JP2011131127A - Low temperature magnetic decomposition treatment apparatus for waste organic matter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and apparatus for decomposing a harmful chemical substance (containing a material contaminated therewith) and waste organic matter for the purpose of detoxifying the harmful chemical substance such as PCB or dioxine and a contaminated material (e.g., contaminated clothing or the like) by low temperature magnetic decomposition using the waste organic matter. <P>SOLUTION: The ground material of the waste organic matter and the harmful chemical substance are mixed and magnetic air is brought into contact with the resulting mixture to house the mixture in a treatment tank. Magnetic air is brought into contact with this mixture to subject the mixture to decomposition treatment by magnetic air. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a waste low-temperature magnetic decomposition treatment method and apparatus for the purpose of low-temperature decomposition treatment of organic substances containing harmful chemical substances with magnetized air.

  Conventionally, there have been several proposals for low-temperature magnetic decomposition treatment of waste organic matter in patent gazettes, etc., and there are some devices that have been put to practical use. Not reached. In addition, in the treatment of toxic chemicals such as aromatic chlorine compounds, especially highly toxic PCBs and dioxins, incineration at ultra-high temperatures (for example, 1000 ° C. or higher) is known, and has recently been activated by electricity, magnetism, etc. There are also proposals to use hot water vapor or spray waste water in a chamber heated to 600 ° C. or higher.

  Alternatively, a decomposition method has been proposed in which an object to be treated containing dioxin and sulfur are reacted in hot water, and further, a treatment method (temperature 800 ° C.) for selectively heating chemical substances by irradiating harmful substances with electromagnetic waves. ˜1150 ° C. heating) has been proposed.

JP 2004-317087 A JP 2004-73938 A JP 2006-333986 A JP 2001-254929 A JP 2005-168573 A

  Conventionally, there are many proposals for the treatment of hazardous waste as follows. For example, a method of using superheated steam (Patent Document 1), a method of spraying into a heated chamber (Patent Document 2), or a method of adding sulfur to an object to be treated and reacting in hot water (Patent Document 3), Is a method of irradiating electromagnetic waves (Patent Documents 4 and 5).

  In the above prior art, if it is necessary to continuously add a treatment (or operation) for any treatment, and the use temperature is 600 ° C. or higher, and the refractory furnace or the refractory handling is only an essential requirement. However, there were many problems such as requiring a large running cost.

  The present invention solves the above-mentioned conventional problems by enabling simultaneous low-temperature magnetic decomposition treatment of waste organic substances and harmful chemical substances with extremely low running costs by means of a device devised as a waste organic substance treatment apparatus.

  For example, in the case of disposal of waste organic substances including PCB or dioxin, the object to be treated is roughly crushed or pulverized, and stored in a treatment tank as it is, and is automatically decomposed by supplying magnetized air. Further, the liquid such as PCB given in the separated state is mixed with the pulverized waste organic matter or organic waste that is small like sawdust, and then accommodated in the treatment tank and decomposed. In the above, PCB and the like require that the processing apparatus be handled in a closed state due to the toxic relationship, but the main point is that the magnetized air is effectively brought into contact with harmful organic substances and the temperature generated by the heat of chemical decomposition (for example, (250 ° C. to 400 ° C.) to promote decomposition. According to the results of the experiment, the maximum temperature in the treatment tank (the center of the ash) was 423 ° C., but this temperature is due to accumulation of decomposition heat, and there is no risk of further increase. Therefore, there is no risk of reaching the ignition point (the ignition point of wood or the like is 500 ° C.) and it is extremely safe. As for the magnetized air, air that has passed through a magnetic field of 0.4 Tesla (4000 Gauss) or more enters the treatment tank and contacts the workpiece to be magnetically decomposed. In this case, it is considered that the object to be processed in the processing tank is heated at a lower portion to 300 ° C. to 400 ° C. by decomposition heat, and the lower surface of the object to be processed in the tank receives radiant heat from ash. Therefore, magnetized air, a predetermined temperature (300 ° C to 400 ° C), and radiant heat (or light) act synergistically to accelerate decomposition of general waste organic matter and PCB, benzene and other compounds having a benzene nucleus. It is thought to do.

