JP2001047002A - Waste detoxification treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detoxicate wastes in a method entirely different from a conventional method. SOLUTION: This detoxification apparatus is composed of a horizontal type furnace body 1, a transportation part 2 for transporting wastes put in the furnace body 1 in the longitudinal direction of the furnace body 1, a burner 3 installed in the furnace body 1 for heating the wastes during the transportation, containers 51-56 for recovering low temperature melted substances obtained by melting the constituent substances of the wastes, a plasma arc generation part 4 for completely melting the wastes after heating by heat generated by multi arc plasma M1, M2, a crucible 5 for recovering high temperature melted substances obtained by completely melting the wastes, and a pipeline 60 for leading the gases generated during the heating of the wastes to the plasma arc generation part 4 in order to detoxicate the gases by the multi arc plasma M1, M2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste detoxification apparatus for detoxifying waste by a completely different method.

[0002]

2. Description of the Related Art A typical example of a conventional exhaust gas detoxifying apparatus is an incinerator, in which waste is burned by a flame of a burner or the like, and harmful substances are prevented from being released into the air by a dust filter or the like.

[0003]

However, in the case of the above-mentioned conventional example, since a large amount of air is sent into the furnace to burn the waste, it is inevitable that smoke, ash and the like are emitted, and this is an environmental problem. It is one of the causes of pollution.
In particular, unless the combustion temperature is sufficiently high, harmful substances such as dioxin are generated, and it is very difficult to completely eliminate pollution. However, to increase the incineration temperature,
Expensive incinerators are required, and fuel and maintenance costs are high. In addition, a large amount of carbon dioxide is released into the atmosphere, which is one of the factors promoting global warming. Furthermore,
Non-burnable garbage cannot be disposed of in incinerators, and even though some are renewable, they are buried in the ground to reduce costs and prevent pollution. Has become a major issue in terms of protection of

SUMMARY OF THE INVENTION The present invention has been made in view of the above background, and an object of the present invention is to provide a waste detoxification apparatus for detoxifying waste by a method completely different from the conventional one. It is in.

[0005]

According to the present invention, there is provided a waste detoxification processing apparatus comprising: a tubular furnace body; and a transport unit for transporting waste put in the furnace body in a longitudinal direction of the furnace body. A heating unit for heating the waste in the transporting process, a low-temperature melt recovery unit for recovering the low-temperature molten material obtained by dissolving the constituents of the waste, and a multi-arc plasma heat generation for the heated waste. A plasma arc generating unit for completely melting the waste, a high-temperature molten material recovery unit for recovering a high-temperature molten material obtained by completely melting the waste, and a gas generated in the furnace in the process of heating the waste. Means for detoxifying the plasma arc with a multi-arc plasma, the plasma arc generating unit having a means for applying a voltage to a plurality of electrodes arranged such that their tips are close to each other. By using multiple electrodes Is characterized by multi-arc plasma has a configuration that occurs between the ends.

[0006] More preferably, it is desirable that the organic gas generated in the process of heating the waste is guided to a burner as a plasma arc generating section and / or a heating section and burned.

[0007] As an example of the transfer section, there is one having a configuration provided with an axial screw that is disposed in the furnace and sends out waste, and a motor connected to the axial screw.

[0008] In this case, a spirally formed blade is provided around the axis of the axial screw, and a stirring blade disposed between the blade pitches for stirring waste in the furnace. Is desirably provided. In addition, it is preferable that a cylindrical core be used as the axial core of the axial screw, and a high-temperature gas be passed through the cylindrical core.

[0009] More preferably, it is desirable to provide a processing and regenerating apparatus which is arranged around the high-temperature molten material recovery section, and in which the high-temperature molten material is poured into a processing mold and molded for reproduction.

Further, it is desirable that the furnace body provided with the transport section and the like is divided into a plurality of units so that they can be assembled.

The device itself may be mounted on a vehicle.

Another waste detoxification apparatus of the present invention generates multi-arc plasma between the tips of a plurality of electrodes by applying a voltage to a plurality of electrodes arranged such that the tips are close to each other. A multi-arc furnace, an incinerator for incinerating waste, and a waste inlet formed in the incinerator wall that is disposed inside the incinerator so as to be heated by the incineration heat. After distributing another waste that is not suitable for incineration, the waste distribution pipe for leading to the multi-arc furnace and the gas generated in the pipe while another waste passes through the waste distribution pipe are collected. And a pipe for leading to an arc furnace.

[0013] More preferably, it is desirable to provide a plurality of waste inlets and waste distribution pipes.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic plan view of a waste detoxification apparatus, FIG. 2 is a schematic side view of the apparatus, and FIG.
1 is a schematic cross-sectional view of an α portion in FIG. 1, (B) is a schematic side view thereof, FIG. 4 is a partial cross-sectional view of an axial screw of the same apparatus, and FIG. FIG. 2 (B) is a side view thereof.

The waste detoxification processing apparatus described here by way of example is an apparatus for detoxifying municipal garbage and shredders from industrial waste and garbage without discrimination. It has a processing capacity of about 20 to 300 tons per day, and is configured to not only treat waste but also to extract and collect substances contained therein. Here, it is installed inside a building 70 3 m underground and 9 m above ground, and the lower part of the device is arranged underground.

