JP4652377B2 - Resin modifier manufacturing equipment - Google Patents

Description

  The present invention is a wax-like material used for the purpose of modifying properties of resins, rubber, etc., for inks, paints, pigments, etc. The present invention relates to an apparatus for producing a resin modifier for producing a substance.

Conventionally, as a resin-based modifier manufacturing equipment that produces wax-like substances by melting and thermally decomposing synthetic resin waste consisting of multiple types of synthetic resins or resins containing carbon black and inorganic additives Various things have been proposed. (For example, Patent Documents 1 to 3)
Thereby, synthetic resin waste such as polyethylene resin can be processed as a raw material, and a wax-like substance can be produced for property modification of resin / rubber, etc., and for ink / paint or pigment.

  In the disclosed resin-based modifier manufacturing apparatus, as shown in FIG. 13, a bottomed cylindrical receiving tank T for storing a wax-like substance melt has a tank upper end opening 1b, And it is supported and provided by the support leg 1a.

  A cylindrical combustion basket 2 for heating and melting the raw material A such as synthetic resin waste material is integrally mounted and fixed in the tank upper end opening 1b of the reservoir tank T. A large number of air introduction holes 2 b are formed in the side wall of the combustion basket 2 in the thickness direction of the side wall so as to communicate the inside and the outside of the combustion basket 2.

  A closed box-shaped catalyst tank (deplasticization promoting basket) 4 is attached to the lower end opening 2a of the combustion basket 2 so as to close the lower end opening 2a from below. The catalyst tank 4 has a net-like part 4a whose entire wall is porous, and a metal catalyst for promoting deplasticization of the melt B, for example, a linear shape made of platinum or copper, in the catalyst tank 4. The catalyst 4b is filled so that the melt B can pass through.

  A cylindrical air balancer 5 for adjusting the amount of air supplied to the combustion basket 2 is installed at a predetermined interval with respect to the outer periphery of the combustion basket 2 so as to cover the outer periphery of the combustion basket 2. An air introduction opening 5 a is provided in the lower part of the air balancer 5. The air balancer 5 also functions as a housing for the resin modifier manufacturing apparatus.

  In order to efficiently send the flammable hot gas G generated in the reservoir tank T into the combustion basket 2 between the reservoir tank T and the combustion basket 2, a communication pipe 9. Are installed along the vertical direction with respect to the outer wall of the reservoir tank T. Each communication pipe 9 is provided with a pump 10 for sending the gas from the reservoir tank T to the combustion basket 2 in order to promote the delivery of the hot gas G.

  A pipe-like heater 6 is installed at the inner bottom of the reservoir tank T as a heating means for raising the melting temperature of the wax-like substance C by electric heating. In addition, a temperature sensor 7 such as a bimetal or a thermocouple for detecting the melting temperature of the wax-like substance C is installed inside the reservoir tank T as temperature detection means.

  The heater 6 is provided with control means 8 such as a microcomputer for controlling on / off or proportional control of the heater 6 so as to keep the melt of the wax-like substance C at a predetermined temperature.

  In the lower part of the combustion basket 2, the rooster 3, which is a raw material tray for placing the raw material A and melting and pyrolyzing it, closes the lower end opening 2 a of the combustion basket 2 from above. These are attached to the peripheral wall in the combustion basket 2.

  In order to produce a wax-like substance in the production apparatus described above, first, as the raw material A, a combustible, for example, crosslinked polyethylene alone, or a mixture of a crosslinked polyethylene and a polyolefin such as non-crosslinked or low-crosslinked polyethylene is used. The raw material A is conveyed by the belt conveyor 11 and charged from the raw material charging hopper 12 onto the rooster 3 of the combustion basket 2 by a predetermined amount.

  Next, when the crosslinked polyethylene contained in the raw material A is ignited, the synthetic resin for producing the wax-like substance is thermally decomposed and melted, and the melt B is dropped from the rooster hole portion 3a and passes between the catalysts in the catalyst tank 4. Then, it falls into the reservoir tank T.