  In the above, in the case of continuous processing, it is estimated that the magnetized air, a temperature of 300 ° C. to 400 ° C., and radiant heat act in a stable state. However, at the "start" when there is no temperature and no light, the decomposition is started simply by providing means for promoting the suction of magnetized air, so the temperature, radiant heat and light contribute to the improvement of the decomposition efficiency. Can be estimated.

  As the magnetized air inhalation promoting means, for example, paper or the like is burned in a lower part (for example, an ash chamber) of an object to be processed, and an upward air flow is generated to inhale magnetized air. In this case, it is necessary for the amount of combustible material to continue combustion for the time (for example, 2-5 minutes) which produces an updraft. Since the above is performed in the lower part of the closed treatment tank, combustion may not be continued due to lack of oxygen. In such a case, once the decomposition starts, the incombustible residue is magnetically decomposed. There is no hindrance to continuation. If the organic matter is not added after the decomposition has continued for more than one day, the decomposition will be interrupted, but the heated ash will remain warm for a while (5-6 days). It was observed that decomposition started automatically.

The treatment time varies depending on the material and size of the object to be treated, but it is 1 to 2 after starting depending on the balance between generation of decomposition heat and consumption (evaporation during preheating, exhaustion with exhaust, consumption for decomposition, etc.). After a lapse of time, stable steady operation is achieved. Therefore, after 1 to 2 hours have elapsed since the start, stable decomposition can be performed as long as the post-processed object remains continuously. Introduction of the object to be processed is considered also continuously charged addressed throughput, substantially, to the addressed half (e.g. capacity 2m ³ of treatment tank, 1 m ³ destined added each time it is 1 m ³ process Input) is preferable. For example, while the lower half is being disassembled, the upper half is automatically pretreated, such as by drying and contact with magnetized air.

  In other words, the object to be treated with a lot of moisture is dried as the exhaust gas rises and also comes into contact with the magnetized air, so that the object to be treated is easily subjected to the decomposition action, and the subsequent decomposition efficiency is improved.

  As described above, the object to be processed is reliably processed from the lower side thereof (FIG. 4B). That is, the lower surface of the object to be processed is processed into a spherical arc shape (bridge), and the process of lowering the pressure by the pressure of the upper object to be processed and returning to the horizontal state is repeated, and the entire surface is processed on average. That is, the lower surface of the object to be processed was initially in the O position, but as the process proceeds, it is assumed that the position changes to the P position and returns to the O position again due to the pressure or agitation of the input object to be processed. That is, it is considered to be caused by a lower pressure action due to the weight of the object to be processed when the object is agitated in the upper part or the object to be processed is charged in order to return to the O position. In the above, when the object to be processed is small (for example, 5 cm or less), a natural descent due only to the self-weight action of the object to be processed can be considered without applying external force such as stirring.

According to the method of the present invention, there is an effect that general waste organic substances (for example, wood, paper, synthetic resin, etc.) and 1,2,3,4-tetrachlorobenzene or PCB can be easily decomposed without using thermal power. . According to the apparatus of the present invention, there is an effect that chemical decomposition can be automatically performed with almost no running cost in a sealed state by simply adding general waste organic substances and 1,2,3,4-tetrachlorobenzene or PCB. Also, according to the apparatus of the present invention, there is an effect that even if a workpiece to be processed other than those described above is input, it can be automatically disassembled without requiring any manual operation and with almost no running cost. Further, since the chemical decomposition does not depend on combustion, the calorific value is stable at a certain upper limit (for example, about 400 ° C.) and does not change even if the treatment is continued, and the exhaust gas is H ₂ O, CO, CO ₂ , H ₂ , N ₂ , O _2, etc., which has the effect of significantly reducing the amount of CO ₂ generated compared to the combustion treatment.

