openable and closable within the charging device 70. The opening / closing lids 71 and 72 are controlled to be opened and closed by a controller 12 such as a CPU.

  The upper pyrolysis processing chamber 10 is a means for temporarily holding the waste introduced from the inlet 7 and performing heat treatment on the waste. The upper pyrolysis chamber 10 is provided with an inner cylinder 9 which is provided with a gap between the inner wall of the outer tub 1 and is fixed or loosely fitted concentrically. The gap between the inner tub 9 and the outer tub 1 is formed. Thus, heat loss to the outside of the outer tub 1 is prevented as much as possible.

  In the upper pyrolysis chamber 10, a pipe 111 for discharging smoke exhausted by heat treatment on the side wall of the outer tub 1 is formed. This pipe 111 communicates from the lower pyrolysis chamber 3 and the upper pyrolysis chamber 10 to the smoke purification device 120 outside the outer tank 1, and the air in the lower pyrolysis chamber 3 and the upper pyrolysis chamber 10. It is the exhaust means which discharges. Inside the pipe 111, exhaust adjusting means 111a such as a fan is provided. The exhaust adjustment unit 111a adjusts the exhaust amount by the pipe 111 based on the monitoring result by the temperature sensor 6a or the pressure sensor 6c. Specifically, the monitoring result by the temperature sensor 6 a or the pressure sensor 6 c is input to the controller 12, and the exhaust adjustment unit 111 a is driven by the control of the controller 12, so that the smoke generated in the heat treatment furnace 110 is reduced. A predetermined amount is sucked and led to the smoke purifier 120.

  A lower pyrolysis chamber 3 is formed in the lower part of the upper pyrolysis chamber 10. The lower pyrolysis processing chamber 3 is a processing unit that decomposes waste with the magnetized air derived from the air chamber 2 to generate ash. In the present embodiment, the lower pyrolysis chamber 3 is made possible by inserting ignited paper or wood from a lid 33 provided on the side wall of the outer tub 1. The temperature in the lower pyrolysis chamber 3 rises to about 280 ° C. at the start of the heat treatment, but is stabilized at about 150 ° C. as the carbonization of the waste proceeds.

  The lower pyrolysis treatment chamber 3 and the air chamber 2 are separated by a partition wall 1a formed between the lower pyrolysis treatment chamber 3 and the air chamber 2, and the air chamber 2 and the lower pyrolysis treatment chamber. A part of the air is communicated with an air supply hole 31 a that communicates with 3. Specifically, the partition wall 1a is a plate-like member having the same width as the outer tub 1, and is formed extending in the horizontal direction. In the present embodiment, the outer peripheral portion of the partition wall 1 a is welded to the inner surface of the side wall of the outer tub 1, and separates the lower pyrolysis treatment chamber 3 and the air chamber 2. As shown in FIGS. 2 and 3, the partition wall 1 a is provided with a plurality of projecting portions 31 that penetrate the partition wall 1 a and project in the vertical direction toward the upper pyrolysis chamber 10. In this embodiment, the protrusion part 31 is formed in the thin plate shape over the full width of the partition 1a (outer tank 1), and is arrange | positioned along with three parallelly at predetermined intervals.

  Each projecting portion 31 is formed with an air supply hole 31a penetrating the interior of the projecting portion 31 in the vertical direction, and the lower pyrolysis chamber 3 and the air chamber 2 are partially communicated with each other by the air supply hole 31a. It has come to be. In the present embodiment, the air supply holes 31a are formed in a slit shape along the longitudinal direction of the protruding portion 31 over the entire width of the partition wall 1a. As a result, a large amount of magnetized air can be supplied to the entire lower pyrolysis chamber 3.

  As shown in FIG. 4, slopes 31 b and 31 b are formed at the upper portion of the protruding portion 31 so as to be inclined toward the discharge passage 42 described later so that the width (thickness) becomes narrower toward the tip portion. . The width d1 of the upper opening of the air supply hole 31a is formed to be about 5 mm, and the width d2 of the lower opening of the air supply hole 31a is set wider than the width d1 of the upper opening.

  The air chamber 2 is hollow inside by the partition wall 1 a and the side wall and bottom of the outer tub 1. One end of a feed pipe 5 that supplies air to the air chamber 2 is connected to the side wall of the air chamber 2, and magnetized air is introduced into the air chamber 2 from the outside. The feed pipe 5 is a feed means for feeding air into the air chamber 2 from the outside, and is formed of carbon (carbon) steel or the like. Intervened. A permanent magnet (for example, 4000 gauss) is installed oppositely in the active processing pipe 8 to magnetize the passing air to excite the air. About this air excitation, sufficient processing can be performed by increasing the capacity of the permanent magnet corresponding to the feed amount. In addition to permanent magnets, far-infrared generation minerals (such as tourmaline or barley stone) are accommodated in the active treatment pipe 8 and subjected to magnetic treatment and far-red treatment to activate air (excitation, ionization). It is also useful to promote.

  The other end of the feeding pipe 5 is connected to the smoke purification device 120, and the air from which the contaminants are removed by the circulation device 122 provided in the feeding pipe 5 is again air. It is supplied to the chamber 2. The circulation device 122 is an air supply adjustment unit that adjusts the amount of magnetized air supplied to the air chamber 2, and includes a valve, a fan (not shown), and the like that adjust the amount of air supplied to the air chamber 2. . In the circulation device 122, the monitoring result from the temperature sensor 6 a or the pressure sensor 6 c is input to the controller 12, and the amount of air supplied to the air chamber 2 is adjusted by a valve or a fan under the control of the control unit 12 to the air chamber 2 side. Supply air.

