JP3027827B2 - Incinerator using ion flame generator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ion flame generator for ionizing a combustion flame (hydrocarbon flame) of kerosene or the like to generate an ion flame higher in temperature than a normal combustion flame (neutral flame). Incinerators that burn and burn general combustible waste (including garbage, plastics, waste liquids, waste oil, etc.), and further incinerate ash and dust after primary incineration. It is suitable for use as an incineration ash melting type incinerator for secondary incineration and melting. In this case, the melt is solidified to form slag, and the slag can be used as an aggregate for concrete.

[0002]

2. Description of the Related Art 1000 objects to be treated such as trash and incinerated ash
There are various types of incinerators that melt and process at a high temperature of not less than ° C, and the following are the conventional types. 1) Surface method 2) Swirling flow method 3) Coke bed method 4) Arc method 5) Plasma method 6) Electric resistance method 7) Induction heating method

In the surface method 1), an object to be treated put into an incinerator is melted by the combustion flame of a kerosene or heavy oil burner or its heat. In this method, there are a rotary type that melts the object to be processed into the furnace while rotating the furnace, a fixed type that melts the object to be processed into the furnace while extruding it with a pusher, etc. There are an internal melting type in which the combustible gas blown into the inside melts, and a reflection type in which the combustion flame of the burner and its heat are concentrated by a reflector and the object to be treated put into a furnace is effectively melted.

The swirling flow method 2) is based on the principle of centrifugal separation of a cyclone. Fuel and air necessary for combustion and finely pulverized objects to be treated are injected into a cylindrical incinerator. A vortex is generated in the incinerator, and the object to be dropped falling while rotating on the inner wall of the furnace is melted. This is often used to treat dried sludge. In this method, there are a vertical type furnace, a horizontal type furnace, an oblique type furnace, and a composite type thereof in addition to a vertical type furnace.

[0005] In the coke bed method of 3), an object to be treated, coke, limestone and crushed stone (basicity adjusting agent) are charged into a cylindrical incinerator, and the coke bed is heated by hot air blown from the bottom side of the incinerator. The temperature is raised, and the heat is used to melt the object to be treated.

In the arc method 4), an arc discharge occurs between an electrode provided in the incinerator and a base metal, and the object to be treated put into the incinerator is melted by the heat of the arc discharge. .

In the plasma method 5), a high-temperature plasma gas is generated by a plasma torch provided in the incinerator, and the object to be treated introduced into the incinerator is melted by the high-temperature plasma gas. The plasma torch turns gas into plasma by electric discharge.

[0008] The electric resistance method of 6) is a method in which an electrode rod is inserted into a molten portion of an object to be treated put into an incinerator, heated by electric resistance heat of the molten material, and further melts the object to be introduced. It is.

In the induction heating method of 7), a magnetic flux from an induction coil provided on the outer periphery of the furnace acts on a mixture of an object to be treated and a dielectric substance such as iron chips, which are put into an incinerator, and a vortex is formed on the dielectric substance. An electric current is generated, the dielectric is heated by the Joule heat, and the object to be processed is melted.

[0010] In any of the above, the melting temperature is 10
Although it is a temperature of about 00 to 1500 ° C., it is possible to generate a higher temperature. A fuel such as kerosene or heavy oil is burned by a burner, and the combustion flame is turned into plasma (ionization).
Then, the object to be treated is melted by the ion flame. 12 and 13 show a conventional example of an incinerator using this ion flame.

In this incinerator, a neutral flame chamber D and a quasi-plasma (quasi-ion) flame chamber are vertically inserted through a grate B, C inside an incinerator body A made of a castable refractory into a cylindrical shape. E, a plasma (ion) flame chamber F is formed, three kerosene burners G are attached to the furnace wall of the ion flame chamber F, and a flame contact ionizing material H is provided at the tip of the kerosene burner G in the ion flame chamber F. An electromagnetic coil I is provided on the wall of the furnace where the flame of the kerosene burner G strikes. In this incinerator, when a pulse current or the like is applied to the electromagnetic coil I to generate a high-frequency magnetic field (for example, a high-frequency magnetic field having a magnetic flux density of 10,000 or more and a frequency of about 20 to 50 MHz), the flame contact ionizing material H is activated by the high-frequency magnetic field. As a result, the flame contact ionizing material H is provided with an energy applying action, and the combustion flame (hydrocarbon flame) of the kerosene burner G touching the flame contact ionizing material H is ionized (plasmaized) to become an ion flame. . Although this ion flame has a large number of ions in the ion flame chamber F, the quasi-ion chamber E
In the above, the number of ions is reduced to form a quasi-ion flame, and in the neutral flame chamber D, it becomes a normal neutral flame. In this incinerator, when an object to be treated such as garbage is introduced into the garbage inlet J,
It is dried and burned in the neutral flame chamber D, and gradually melts while falling through the quasi-ion flame chamber E and the ion flame chamber F, and is discharged K
Is discharged as a molten material.