The apparatus comprises a horizontal furnace body 1 formed by joining a plurality of steel pipes and the like into a zigzag shape as a whole, and a waste placed in the furnace body 1 directed in a longitudinal direction of the furnace body 1. A transport unit 2 for transporting, a burner 3 (corresponding to a heating unit) provided in the furnace body 1 and heating the waste in a transport process, and a low-temperature molten material obtained by dissolving constituent materials of the waste. Containers 51, 52, 53, 54, 55, 56 to be collected (corresponding to a low-temperature molten material collecting unit) and a plasma arc generating unit 4 for completely melting the heated waste by the heat generated by the multi-arc plasmas M1, M2. And a crucible 5 (corresponding to a high-temperature melt recovery section) for collecting a high-temperature molten material obtained by completely melting the waste, and a multi-arc plasma M1, Plasma arc for detoxification treatment by M2 Means for directing the generator 4 has (pipe 60) and the basic configuration with.

The organic gas generated in the process of heating the waste is guided to the plasma arc generator 4 and the burner 3 for combustion. The organic gas is disposed around the crucible 5 and is placed in the crucible 5. A processing and regenerating apparatus 80 in which the recovered high-temperature melt is poured into a processing mold and molded for reproduction.
Is also provided. Hereinafter, each component will be described in detail.

The furnace body 1 includes furnaces 11 (No. 1 furnace), 12 (No. 2 furnace), 13 (No. 3 furnace) and 14 (No. 4 furnace) which are steel tubes, and a furnace 15 (No. 4 furnace) which is a heat-resistant steel tube. 5) and furnaces 16 (6) and 17 (7), which are heat-resistant ceramic tubes. Each furnace has a cylindrical connection furnace 18.
1, 182, 183, 184, and 185 are sequentially connected. However, the furnace 15 and the furnace 16 are directly connected.

At the upper part of the furnace 11, a hopper 111 for putting waste into the furnace body 1 is attached. The waste is compressed by the compressor 77 so as to be easily processed, and then conveyed to the hopper 111 by the packet conveyor 71.

The connection furnace 184 is shown in FIG.
The waste sent out from the furnace 14 is received by the connected furnace 184 and then sent into the furnace 15 by the axial screw 21 of the transport unit 2. Coupling furnace 184
A hole 1841 for discharging the low-temperature molten material obtained by melting the waste in the furnace 14 to the outside of the furnace is formed on the lower surface thereof, while the hole 1841 generated in the furnaces 15 and 16 is formed on the upper surface thereof. A hole 1842 is formed for taking out a harmful gas such as an organic gas outside the furnace. The low-temperature molten substance discharged out of the furnace through the hole 1841 is recovered in the container 52, while the organic gas discharged out of the furnace through the hole 1842 is guided to the burner 3 through the pipe 61. As shown in FIG. 1, a gas tank 611 is provided in the middle of the pipe 61. Connecting furnaces 181, 18
2, 183 and 185 have basically the same configuration, but will be described later in detail for convenience of explanation.

The furnace body 1 and the like are held by a steel structure 73. A heat insulating panel 7 is provided on the inner surface of the steel structure 73.
4 is attached, and the whole of the furnace body 1 and the like are covered with a heat insulating panel 74.

The conveying section 2 is provided inside the furnace body 1 and has an axial screw 21 made of stainless steel for discharging waste.
And a motor 24 connected to the axial screw 21. In the figure, 22 is an axial screw 21
A bearing that axially supports a shaft tube 211 that is a shaft core 211 of
Reference numeral 212 denotes a connecting gear attached to the shaft pipe 211.

That is, as shown in FIG. 1, the waste put into the popper 111 is supplied to the furnace 1 by the axial screw 21.
1, 12, 13, 14, 15, 16, and 17, and are sequentially heated by the burner 3 during the transport process. However, the waste is biased to a lower position in the furnace due to the gravity acting on the waste, and tends to be sent out as it is, so that the burner 3 may not be sufficiently heated.

Therefore, an axial screw 21 having a structure as shown in FIG. 4 is used. This is the axial screw 21
213, which are formed in a spiral shape around the shaft core 211 for discharging waste in the furnace, and a blade 213.
And a stirring blade 214 for stirring the waste in the furnace. The stirring blades 214 are attached to the shaft core 211 at 90-degree pitch intervals, and the size thereof is set substantially equal to the inner diameter of the furnace body 1. On the other hand, the size of the blade 213 is set smaller than the inner diameter of the furnace body 1 so that a space is formed between the inner surface of the furnace body 1 and the blade 213 over the entire circumference.

Therefore, the waste in the furnace body 1 is sent out by the blade 213 when the axial screw 21 rotates, and is simultaneously scooped up from below by the stirring blade 214 to be stirred as a whole. Since the entire inner peripheral surface of the furnace body 1 is easily in contact with the entire furnace, the furnace body 1 is sufficiently heated.

A pipe is used as the shaft core 211 of the axial screw 21. This is to allow the high-temperature gas generated by the multi-arc plasmas M1 and M2 in the furnace 17 to pass in the direction of the arrow as shown in FIG. A pipe 25 is attached to an end of each shaft core 211 to guide the high-temperature gas from the furnace 15 to the furnace 14. FIG. 3 shows the axial screws 21 and the like provided inside the furnaces 14 and 15, but the same applies to those provided in the furnaces 11, 13 and 16. Each pipe 25 is heated by a gas burner (not shown) so that the temperature of the high-temperature gas does not drop extremely in the process of sequentially passing through the furnaces 17, 16, 15, 14, 13, 12, and 11.