  At this time, the catalyst tank 4 and the receiving tank T gradually become deficient due to the disappearance of oxygen due to the burning of the crosslinked polyethylene, and the wax-like substance C thermally decomposed in the deficient state accumulates in the receiving tank T.

  As described above, the wax-like substance C that is melted and in a high heat state is partially vaporized in an oxygen deficient state to generate a flammable hot gas G. The hot gas G is sent into the combustion basket 2 through a communication pipe 9 provided between the reservoir tank T and the combustion basket 2.

  The communication pipe 9 is for efficiently sending the flammable hot gas G generated in the reservoir tank T into the combustion basket 2, and a plurality of them are connected to the outer wall of the reservoir tank T. A pump 10 that is installed along the vertical direction and feeds the gas from the reservoir tank T to the combustion basket 2 is provided in each communication pipe 9 in order to promote the delivery of the hot gas G. The hot gas G is mixed with the air introduced from the air introduction hole 2a of the combustion basket 2 in the combustion place of the raw material A sent into the combustion basket 2 and burned, and the melting of the raw material A is continued. . By configuring the apparatus in this way, it is necessary to supply thermal energy at the time of start-up, but thereafter, thermal energy is supplied independently.

JP 60-190494 A JP-A-10-128747 JP 2003-206373 A

  However, the above-described resin-based modifier manufacturing apparatus is difficult to control because the entire waste material that has been charged burns at once, and b. Many air introduction holes formed in the side wall of the combustion basket 2 Since air was introduced from 2b, there were problems such as difficulty in controlling combustion.

The present invention has been made in view of such a point, a combustion furnace is disposed inside the casing, a part of the synthetic resin waste disposed in the combustion furnace is combusted, and other synthetic resin waste is melted. In an apparatus for producing a resin-based modifier that is thermally decomposed to produce a wax-like substance, the combustion furnace has its upper part and upper side part sealed off, and the lower part and lower part of the side part do not spontaneously drop the synthetic resin waste disposed in the combustion furnace. An oxygen supply nozzle that supplies oxygen or an oxygen-containing gas to the open side and the lower side is disposed, and only a lower end portion of the synthetic resin waste material is locally burned, so that the resin system reforming is performed. It is an agent manufacturing apparatus.

  By burning only the synthetic resin waste material exposed from the lower end of the combustion furnace, only the lower end portion of the synthetic resin waste material can be burned locally and stably, and stable thermal decomposition can be achieved. Thereby, the conventional subject can be solved.

The present invention can adopt the following various embodiments.
The combustion furnace is composed of a combustion cylinder and a rooster disposed below the combustion cylinder.
The rooster is characterized by being arranged at a predetermined interval below the combustion cylinder.
The rooster is characterized in that the cross section is formed in a concave shape and is arranged directly below the combustion cylinder.
The rooster is composed of a wire mesh and / or punching metal.
The synthetic resin waste material is processed into a rod shape.
The synthetic resin waste material is a nugget material.
The rod-shaped synthetic resin waste is arranged so that its central axis is substantially vertical.
A plurality of oxygen supply nozzles for supplying oxygen or oxygen-containing gas from the side face toward the lower side of the combustion furnace are disposed, and the rod-shaped synthetic resin waste disposed in the cylindrical body is gradually burned from the lower end to a resin system It is characterized by producing a modifier.
The oxygen supply nozzle discharges oxygen or oxygen-containing gas into a laminar flow.
A side surface of the combustion furnace or a side surface of the casing is provided with a passage through which water or water vapor passes, and the combustion furnace or the casing is cooled.
An air supply window is formed on a side surface of the housing.
In the present invention, unless otherwise specified, the “side surface” includes the front surface (front surface) and the back surface (back surface) in addition to the right surface and the left surface except the upper surface and the lower surface.