By the way, an ion flame in which valence particles (carbon ions, hydrogen ions, oxygen ions, etc.) are present also exists in a hydrocarbon flame by ordinary combustion, but the number of generated ions is small. In the absence of a magnetic field, the ions immediately recombine to produce H2O, CO2, etc.
It becomes a state of neutral flame. At the stage of transition from an ion flame to a neutral flame, a recombination reaction having an endothermic action occurs and heat is deprived from the flame, so that the neutral flame has a reduced energy amount as compared with the ion flame. For example, kerosene is said to have an energy of about 8000K calories per liter, and the calories released by the atomic dissociation reaction are said to exceed 10,000K calories, but in normal combustion, the ion flame state is very short-lived. However, the state immediately shifted to a neutral flame state, so that a high temperature could not be generated.

However, in the incinerator of FIGS. 12 and 13, an ion flame can be created by generating a large number of ions with the aid of the flame contact ionizing material H. The generated ions are recombined by the high frequency magnetic field of the electromagnetic coil I. Therefore, the state of the ion flame can be maintained for a relatively long time, and the furnace temperature can be increased to 3000 ° C. or more.

The flame contact ionizing material H used in the incinerator is manufactured by crystallizing a composition comprising a photoactive substance and a magnetic substance in an oxidizing atmosphere. The photoactive substance is a simple substance such as selenium, cadmium, titanium, lithium, barium, or thallium, or a compound such as an oxide, sulfide, or halide thereof. As the magnetic substance, a ferromagnetic substance (iron, nickel, Cobalt and its compounds, etc.) and paramagnetic substances (manganese, aluminum,
Tin and its compounds), diamagnetic substances (bismuth, phosphorus,
Copper, calcium, and compounds thereof).

[0015]

The incinerators shown in FIGS. 12 and 13 can generate a much higher temperature than incinerators that normally burn fuel such as kerosene and heavy oil, and can process various objects in a short time. However, there are the following problems. 1. When the object to be treated put into the inlet J is incinerated in the neutral flame chamber D, the incinerated ash may be scattered out of the inlet J and the smoke outlet L, so that a filter for preventing scattering in the incinerator. Need to be provided. 2. Since the object to be treated is incinerated and melted stepwise through the neutral flame chamber D, the quasi-ion flame chamber E, and the ion flame chamber F, it takes time to process. 3. Although it is desired to generate a higher temperature in order to improve the processing capacity, it is difficult to generate a high temperature exceeding 4000 degrees only by contacting the hydrocarbon flame with the flame contact ionizing material H.

An object of the present invention is to prevent ash and the like from being scattered,
It is still another object of the present invention to provide an incinerator using an ion flame generator having a high processing capability at an extremely high temperature.

[0017]

According to the present invention, there is provided an incinerator using the ion flame generator according to the first aspect of the present invention, as shown in FIGS. In an incinerator provided with an ion flame generator 2 that generates an ion flame by generating plasma, a heat-resistant pipe 3 to which the ion flame of the ion flame generator 2 is blown into the incinerator main body 1 is piped. The object to be treated such as dust is put into the heat-resistant pipe 3 and incinerated and melted.

As shown in FIGS. 1 to 4 and FIGS. 10 and 11, the incinerator using the ion flame generator according to the second aspect of the present invention applies a magnetic field to the ion flame generated from the ion flame generator 2. The ion breeder 4 is provided so that the number of ions in the flame is increased by applying an electric field.

In the incinerator using the ion flame generator according to the third aspect of the present invention, as shown in FIGS. 1, 2, 10 and 11, the ion flame generator 2 is arranged radially around the incinerator main body 1. Two or more heat-resistant pipes 3 are disposed in the incinerator body 1
Are arranged radially at positions corresponding to the respective ion flame generators 2 in the inside.

The incinerator using the ion flame generator according to claim 4 of the present invention is provided with a strong magnetic field / electric field generator 100 for generating a magnetic field / electric field as shown in FIG.

In the incinerator using the ion flame generator according to the fifth aspect of the present invention, as shown in FIG. 2, a melt reservoir 18 for storing a melt melted by a heat-resistant pipe 3 in an incinerator main body 1. Is provided.

In the incinerator using the ion flame generator according to claim 6 of the present invention, as shown in FIGS. 3, 7 and 9, the ion flame generator 2 is provided with liquid fuel such as kerosene or the like such as iron or aluminum. A metal fuel feeder 73 is provided which can supply a mixed metal powder mixed with metal powder.

As shown in FIGS. 3 and 9, the incinerator using the ion flame generator according to claim 7 of the present invention is a water fuel supply device 72 capable of supplying water to the ion flame generator 2.
Is provided.

In the incinerator using the ion flame generator according to claim 8 of the present invention, as shown in FIGS. 1, 2, 8, 10 and 11, the heat-resistant pipe 3 is a graphite pipe manufactured in a cylindrical shape. An outer peripheral surface of the pipe 25 is coated with an oxide or the like to keep the graphite pipe 25 at a negative potential.