The burner 3 is a gas burner, an oil burner or the like, and is attached to the furnaces 11, 12, 13, 14, 15. The manner of attachment differs between the furnaces 11 to 14 and the furnace 15 in relation to the furnace temperature and the heat resistance of the furnace. That is, as for the furnaces 11 to 14, the burners 3 are respectively arranged outside the furnaces, and the waste passing through the furnaces 11 to 14 is heated through the wall surfaces of the respective furnaces. On the other hand, in the furnace 15, the burner 3 is attached to the furnace itself, and the waste passing through the furnace 15 is directly heated by irradiating the waste with a flame such as gas in the traveling direction. It has become.

As described above, the waste is heated by the indirect heating method in the furnaces 11 to 14, and the heating power of the burners 3 attached to the respective furnaces is appropriately adjusted.
To 160 degrees, 150 to 250 degrees in the furnace 12, 250 to 350 degrees in the furnace 13, and 350 to 650 degrees in the furnace 14. The waste is heated in the furnace 15 by a direct heating method, and the burner 3 attached thereto is heated.
By appropriately adjusting the heating power of the furnace,
It is set to 850 degrees.

As a result, in the furnace 11, mercury or the like is extracted from the waste, flows from the inclination angle of the furnace 11 to the connected furnace 181, and is collected in the container 51. In the furnace 12, an inorganic molten substance that melts at 150 to 250 degrees is extracted, flows into the connected furnace 182, and is collected in the container 52. In the furnace 13, solder or the like is extracted, flows into the connection furnace 183, and is collected in the container 53. In the furnace 14, aluminum, lead, zinc, and the like are extracted, flow into the connection furnace 184, and are collected in the container 54. In the furnace 15, an inorganic molten substance that is melted at 600 to 850 degrees is extracted, and this is extracted from a hole (not shown) formed below a connection portion between the furnace 15 and the furnace 16, and is extracted by the container 17. Collected.

In the furnace 17, a multi-arc plasma M
The inside of the furnace is made 1200 to 1600 degrees by 1, M2, and the inside of the furnace 16 is made 850 to 1200 degrees by the surplus gas. As a result, in the furnace 16, copper, brass, ceramic melt, and the like are extracted and flow into the connection furnace 185,
Collected in the container 55.

As described above, since the inside of each furnace is set to a different temperature, it is possible to extract and collect different kinds of constituent substances of waste. This applies to the gas generated in each furnace.

That is, in the furnaces 11 to 13, low-evaporation gas such as water, ammonia, and chlorofluorocarbon is generated, flows into the combined furnace 181 together with the air mixed in the furnace, and flows into the pipe 63, the filter 64, It is discharged through the water cooling tank 65. The harmful gas is led to the multi-arc generating section 4 in the furnace 17 via a pipe 181 and an underwater filter (not shown).

The furnace 11 is provided with a semicircular gas shielding plate (not shown) for preventing low-evaporation gas from leaking from the hopper 111.

In the furnace 14, an organic gas is generated, and the organic gas flows into the connecting furnace 183, where the pipe 181 and the gas tank 6
The gas is guided to the multi-arc generating section 4 in the furnace 17 via 21. Organic gas is also generated in the furnace 15, and the organic gas is led to the burner 3 via the pipe 181 and the gas tank 611 as a part of the fuel gas. Since the organic gas obtained in this way is after the low-temperature molten substance is recovered, it is of very good quality, and burning it does not pose any environmental problem. Conversely,
In order to obtain high-quality organic gas, the waste is heated by the burner 3 in the process of transporting the waste, and the low-temperature molten material is extracted and recovered from the waste.

For example, when the waste contains organic substances such as plastic, rubber, wood, paper, cloth, etc., all of them are gasified at about 600 degrees. Burn this organic gas to burner 3
And so on, so that the cost of the fuel such as the burner 4 can be reduced.

The waste in the furnaces 11 to 15 may be heated by a heater instead of the burner 3. Heating may be performed by both the burner 3 and the heater. However, since it is costly to attach a heater to each furnace in addition to the burner 3, it is preferable to perform the following.

That is, a voltage is applied to both ends of the shaft core 211 of the axial screw 21 to generate Joule heat in this portion, the temperature of the entire axial screw 21 is raised, and waste passing through each furnace is removed. Use additional heating. In this case, as described above, the stirring blade 2 of the axial screw 21 is used.
Including the point where the waste is agitated in the furnace by 13 makes it possible to efficiently heat the waste.

The furnace 17 is provided with two plasma arc generators 4. Each of the multi-arc plasmas M1 (M2) is provided between a plurality of electrodes by applying a voltage to the plurality of electrodes arranged such that the tips are close to each other.
Is generated. Here, three electrodes, which are electrode rods, are arranged in an inverted conical shape, and pulse-wave three-phase alternating current is applied to each electrode (300 KV to 1000 K).
V). In addition, a pipe 60,
Gas introduced through 62 is introduced. In addition to the three-phase alternating current, a polyphase alternating current such as six-phase or nine-phase alternating current may be used, and the number of electrodes is increased accordingly.