The block diagram which shows the Example of the method of this invention. The front view which abbreviate | omitted a part of Example of the apparatus of this invention and removed the side wall. The top view which abbreviate | omitted a part similarly. (A) The front view which abbreviate | omitted a part of crushing apparatus similarly, (b) The explanatory drawing of the bridge | crosslinking in the decomposition process, and its recovery | restoration. Similarly the plane enlarged view which abbreviate | omitted a part of crushing apparatus. The front view which abbreviate | omitted a part of other Example which similarly supplies a to-be-processed object. Explanatory drawing which abbreviate | omitted a part of exhaust processing apparatus similarly. (A) Structural formula of dioxin, (b) Structural formula of PCB, (c) Structural formula of 1,2,3,4-tetrachlorobenzene.

This invention mainly contains waste organic substances containing harmful aromatic compounds in a sealed treatment tank, supplies magnetized air in contact with the lower side of the waste organic substances, decomposes them and renders them harmless, and inorganic residues (Ash). That is, other than the ash that has become a residue, it becomes moisture and gas (for example, CO ₂ , H ₂ O, H ₂ , O ₂ , N ₂ ) and is rendered harmless. In the above, nitrogen oxides become odors, which are removed in the exhaust purification process, and the exhaust gas becomes water vapor (CO ₂ , H ₂ O, N _2, etc.) and no harmful substances are present.

In the treatment method according to the present invention, magnetized air is brought into contact with waste organic matter (including harmful substances), radiant heat and other light rays are radiated, and heated by decomposition heat (for example, 250 ° C. to 400 ° C.). The temperature of the heating varies depending on the location, but usually the central lower surface of the waste organic matter in the treatment tank is most heated (or the center of the ash), exposed to magnetized air, and also receives radiant heat. Efficiently chemically decomposed from the center of the bottom surface to reach the periphery. In this case, since the treatment tank is closed, the magnetized air comes into contact with the lower surface and the lower surface of the waste organic matter almost evenly and starts radical decomposition. In addition, since decomposition heat is generated by radical decomposition, it is estimated that the lower side portion of the waste organic matter in the treatment tank is in contact with flowing magnetized air in a temperature atmosphere of 300 ° C to 400 ° C. Therefore, it has been confirmed that the organic matter can be efficiently decomposed (for example, the waste organic matter is about 1 m ³ in ^{3 to} 4 hours in a tank having a flat area of 1 m ² and a height of 1.5 m). In the above, the size of the waste organic substance was 5 cm or more, but it is estimated that the decomposition efficiency is further improved if the average size is 5 cm or less. For example, if it is 2 cm or less, 1 m ³ can be decomposed in 2 to 3 hours.

  This is because the contact frequency between the waste organic matter and the magnetized air increases as the size decreases. In addition, it is considered that chemical substances containing harmful substances such as PCB or dioxin are converted to chlorobenzene by the action of magnetized air and then become benzene. According to the results of the experiment using benzene tetrachloride, the concentration of 56,000 mg / L is only 0.00042 mg / L in the exhaust gas after treatment and 0.048 mg / L in the waste water. The concentration in the residue was less than 0.3 mg / L.

  Next, the apparatus of the present invention is provided with a plurality of upper and lower stages of magnetized air blowers that have passed a strong magnetic field to the inside and center of a square-tubular triple wall processing tank, and the center lower part is an ash chamber, and the upper part of the ash chamber is Communicate as a processing chamber. The bases of the blowout bottles are respectively communicated with the magnetic air chamber. A rotating shaft hangs down from the upper part of the central portion of the processing chamber, a stirring blade is attached to the lower end thereof, and the upper part is connected to a rotating device. The upper part of the treatment tank is sealed with a cover plate, and a guide cylinder for introducing an object to be processed (waste organic matter) is provided on one side upper part of the treatment tank, and the upper part of the guide cylinder is continuously provided below the upper end of the screw conveyor. It is. An upper side of the lower end of the screw conveyor is connected to a discharge cylinder from a crusher, and a toxic chemical substance supply device is connected to the crusher. The above is an example of an apparatus for loading an object to be processed, and other means may be used.