[0025]

Embodiment 1 An embodiment of an incinerator using an ion flame generator of the present invention will be described with reference to FIGS. In the incinerator shown in FIG. 1, a substantially cylindrical incinerator main body 1 is installed on a gantry 10, and around the incinerator main body 1,
The ion flame generator 2 with the ion breeder 4
Machines are arranged radially. A smoke stack 11 is provided at the upper center of the incinerator main body 1, and four heat-resistant pipes 3 are provided so as to surround the smoke stack 11. The outside of the incinerator main body 1 is covered with an iron plate having anti-magnetism, so that an iron casing (outer casing) 13 is provided.

The incinerator body 1 is made of a castable refractory which can withstand a high temperature of about 4500 ° C., that is, a refractory obtained by mixing a refractory aggregate and a hydraulic agent such as alumina cement or phosphoric acid. An inner casing 14 is provided by covering the outer surface of the bull refractory with an iron plate. The incinerator body 1 can be made of graphite or other refractories.

The heat resistant pipe 3 is, as shown in FIG.
This is a graphite pipe 25 which is formed by compressing a graphite material into a pipe shape and firing it, and has an oxide film 26 formed on the outer surface thereof. The graphite pipe 25 is electrically conductive.
The negative pole of the power supply 27 is connected to the inner casing 14 made of iron of the incinerator main body 1 and the positive pole is connected to the negative pole. Power supply 2
7 is a voltage of 15,000 to 30,000 V and a current of 20 to 50
A DC voltage of mA is generated, and the DC voltage can set the graphite pipe 25 to a negative potential. Graphite itself is a highly heat-resistant material having a melting point of about 4500 degrees, but is oxidized at about 1500 degrees in an air (oxygen) atmosphere and immediately deteriorates. However, by forming the oxide film 26 on the graphite pipe 25 and setting the graphite pipe 25 to a negative potential, the binding of oxygen ions (anions) that promote oxidation is prevented, and the temperature is maintained at a high temperature of about 4000 degrees for a long time. Available for use.

The heat-resistant pipe 3 is composed of two upper and lower graphite grate plates 1 provided inside the incinerator main body 1 as shown in FIG.
5 and 16, each heat-resistant pipe 3 is arranged directly in front of the ion flame generator 2.
The upper end of the heat-resistant pipe 3 is connected to a refuse charging hopper 17 at the upper part of the incinerator main body 1, and the lower end of the heat-resistant pipe 3 is passed through a melt reservoir 18 at the bottom of the incinerator main body 1. The object to be treated introduced into the trash introduction hopper 17 falls down in the heat-resistant pipe 3 and is stored as a molten material in the melting tank 18 of the incinerator main body 1.

The upper one of the grate plates 15 and 16 is disposed above the mounting position of the ion flame generator 2, and the lower one is disposed below the mounting position of the ion flame generator 2, The injection flame (positive ion flame) of the ion flame generator 2 is set to be contained in the space between the first and second grate plates 15 and 16. However, this cation flame is confined in a donut shape inside the incinerator main body 1 by a high-frequency magnetic field described later formed in the furnace, and does not touch the grate plates 15 and 16 and the furnace wall.

The exhaust pipe 11 is made of the same castable refractory as the incinerator main body 1 and has a cylindrical shape, and can exhaust smoke and heat generated in the furnace to the outside. This exhaust stack 11
Are connected to the exhaust gas purification device group shown in FIG. At the center of the bottom of the incinerator main body 1, a cylindrical melting and discharging tube 12 is provided and, like the exhaust tube 11, is made of castable refractory. An opening / closing shutter 19 is provided at the end of the melting take-out cylinder 12. The opening / closing shutter 19 is driven to open and close by a driving device (not shown). When the melting reservoir 18 is filled with the melt, the shutter 19 is automatically opened to melt the melt. Drain and close automatically when the melt is drained and emptied.

A water-cooling jacket 20 is attached to the outer wall of the incinerator body 1 at the portion of the melt reservoir 18, and a high-frequency coil 21 is attached to the outer periphery thereof. The high-frequency magnetic field generated from the high-frequency coil 21 heats the melt in the melt reservoir 18, prevents solidification of the melt, and enables smooth discharge from the melt discharge tube 12.

As shown in FIG. 1, the outer casing 13 which covers the outside of the incinerator main body 1 is provided with four hot-air recovery pipes 22, and each of the hot-air recovery pipes 22 is connected to the corresponding ion flame generator 2. I have. The hot-air recovery pipe 22 collects high-temperature air heated by radiant heat from the incinerator main body 1 and sends high-temperature air to the ion flame generator 2 to reuse heat, thereby improving energy efficiency of the incinerator. Things.