  Further, the feed pipe 5 is provided with an oxygen supply section 11 for introducing oxygen into the pipe, so that a predetermined amount of oxygen is supplied into the air chamber 2. The oxygen supply unit 11 is a device that supplies oxygen to the feed pipe 5, and a predetermined amount of oxygen is sequentially supplied to the feed pipe 5 under the control of the controller 12. As the oxygen supply unit 11, for example, liquid oxygen may be stored inside, and oxygen obtained by vaporizing the liquid oxygen may be sequentially distributed to the supply pipe 5, or the air may be sucked in from outside. Nitrogen may be removed from the gas to generate oxygen gas. PSA (Pressure Swing) separates oxygen and nitrogen in the air by putting a special zeolite (molecular sieve) that has the function of adsorbing nitrogen into the cylinder and repeatedly pressurizing and depressurizing. An adsorption type such as Adsorption (or Adsorption) or VSA (Vacuum Swing Adsorption) or a membrane that separates oxygen and nitrogen, and an oxygen-enriched membrane type that allows oxygen to permeate more than nitrogen when passing air can be used. Note that PSA is a method of adsorbing in a pressurized state and desorbing by depressurizing to normal pressure, and VSA is a method of adsorbing near normal pressure and regenerating and desorbing to a negative pressure.

  In addition, in this embodiment, arrangement | positioning on the feed pipe 5 of each apparatus is arrange | positioned in order of the oxygen supply part 11, the circulation apparatus 122, and the active treatment pipe 8 toward the heat treatment furnace 110 from the smoke purifier 120. However, the arrangement of each apparatus is not limited as long as the active treatment pipe 8 is arranged closer to the heat treatment furnace 110 than the oxygen supply unit 11. This is because air is magnetized by the active processing pipe 8 after oxygen is supplied by the oxygen supply unit 11.

  The magnetized air supplied from the feed pipe 5 into the air chamber 2 is inserted into the air supply hole 31 a of the protrusion 31 and supplied to the lower pyrolysis chamber 3. In the lower pyrolysis chamber 3 filled with magnetized air, waste is subjected to low heat treatment sequentially from the bottom. The lower pyrolysis chamber 3 is provided with monitoring means for monitoring the temperature, internal pressure and the like in the pyrolysis chamber. Specifically, there are a temperature sensor 6a for detecting the internal temperature, a pressure sensor 6c for detecting the internal pressure, and a weight sensor 6b for measuring the weight of the waste accumulated in the lower pyrolysis treatment chamber 3. The detection result detected by each sensor is input to the controller 12.

  Further, an ash discharge mechanism 4 that discharges ash generated by decomposing waste to the outside is provided in the lower part of the lower pyrolysis treatment chamber 3. As shown in FIG. 5, the ash discharge mechanism 4 includes a plurality of internal discharge portions 41 formed inside the outer tub 1 and a plurality of external discharge portions 44 formed outside the outer tub 1. ing.

  The internal discharge part 41 is extended along the protrusion part 31, is extended along the discharge path 42 which has upper opening, and the discharge path 42, and conveys the discharge material in the discharge path 42 in the extending direction. Conveying means 43 is comprised. Specifically, the discharge path 42 is formed between a plurality of projecting portions 31 arranged at a predetermined interval or between the projecting portions 31 and the side wall of the outer tub 1, and the bottom portion is configured by a partition wall 1 a. It has a hollow, substantially rectangular parallelepiped shape. In the present embodiment, as shown in FIG. 5, the discharge path 42 is formed with four discharge paths 42 so as to be disposed on both sides of each protrusion 31. Each discharge path 42 is open at both ends in the extending direction and communicates with the discharge path 45 of the external discharge portion 44.

  As shown in FIG. 6, the transport unit 43 includes a shaft portion 43 a that extends along the extending (longitudinal) direction of the discharge path 42. The shaft portion 43a is pivotally supported in the discharge passage 42 by a fixing member (not shown) and is rotatable about the central axis of the shaft portion 43a. And the screw member 43b which protrudes in the radial direction of the shaft part 43a, and extends spirally toward the extending direction is provided on the side peripheral surface of the shaft part 43a. By rotating the shaft portion 43a, the helical screw member 43b is rotated to push out the ash to the external discharge portion 44 which is the discharge direction. In particular, in this embodiment, as shown in FIG. 5, the rotation of the adjacent shaft portions 43a and 43a is expanded in the opposite direction, and the ash pushed out by the screw member 43b is in the extending direction. It is designed to be discharged to the opposite side. Thereby, the amount of ash discharged to the external discharge unit 44 is dispersed.

  On the other hand, as shown in FIG. 5, the pair of external discharge portions 44, 44 are orthogonal to the extending direction of the internal discharge portion 41 so as to sandwich each internal discharge portion 41 at both ends in the extending direction of the discharge passage 42. It is extended in the direction to do. And the external discharge part 44 is arrange | positioned in the internal hollow discharge path 45 connected with the edge part in the extension direction of the discharge path 42, and the discharge path 45, and conveys the discharge material in the discharge path 45 in the extension direction And conveying means 46.

  The discharge path 45 has a shape in which the discharge path 42 side is opened and the other three directions are surrounded by wall members. Further, wall members are also formed at both ends of the discharge path 45 in the extending direction, whereby the external discharge portions 44 and 44 are blocked from the outside.

  As shown in FIG. 6, the transport means 46 formed in the discharge path 45 includes a shaft portion 46 a extending along the longitudinal direction of the discharge path 45, as shown in FIG. 6. The shaft portion 46a is pivotally supported in the discharge passage 45 by a fixing member (not shown), and is rotatable about the central axis of the shaft portion 46a. A screw member 46b that protrudes in the radial direction of the shaft portion 46a and extends spirally in the extending direction is provided on the side peripheral surface of the shaft portion 46a. By rotating the shaft portion 46a, the screw member 46b is rotated to push out the ash in the discharge direction.

  In the present embodiment, the shaft portions 46a of the pair of conveying means 46, 46 rotate in the same direction, and push out the ash discharged from the internal discharge portion 41 in a certain direction. An ash extraction part 47 that collects a certain amount of ash and extracts the ash to the outside is formed at the end in the extruded direction. A part of the ash extraction part 47 can be opened, and the discharge path 45 communicates with the outside of the outer tub 1.