Hereinafter, the present invention will be described in more detail with reference to illustrated embodiments.
FIG. 1 shows a combustion furnace 20 of a manufacturing apparatus showing an embodiment of the present invention. The combustion furnace 20 includes a combustion cylinder 21, a rooster 22 disposed at a lower end of the combustion cylinder 21, and an oxygen supply nozzle 23 that supplies oxygen or an oxygen-containing gas between the combustion cylinder 21 and the rooster 22. The lid 24 is configured to seal the upper portion of the combustion cylinder 21, and the casing 25 is housed therein to isolate the side surface from the external space. Thereby, the upper part and upper part of the side surface of the combustion furnace 20 are blocked, and the lower part and the lower part of the side face are opened to such an extent that the synthetic resin waste disposed in the combustion furnace does not fall naturally.
The rod-shaped synthetic resin waste material is processed to have a cross-sectional area of 1 to 50 cm ² and a length of about 30 cm, for example, by vertically dividing the outer periphery of the synthetic resin insulation coating layer of the power cable into about 2 to 6. The synthetic resin waste material of the nugget material is, for example, a granular material obtained by finely pulverizing the synthetic resin insulating coating layer to a length of about 0.3 to 3 cm on one side or a piece of a piece cut to a length of about 3 to 15 cm. However, the size boundary between the two is not always clear.

The combustion cylinder 21 has a cylindrical shape such as a circular or quadrangular cross section, is made of a heat-resistant material such as iron, and its axis is arranged substantially vertically. The combustion cylinder 21 has a space for storing one to a plurality of rod-shaped raw materials A substantially vertically.
The rooster 22 supports the end portion of the raw material A disposed in the combustion cylinder 21 by projecting from the lower end of the combustion cylinder 21. In this embodiment, the rooster 22 is configured so that the planar metal mesh is a horizontal plane. ing.

The oxygen supply nozzle 23 is for supplying oxygen or an oxygen-containing gas from an oxygen supply source (not shown) to the raw material A protruding from the lower end of the combustion cylinder 21 to promote the combustion of the raw material A. FIG. 3 shows an embodiment of the oxygen supply nozzle 23. One end 231 is formed in a cylindrical shape and the other end 232 is formed in a rectangular shape having a plurality of ejection holes 233, and the cylindrical internal space and Each of the ejection holes 233 communicates with each other to form a laminar flow generating burner 23 'that ejects gas supplied from one end 231 side from the ejection hole 233 into a rectangular cross section .
The oxygen supply nozzle 23 is arranged as an oxygen supply nozzle for supplying oxygen or an oxygen-containing gas between the combustion cylinder 21 and the rooster 22 as shown in FIG. Alternatively, as shown in FIG. 2 , four oxygen supply nozzles 23 are arranged so that the ejection holes 233 of the laminar flow generation burner 23 ′ shown in FIG. 3 face the axis of the rod-shaped raw material A. Incidentally, the number of laminar flow generating burner 23 'is, of course, that may be one or more.

  The lid 24 covers the upper part of the combustion cylinder 21 and seals the space between the upper space and the internal space of the combustion cylinder 21. The lid 24 is disposed detachably from the upper part of the combustion cylinder 21, and the raw material A is placed in the combustion cylinder 21. Is inserted and arranged (including the case where it is added), the lid 24 is removed, and the raw material can be arranged from the upper part of the combustion cylinder 21. The lid 24 functions to prevent the raw material A from burning inside the combustion cylinder 21 during pyrolysis by combustion described below.

  The casing 25 is for holding the above components inside to prevent air from entering and exiting from the surrounding external space. An exhaust device (not shown) is provided on the upper portion of the casing 25, and exhaust gas generated when the raw material A is combusted by oxygen or an oxygen-containing gas supplied by the oxygen supply nozzle 23 is processed. . Further, a reservoir tank (not shown) is disposed at the lower end of the housing 25 via the rooster 22.

In order to operate this combustion apparatus, first, the lid 24 is removed from the upper part of the combustion cylinder 21, and a rod-shaped raw material A is inserted into the combustion cylinder 21 and loaded on the rooster 22 by a raw material transfer robot (not shown). Then, the lid 24 is put on the upper portion of the combustion cylinder 21.
Next, oxygen or oxygen-containing gas is supplied to the lower end of the raw material A by the oxygen supply nozzle 23.