As shown in FIG. 3, the ion flame generator 2 of FIG. 1 includes a turbo fan 30, a motor 31, an axial compressor (turbine) 32 driven by the motor 31,
An ion flame generating section 40 is provided.
Is provided. The fuel device 70 shown in FIG. 9 is connected to the ion flame generator 40 of the ion flame generator 2 through a fuel pipe and an air pipe (not shown).
And the air tank 74 are connected.

The turbo fan 30 is connected to the hot air recovery pipe 2
The hot air is taken in from 2 and sent out to the turbine 32. As shown in FIG. 3, the turbo fan 30 includes an air adjustment valve (damper) 33, and adjusts an opening degree of the damper 33 to adjust an air intake amount, thereby forming a turbine 32.
Can be adjusted. The turbine 32 has a rotating blade 35, a compression blade 36, and a distribution blade 37 attached to a shaft 34 which is driven to rotate by a motor 31. When these blades 35, 36 are rotated inside a fixed stationary blade 38, a turbo The air sent from the fan 30 is compressed and injected toward the ion flame generating section 40. The air injected here is agitated by the distribution blades 37, equalized in pressure, and sent out to the five fuel atomizers 43 of the ion flame generator 40.

As shown in FIG. 3, the ion flame generating section 40 has a cylindrical main body 41 formed of a ferromagnetic metal (iron, nickel,
Cobalt or the like), and five fuel atomizers 43 shown in FIG. 6 are arranged and mounted in the same cylindrical main body 41 as shown in FIG. 5, and a substantially cylindrical fuel atomizer 43 is provided in front of the fuel atomizer 43. A flame contact ionizing material 44 is attached. An electromagnetic coil 45 containing an iron core is attached to the outer periphery of the cylindrical main body 41. The fuel atomizer 43 is fixed in the tubular main body 41 by the metal plate 42 shown in FIG.

As shown in FIG. 6, the fuel atomizer 43 has a cylindrical main body 50 made of a non-magnetic metal (brass, stainless steel, etc.), and injects high-pressure air of about 15 k pressure into the rear end. A non-magnetic metal air injection nozzle (nozzle inner diameter 1-2 mφ) 51 and fuel (kerosene, metal powder mixed oil,
A fuel drop nozzle 52 made of a non-magnetic metal for dropping water is inserted and fixed. The cylindrical main body 5 of this fuel atomizer 43
0, the inner surface of the distal end portion 53 is tapered so as to expand outward as shown in FIG.
The taper length d is 10 to 15 mm. The outer peripheral surface of the rear end portion of the cylindrical main body 50 of the fuel atomizer 43 is provided with about 15 to 20 slits 54 having a width of 1.5 to 2 mm at intervals in the circumferential direction. Is 45 degrees. The fuel dripping nozzle 52
Are inserted from one of these slits 54. The inner diameter c of the cylindrical main body 50 of the fuel atomizer 43 is 35 to
45 mm, and the total length (a + b + d) is 170 to 215 mm. By the way, a is 160 to 200 mm, b is 50 to 6
0 mm. The fuel drop nozzle 52 is provided with a stirrer 5 for stirring fuel supplied from the fuel device 70.
5 and the stirrer 55 includes a spiral rotor 56
And the rotating blade 56 is rotated by the motor 57.

In the fuel atomizer 43, the fuel dropped from the fuel drop nozzle 52 is supplied to the turbine 33 behind it.
The air is blown into fine particles of 0.01 μm or less by high-speed air blown from the air and high-pressure air injected from the air injection nozzle 51, and is sprayed from the tip 53. In this fuel atomizer 43, the fuel once atomized is smoothly ejected without being reliquefied by the taper of the tip 53,
High fogging efficiency is achieved.

The flame contact ionizing material 44 is manufactured by crystallizing a composition comprising a photoactive substance and a magnetic substance in an oxidizing atmosphere. The photoactive substance,
It is a simple substance such as selenium, cadmium, titanium, lithium, barium, or thallium, or a compound such as an oxide, sulfide, or halide thereof, and the magnetic substance is a ferromagnetic substance (iron, nickel, cobalt, or a compound thereof) or the like. Paramagnetic substances (manganese, aluminum, tin and their compounds), diamagnetic substances (bismuth, phosphorus, copper, calcium, and their compounds)
It is.

The electromagnetic coil 45 is, as shown in FIG.
A copper wire coil 46 is attached to an iron core 47, and a power supply device (not shown) is connected to the copper wire coil 46. The electromagnetic coil 45 generates a strong high-frequency magnetic field inside the coil when a pulse current is applied from a power supply device, and the ferromagnetic metal cylindrical main body 41 of the ion flame generator 40.
Magnetize strongly. The high-frequency magnetic field has, for example, a magnetic flux density of 10,000 or more and a frequency of about 20 to 50 MHz. The cylindrical main body 41 magnetized by the electromagnetic coil 45 generates a high-frequency magnetic field inside thereof, activates the flame contact ionizing material 44, and converts the hydrocarbon flame touching the flame contact ionizing material 44 into cations (carbon ions, hydrogen ions, An ion flame having many iron ions) and anions (oxygen ions). In addition, in the flame contact ionizing material 44 activated by the high frequency magnetic field, ignition is induced only by touching the atomized fuel,
An ignition electrode 48 is provided on the flame contact ionizing material 44 to increase the reliability of flame ignition.