  In addition, as another structure of the conveyance means 43 and 46, as shown to Fig.7 (a) and (b), it faces to the radial direction of the shaft parts 43a and 46a on the side peripheral surface of the shaft parts 43a and 46a. Alternatively, the protruding blade portion 48b may be formed. The blade portion 48b has a shape whose diameter is increased in the discharge direction of the discharge passages 42 and 45, and a large number of blade portions 48b having a shape are connected to the shaft portions 43a and 46a. Then, by controlling the controller 12, the shaft portions 43a and 46a are moved back and forth along the extending direction thereof, whereby the blade portion 48b is moved back and forth, and the ash deposited in the moving space portion of the blade portion 48b. Is pushed out to the ash extraction part 47. In addition, these conveyance means 43, 46, and 48 are not limited to the structure which drives a shaft by control of the controller 12, For example, you may rotate or reciprocate manually.

  In addition, a solar cell (not shown) is installed on the upper part of the outer tub 1, and the power is supplied as a power source for a fan or a sensor. When the sun does not come out (for example, at night), a storage battery is used. Further, the heat treatment furnace 110 is provided with a controller 12 composed of a controller board or the like on which a CPU, a memory and the like are arranged. The controller 12 includes a charging device 70, a circulation device 122, and an oxygen supply unit 11. , And the ash discharge mechanism 4, the kiln drying device 130, the transport device 131, and other devices can be controlled.

  For example, the controller 12 can control the opening / closing operation of the opening / closing lid 71 and the opening / closing lid 72 of the charging device 70. In this case, when the controller 12 receives a user operation to start throwing waste into the throwing device 70, the controller 12 opens the opening / closing lid 71 and drives the transport device 131 to throw waste into the throwing device 70. At this time, a sensor (not shown) for detecting the position of the loaded waste is provided on the top of the input device 70, and the controller 12 drives the transport device 131 when a detection signal is acquired from this sensor. While stopping, the open / close lid 71 may be closed. The transport device 131 may be driven using a control device provided in the transport device 131.

  Further, the controller 12 acquires from the temperature sensor 6a a signal that the temperature of the lower pyrolysis chamber 3 has reached a predetermined temperature (280 ° C.), opens the open / close lid 72 based on the signal, and generates a predetermined amount of waste. Can be put into the upper pyrolysis chamber 10 and the lower pyrolysis chamber 3. Further, the controller 12 controls the opening / closing operation of the opening / closing lid 72 and the driving of the conveying device 131 based on the detection results of the temperature sensor 6a, the pressure sensor 6c, and the weight sensor 6b installed in the lower pyrolysis processing chamber 3. You can also Specifically, the controller 12 determines whether the temperature detected by the temperature sensor 6a is a predetermined temperature (150 ° C.) or the pressure detected by the pressure sensor 6c is a predetermined pressure, and the waste sensor measured by the weight sensor 6b. When the weight is equal to or less than a predetermined threshold value, the transport device 131 is driven to transport new waste to the input device 70, and the open / close lid 72 is controlled to add a new waste in the pyrolysis chamber. Put the waste.

  In addition, when holding a fixed amount of waste in the charging device 70 and sequentially charging a predetermined amount into the thermal decomposition chamber, the controller 12 controls only the open / close lid 72. The amount of waste thrown into the pyrolysis chamber is stored in advance in the memory of the controller 12, and the controller 12 refers to the inside of the memory according to the measurement result from each sensor, and a predetermined amount of waste is stored. Is input. The controller 12 may control the operation of the input device 70 in accordance with the measurement result by the moisture content measuring device 130a to change the amount of waste input to the thermal decomposition treatment chamber. In this case, the controller 12 accumulates the input amount data in which the input amount corresponding to the moisture content is determined in the memory, acquires the moisture content data of the waste measured from the kiln drying device 130, and calculates the input amount. decide.

  Further, the controller 12 adjusts the temperatures of the upper pyrolysis chamber 10 and the lower pyrolysis chamber 3. The temperature control of the low temperature treatment can be performed by controlling the supply / exhaust amount. For example, the output of the temperature sensor 6a is monitored by the controller 12, and the air supply amount is controlled by opening and closing the valve of the circulation device 122 of the feed pipe 5 according to the temperature, or the rotation amount of the exhaust adjusting means 111a. Is controlled to adjust the exhaust amount to adjust the processing temperature to less than 150 to 280 ° C.

  Further, the controller 12 adjusts the amount of oxygen supplied from the oxygen supply unit 11 to control the air led out to the air chamber 2 so that the oxygen concentration is about 22%, and to control the circulation device 122. Thus, the amount of air supplied to the air chamber 2 can also be controlled.

  Further, the controller 12 adjusts the pressures in the upper pyrolysis chamber 10 and the lower pyrolysis chamber 3. The pressure control for the low-temperature treatment can be performed by controlling the supply / exhaust amount. For example, the output of the pressure sensor 6c is monitored by the controller 12, and the supply amount is controlled by opening and closing the valve of the circulation device 122 of the supply pipe 5 according to the pressure, or the rotation amount of the exhaust adjustment means 111a. To control the internal pressure of the upper pyrolysis chamber 10 and the lower pyrolysis chamber 3.

  Furthermore, the controller 12 has a function of adjusting the temperature or pressure of the upper pyrolysis chamber 10 and the lower pyrolysis chamber 3 according to the type of waste. More specifically, for example, when processing waste containing fats and oils such as coconut shells, gas is generated from the decomposed fats and oils, and the temperature and pressure in the pyrolysis chamber increase too much, resulting in an ignition phenomenon. May occur. In this case, the temperature and internal pressure in the upper pyrolysis chamber 10 and the lower pyrolysis chamber 3 are monitored by the temperature sensor 6a or the pressure sensor 6c. The air supply / exhaust amount of the air in the thermal decomposition treatment chamber is adjusted by the circulation device 122 and the exhaust adjustment means 111a to slow down the decomposition treatment speed and reduce the ratio of the air (oxygen) in the treatment chamber to the gas. Reduce the risk of ignition and explosion. Accordingly, it is possible to prevent the waste from burning due to the ignition phenomenon and hinder the low-temperature thermal decomposition, and it is possible to prevent the safety of the operator from being lowered by the flame caused by the combustion.