Next, the lower end of the raw material A is ignited by an ignition device such as a gas burner provided in the raw material transfer robot to burn the lower end of the raw material A, and then the ignition device is removed.
As a result, the lower end portion of the raw material A continues to burn with the help of the oxygen supply nozzle 23, and the other part is thermally decomposed by the heat generated by the combustion and falls as a melt B, which is not shown in the figure. Is collected in the tank.
After a while, the length of the raw material A is shortened by the combustion and thermal decomposition. When the raw material A reaches a predetermined length, a sensor (not shown) detects this, and the raw material transfer robot or the like opens the lid 24 and repeats addition of a new raw material. Thereby, thermal decomposition can be continued continuously.

  In the present embodiment, only the lower end of the rod-shaped raw material A protruding from the lower end of the combustion cylinder 21 is locally burned only by the lower end of the raw material A by the supply of oxygen or oxygen-containing gas from the oxygen supply nozzle. By controlling the gas, the combustion temperature can be easily controlled, and stable thermal decomposition can be achieved.

Further, this embodiment, as the oxygen supply nozzle 23 as shown in FIG. 2, four laminar flow generating burner 23 'shown in FIG. 3 is disposed on the outer periphery of the lower end portion of the raw material A, the layer flow generation burner 23 Since oxygen or an oxygen-containing gas is supplied by laminar flow in the axial direction of the raw material A, combustion can be stabilized even if the supply amount is increased. Further, by controlling this supply amount, it is possible to stabilize the combustion state and to control the combustion temperature to be constant.

  In the present embodiment, a cylindrical wire net that is substantially the same as the outer periphery of the combustion cylinder 21 can be disposed between the lower end of the combustion cylinder 21 and the rooster 22. Thereby, even when the length of the rod-shaped raw material A arrange | positioned in the combustion cylinder 21 becomes short by combustion, it can prevent that the raw material A protrudes outside a rooster.

[Other different embodiments]
FIG. 4 shows another embodiment of the present invention. The combustion furnace 20 of the present embodiment is formed so that the rooster 22 is formed in a semispherical shape and protrudes from the lower end of the combustion cylinder 21, and the oxygen supply nozzle 23 is constituted by a pipe-like burner. Even if it is such, only the lower end of the raw material A can be combusted suitably, the raw material A can be thermally decomposed, and a resin modifier can be manufactured.

FIG. 5 shows another embodiment of a different manufacturing apparatus of the present invention.
The manufacturing apparatus includes a combustion furnace 20, a supplementary unit 30, a gas supply unit 40 that generates an inert gas layer V between the combustion furnace 20 and the supplementary unit 30, and the like.
The configuration of the combustion furnace 20 is substantially the same as that of the embodiment shown in FIG.

The catcher 30 is installed at a position below the rooster 31, an eaves 31 that is inclined below the rooster 22, a water supply port 33 that supplies water 32 to the eaves 31 at a position above the inclination of the eaves 31, A basin 34 for filtering the water 32 flowing through the basin 31, a water tank 35 installed at a position below the basin 34 for receiving water leaking from the basin 34, and water from the water tank 35 through the pipe 36 to the water supply port 33. And a pump 37 for supplying water 32.

The gas supply unit 40 is supplied with an inert gas from an inert gas supply device (not shown), and makes a part of the layer between the rooster 22 and the capturing unit 30 an atmosphere of an inert gas.

In addition, by adopting the trapping unit 30 as described above, the melt B generated in the combustion furnace 20 is immediately cooled by dropping into the water 32 on the soot 31, so that the solid resin modifier B ′. Then, the water 32 is conveyed and captured by the eaves 34. Therefore, the resin modifiers captured by the cage 34 can be easily collected by the cage 34, and further cooled immediately by water to become a thin film resin modifier B '. It does not produce large lumps when laminated. As a result, impurities such as soot are hardly mixed in the solid resin modifier B ′, and an excellent resin modifier B ′ that can easily remove impurities by washing with water is obtained. be able to.