As shown in FIG. 4, the ion breeder 4 of FIG. 1 has a cylindrical main body 60 formed of a ring 61 of a non-magnetic metal (brass, stainless steel, etc.) and a ring 61 of a ferromagnetic metal (iron, nickel, cobalt, etc.). The ferromagnetic metal rings 62 are alternately connected to form a cylindrical shape, and an electromagnetic coil 63 is attached to the outer periphery of each ferromagnetic metal ring 62. The ferromagnetic metal ring 62 has three stages, and the electromagnetic coil 63 also has three stages. In each electromagnetic coil 63, a formal copper wire 65 is wound around the outer periphery of the ferromagnetic metal ring 62 with an insulating paper 64 interposed therebetween, and a cooling copper pipe 66 is wound around the outer periphery with the insulating paper 64 interposed therebetween. It is manufactured by winding the metal cover 67 therebetween. The individual electromagnetic coils 63 are firmly fixed to the flange 68 on the outer periphery of the tubular main body 60 so as not to cause a displacement or the like due to the generated magnetic force or the vibration of the burner 2.

The formal copper wire 65 of each electromagnetic coil 63
Is connected to a power supply device (not shown) so that a large pulse current can be applied from the power supply device. The electromagnetic coil 63 generates a strong high-frequency magnetic field inside the coil when a large pulse current flows, and strongly magnetizes the inner ferromagnetic metal ring 62 with the high-frequency magnetic field. A strong high-frequency magnetic field is formed inside it.
The high-frequency magnetic field inside the ferromagnetic metal ring 62 oscillates ions in the ion flame generated by the ion flame generator 40, accelerates cations toward the flame injection port, and moves anions toward the ion flame generator. Accelerates and increases the number of cations and anions while elastically impacting cations and anions with other particles (ionized and unionized particles). Also, the ferromagnetic metal rings 62 alternately arranged
The non-magnetic metal ring 61 compresses the ion flame by applying a stepwise magnetic throttle (pinch effect), and injects the compressed cation flame into the incinerator main body 1. Note that the anion flame is injected toward the ion flame generator 40.

The cooling copper pipe 6 for each of the electromagnetic coils 63
Numeral 6 is connected to a cooling device (not shown) so that the electromagnetic coil 63 can be cooled by flowing cooling water through a cooling copper pipe 66. The electromagnetic coil 63 is heated to a high temperature by receiving the heat of the formal copper wire 65 through which a large current flows and the heat of the inner ion flame, but the heating is prevented by the cooling water. For cooling the electromagnetic coil 63, water or other various refrigerants may be used, or a forced air cooling method may be adopted.

In the ion flame generator 2 described above, the ion breeder 4 uses the high-frequency magnetic field generated by the multi-stage electromagnetic coil 63. The ions are oscillated and accelerated in the cylindrical main body 60 of the ion breeder 4. Alternatively, a strong electric field capable of generating a strong electric field may be formed.

As shown in FIG. 9, a fuel device 70 for supplying fuel to the ion flame generator 2 has a kerosene supply device 71 for supplying kerosene, metal powder mixed oil, and water, and a water supply device 7.
2. It is composed of three metal fuel feeders 73. The kerosene supply unit 71 is a tank for storing kerosene, and the water supply unit 72 is a tank for storing water.

As shown in FIG. 7, the metal fuel feeder 73 has a negative electrode 81 attached to the bottom of a kerosene tank 80 made of an insulating material.
The plus electrode rod 82 is attached. Negative electrode 81
Is vertically fixed to the center of the bottom of the tank 80, and the two plus electrode rods 82 are attached in such a manner as to be horizontally inserted into both side walls of the tank 80, and the inserted plus electrode rod 82 is inserted into the insertion portion. A gland packing 84 is attached to allow easy removal and insertion and prevent liquid leakage.

The negative electrode 81 is made of a conductive metal in a columnar shape.
2 can be formed in another shape such that efficient discharge is realized. One of the two positive electrode rods 82 is made of iron in a long round bar shape, and one is made of aluminum in a long round bar shape. Each of the positive electrode rods 82 can be formed in another shape or a square rod shape that realizes efficient discharge between the positive electrode rod 82 and the negative electrode 81.