(Operation of low-temperature pyrolysis processing system)
The usage state of the low-temperature pyrolysis processing system 100 will be described. First, waste accumulated in the storage device 140 is supplied to the kiln drying device 130 by a predetermined amount via the transport device 141. This waste has a high moisture content. On the other hand, in the boiler 150, the exhaust gas having the heat generated by the heat exchange process is provided to the kiln drying device 130 via the pipe 151.

  In the kiln drying device 130, the waste material input from the storage device 140 is dried by the exhaust gas discharged from the boiler 150 to remove moisture attached to the waste material input to the heat treatment furnace 110. At this time, the kiln drying device 130 controls the waste to have a predetermined moisture content based on the measurement result by the moisture content measuring device 130a. Here, the drying treatment is performed so that at least the water content of the waste is about 60% (50% to 65%).

  After a certain amount of the dried waste is stored, the operation of the transfer device 131 is controlled based on the measurement result by the moisture content measuring device 130a. Here, since the drying process is performed so that the moisture content of the waste is about 60% (50% to 65%), a predetermined amount corresponding to the moisture content is conveyed to the heat treatment furnace 110 by the conveyance device 131. The In the heat treatment furnace 110, the opening / closing lid 71 is opened under the control of the controller 12, and waste is thrown in from the charging port 7. When the waste is accumulated to a predetermined position in the charging device 70, the opening / closing lid 71 is closed. To do. At this time, moisture content data indicating the moisture content of the conveyed waste is also transmitted to the controller 12.

  Next, the lid 33 leading to the lower pyrolysis chamber 3 is opened, and the ignited paper or wood is inserted and ignited. In this case, air excited by a permanent magnet (with barley stone and tourmaline) is supplied from the air supply hole 31a to the lower pyrolysis chamber 3 through the air chamber 2, so that the waste is well heat-treated.

  Next, in the heat treatment furnace 110, the thermal power supply air is adjusted to adjust the temperature to about 280 ° C., and after adjusting the pressure to a predetermined value, a predetermined amount of waste conveyed from the kiln drying device 130 is input. Put in mouth 7. Specifically, the controller opens the open / close lid 72 and causes the waste to enter the lower pyrolysis chamber 3 to perform heat treatment. At this time, the controller 12 opens the open / close lid 72 so that a predetermined amount or a preset amount of waste according to the moisture content of the waste is put into the lower pyrolysis chamber 3. To control. In the upper pyrolysis chamber 10 and the lower pyrolysis chamber 3, the waste is decomposed into ash.

  During this time, the controller 12 rotates the shaft portions 43 a and 46 a to convey the ash accumulated in the discharge path 42 to the ash extraction portion 47. At this time, the controller 12 reverses the rotation of the adjacent shaft portions 43a to discharge the ash in each discharge path 42 to the opposite side. Thus, in this embodiment, the generated ash is discharged from the lower pyrolysis chamber 3 while the waste is subjected to low-temperature heat treatment.

  At this time, in this embodiment, the waste accumulated in the input device 70 is sequentially input into the upper pyrolysis chamber 10 and the lower pyrolysis chamber 3 under the control of the controller 12. Specifically, the controller 12 determines that the weight detected from the weight sensor 6b in the lower pyrolysis chamber 3 is a predetermined threshold, the detected temperature from the temperature sensor 6a is 150 ° C. or less, and When the pressure detected by the pressure sensor 6c falls within the predetermined value range, the controller 12 opens the open / close lid 72, and the new waste (the water content of the waste is stored in the charging device 70). A predetermined amount or a preset amount) is input, and then the opening / closing lid 72 is closed.

  Meanwhile, magnetized air is sent from the air chamber 2 through the air supply holes 31a. In this way, if low temperature processing is performed while sending magnetized air, newly filled waste is sequentially processed from the bottom. The smoke generated by the treatment is divided into rising smoke and falling smoke. The smoke that has risen in this case flows into the pipe 111 by the exhaust adjustment means 111a and flows in the smoke purifier 120. In the exhaust gas, fine particles of pollutants contained in the smoke are captured by the water sprayed from the sprinkling means 121 while flowing in the smoke purifier 120. Since the large particles capturing the fine particles sink into the water, the air in the smoke purification device 120 is purified. The air from which the contaminants have been removed is forcibly sucked into the feed pipe 5 and supplied again to the heat treatment furnace 110.

  At this time, the air flowing through the feed pipe 5 increases in the amount of oxygen by the oxygen supply unit 11 installed in the feed pipe 5 and passes through the active processing pipe 8 installed in the feed pipe 5. Is activated. In the present embodiment, oxygen is supplied by the oxygen supply unit 11 so that the oxygen concentration in the air becomes about 22% under the control of the controller 12. In this way, the amount of oxygen increased and the activated air is adjusted in the amount of air supplied by the valve of the circulation device 122 or the like, and again enters the lower pyrolysis treatment chamber 3 from the air chamber 2 through the protrusion 31. Supplied. When there is no waste in the charging device 70, a predetermined amount of waste is transferred again to the heat treatment furnace 110 by the transfer device 131, and is sequentially input to the upper pyrolysis chamber 10 and the lower pyrolysis chamber 3.

  The controller 12 adjusts the temperature or pressure of the upper pyrolysis chamber 10 and the lower pyrolysis chamber 3 according to the type of waste. Specifically, when the waste to be treated is a waste containing fats and oils such as coconut shells, the temperature sensor 6a or the pressure sensor 6c determines the temperature in the upper pyrolysis chamber 10 and the lower pyrolysis chamber 3 or The internal pressure is monitored, and when the temperature or internal pressure in the processing chamber becomes high, the air supply / exhaust amount of the air in the thermal decomposition processing chamber is adjusted by the circulation device 122 or the exhaust adjusting means 111a to increase the speed of the decomposition processing. In addition to slowing down, the ratio of air (oxygen) to gas in the processing chamber is reduced to reduce the risk of ignition and explosion.

(Action / Effect)
According to this embodiment, since the waste is heat-treated at a low temperature (for example, 280 ° C. or less), dioxins are not separated, but the concentration of dioxins is low in both smoke and ash. Further, since the waste is only ash, the remaining weight is 5% or less and the capacity is about 5%. The magnetization of air is performed in a permanent magnetic field of, for example, 2000 gauss to 4000 gauss, and a process of 0.1 m3 / min to 1 m3 / min is performed.