The multi-arc plasmas M1 and M2 are significantly different from ordinary plasmas in that high-energy wave power is generated between a plurality of electrodes together with a rotating magnetic field, and a high temperature of several thousand degrees is generated. Therefore, plasma can be obtained not only in an inert gas but also in the air, and its frame diameter is as large as 10 to 1000 mm. Even if tungsten or a poorly soluble ceramic is used, it can be completely melted. In addition, when the gas generated in the furnaces 11 to 14 is guided into the flames of the multi-arc plasmas M1 and M2, the gas is detoxified. Further, the organic gas is difficult to burn because the air is lean in the furnace 17, but generates heat by carbonization.

In short, the multi-arc plasmas M1 and M1, including the energy generated when the organic gas is burned,
By the energy of 2, not only the waste is completely melted, but also harmful substances such as toxic gas and dioxin that can be generated in the furnace while the waste is heated are decomposed and completely detoxified. Will be.

In addition to the PC from the beginning,
Even if B, dioxin, asbestos, cadmium and the like are contained, they are detoxified as described above. It is also possible to detoxify fish and shellfish, soil, sludge, etc., which are polluted by pollution such as heavy metals and radioactivity as waste.

The furnace 17 has a multi-arc plasma M
1, M2 generates a high-temperature gas, which is sequentially passed through the shaft core 211 of each of the axial screws 21 of the furnaces 17 to 11 and used to heat the waste in the furnaces 16 to 11 as described above. Therefore, there is no need to use a large-capacity burner 2, which is advantageous in reducing costs.

Such a multi-arc plasma M1, M
The high-temperature molten material obtained by completely melting the waste by 2 is taken out of the furnace from the end face of the furnace body 17 and received and recovered by the crucible 5. Even when the high-temperature molten material recovered by the crucible 5 is composed of a plurality of materials, the material can be recovered using the difference in specific gravity. In addition, this point is the same also about the low-temperature melting substance collect | recovered by the containers 51-55.

For example, when the waste is an automobile, lead, copper, iron, aluminum, ceramics, slag, etc. are collected in the crucible 5 and accumulated from the bottom in this order due to the difference in specific gravity of each substance. Each substance can be collected individually. However, even if the substances have almost the same specific gravity, the same substances are aggregated due to their respective characteristics, so that the substances can also be collected individually.

Since the high-temperature molten material recovered in the crucible 5 in this way is a single substance or a form similar to this, it is molded and recycled using the processing and regeneration apparatus 80 here. The processing and reproducing apparatus 80 has a structure as shown in FIG.

On the base table 87, an index unit 81, a press cylinder 83 and a shutter unit 8
4 is attached. A turntable 82 is provided on the index unit 81, and a total of four molds 821 are provided on the turntable 82. A press unit 8 is provided at the tip of the press cylinder 83.
31 are attached.

When the shutter unit 84 is opened for a predetermined time, the high-temperature molten material in the crucible 5 is put into a mold 821 on the turntable 82 through the feeder unit 52 attached to the side of the crucible 5. After that, when the turntable 82 is rotated by 90 degrees and the shutter unit 84 is opened again, the high-temperature molten material is put into the next mold 821. By the same process, the high-temperature molten material is put into the next mold 821.

Then, a mold 821 containing a high-temperature molten material is provided.
When is located just below the press cylinder 83, the press cylinder 83 operates, the press unit 831 enters the mold 821, and the high-temperature molten material is molded. Thereafter, a molded product is taken out of the mold 821 by an arm mechanism (not shown),
It is transferred onto the slow cooling conveyor 85. By repeating this, the high-temperature molten material in the crucible 5 is successively regenerated as a molded product.

The slow cooling conveyor 85 is arranged so as to surround the crucible 5. The molded product is conveyed by the slow cooling conveyer 85, is gradually cooled during one round, and is returned to the original position again. The molded product returned to the original position is loaded on a truck bed or the like (not shown) and shipped as a product. In the figure, reference numeral 85 denotes a heat insulating material for gradually cooling the molded product. If the high-temperature molten material is regenerated as a molded product by using the processing and regenerating device 80, added value can be created.

The reason why the lower portion of the apparatus is arranged underground is to prevent noise generated from the press cylinder 83 and the like from being emitted to the outside.

Incidentally, the multi-arc plasmas M1, M
With 2, iron and aluminum, copper and aluminum,
New alloys and new materials such as gold and iron can be obtained. In the figure, 76
Is a multi-arc experimental furnace having a neutral electrode with seven electrodes for conducting an experiment for producing a new alloy or the like. Since iron, aluminum, copper, aluminum, and the like are collected alone in the crucible 5 and the like, if the iron, aluminum, copper, and aluminum are guided to the experimental furnace 76, the above-described new alloys and new materials can be manufactured. It will also be possible to create added value.

Further, the furnace body 1 provided with the heater 3, the transfer section 2 and the like is divided into units of furnaces 11 to 17 and can be assembled. Since each of the above units can be selected and assembled in various ways, it is possible to sufficiently meet various requests regarding the types of low-temperature molten substances to be extracted and recovered from waste. In the figure, reference numeral 75 denotes a traveling crane used mainly when assembling the units.

In the case of the present apparatus configured as described above, it is possible to treat the waste at once without discriminating it into burnable garbage and non-burnable garbage. In addition to the need for discrimination, non-burnable garbage does not need to be buried in the ground, which is very significant. Because it is possible to not only treat waste but also to extract and recover constituents contained in waste, it is possible to create value-added products from waste and promote resource conservation. Become.