Each of the positive electrode rods 82 is supported by an automatic feeder (electrode moving device) 85, and its tip is inserted into the inside of the fuel tank 80 through a gland packing 84 on the side surface of the fuel tank 80. The gap between the discharge passage 81 and the discharge passage 81 is adjusted so that the discharge easily occurs. Automatic feeder 85
When the tip of the plus electrode rod 82 is reduced and shortened, only the shortened portion can be automatically sent to the minus electrode 81 side, and the distance between the electrodes can be kept constant at all times. Incidentally, the automatic feeder 85 controls the feed amount of the positive electrode rod 82 by, for example, measuring the distance between the electrodes from the outside of the tank 80 with an optical sensor, monitoring the potential or current between the electrodes, and performing appropriate discharge. It can be realized by various methods, such as making it occur, or determining beforehand the amount of reduction of the electrode rod due to discharge as the amount of reduction per unit time.

The minus electrode 81 and the plus electrode rod 82
Is connected to a high-voltage power supply 86, so that, for example, about 30000 to 100000 V can be applied between both electrodes. The applied voltage and current can be set as appropriate according to the shape of the negative electrode 81 and the positive electrode rod 82, the distance between the electrodes, and the electrode material.

The fuel tank 80 is also provided with a fuel amount monitoring device (not shown) for measuring the fuel amount in the tank, and the negative electrode 81 and the positive electrode rod 82 in the tank 80 are exposed from the liquid level. It is made to be able to prevent that. This fuel amount monitoring device is, for example, for additionally supplying a predetermined amount of fuel when the amount decreases, or notifying the administrator. This fuel amount monitoring device prevents discharge from occurring when the electrodes are exposed from the liquid surface, and prevents the fuel tank 80 from firing or exploding by igniting kerosene as fuel.

A stirrer 87 is provided above the fuel tank 80. The stirring device 87 includes a motor 88 and a propeller 89 driven and rotated by the motor 88, and the kerosene in the fuel tank 80 can be stirred by the propeller 89. The rotation speed of the propeller 89 can be set as appropriate.

In the metal fuel supply unit 73, a 300-μm distance is provided between the minus electrode 81 and the plus electrode rod 82 made of iron or aluminum.
When a voltage of 100 to 100,000 V is applied to cause a discharge between the two electrodes, fine particles (0.5
mm or less) iron powder and aluminum powder are stripped off and released into kerosene. At this time, hydrocarbon carbon is extracted in the kerosene, and the extracted carbon is converted to iron or aluminum metal powder. Adheres to produce metal powder mixed oil in which metal powder and kerosene are mixed. A surfactant can be added to the metal powder mixed oil as required, and in this case, the metal powder mixed oil can be stored for a relatively long time. However, it is assumed that the surfactant used does not prevent combustion.

The kerosene feeder 71 shown in FIG. 9 may be provided with a cracking device. The cracking device is for cracking heavy oil having a high boiling point to produce light oil having a low boiling point (such as gasoline). This cracking device is, for example, of a catalytic cracking type using a silica-alumina catalyst or a high temperature (800 to 800) without using a catalyst.
(850 ° C.). There is also a hydrocracking method in which nickel, tungsten or the like is supported on silica-alumina using high-pressure hydrogen. This cracking device is particularly effective when a fuel having a high boiling point such as heavy oil is used instead of kerosene.

The kerosene feeder 71, water feeder 72, and metal fuel feeder 73 of FIG. 9 are connected to the fuel dripping nozzle 52 of the ion flame generator 2 through a fuel pipe, and the kerosene and metal fuel are supplied to the fuel dripping nozzle 52. Powder mixed oil and water can be supplied. From these supply devices 71, 72, 73, only one or a combination of two or more of the necessary fuels can be supplied to the fuel drop nozzle 52 by a fuel switch or the like.
For example, 1800 from the start of ignition of the ion flame generator 2
Only kerosene can be supplied up to about 250 ° C, then metal powder mixed oil can be supplied up to about 2500 ° C, then metal powder mixed oil and water can be supplied, and the appropriate fuel is selected according to the combustion temperature So that they can be supplied.

The ion flame generator 2 includes an incinerator main body 1
Are mounted in a cross (radial) shape on the outer periphery of each of them so that two of each are opposed to each other. By arranging the ion flame generators 2 in a cross shape, high combustion sounds due to explosive combustion (combustion of 13 to 15 m / s) emitted from each apparatus 2 collide with each other, thereby canceling sound waves and colliding sound waves. The sound can be reduced by the Doppler effect caused by the noise. Further, by arranging the ion flame generators 2 at equal intervals in a radial pattern, the high-frequency magnetic field generated from the ion breeder 4 of each device 2 can be formed into a magnetic field required for tokamak confinement. That is, the positive ion flame injected from the ion flame generator 2 is trapped by the shaping magnetic field and can be confined in a donut shape in the incinerator main body 1. This tokamak-type magnetic field allows a high-temperature, highly corrosive cation flame to be concentrated only on the heat-resistant pipe 3 so that effective incineration can be performed. In addition, the inner wall of the incinerator main body 1 and the grate plates 15, 16 and the like can be incinerated. To improve the durability of the furnace.