  Further, by passing the supplied air through a strong magnetic field, oxygen in the air is ionized and its activity is improved (strengthening the oxidizing power). As a result, the thermal decomposition process is promoted. That is, unlike general decomposition processing, even low-temperature oxidation (low-temperature processing) is processed rapidly. By the activation of the oxygen, soot is decomposed as if it burns or even faster.

  Specifically, as in this embodiment, ceramic ash is generated by taking in air (oxygen) controlled by a special structure space and high-density magnetic flux and decomposing the material. Once generated, the ceramic ash itself becomes a heat source, and the materials to be added thereafter are successively pyrolyzed at low temperatures to continue to generate ceramic ash. Specifically, gas plasma in an ionized state is generated by a permanent magnet and heat (150 ° C. to 280 ° C.). When a small amount of oxygen is inhaled into the plasma, negative ions, which are highly reactive electronic oxygen, are generated. Oxygen that has become negative ions has an extremely strong oxidizing power, so that dioxins and harmful substances can be oxidatively decomposed.

  Further, the oxidatively decomposed raw material becomes a concentrated magnetic ionic liquid and concentrated magnetic ionic ceramic ash, and can be recycled for uses such as water purification, soil improvement, deodorization effect, insect proofing, antibacterial and antifungal. As described above, according to the present embodiment, it is possible to use a pyrolysis furnace which is safe for the environment and does not require an operation cost in a wide range of organic matter disposal.

  Moreover, in this embodiment, the protrusion part 31 which penetrates the air chamber 2 and the lower pyrolysis process chamber 3 is protruded toward the pyrolysis process chamber. And since the protrusion part 31 is provided with the air supply hole 31a which penetrates the protrusion part 31 up and down, and connects an air chamber and a thermal decomposition process chamber, the ash ( (Emission) is dropped around the protruding portion 31 and on the surface of the partition wall 1a, so that ash is deposited near the opening of the air supply hole 31a, and the opening of the air supply hole 31a is blocked by ash. Can be prevented. As a result, in this embodiment, air permeability of the air supply holes 31a can be ensured, and the magnetized air can be continuously supplied to the entire thermal decomposition treatment chamber. And it can process efficiently.

  In particular, slopes 31b and 31b that are inclined toward the discharge path 42 are formed in the upper part of the protrusion 31. Therefore, the ash that has fallen on the upper part of the protrusion 31 is discharged into the discharge paths 42 by the slopes 31b and 31b. , 42, the air supply holes 31a can be more air permeable.

  Moreover, in this embodiment, since the discharge path 42 is formed in the lower part of the lower pyrolysis process chamber 3, and each protrusion part 31 is extended along each discharge path 42, a lower pyrolysis process chamber The ash (discharged matter) decomposed in 3 falls from the projecting portion 31 and accumulates in the lower discharge path 42, and is then conveyed by the conveying means 43 in the extending direction. As a result, the ash accumulated in the lower part of the lower pyrolysis chamber 3 can be efficiently recovered, so that the ash is accumulated in the lower pyrolysis chamber 3 and a part of the lower pyrolysis chamber 3 is collected. Therefore, it is possible to prevent the generation of a space in which no magnetized air is supplied, and it is possible to reliably and efficiently treat waste.

  Further, the end of the discharge path 42 in the extending direction is further provided with a discharge path 45 extending in a direction perpendicular to the extending direction of the discharge path 42 and leading to the outside of the outer tub 1. The ash conveyed by the path 42 is collected by the discharge path 45, and the ash can be easily recovered. Thereby, the magnetized air can be continuously supplied to the entire thermal decomposition processing chamber, and the waste can be reliably and efficiently processed.

  Further, in the present embodiment, since the waste is dried by the kiln drying device 130 as a premise of putting the waste into the heat treatment furnace 110, the moisture content (50%) appropriate for the treatment in the heat treatment furnace 110 is obtained. To 65%). As a result, it is possible to prevent the ash from adhering to the air supply holes by suppressing the increase in the stickiness of the ash. Thereby, since the air permeability of the air supply hole can be ensured, the magnetized air is continuously supplied to the entire thermal decomposition treatment chamber, and the waste can be processed efficiently.

  Further, the heat treatment furnace 110 in this embodiment controls the operation of the charging device 70 in order to efficiently heat the waste at a low temperature (below the dioxin generation temperature, 150 ° C. to 280 ° C.) using magnetized air. Thus, charging into the upper pyrolysis chamber 10 and the lower pyrolysis chamber 3 is controlled. That is, when the temperature detected by the temperature sensor 6a is a predetermined temperature (150 ° C.) and the weight measured by the weight sensor 6b is equal to or less than a predetermined threshold value, the controller 12 Since a predetermined amount of waste is introduced into the chamber, it is possible to maintain an optimum amount for the decomposition process in the pyrolysis chamber, and as a result, magnetized air is continuously supplied to the entire pyrolysis chamber. Waste can be processed efficiently.

  Moreover, in this embodiment, since the quantity thrown into the whole thermal decomposition process chamber can be changed according to the moisture content of the waste measured by the moisture content measuring device 130a, the moisture content is 50% to 65%. Within this range, an appropriate amount of waste according to the moisture content can be supplied to the low-temperature pyrolysis furnace, so that magnetized air can be supplied more efficiently and waste can be processed efficiently. .

  Furthermore, in this embodiment, since the specific substance is removed from the smoke generated by the thermal decomposition process in the smoke purification apparatus 120, it is possible to prevent the emission of smoke containing harmful substances to the outside. . Moreover, according to this embodiment, since the air exhausted from the smoke purifier 120 is circulated again to the heat treatment furnace 110 by the circulation device 122, the purified air can be reused as magnetized air. It can contribute to environmental protection more.

  In addition, since the supply pipe 5 includes the oxygen supply unit 11, air having a low oxygen concentration used for the decomposition treatment by the heat treatment furnace 110 can be changed to air having an appropriate oxygen concentration for the decomposition treatment. . As a result, waste can be reliably and efficiently processed in the pyrolysis chamber. In the present embodiment, the circulation device 122 maintains the relationship between the heat treatment temperature and the air supply amount accurately by performing forced air supply using a fan or adjusting the air supply amount based on the opening of the valve. Thus, the supply air can be supplied without excess or deficiency.