In the course of this treatment, harmful substances such as dioxin and harmful gases such as chlorine gas are included.
Since no ash or smoke is emitted, the problem of environmental pollution is eliminated at once.

Although air is necessary to burn the gas and the like from the burner 3, it does not necessarily burn the waste itself, but only heats it, and at least serves to completely treat the waste. Unlike the conventional method, a large amount of air does not need to be sent into the furnace 17 which performs the above-described method. As a result, a large amount of carbon dioxide is not released into the atmosphere, and there is no problem with global warming.

Since there is no need to send a large amount of air into the furnace body 1, the furnace body 1 itself becomes smaller, and accordingly, downsizing of the apparatus can be promoted. In addition, the point that the organic gas generated in the process of heating the waste is led to the burner 3 or the like as a combustion gas, the furnaces 11 to 17 are arranged in multiple stages and the rising heat is effectively used, Considering the fact that a high temperature of several thousand degrees can be easily obtained by the arc plasmas M1 and M2, it is possible to greatly reduce the cost required for treating waste.

On the other hand, not only thermal paper, fluorescent lamps, mercury batteries, medical waste, agriculture, forestry and fisheries waste, etc., but also soil and sludge contaminated by pollution as described above are made harmless. Since it can be processed and can be transformed into a useful substance, it greatly contributes to the improvement of the global environment.

The soil, sludge, etc. are stored in the hopper 1
It is preferable to heat the mixture into the furnace 11, and to pass through the furnaces 11, 12, and 13 to about 300 ° C., at which the organic matter is carbonized, and to take it out from the lower surface of the connection furnace 183. The removed soil and the like are sterilized and mixed with carbon, and are suitable for soil for cultivation, playgrounds, etc., and can be commercialized as garden supplies such as flowerpots, sewer drains or water tanks where microorganisms live.

When harmless treatment of pollutant gas, waste oil, PCB liquid and the like is performed by using the same apparatus, it is preferable that the harmful gas is sprayed and ejected to the multi-arc plasmas M1 and M2. There is also an advantage in this respect, since an electrode cooling effect can be obtained.

The above-described apparatus is intended to detoxify waste and at the same time to extract and collect substances contained in the waste to regenerate it as a commercial product. A laid-out design would result in a smaller and less expensive device.

For example, in the above-described apparatus, the configuration was such that the first to seventh furnaces were combined.
Reactor No. 4, No. 5 and No. 7 are combined, and the temperature inside the No. 1 furnace is set at 350 ° C. (The temperature setting of No. 4 No. 5, No. 7 and No. 7 is the same as that of the above-described apparatus. The harmful gas generated in the No. 1, No. 4, No. 5, and No. 7 furnaces is guided to the multi-arc generating unit 4 of the No. 7 furnace so as to be detoxified by the multi-arc plasmas M1 and M2. Change design.

In this case, the low-temperature molten substance and the high-temperature molten substance extracted and recovered from each furnace are mixed with various substances, and although their value as a product is low, the same as the above-described apparatus except for this point Is obtained.

The apparatus redesigned in this way is small and inexpensive, and if it has a processing capacity of about 1 to 15 tons per day, factories, hospitals, schools, restaurants, shrines and tourist facilities of small and medium enterprises. Etc. can be used sufficiently. In particular, because it can be easily mounted on a car and transported in terms of miniaturization, it can be brought to the place where waste is present, and the waste can be detoxified at that place. There is great significance in that the transportation of goods is unnecessary.

Next, another embodiment of the present apparatus will be described with reference to the drawings. FIG. 6A is a schematic diagram of the same device,
(B) is a layout view of the furnace body of the apparatus. A major difference from the above-described device is that the furnace body 100 is arranged vertically, and the description will be made focusing on this.

The furnace body 100 is a steel tube furnace 110 (1).
No. 2), 120 (No. 3), 140 (No. 3)
(No. 4 furnace), 150 (No. 5 furnace) and a ceramic tube furnace 160 (No. 6 furnace), and FIG.
Are arranged in a cylindrical shape as shown in FIG. Each furnace is
They are sequentially connected via inclined furnaces 171, 172, 173, 174. However, the furnace 150 and the furnace 160 are directly connected.

The furnace 160 is provided with a plasma arc generator 4, and the crucible 5 is disposed at an end of the plasma arc generator 4. Each furnace is heated by a non-illustrated burner by an indirect heating method. A hopper 112 for putting waste into the furnace body 100 is attached to an upper part of the furnace 110.

Holes (not shown) for discharging the low-temperature molten material out of the furnace are formed on the lower surfaces of the inclined furnaces 171 and 173 and the furnace 150, respectively.
A pipe 175 for guiding the harmful gas generated in the chambers 0, 120, and 130 to the plasma arc generator 4 is connected. The upper surface of the furnace 140 is connected to a pipe 176 for guiding the organic gas generated in the furnace 140 to the burner or the like as a part of the fuel gas. A gas tank 178 is provided in the middle of the pipe 176. A pipe 177 is provided on the upper surface of the furnace 150 in the same manner as described above. Just plumbing 1
The organic gas is water-cooled by a gas tank 179 provided in the middle of 77 so that oil can be recovered.