The exhaust gas purification apparatus group shown in FIG. 9 includes an exhaust gas cooling tank 90, a cooling tower 91, a desalination device (desalination tank) 92, a desulfurization device (desulfurization tank) 93, a denitration device (denitrification tank) 94, It consists of a water tank 95. The high-temperature harmful gas exhausted from the exhaust stack 11 of the incinerator body 1 is cooled in an exhaust gas cooling tank 90, chloride is removed in a desalination tank 92, sulfide is removed in a desulfurization tank 93, and denitrification is performed. The nitrogen gas is removed in the tank 93 so that a low-temperature, non-polluting gas can be released into the atmosphere.

As shown in FIG. 9, the incinerator transports the molten material discharged from the transport device 95 for feeding the transported object to the trash input hopper 17 at a high place and the melting and discharging tube 12 of the incinerator. A processing device 96 for cooling, solidifying, pulverizing, and loading on a dump truck or the like is provided.

[0057]

[Operation Example] An operation example of the incinerator will be described below. When the ion flame generator 2 starts, it burns kerosene to about 1800 degrees to generate a positive ion flame.
The metal powder mixed oil is burned at a temperature exceeding 800 ° C. to generate a cation flame, and then, at a temperature exceeding 2500 ° C., water is also burned to generate a strong cation flame exceeding 4000 ° C.

High-energy cation flames are injected from the four ion flame generators 2 into the incinerator main body 1, the cation flames are confined in a donut shape, and the furnace temperature is reduced to about 4000 to 4500 degrees. Will be kept. In this state, when the objects to be treated are put into the garbage introduction hopper 17, these objects are instantaneously incinerated and melted by being exposed to the cation flame in the furnace and the heat when falling down the heat-resistant pipe 3, and are heated to a high temperature. Is stored in the melt reservoir 18. The inside of the melt reservoir 18 is heated by high frequency, and the melt is stored in a molten state without solidification. Melt reservoir 18
Is filled with the molten material, the opening / closing shutter 19 is opened, and the discharged molten material is cooled, solidified, pulverized into slag by the subsequent device 96, and carried out by a truck or the like.

[0059]

[Embodiment 2] In the incinerator of the present invention, it is desirable to provide two or more ion flame generators 2 in which an ion breeder 4 is added to the incinerator main body 1 in a radial manner. And six aircraft. The incinerator in FIG.
High-frequency magnetic field radiated from the ion breeder 4 of each ion generator 2 is formed into a magnetic field suitable for tokamak type confinement, and is injected from each ion flame generator 2 The combustion noises collide with each other in the incinerator main body 1 and are silenced. If a sufficient tokamak-type confinement magnetic field is not formed even if the ion flame generator 2 is arranged radially, it is also possible to provide an additional electromagnetic coil to confine the ion flame in a donut shape. .

[0060]

Third Embodiment In the incinerator of the present invention, it is possible to provide only one ion flame generator 2 in the incinerator main body 1. FIG. 10 shows an example in which an electromagnetic coil (strong magnetic field / electric field generator) 100 is separately provided at a position facing the ion flame generator 2 and at the left and right positions. This electromagnetic coil 100 has the same structure as the ion breeder 4 shown in FIG. 4, and a cylindrical main body 60 is made of a nonmagnetic metal (brass, stainless steel, etc.) ring 61 and a ferromagnetic metal (iron, nickel, Rings 62 of cobalt or the like are connected alternately to form a cylinder, and an electromagnetic coil 63 is attached to the outer periphery of each ferromagnetic metal ring 62.

In this incinerator, the positive ion flame injected into the incinerator main body 1 is confined in a donut shape by the high-frequency magnetic field generated by the ion breeder 4 and the high-frequency magnetic field generated by the electromagnetic coil 100. Incinerator body 1
Can be arranged close to the ion flame generator 2, but can also be arranged at the center of the furnace as shown by a virtual line in the figure.

[0062]

The following effects can be obtained by using the incinerator according to any one of the first to eighth aspects of the present invention. 1. Since the object to be treated is put into a heat-resistant pipe on which the ion flame acts directly and incinerated and melted, continuous and rapid treatment becomes possible, and a large amount of incinerated material can be treated at high speed. 2. Since the object to be treated is passed through the heat-resistant pipe for incineration and melting, ash and the like do not scatter outside during incineration. Therefore, filters for preventing ash from scattering are not required.

The following effects can be expected by using the incinerator according to the second aspect of the present invention. 1. The magnetic field generated by the radially arranged ion flame generator enables the positive ion flame to be confined in a donut shape in the incinerator main body, so that the service life of the incinerator main body can be improved. 2. The cation flame is confined in a donut shape to enhance the heat storage effect and increase the temperature to the heat-resistant pipe.

The following effects can be expected by using the incinerator according to the third aspect of the present invention. 1. Since a strong magnetic field generator is also used, the arrangement of the ion flame generator can be set to other than radial, and the degree of freedom of designing the incinerator increases.