  A drainage pipe (also serving as an exhaust pipe) is connected to the lower part of the exhaust gas purification device of the treatment tank, and the drainage pipe is connected to the exhaust water tank. The exhaust water is treated in the exhaust water tank (for example, microbial treatment), and the exhaust gas is sucked into the septic tank and purified and discharged from the chimney to the outside. The purified water is discharged into sewage. As a result of the experiment, there are almost no harmful substances (for example, PCB) in the waste water, but other organic dirt is detoxified by microbial treatment. Although not harmful, it is preferable to use a decoloring agent when the water is colored.

  Since the waste water and exhaust are harmless, there is no problem in environmental pollution, but colored waste water is easily mistaken for contaminated water. Since the said crusher grind | pulverizes the waste organic substance of various magnitude | sizes to a fixed size (for example, 5 cm or less), it can improve processing efficiency. Since the treatment of the present invention is chemical decomposition using magnetized air, basically, the contact of magnetized air evenly with the outside of the object to be decomposed leads to the improvement of the decomposition efficiency.

  Next, since it is a requirement for the entire process to be sealed in the treatment of contaminants such as PCB or dioxin, it is preferable that the crusher and the treatment tank pass through a sealed path. Therefore, if a harmful chemical substance (for example, PCB) is introduced at the time of crushing, mixing is performed by agitation, so that it is not necessary to specifically combine the mixing measures.

  In the above description, the treatment of harmful chemical substances and contaminants thereof has been mainly described. However, it goes without saying that the method and apparatus of the present invention can easily decompose general waste organic substances.

  In addition, it has been described that the processing efficiency is improved if the workpiece is pulverized. However, it is described that the magnetized air efficiently and uniformly contacts the outer periphery of the workpiece, and the size is limited. For example, when it becomes powdery (for example, 0.1 mm to 1 mm), it is difficult to pass magnetized air. Therefore, in the case of a general material (wood, paper, plastic, etc.), it is crushed to about 0 cm to 5 cm, but preferably 0.5 cm to 3.0 cm.

  An embodiment of the present invention will be described with reference to FIG. 1. 50 kg of waste organic matter (for example, household waste, moisture 80% to 90%) is put on a crusher and crushed to a size of 0.5 cm to 3.0 cm. To this, 50 kg of sawdust is added, and 300 g of 1,2,3,4-tetrachlorobenzene is added and uniformly stirred and mixed. 100 kg of the mixture was accommodated in a processing apparatus, and air that passed through a magnetic field of a permanent magnet of 0.4 Tesla (4000 Gauss) or more (for example, up to 1 Tesla (10,000 Gauss)) was fed by natural suction or forced air feeding. . It was found that the decomposition of almost the entire amount was completed after 5 hours in the above state. In the above, the exhaust purification was sprinkling (for example, 10 liters per minute), and the wastewater was discharged as it was because there was no odor. None of the smoke, waste water, and residual ash in the above was 1,2,3,4-tetrachlorobenzene, so it was recognized that it was decomposed.

  The magnetized air in the above is supplied to the pretreatment part through the decomposition part in the treatment tank as outside air passes through a strong magnetic field and becomes magnetized air. Normally, the outside air flows in due to the differential pressure between the outside air pressure and the inside air pressure in the treatment tank. However, if it is difficult to flow in the required amount only by the differential pressure, the required differential pressure may be created by, for example, starting a fan interposed in the smoke chamber base, and magnetized air may be forced in. This is because it is necessary to cause radical decomposition (chemical decomposition) with a smaller amount of oxygen than during combustion.

  In the above, the outside air, the strong magnetic field, the magnetized air chamber, and the air supply pipe communicate with each other through a valve, and the valve is always opened with a constant opening degree (the valve allows the magnetization to be performed). Adjust the amount of inhaled air).