The combustion furnace 20 and the capture unit 30 are arranged apart from each other in the vertical direction, and air can enter from below the housing 25 therebetween. For this reason, under the situation where the gas supply unit 40 is not disposed, the resin modifier generated by melting and pyrolysis in the combustion furnace 20 falls while continuing to burn from the combustion furnace 20 to the capturing unit 30. You are in a situation to do. However, the inert gas layer V is formed below the rooster 22 due to the presence of the gas supply unit 40, and the resin-based modifier that falls while burning from the combustion furnace 20 can be immediately extinguished. Thereby, the production | generation yield of a resin-type modifier can be raised.

  Thus, in any of the above-described embodiments, since the inert gas layer V is formed at a position immediately below the combustion furnace 20, the resin system that falls while burning from the combustion furnace 20 by the inert gas layer V. The modifier can be extinguished immediately, the resin modifier that disappears by combustion can be reduced, and the production yield of the resin modifier can be increased.

[Another different embodiment]
FIGS. 6 to 10 show a resin modifier manufacturing apparatus 50 which is further different from the above embodiments, and generates a resin modifier using a so-called nugget material in which synthetic resin waste (raw material) is finely pulverized. 6 is a front view, FIG. 7 is a right side view, FIG. 8 is a rear view, FIG. 9 is a cross-sectional view taken along the line AA ′ of FIG. 8, and FIG. It is explanatory drawing. In these drawings, 51 is a casing of the resin-based modifier manufacturing apparatus 50, 60 is a combustion furnace, and 70 is a reservoir tank.

  The combustion furnace 60 includes a combustion cylinder 61 and a rooster 65. As shown in FIG. 11, the combustion cylinder 61 has a rectangular shape having a short side and a long side in the cross-sectional shape, and the upper part and the upper part of the side face restrict the gas flow in and out. In addition, the lower side and the lower side surface of the combustion cylinder 61 are opened by a rooster 65 provided with a gap so that the synthetic resin waste disposed in the combustion cylinder 61 does not fall naturally. And the said short side is comprised by about 15-40cm, and it is comprised so that oxygen can be supplied to the downward direction of the open combustion furnace 60, and a part of synthetic resin waste material can be burned.

The distance between the bottom surface of the rooster 65 and the lower end of the combustion cylinder 61, that is, the height of the rooster 65 is appropriately adjusted according to the ease of combustion of the synthetic resin waste material. That is, when the synthetic resin waste material is easily combusted, the height can be shortened, and when it is difficult to combust, the height can be lengthened to adjust the combustion state.
The rooster 65 is composed of a metal mesh, a circular or long punch hole (punching metal), or the like.

  On the front side and the back side below the combustion furnace 60 (the front side and the back side below the combustion cylinder 61), as shown in FIG. The air (oxygen) can be forcibly supplied into the combustion furnace 60 when the synthetic resin waste material is burned. The air supply nozzle 67 is configured in the same manner as the oxygen supply nozzle 23, and air or the like is supplied by an air pump (not shown).

  As shown in FIG. 9, a raw material hopper portion 52 is provided on the upper part of the back surface of the casing 51. The raw material hopper 52 is composed of a hopper body 52a and a lid 52c that rotates around the rotation shaft 52b on the hopper body 52a. The hopper body 52a is rotated by operating a handle 52d (see FIG. 7). The housing 51 is configured to be rotatable about the shaft 52b. Further, the side surface of the hopper main body 52 a is configured to form a part of the casing 51. Further, a door 62 is provided on the rear surface of the combustion cylinder 61, and is stored in the hopper body 52a when the hopper body 52a is rotated as indicated by the dotted line in FIG. 9 by the operation of the handle 52d. The synthetic resin waste material can be supplied into the combustion cylinder 61 from the open door 62.

A pointer 53a is disposed at the front of the casing 51, and a raw material sensor 53b is disposed in the combustion cylinder 61, which are connected to each other by a flexible wire 53c made of stainless steel wire, metal chain, or the like. An indicator 53 is configured. The raw material sensor 53b is mounted on the synthetic resin waste disposed in the combustion cylinder 61 and descends in accordance with the lowering of the upper portion of the synthetic resin waste that has been reduced by the combustion. In this case, the pointer 53a is raised as the synthetic resin waste material decreases. Therefore, it is possible to know how much synthetic resin waste material is left in the combustion cylinder 61 by reading the pointer 53a.
Further, an observation window 54 through which the combustion state of the combustion furnace 60 can be observed and an air supply window 55 with adjustable air amount are formed on the front and rear surfaces of the casing 51, respectively.