A total of four stainless steel pipes are provided inside the furnace 110. A pipe 113 is spirally wound around a main pipe 114 inserted along the furnace 110. These pipes are heated by a gas burner (not shown) arranged below. That is, the waste in the furnace 110 is also heated by the main pipe 114 and the slave pipe 113. This is exactly the same for the furnaces 130 and 150.

The furnace 120 is provided with an axial screw 121 for lifting the waste accumulated in the inclined furnace 171. This has exactly the same configuration as the axial screw 21. The only difference is that the axial core of the axial screw 121 is heated by a gas burner (not shown) arranged below. This is exactly the same for the furnace 140.

That is, when the waste is put into the hopper 112, the waste is brought into contact with the inner wall of the furnace 110, the furnace pipe 114 and the slave pipe 113 by gravity,
1, and then moves to a position below the furnace 120 because the inclined furnace 171 is inclined. Part of the waste is melted by the temperature inside the furnace 110. The low-melting substances obtained at this time, such as mercury and solder, also flow into the inclined furnace 171 and out of the furnace from here, and are collected in a container not shown.

The waste reaching the lower position of the furnace 120 is
It is lifted up to the position above the furnace 120 by the axial screw 121, moves to the position above the furnace 130 because the inclined furnace 172 is inclined, falls down to the inclined furnace 173 in the same manner as described above, and Move to the lower position.

The toxic gas generated in the furnace while the waste is conveyed to the furnaces 110, 120, and 130 is guided to the plasma arc generator 4 through the pipe 175 and made harmless by the multi-arc plasmas M1 and M2. It is processed.

The waste reaching the lower position of the furnace 140 is
Similarly to the above, the screw is lifted up to a position above the furnace 140 by the axial screw and moved to a position above the furnace 150 because the inclined furnace 174 is inclined.
Fall to the entrance. Part of the waste is melted by the temperature inside the furnace 140. The low-melting substance such as lead obtained at this time flows into the inclined furnace 173, is taken out of the furnace from here, and is collected in a container (not shown). Further, a part of the waste is melted by the temperature in the furnace 150. The low melting substance such as aluminum obtained at this time is taken out of the furnace through a hole (not shown) formed in the upper and lower surface of the furnace 160, and collected in a container (not shown).

The organic gas generated in the furnace while the waste passes through the furnace 140 is led to the gas burner via the pipe 176 and burned. Organic gas generated in the furnace while the waste passes through the furnace 150 is also guided to the gas burner via the pipe 177 and burned. The organic gas generated at this time does not need to be detoxified by the multi-arc plasmas M1 and M2 because there is no possibility that the organic gas contains a harmful gas due to the type of waste.

The waste that has reached the entrance of the furnace 160 is completely melted by the heat generated by the multi-arc plasmas M 1 and M 2, and the high melting material such as ceramics generated at this time is collected in the crucible 5.

Even with this apparatus as described above, the same effects as those of the apparatus shown in FIGS. 1 to 5 can be obtained. But furnace body 1
The size of the furnace can be further reduced because the furnace is made vertical and the furnaces are arranged close to each other in a cylindrical shape. Moreover, the furnace body 100 is made vertical and the surplus heat is effectively used.
0, 150, no axial screw, furnace 11
For 0 to 150, a direct heating method using a burner is not used, and it is not necessary to use a refractory ceramic material, so that cost reduction can be promoted. Needless to say, if the design is changed so that the second and third furnaces are omitted, it is possible to further reduce the size and cost.

The waste detoxification processing apparatus of the present invention is not limited to the above-described embodiment, and any document may be used as long as the furnace body is cylindrical.
As for the transport unit, a belt-like conveyor may be used as long as the waste put in the furnace can be transported. As for the low-temperature melt recovery section and the high-temperature melt recovery section, any type may be used as long as the melt can be accommodated.

Next, an embodiment of the invention different from the above will be described with reference to the drawings. FIG. 7A is a schematic plan view of the same device, and FIG. 7B is a schematic side view thereof.

The present device is a device for detoxifying garbage from general households. When a voltage is applied to a plurality of electrodes arranged so that the tips are close to each other, the tips of the plurality of electrodes are removed. A multi-arc furnace 240 for generating multi-arc plasma between the parts, an incinerator 200 for incinerating waste such as paper and wood, and an inside of the incinerator 200 that are heated by the incineration heat of the incinerator 200 Waste inlet 20 which has been formed and formed on the furnace wall of the incinerator 200
Waste circulation pipes 210 and 220 for introducing wastes such as garbage, plastics, and the like that are not suitable for incineration introduced from the first and the second 202 to the multi-arc furnace 240;
The structure is provided with pipes 211 and 212 for guiding gas generated in the waste circulation pipes 21 and 220 in the process of passing the waste to the multi-arc furnace 240.

The multi-arc furnace 240 is arranged next to the incinerator 240. Its configuration is the same as that of the plasma arc generating section 4 and differs only in that it has a small capacity.

The incinerator 200 has a structure in which waste such as paper, wood, etc., inserted from a waste input port (not shown) is burned in the furnace body 230. They are incinerated.

On the upper side of the incinerator 200, there are formed a waste input port 201, which is an input port exclusively for garbage, and a waste input port 202, which is an input port exclusively for plastics, rubber, and the like. Garbage is not suitable for incineration because it contains moisture, and plastics and rubber are not suitable for incineration because if they are incinerated as they are, harmful substances will remain or harmful gases will be generated.