When the incinerator according to the fourth aspect of the present invention is used, the following effects can be expected. 1. Since the melt can be stored in the melt reservoir in the incinerator main body, batch processing can be performed when the melt is collected.

The following effects can be expected by using the incinerator according to claim 5 of the present invention. 1. A strong cation flame can be generated by the ion breeder, and the furnace temperature can be increased to 4000 ° C. or higher. With a high temperature of 2.4000 degrees or more, a large amount of processing objects can be processed at high speed.

The following effects can be expected by using the incinerator according to claim 6 of the present invention. 1. The number of cations can be increased by the metal fuel, and a stronger cation flame can be generated.

The following effects can be expected by using the incinerator according to claim 7 of the present invention. 1. Since water is decomposed to increase the number of cations, a strong cation flame can be generated. 2. Since water itself is a fuel that costs little,
Fuel costs can also be reduced.

The following effects can be expected by using the incinerator according to claim 8 of the present invention. 1. Since the oxidation of the heat-resistant pipe is prevented, the service life of the pipe can be increased, and the operating cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a first embodiment of an incinerator according to the present invention.

FIG. 2 is a longitudinal sectional view of the incinerator of FIG.

FIG. 3 is a longitudinal sectional view of the ion flame generator of FIG.

FIG. 4 is a longitudinal sectional view of the ion multiplier of FIG. 1;

FIG. 5 is an explanatory view of the installation of a fuel atomizer attached to the ion flame generator of FIG. 3;

FIG. 6 is a longitudinal sectional view of the fuel atomizer in FIG. 5;

FIG. 7 is a longitudinal sectional view of a metal fuel supply device of the fuel device attached to the incinerator of FIG. 1;

FIG. 8 is an explanatory view showing an oxidation preventing structure of the heat resistant pipe of FIG. 1;

FIG. 9 is a schematic diagram showing additional equipment of the incinerator of FIG. 1;

FIG. 10 is a cross-sectional view showing a second embodiment of the incinerator according to the present invention.

FIG. 11 is a cross-sectional view showing a third embodiment of the incinerator according to the present invention.

FIG. 12 is a longitudinal sectional view of an incinerator using a conventional ion flame generator.

13 (a) is a cross-sectional view of the incinerator of FIG. 12, (b)
2 is a partial sectional view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Incinerator main body 2 Ion flame generator 3 Heat resistant pipe 4 Ion breeder 18 Melt reservoir 25 Graphite pipe 72 Water fuel supply 73 Metal fuel supply 100 Strong magnetic field / electric field generator

────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. ⁷ Identification code FI F23G 5/00 ZAB F23G 5/00 ZAB 5/48 ZAB 5/48 ZAB F23J 1/00 F23J 1/00 B (56) References JP-A-3-137408 (JP, A) JP-A-3-50405 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) F23G 5/24 F23C 11/00 F23G 5/00 F23G 5/48 F23J 1/00

Claims (8)

(57) [Claims] 1. An incinerator provided with an ion flame generator (2) in which a combustion flame of kerosene or the like is ionized (plasmaized) in an incinerator main body (1) to generate an ion flame. A heat-resistant pipe (3) to which the ion flame of the ion flame generator (2) is blown is provided in the furnace body (1), and objects to be treated such as dust are put into the heat-resistant pipe (3) and incinerated. An incinerator using an ion flame generator characterized by being melted. 2. An ion breeder (4) in which a magnetic field / electric field is applied to an ion flame generated from the ion flame generator (2) to increase the number of ions in the flame. An incinerator using the ion flame generator according to claim 1. 3. The incinerator main body (1) is provided with two or more ion flame generators (2) radially disposed around the incinerator main body (1), and a heat-resistant pipe (3) is provided for each ion flame in the incinerator main body (1). The incinerator using the ion flame generator according to claim 1 or 2, wherein two or more generators are radially arranged at positions corresponding to the generator (2). 4. An ion flame according to claim 1, wherein said incinerator body (1) is provided with a strong magnetic field / electric field generator (100) for generating a magnetic field / electric field. Incinerator using generator. 5. The incinerator body (1) is provided with a molten pool (18) for storing a molten material melted by the heat-resistant pipe (3). An incinerator using the ion flame generator according to any one of the above. 6. A metal fuel supply device (73) capable of supplying a metal powder mixed oil obtained by mixing metal powders such as iron and aluminum to a liquid fuel such as kerosene to the ion flame generator (2).
An incinerator using the ion flame generator according to any one of claims 1 to 5. 7. An ion flame generator according to claim 1, wherein said ion flame generator (2) is provided with a water fuel supply (72) capable of supplying water. Incinerator using equipment. 8. The heat-resistant pipe (3) is formed by coating a cylindrical graphite pipe (25) with an oxide or the like on an outer peripheral surface thereof and keeping the graphite pipe (25) at a negative potential. An incinerator using the ion flame generator according to any one of claims 1 to 7.