  A reservoir tank chamber 56 for placing a reservoir tank 70 is provided below the casing 51, and the reservoir 57 is opened by opening a door 57 provided on a side surface of the casing 51. The tank 70 can be taken in and out of the housing 51. In the present embodiment, a case is shown in which eight reservoir tanks 70 are arranged in a line along the long side direction.

Between the rooster 65 and the reservoir tank chamber 56, there is a modifier assembly hopper 71 for collecting the resin-based modifiers generated by the combustion of the synthetic resin waste material and guiding them to the respective reservoir tanks 70. The number of tanks 70 for receiving is arranged. The modifying agent collecting hopper 71 may be one in the case where one receiving tank 70 is arranged in the entire receiving tank chamber 56, and is shown in FIG. It does not have to exist.
The receiving tank chamber 56 and the modifier collecting hopper 71 are supplied with an inert gas such as nitrogen so that the generated waxy substance does not undergo secondary combustion.

A passage 64 through which water or water vapor passes is provided on the side surface of the combustion cylinder 61 and the side surface of the casing 51, and water or water vapor is supplied from a cooling medium injection hole provided on the side surface of the casing 51. The body 51 is appropriately cooled to protect the combustion cylinder 61 and the casing 51, and at the same time, it is possible to control so that the synthetic resin waste is not excessively decomposed.
That is, when the side surface of the combustion cylinder 61 or the side surface of the casing 51 is not cooled, the temperature of the upper portion of the combustion cylinder 61 becomes 350 ° C. or higher, and the operation of the resin-based modifier manufacturing apparatus has to be stopped. When cooled, the temperature was maintained at about 200 ° C., and stable operation was possible. Moreover, the thermal energy of the water vapor | steam and warm water by heat recovery obtained by this is utilized as a heat source of a warm water pool or a bath.

  Although not shown in the drawing, an exhaust gas treatment device for treating exhaust gas burned in the combustion furnace 60 is attached to the upper portion of the casing 51. This exhaust gas treatment apparatus is composed of, for example, a combustion chamber in which exhaust gas is forcibly recombusted with a gas burner, a scrubber for removing dust and dust from the forcibly combusted gas, and the like. As a result, the exhaust gas is treated so as not to cause air pollution and is discharged into the atmosphere.

  A handle 58 disposed on the right front surface of the resin-based modifier manufacturing apparatus 50 is for raising and lowering the air supply nozzle 67, the modifier collecting hopper 71 and the like via the reduction gear box 58a. By moving the nozzle 67 and the like away from the rooster 65, the rooster 65 and the like can be easily cleaned.

[Operation of resin-based modifier manufacturing apparatus in still another different embodiment]
Hereinafter, the operation of each part will be described in more detail according to the operation order of the resin-based modifier manufacturing apparatus 50 of the present embodiment.

First, the lid 52c is rotated around the rotation shaft 52b, the upper portion of the hopper body 52a is opened, and a nugget-like synthetic resin waste material is put into the hopper body 52a by a raw material transfer device (not shown). Thereafter, the lid 52c is closed.
Next, the pointer 53a is lowered to the lowest position and fixed. Thereby, the raw material sensor 53b in the combustion cylinder 61 is raised and fixed to the highest position.
In this state, the door 62 disposed on the back surface of the combustion cylinder 61 is opened, and the handle 52d is operated to rotate the hopper body 52a as indicated by a broken line. As a result, the synthetic resin waste disposed in the hopper body 52a is introduced into the combustion cylinder 61 from the opened door 62. A part of the synthetic resin waste introduced into the combustion cylinder 61 is exposed from below the combustion cylinder 61 and disposed on the rooster 65, and the other synthetic resin waste is disposed in the combustion cylinder 61.