The waste distribution pipes 210 and 220 are connected to the incinerator 2
00 are spirally arranged inside. This is to sufficiently heat the waste input from the waste input ports 201 and 202. However, waste input port 2
Since the plastics, rubber, and the like input from 02 are less likely to be heated than the garbage input from the waste input port 201, the waste distribution pipe 220 is longer than the waste distribution pipe 210. The reason why a plurality of waste inlets and waste distribution pipes are provided is based on such a reason.

One end of the waste flow pipes 210 and 220 communicates with the waste inlets 201 and 202, respectively, while the other end passes through the partition wall 205 of the incinerator 200 and is located above the electrode of the multi-arc furnace 240. You are being led.

The pipes 211 and 212 are taken out from the upper part of the incinerator 200 to the outside of the furnace, and are led to the upper part of the electrodes of the multi-arc furnace 240 through holes 206 formed in the furnace wall of the multi-arc furnace 240.

That is, when raw garbage is input from the waste input port 201, the garbage falls down in the waste flow pipe 210 by gravity. However, since the waste distribution pipe 210 is curved, most of the waste pipe is caught on the way. Since the waste circulation pipe 210 is heated by the heat in the incinerator 200, the garbage is also heated, and the moisture gradually decreases with the generation of the organic gas.
To the multi-arc furnace 240, where the multi-arc plasma evaporates completely due to the heat generated. The organic gas is guided to the center of the multi-arc plasma frame via the pipe 211 and burned.

On the other hand, when plastic or the like is introduced from the waste inlet 202, the waste flow pipe 220 falls by gravity. Also in this case, since the waste flow pipe 210 is curved, most of it is caught on the way. Since the waste distribution pipe 220 is heated by the burner 230, plastics and the like are dissolved together with the generation of harmful gas, and the dissolved substance flows down the waste distribution pipe 210, reaches the multi-arc furnace 240, and generates multi-arc plasma. It is processed by evaporation due to heat generation. Noxious gas is pipe 2
It is led to the center of the multi-arc plasma frame via the blast-air 12 and is rendered harmless.

Unlike the apparatus shown in FIGS. 1 to 5, the above-mentioned apparatus is a general household refuse incineration apparatus, so that there is no need to regenerate and collect waste constituents. Except for this point, the device is basically the same as the above-described device, and therefore, the same advantages as the device can be expected.
However, since smoke, ash, and the like generated when burning paper, wood, and the like in the incinerator 200 are not harmful, there is no environmental problem. In addition, since the route through which the garbage passes and the route through which the plastic passes are separated, there is an advantage in that moisture and the like contained in the garbage do not touch the plastic and the like, and the plastic and the like are easily heated. is there.

The present invention is not limited to the above-described embodiment, and the number of the waste inlets formed in the incinerator may be three or more, or may be one. May be arranged.

[0090]

As described above, according to the waste detoxifying apparatus according to the first aspect of the present invention, the waste can be detoxified by multi-arc plasma, and the substances contained in the waste can be extracted and recovered. Because of the possible configuration, it is possible to treat waste at once without discriminating it into burnable garbage, non-burnable garbage, and the like. In addition to not requiring discrimination, non-burnable garbage does not need to be buried in the ground, which is very significant. In addition to simply treating the waste, the constituent substances contained in the waste can be extracted and collected, so that resource conservation can be achieved.

In the course of this treatment, harmful substances such as dioxin and harmful gases such as chlorine gas are included.
Since no ash or smoke is emitted, the problem of environmental pollution is eliminated at once. Further, since the waste is treated by the multi-arc plasma, a large amount of carbon dioxide is not released into the atmosphere, and there is no problem of global warming.

Since it is not necessary to send a large amount of air into the furnace, the size of the apparatus can be reduced. In addition, since the multi-arc plasma can easily obtain a high temperature of several thousand degrees, it is possible to greatly reduce the cost required for treating waste.

In the case of the waste detoxifying apparatus according to the second aspect of the present invention, the organic gas generated in the process of heating the waste is guided to the plasma arc generating section and / or the burner as the heating section for combustion. With this configuration, fuel and the like can be saved, and the cost required for waste disposal can be further reduced. In particular, since the organic gas thus obtained is obtained after the low-melting substance has been recovered, it is of high quality as a fuel gas, and there is no environmental problem even if it is burned.

In the waste detoxification processing apparatus according to the third aspect of the present invention, since an axial flow screw is used as a transport section, the waste tends to come into contact with the furnace inner wall, and the waste is removed. The inner wall of the furnace is easily heated, and in this respect, fuel and the like can be saved, and the cost required for waste disposal can be further reduced.

In the waste detoxifying apparatus according to the fourth aspect of the present invention, since the stirring blade is provided on the shaft of the axial screw, the waste is sufficiently stirred in the furnace. And the waste is sufficiently heated. In this respect, fuel and the like can be saved, and the cost required for waste disposal can be further reduced.

In the case of the waste detoxifying apparatus according to claim 25 of the present invention, since the high-temperature gas is passed through the inside of the shaft of the axial screw, the entire axial screw is heated. Through this, the waste is sufficiently heated, and in this respect, fuel and the like are saved, and the cost required for the disposal of the waste can be further reduced.