  In particular, in this embodiment, when processing waste containing oil and fat such as coconut shell, the temperature in the upper pyrolysis chamber 10 and the lower pyrolysis chamber 3 is measured by the temperature sensor 6a or the pressure sensor 6c. When the temperature or internal pressure in the processing chamber becomes higher, the air supply / exhaust amount of the air in the thermal decomposition processing chamber is adjusted by the circulation device 122 or the exhaust adjustment means 111a, and the speed of the decomposition processing is monitored. In addition, the ratio of air (oxygen) to gas in the processing chamber is reduced to reduce the risk of ignition and explosion. Accordingly, it is possible to prevent the waste from burning due to the ignition phenomenon and hinder the low-temperature thermal decomposition, and it is possible to prevent the safety of the operator from being lowered by the flame caused by the combustion.

  In addition, about the air excitation in this embodiment, sufficient processing can be performed by increasing the capacity | capacitance of a permanent magnet according to a supply amount. It is also useful to fill the processing pipe connected to the feeding pipe 5 with ceramics that generate far-infrared rays and obtain a synergistic effect with the magnetic force of the permanent magnet. Such a device is in principle a batch type, and can process 100 kg to 1000 kg at a time, or an amount corresponding to the size of the device at a time, and a little continuous processing (for example, a device of 100 kg capacity). Even if it is, processing of 300 kg is also possible by sequential charging). In this case, 100 kg can be added after a lapse of a certain time after the first charging (for example, 3 hours after the start of heat treatment), and the final 100 kg can be added after the next 2 hours. Moreover, there is no problem even if it is continuously input at intervals of 2 hours.

  In the present embodiment, the lower pyrolysis chamber 3 and the upper pyrolysis chamber 10 are separated in the lower pyrolysis chamber 3 in the upper pyrolysis chamber 10 by uniformly mixing excited air. The drying and heat treatment are performed smoothly and the air and the heat treatment gas are circulated, and the use of the high temperature gas, the drying, and the heat treatment are sequentially performed from the lower part to the upper part.

  In addition, since the upper pyrolysis chamber 10 is provided on the inner side of the double wall, the highest temperature portion is thermally shielded. However, the outer tub wall has a temperature of about 60 ° C. or lower, and there is no risk of burns even if the operator touches it. This is because, since the heat treatment temperature in the upper pyrolysis chamber is low, radiant heat is hardly transmitted to the outer tank wall. This is also because the gas flows (falls) through the gap between the outer tank wall and the inner cylinder.

(Example of change)
In the above-described embodiment, the air supply holes 31a are formed in a slit shape over the entire width of the partition wall 1a. However, the present invention is not limited to this, as long as an appropriate amount of magnetized air in the lower pyrolysis chamber 3 can be supplied. For example, a configuration in which a plurality of air supply holes having a predetermined size are provided at predetermined intervals may be employed. Further, in the above-described embodiment, the air supply hole 31a is configured to penetrate the protruding portion 31 in the vertical direction. However, in the present invention, it is only necessary to supply an appropriate amount of magnetized air in the lower pyrolysis processing chamber 3, for example, at a predetermined angle. It may be tilted or may be bent in a substantially L shape at the top of the protruding portion 31, and an opening portion may be formed on the side surface of the protruding portion 31. Even when an opening is formed in addition to the upper part of the air supply hole 31a, the distance from the upper part of the protrusion 31 to the upper surface of the partition wall 1a is kept at a predetermined distance, and the ash is discharged before the ash reaches the opening. It is conveyed outside by the mechanism 4.

  In the present embodiment, a relatively small heat treatment furnace (for example, 1000 kg processing at a time) has been described. However, the structure of the thermal decomposition chamber, waste input equipment (for example, automatic input), and the efficiency of the smoke purifier, Can increase the processing capacity (for example, 1000 kg to 10000 kg) or can be a continuous processing apparatus. As the processing capacity increases, it is natural to increase the supply processing capacity corresponding to this. In this case, it is necessary to excite the supply air and maintain the low-temperature pyrolysis treatment.

  In the above-described embodiment, the drying process by the kiln drying apparatus 130 and the decomposition process by the heat treatment furnace 110 are separated, and after the drying process, the heat treatment furnace 110 is driven to perform the decomposition process. The drying process by 130 and the decomposition process by the heat treatment furnace 110 may be performed continuously. In this case, the controller of the transfer device 131 and the controller 12 of the heat treatment furnace 110 control each part based on the moisture content measuring device 130a that detects the moisture content of waste and the sensor that detects the amount of waste. Then, the moisture content of the waste, the transport amount, the transport timing, and the like are adjusted, and the process of drying the waste and the thermal decomposition process are controlled so as to be continuously processed.

  In the above-described embodiment, when processing waste containing oil and fat, the temperature and internal pressure in the upper pyrolysis chamber 10 and the lower pyrolysis chamber 3 are monitored by each sensor, and the temperature and internal pressure in the process chamber are monitored. However, in order to prevent the above ignition phenomenon more reliably, the heat supply and exhaust amount of air in the thermal decomposition treatment chamber is adjusted by the circulation device 122 and the exhaust adjustment unit 111a. Even if a rotary valve 80 is provided at the inlet 7 through which waste is introduced into the decomposition chamber, the airtightness of the upper pyrolysis chamber 10 and the lower pyrolysis chamber 3 is improved, and finer temperature adjustment and internal pressure adjustment can be realized. Good.

  Hereinafter, the low temperature pyrolysis processing system 100a using the rotary valve 80 will be described. FIG. 8 is an explanatory diagram showing a part of the low-temperature pyrolysis processing system 100 according to the modification. In the present embodiment, the same components as those in the first embodiment described above are denoted by the same reference numerals, and the functions and the like are the same unless otherwise specified, and the description thereof is omitted. Moreover, although the arrangement location of each apparatus may be changed, its function is the same unless otherwise specified.