  The supply of magnetized air requires the amount of magnetized air necessary for chemical decomposition (especially radical oxygen), and it is preferable to inhale with exhaust, but there is a possibility that the blown soot of magnetized air may be clogged. Or it is preferable to carry out forced air supply (by a fan) suitably for cleaning. In this case, if the supply of oxygen is more than necessary, it may cause combustion, so care must be taken. In the future, the air supply amount will be digitized and automatically controlled.

[Experimental Example 1]
Next, the treatment of 1,2,3,4-tetrachlorobenzene-contaminated garments and the like was tested in the following manner, and the following results were obtained.

1. Materials for demonstration experiment Plastic protective clothing (30): 1.6kg
Plastic boots (25 pairs) Plastic masks (20): 16.7kg
Plastic gloves (20 pairs): 9.7kg
Total: 28.0kg
Cedar sawdust (decomposition aid): 9.7kg
2. PCB alternative reference material (1,2,3,4-tetrachlorobenzene)
Concentration: 56,000 (mg / L) Application amount: 140 mL
1,2,3,4-tetrachlorobenzene amount: 7,800 mg
3. Analysis of Demonstration Experiment Sample (1) Sample of decomposition residue All decomposition residues in the decomposition apparatus were taken out and weighed (2,600 g), and 5.2221 g thereof was analyzed.

(2) Exhaust gas samples All exhaust gases discharged during the entire demonstration experiment were collected. The collection of waste gas was based on “Measurement method of dioxins in exhaust gas (JIS K0311)”.

Total exhaust gas emissions: 360 L (0.36 m ³ )
(3) Drainage (Circulating Water) Sample After completion of the demonstration experiment, the circulating water device was operated for 2 hours, and the circulated water that was made uniform was taken out and the total volume was measured (145 L). Among them, 9.915 L was analyzed.

4). Results of demonstration experiment (as shown in Table 1)
Analyzer internal temperature: 423 ° C. (MAX)

An embodiment of the apparatus of the present invention will be described. This embodiment is a processing apparatus mainly for the purpose of magnetically decomposing hazardous chemical substances and hazardous chemical contaminants, including a hazardous chemical substance supply apparatus, a waste organic matter pretreatment apparatus, a transfer apparatus, and a magnetic decomposition process. It consists of a combination of equipment, exhaust and wastewater treatment equipment.

Since all known waste organic matter processing apparatuses are premised on containing no harmful chemical substances, the point of response to the control of the harmful chemical substances is fundamentally different. That is, in the case of disposal of waste organic substances containing hazardous chemical substances, since it is in principle a hermetically sealed process, all of the integrated work must be performed during the blockage for the input and distribution of materials and the process. Therefore, it is a completely sealed type from the introduction of materials to exhaust drainage.

  In the case of processing PCB contaminants or dioxin contaminants, the object can be achieved by chopping the contaminants and storing them in a treatment tank as they are. For example, when given as a liquid, such as PCB alone, the PCB must be mixed with, for example, sawdust to treat the sawdust. Unlike the combustion treatment, it is difficult to decompose the liquid, so it is preferable to treat the PCB by adsorbing it to a solid material. Therefore, when pulverizing the waste organic matter, it is preferable to handle it in a state in which PCB (liquid) is mixed and a hazardous chemical substance adheres to the waste organic matter.

  The ratio (quantitative) between the hazardous chemical substance and the waste organic matter in the above description cannot be determined unconditionally because it varies depending on the respective characteristics. However, it is preferable that it adheres to the outer periphery of the organic waste and comes into contact with the magnetized air. In implementation, it depends on the type and state of the hazardous chemical substance and the form of the organic substance, so it is preferable to determine each by experiment.