In the waste detoxifying apparatus according to claim 6 of the present invention, since a processing and regenerating apparatus for processing and molding a high-temperature molten material is provided, added value as a product from waste is added. And promote resource conservation.

In the case of the waste detoxification processing apparatus according to claim 7 of the present invention, the furnace body provided with the transport section and the like is configured to be divided into a plurality of units and can be assembled. Can be selected and assembled, and it is possible to sufficiently meet a wide variety of demands regarding the type of low-temperature molten material to be extracted and recovered from waste.

In the case of the waste detoxification processing apparatus according to claim 8 of the present invention, since it is configured to be mounted on an automobile, it can be brought into a place where waste is present, and the waste is removed there. Detoxification is possible, and there is great significance in that waste transport is not required.

The waste detoxification apparatus according to the ninth and tenth aspects of the present invention has a configuration in which the waste can be detoxified by multi-arc plasma. Similar benefits are obtained. Since the heat of the incinerator is used to heat the waste, the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a view for explaining an embodiment of the present invention, and is a schematic plan view of a waste detoxification processing apparatus.

FIG. 2 is a schematic side view of the same device.

FIG. 3 is a schematic sectional view of an α portion in FIG. 1A, and FIG. 3B is a schematic side view thereof.

FIG. 4 is a partial sectional view of an axial screw of the apparatus.

FIG. 5A is a plan view of a processing and reproducing apparatus of the apparatus,
(B) is a side view thereof.

FIG. 6 is a view for explaining another embodiment of the present invention, wherein (A) is a schematic view of a waste detoxification processing apparatus,
(B) is a layout diagram of the furnace body.

7A and 7B are diagrams for explaining another embodiment of the present invention different from the above, (A) is a schematic plan view of a waste detoxification processing apparatus, and (B) is a schematic side view thereof. It is.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Furnace body 2 Conveying part 3 Burner (heating part) 4 Plasma arc generating part M1, M2 Multi-arc plasma 5 Crucible (High-temperature molten material collecting part) 51-56 Vessel (Low-temperature molten matter collecting part) 60 Pipe (Plasma arc with gas) Means leading to the generating section)

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4D004 AA03 AA28 AA46 AC05 BA05 CA03 CA12 CA14 CA15 CA24 CA27 CA28 CA29 CA43 CB04 CB05 CB26 CB34 CB36 CB45 CB50 4K001 AA02 AA09 AA10 AA14 BA22 EA05 FA12 GA16 GB01 GB02 GB

Claims (10)

[Claims] 1. A cylindrical furnace body, a transport section for transporting waste put in the furnace body in a longitudinal direction of the furnace body, a heating section for heating waste in a transport process, and the waste section A low-temperature molten material recovery unit that recovers a low-temperature molten material obtained by dissolving the constituent materials of the product, a plasma arc generation unit that completely melts the heated waste by the heat generated by the multi-arc plasma, A high-temperature molten material recovery unit that recovers the high-temperature molten material obtained by complete melting, and a plasma arc generation unit that detoxifies the gas generated in the furnace during the heating of the waste by multi-arc plasma The plasma arc generator generates multi-arc plasma between the tips of the plurality of electrodes by applying a voltage to the plurality of electrodes arranged such that the tips are close to each other. Configuration Waste detoxification equipment characterized by the fact that: 2. The waste detoxification processing apparatus according to claim 1, wherein the organic gas generated in the process of heating the waste is guided to a plasma arc generation unit and / or a burner as a heating unit and burned. A waste detoxification treatment apparatus characterized in that: 3. The waste detoxification processing apparatus according to claim 1, wherein the transport unit is disposed in the furnace and connected to an axial screw that sends out waste and an axial screw. A waste detoxification processing apparatus comprising a motor and a motor. 4. The waste detoxifying apparatus according to claim 3, wherein the transport unit is disposed between a spirally formed blade and a pitch of the blade around an axis of the axial screw. And a stirrer for stirring the waste in the furnace is provided. 5. The waste detoxification processing apparatus according to claim 4, wherein the transporting unit has a cylindrical shape as a shaft core of the axial screw, and a high-temperature gas is passed through the cylindrical portion. A waste detoxification processing apparatus characterized by the following. 6. The waste detoxification processing apparatus according to claim 1, wherein the high-temperature melt is disposed around a high-temperature melt recovery unit and is converted into a processing mold. A waste detoxification processing apparatus comprising a processing and reproduction apparatus for casting and molding for reproduction. 7. The waste detoxification processing apparatus according to claim 1, wherein the furnace body provided with the transport unit is divided into a plurality of units and can be assembled. Waste detoxification equipment. 8. The waste detoxifying apparatus according to claim 1, wherein the apparatus is mounted on an automobile. 9. A multi-arc furnace for generating a multi-arc plasma between the tips of a plurality of electrodes by applying a voltage to a plurality of electrodes arranged such that the tips are close to each other, and incinerating waste. An incinerator and another waste that is disposed inside the incinerator so as to be heated by the incinerator heat and that is not suitable for incineration through a waste inlet formed in the wall of the incinerator After flowing through the waste arc pipe, and a pipe for guiding gas generated in the pipe in the process of passing another waste through the waste arc pipe to the multi-arc furnace. A waste detoxification processing apparatus characterized by the above-mentioned. 10. The waste detoxification processing apparatus according to claim 9, wherein a plurality of waste input ports and waste distribution pipes are provided.