  As shown in FIG. 8, the low-temperature pyrolysis processing system 100a includes a heat treatment furnace 110a, a smoke purification device 120, and a tar recovery device 160 installed between the heat treatment furnace 110a and the smoke purification device 120. . In addition, although not shown in figure, also in the low-temperature pyrolysis processing system 100a, the storage apparatus 140, the kiln drying apparatus 130, and the boiler 150 shall be provided similarly to embodiment mentioned above.

  The tar recovery device 160 is a device for storing and recovering tar contained in the flue gas discharged from the heat treatment furnace 110 in an internal space, and a tar circulation pump 162 is provided at the lower part of the device. By driving the pump 162, tar which is a sticky oily liquid obtained by thermal decomposition of an organic substance can be recovered. The recovered tar can be used as a repellent for insecticides and pests. In addition, a pipe 161 connected to the smoke purification device 120 is formed on the upper wall of the tar collection device 160 so that air after the tar is collected is sent to the smoke purification device 120. .

  The smoke purifier 120 is provided with watering means 121 as in the above-described embodiment. Here, a shower pump 129 for sending water to the watering means 121 is provided at the lower part of the apparatus. This shower pump 129 is also installed in the smoke purification device 120 of the embodiment. In addition, the smoke purifier 120 includes a chimney 123 that discharges air from which contaminants have been removed. In this embodiment, the cleaned air is discharged to the outside through the chimney 123. However, similarly to the above-described embodiment, the chimney 123 and the air supply pipe are connected to thermally decompose the cleaned air. It may be reused for processing.

  In the heat treatment furnace 110a in the modified example, the upper pyrolysis chamber 10, the lower pyrolysis chamber 3, the air chamber 2, the ash discharge mechanism 4, and the like are arranged in the outer tub 1 in the same manner as the above-described embodiment. As described above, the air supply pipe 5 is connected to the air chamber 2, and the air supply pipe 5 is provided with a circulation device 122, an oxygen supply unit 11, and an activation treatment pipe 8. In this modified example, the active treatment pipe 8 is also provided around the protrusion 31 provided in the air chamber 2. The activation processing pipe 8 may be provided in at least one of the air supply pipe 5 and the protruding portion 31. In addition, here, the various sensors 6a to 6c, the control unit 12, and the like are not illustrated, but each configuration described in the above-described embodiment is included.

  In this modified example, a duct 112 for exhausting smoke is provided on the upper wall of the outer tub 1, and a pipe 111 for exhausting the smoke generated by the heat treatment is formed in the duct 112. The duct 112 is provided with a flue gas temperature sensor 112a which is a monitoring means for measuring the temperature of the decomposed flue gas, and this temperature information is input to the control unit 12 so that the amount of flue gas can be determined. It is adjustable. Note that the temperature sensor 6a for measuring the temperature in the processing chamber is separately provided in the processing chamber. The pipe 111 is connected to a tar recovery device 160, and the pipe 111 is provided with an exhaust adjusting means 111a such as a suction blower on the tar recovery device 160 side. The exhaust adjusting means 111a can adjust the amount of air exhausted from the heat treatment chamber based on the monitoring result by the smoke emission temperature sensor 112a in addition to the various sensors 6a to 6c.

  In this modification, a rotary valve 80 is provided between the charging device 70 and the charging port 7 of the outer tub 1. The structure of the rotary valve 80 will be described in detail. FIG. 9A is a schematic diagram illustrating a configuration of a rotary valve 80 according to a modification, and FIG. 9B is an explanatory diagram illustrating the operation thereof. As shown in FIG. 9A, the rotary valve 80 is provided with a casing 83 for forming a charging path 81 communicating with the outside and the inside, and a cylindrical portion 82 having a hollow inside is formed in the middle of the charging path 81. In this cylindrical portion 82, a rotor 86 having a plurality of rotating blades 88 attached radially is rotated to continuously supply and discharge waste while air-sealing the upper and lower sides.

  The outer tub 1 is connected to the lower side of the casing 82 via a valve support member (not shown), and the inner space (pyrolysis chamber) of the outer tub 1 and the charging path 81 are communicated. A charging device 70 is connected to the upper side of the casing, and the internal space of the charging device 70 and the charging path 81 are communicated with each other. The feeding device 70 is formed in a tapered shape as in the above-described embodiment, and an opening / closing lid 71 that covers the upper opening is provided in the upper opening of the feeding device 70.

  The rotor 86 has a rotating shaft 87 supported via a bearing (not shown) provided in the cylindrical portion 82, and a plurality of rotating blades 88 provided radially on the rotating shaft 87. In the present embodiment, the rotary blades 88 are provided with an interval of about 90 degrees, and a pocket portion 84 is formed between the rotary blades 88. Further, the tip end portion 88 a of each rotary blade 88 is capable of sliding contact with the inner peripheral surface 82 a of the cylindrical portion 82. With such a configuration, the cylindrical portion 82 seals the internal space of the outer tub 1 and the internal space of the charging device 70.

  The rotor 86 can be driven by the controller 12. Specifically, when the rotational force is transmitted to the rotating shaft 87 by the control of the controller 12, the rotor 86 is a space between the upper side and the lower side of the input path 81 as shown in FIG. Is rotated in the direction indicated by the arrow in the figure while being partitioned by a plurality of rotary blades 88. By such rotation, the waste W received in the pocket portion 84 from the internal space of the input device 70 is moved downward from the cylindrical portion 82 to the input path 81 along with the rotation of the rotor 86, and from the input port 7. It is thrown into the pyrolysis process.

  As described above, in this modification, by providing the rotary valve 80 and rotating the rotor 86, waste can be continuously supplied and discharged while the upper and lower parts are air-sealed, so that the hermeticity of the thermal decomposition chamber is improved. Finer temperature adjustment and internal pressure adjustment can be realized.