Next, the handle 52d is reversely operated to return the hopper body 52a to its original position. Further, the door of the combustion cylinder 61 is closed. As a result, the outer periphery of the combustion cylinder 61 is sealed so as to restrict the entry and exit of gas between the inside and the outside.
In this state, by releasing the fixation of the fixed raw material remaining indicator 53 at the lowest position, the raw material sensor 53b in the combustion cylinder 61 is mounted on the upper part of the synthetic resin waste material. As a result, the pointer 53a indicates a value corresponding to the amount of synthetic resin waste present in the combustion cylinder 61.

Next, air is discharged from the air supply nozzle 67 to the synthetic resin waste material exposed from below the combustion cylinder 61, and the synthetic resin waste material mounted on the rooster 65 and exposed from below the combustion cylinder 61 is ignited. Although not shown, the ignition is performed by a gas burner provided with an ignition electrode disposed above the air supply nozzle 67 toward the rooster 65.
In a state where the combustion has progressed to some extent, the operation of the gas burner is stopped, and the synthetic resin waste material is burned autonomously. The amount of air supplied from the air supply nozzle 67 where combustion is appropriately performed is grasped in advance, and this appropriate amount is supplied. At this time, the air supply window 55 formed on the front surface of the casing 51 is appropriately opened and closed.

  In this way, a part of the synthetic resin waste material burns appropriately and appropriately. Thereby, the other part of the synthetic resin waste material is heated and melted and thermally decomposed, and the wax-like substance is produced as a liquid. The produced wax-like substance falls below the rooster 65 due to gravity, and thereafter, the wax-like substance is collected by the respective modifier collecting hoppers 71 disposed below the wax-like substance and led to the respective receiving tanks 70. , Collected in the reservoir tank 70. The tank chamber 56 and the modifier collecting hopper 71 are supplied with the inert gas such as nitrogen as described above, so that the generated wax-like substance does not undergo secondary combustion, and the tank for receiving is generated. Collected in 70.

  When the synthetic resin waste material is burned, the combustion cylinder 61 is sealed so that the upper and side surfaces of the combustion cylinder 61 are blocked from entering and exiting the inside and outside of the combustion cylinder 61. There is nothing. Thereby, combustion does not advance excessively and combustion is performed stably.

  When the combustion proceeds as described above, the synthetic resin waste material stored in the combustion cylinder 61 gradually decreases, and the position of the upper portion of the synthetic resin waste material is lowered. As a result, the raw material sensor 53b mounted on the upper part of the synthetic resin waste is lowered and the pointer 53a is raised. By raising the pointer 53a, it is possible to know how much synthetic resin waste material remains in the combustion cylinder 61.

  When the synthetic resin waste material in the combustion cylinder 61 is reduced to some extent, the synthetic resin waste material is added to the combustion cylinder 61. As described above, the synthetic resin waste material is added by inserting the synthetic resin waste material into the hopper body 52a, fixing the pointer 53a to the lowest position, opening the door 62 of the combustion cylinder 61, rotating the hopper body 52a, and the like. Do it.

By repeating the above, it is possible to continuously produce a wax-like substance.
To remove the wax-like substance generated in the reservoir tank 70, when a predetermined time has elapsed, the door 57 provided on the side surface of the casing 51 is opened, and the reservoir tank 70 is removed from one door 57. This is done by taking out and inserting the empty reservoir tank 70 from the other door 57.

  Two types of the present resin-based modifier manufacturing apparatus 50 (hereinafter simply referred to as a horizontal type) having a size of the combustion furnace 60 of 35 × 20 cm and 140 × 20 cm, and a cross section having a diameter of 30 cm and 60 cm having substantially the same area as this Tables 1 and 2 show the results of measuring the combustion state and the combustion rate using two types of circular resin modifier manufacturing apparatuses (hereinafter simply referred to as “circular”). In addition, the space | interval of the bottom face of the rooster 65 at this time and the lower end of the combustion cylinder 61 was 15 cm. As the synthetic resin waste, a piece of polyethylene resin obtained by peeling off the insulation coating layer of a crosslinked polyethylene insulated wire (OC wire) and having a side length of about 10 cm was used.