  Further, in this modified example, such a rotary valve 80 is arranged at the inlet 7 and is arranged at the external extraction part 45 in the ash discharge mechanism 4. In FIG. 8, the rotary valve 80 a is arranged in the external extraction part 45 arranged on the right side, but it is also assumed that it is provided in the left external extraction part 45. The rotary valve 80 a is disposed on the lower surface of the ash extraction part 47 in the external extraction part 45. With such a configuration, when the ash discharging mechanism 4 is driven and the ash subjected to the low thermal decomposition process is fed into the ash extraction part 47, the ash falls from the ash extraction part 47 to the pocket part 84 of the rotary valve 80a. As the rotor 86 rotates, the dropped ash is moved from the cylindrical portion 82 to the lower side of the input path 81 and discarded from the discharge port to the outside.

  Thus, by arranging the rotary valve 80a also in the ash discharge mechanism 4, the ash subjected to the low thermal decomposition treatment can be continuously discharged while air-sealing, and the airtightness of the thermal decomposition treatment chamber is further improved and finer. Temperature adjustment and internal pressure adjustment can be realized. The driving of the rotary valves 80 and 80a can be adjusted based on the detection results of the various sensors 6a to 6c or the duct temperature sensor 122a.

DESCRIPTION OF SYMBOLS 1 ... Outer tank 1a ... Partition 2 ... Air chamber 3 ... Lower pyrolysis processing chamber 4 ... Ash discharge mechanism 5 ... Feeding pipe 6a ... Temperature sensor 6b ... Weight sensor 6c ... Pressure sensor 7 ... Input port 8 ... Active processing pipe 9 DESCRIPTION OF SYMBOLS ... Inner cylinder 10 ... Upper pyrolysis processing chamber 11 ... Oxygen supply part 12 ... Controller 31 ... Protrusion part 31a ... Air supply hole 31a ... Vent hole 31b ... Inclined surface 33 ... Cover 41 ... Internal discharge part 42, 45 ... Discharge path 43 , 46, 48 ... conveying means 43a, 46a ... shaft part 43b, 46b ... screw member 44 ... external discharge part 45 ... discharge path 46 ... conveying means 47 ... ash extraction part 48b ... blade part 70 ... input device 71, 72 ... opening and closing Lid 77 ... Opening / closing lid 80, 80 a ... Rotary valve 81 ... Loading path 82 ... Cylindrical part 82 a ... Inner peripheral surface 83 ... Casing 84 ... Pocket part 86 ... Rotor 87 ... Rotary shaft 88 Rotating blade 88a ... tip portion 100, 100a ... low-temperature pyrolysis processing system 110, 110a ... heat treatment furnace 111 ... piping 111a ... exhaust control means 112 ... duct 112a ... flue gas temperature sensor 120 ... smoke purifier 121 ... sprinkling means 122 ... circulation Device 123 ... Chimney 129 ... Shower pump 130 ... Kiln drying device 130a ... Moisture content measuring device 131 ... Conveying device 140 ... Storage device 141 ... Conveying device 150 ... Boiler 151 ... Piping 160 ... Tar recovery device 161 ... Piping 162 ... Tar circulation pump

Claims (7)

An inner hollow outer tank having an inlet at the top;
A pyrolysis chamber formed in the outer tank;
In the lower part of the outer tub, an air chamber separated from the pyrolysis chamber by a partition,
Feeding means for supplying magnetized air to the air chamber;
A protrusion that penetrates the partition and protrudes into the pyrolysis chamber;
An air supply hole penetrating through the inside of the projecting portion and communicating the air chamber and the thermal decomposition treatment chamber ;
In the lower part of the thermal decomposition treatment chamber, a discharge path leading to the outside of the outer tub,
A conveying means that extends along the discharge path and conveys the discharge in the discharge path in the extending direction ;
The low-temperature pyrolysis treatment furnace , wherein the protruding portion extends along the discharge path . At the top of the protrusion, the low temperature pyrolysis treatment furnace according to claim 1, characterized in that surface inclined toward the discharge path is formed. The discharge path is formed between the plurality of protrusions arranged at a predetermined interval,
The low-temperature pyrolysis furnace according to claim 2 , wherein an inclined surface that is inclined toward the discharge path is formed at an upper portion of the protruding portion. Monitoring means for monitoring the temperature or internal pressure in the pyrolysis chamber;
An air supply adjusting means which is provided in the feeding means and adjusts an amount of the magnetized air supplied to the air chamber based on a monitoring result by the monitoring means;
An exhaust means communicating from the pyrolysis chamber to the outside of the outer tub and exhausting the air in the pyrolysis chamber;
The low-temperature pyrolysis furnace according to any one of claims 1 to 3 , further comprising an exhaust adjustment unit that adjusts an exhaust amount of the exhaust unit based on a monitoring result of the monitoring unit. A low-temperature pyrolysis treatment system comprising the low-temperature pyrolysis furnace according to any one of claims 1 to 4 ,
A smoke purification device for removing a specific substance from the soot generated by the pyrolysis treatment in the low-temperature pyrolysis furnace;
A low-temperature pyrolysis treatment system comprising: a circulation device that circulates air discharged from the smoke purification device to the low-temperature pyrolysis treatment furnace. A low-temperature pyrolysis treatment system comprising the low-temperature pyrolysis furnace according to any one of claims 1 to 4 ,
A drying device for drying the waste thrown into the low temperature pyrolysis furnace;
A charging device for charging waste from the drying device into the charging port of the low-temperature pyrolysis furnace;
A moisture content measuring device for measuring the moisture content of the waste related to the input into the input port;
A low-temperature pyrolysis processing system, further comprising: a charging control device that controls operations of the drying device and the charging device based on a measurement result by the moisture content measuring device. A low-temperature pyrolysis method using the low-temperature pyrolysis furnace according to any one of claims 1 to 4 ,
A drying step of drying the waste thrown into the low-temperature pyrolysis furnace with a drying device;
A moisture content measuring step for measuring the moisture content of the waste related to the input to the input port;
Based on the measurement result by the moisture content measuring device, a drying device for drying the waste put into the low-temperature pyrolysis treatment furnace , and the waste from the drying device at the inlet of the low-temperature pyrolysis treatment furnace An input control process for controlling the operation of the input device to be input;
A low-temperature pyrolysis processing method, further comprising a charging step of charging a predetermined amount of waste into the charging port of the low-temperature pyrolysis furnace from a drying device according to the control by the charging control step.