  As a result, there was not much difference between the small-sized ones, but the horizontal ones obtained better results in terms of the combustion state and the burning speed. For this reason, it was confirmed that the horizontal type resin modifier manufacturing apparatus is more suitable for burning in a larger area. Thereby, the horizontal type can be easily scaled up by increasing the length of the long side.

  In the above embodiment, the case where the wax-like substance is taken out by removing the reservoir tank 70 has been described. However, the reservoir tank 70 is provided as a single unit, and the generated wax take-out pump is provided in the reservoir tank 70. It is also possible to take out the wax-like substance to the outside of the casing 51 through a pipe connected to the pump by installing this and operating the pump.

  Thus, the resin-based modifier manufacturing apparatus 50 is constituted by the rectangular combustion furnace 61 having a short side and a long side in cross section, and combustion is performed only below the combustion furnace. Even this synthetic resin waste can be efficiently burned.

The principal part explanatory drawing which shows the combustion furnace of one Embodiment of this invention. The principal part perspective view in FIG. The principal part expansion perspective view in FIG. Explanatory drawing which shows the principal part which shows other embodiment of this invention. The principal part cross-section explanatory drawing which shows other embodiment of this invention. The front view which shows other embodiment of this invention. The right view of FIG. The rear view of FIG. Sectional drawing in the AA 'line of FIG. FIG. 7 is a cross-sectional explanatory view of a main part seen through the inside of FIG. 6. FIG. The principal part cross-sectional explanatory drawing which saw through the inside of further another embodiment of this invention. The principal part cross-section explanatory drawing of the combustion pyrolysis furnace which shows an example of the past.

Explanation of symbols

20 Combustion furnace 21 Combustion cylinder (cylinder)
22 Rooster (wire mesh)
23 Oxygen supply nozzle 23 ′ Laminar flow generation burner 24 Lid 25 Case 30 capture part 31 樋 32 Water 33 Water supply port 34 籠 35 Water tank 36 Pipe 37 Pump

Claims (11)

A combustion furnace is disposed inside the housing, a part of the synthetic resin waste disposed in the combustion furnace is combusted, and other synthetic resin waste is melted and thermally decomposed to produce a wax-like substance. In the material production apparatus, the upper part and upper part of the side of the combustion furnace are closed, and the lower part and the lower part of the side face are opened to the extent that the synthetic resin waste disposed in the combustion furnace does not fall naturally. An apparatus for producing a resin-based modifier, wherein an oxygen supply nozzle for supplying oxygen or an oxygen-containing gas is disposed, and only the lower end portion of the synthetic resin waste material is locally burned.   The apparatus for producing a resin-based modifier according to claim 1, wherein the combustion furnace includes a combustion cylinder and a rooster disposed below the combustion cylinder.   3. The apparatus for producing a resin-based modifier according to claim 2, wherein the rooster is disposed below the combustion cylinder at a predetermined interval.   3. The apparatus for producing a resin-based modifier according to claim 2, wherein the rooster has a concave cross section and is disposed directly below the combustion cylinder.   The apparatus for producing a resin-based modifier according to any one of claims 2 to 4, wherein the rooster is made of a wire mesh and / or a punching metal.   The apparatus for producing a resin modifier according to any one of claims 1 to 5, wherein the synthetic resin waste material is processed into a rod shape.   The apparatus for producing a resin modifier according to any one of claims 1 to 5, wherein the synthetic resin waste material is a nugget material.   The apparatus for producing a resin-based modifier according to claim 6, wherein the rod-shaped synthetic resin waste material is disposed so that a central axis thereof is substantially vertical. The apparatus for producing a resin-based modifier according to claim 1 , wherein the oxygen supply nozzle discharges oxygen or an oxygen-containing gas into a laminar flow. The apparatus for producing a resin-based modifier according to claim 1, wherein a passage through which water or water vapor passes is provided on a side surface of the combustion furnace or a side surface of the casing, and the combustion furnace or the casing is cooled. The apparatus for producing a resin modifier according to claim 1, wherein an air supply window is formed on a side surface of the housing.

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