  An embodiment of the apparatus of the present invention will be described with reference to FIGS. Magnetized air chambers 2, 2 are provided on the lower left and right sides of the rectangular tubular processing tank 1, and a funnel-shaped processing chamber is provided inside the air chambers 2, 2. The processing chamber is sequentially connected from the bottom plate 3 side of the processing tank 1 upward to the ash reservoir 4, the decomposition unit 5, and the pretreatment unit 6, but each unit has no compartment. The name is based on an internal decomposition process. The magnetized air supply pipes 8, 8, 9, 9 are provided at the left and right and in the center in the upper and lower multistages and are installed horizontally at the portion subjected to the decomposition treatment action. The air supply pipes 8 and 8 supply the magnetized air of the magnetized air chambers 2 and 2 to the decomposition processing portion, and the air supply pipes 9 and 9 rise from the base tubes 10 and 10 and branch to the decomposition processing portion. To the air supply pipes 9 and 9. By providing the air supply pipes 8 and 9 inside and outside as described above, it is possible to equalize the air supply and improve the decomposition efficiency.

  Since the supply air in the above is basically automatic pressure difference suction, magnetized air is supplied in accordance with the degree of decompression of each part of the workpiece. The treatment tank 1 is provided with a partition plate 11 with a predetermined interval and is formed as a double wall. In the processing section, guide plates 12 and 12 are provided inside the partition plates 11 and 11, and the treatment tank 1 A circulation path gap 13 is provided for lowering a part of the air on the inner upper side. Further, a guide plate 12a is provided inside the guide plate 12 so as to allow suction from below.

  As described above, the partition plate 11 inside the treatment tank 1 is provided to be a double wall, and the guide plate 12 inside the partition plate 11 is provided with a gap 13 to ensure a gas descending path, The guide plate 12a is provided to facilitate suction from the lower side (near the stirring blade). By the guide plates 12 and 12a, the gas in the vicinity of the stirring blade is caused to flow (arrow 45), then lowered (arrow 46) to be discharged onto the bottom plate 3, and partly lifted (arrow 44). A part of the air is exhausted from the drain pipe 29. The drainage pipe 29 also discharges exhaust gas and drainage of exhaust processing described separately. In the above, even if water droplets may adhere to the inner and outer walls of the guide plate 12, they will flow down and drain from the drain pipe.

  In the above, the strong magnetic field has a permanent magnet installed in the magnet box 80 and controls the intake air amount by inserting a valve in the intake pipe or the exhaust pipe of the magnet box 80. In the above description, the suction amount varies depending on the pressure difference between the processing chamber and the outside air, but when the chemical decomposition is made steady, the variation in the atmospheric pressure is reduced, so the suction amount is controlled by the opening of the valve. become.

  Since the decomposition treatment according to the present invention is magnetic decomposition of organic matter, the heat of decomposition is 300 ° C. to 400 ° C. (according to actual measurement, the maximum temperature was 423 ° C.). The temperature of the outer wall 1 of the treatment tank 1 is about 40 ° C to 60 ° C, so there is no risk of burns even if touched by the human body. There is no fear of doing. A lid plate 7 is fixed to the upper portion of the processing tank 1, and a rotary shaft 14 is rotatably supported at the center of the lid plate 7, and an upper end portion of the rotary shaft 14 is connected to the shaft of the motor 15. A stirring blade 17 is fixed to the lower end portion. A processing product charging hopper 18 is installed on the upper side wall of the processing tank 1, and a discharge cylinder 20 below the upper end of the cylindrical conveyor 19 is airtightly connected to the upper end of the charging hopper 18.

  A receiving hopper 21 is installed on the lower end side of the cylindrical conveyor 19 (FIG. 4). The lower end of the connecting cylinder 22 is connected to the upper portion of the receiving hopper 21, and the upper end of the connecting cylinder 22 is sent out from the crusher 23. The cylinder 24 is connected. An exhaust duct 25 communicating with the exhaust holes 25a, 25a is provided in the upper part of the processing tank 1, and one end of the exhaust duct 25 is connected to the upper part of the processing tank 1, and the other end of the exhaust duct 25 is a shower. A connection opening is formed in the box 26. A shower pipe 27 is installed on the inner upper part of the shower box 26, and the shower pipe 27 is connected to a water supply pipe 28 (FIG. 7). In addition, a base end of a drain pipe 29 is connected to the lower portion of the shower box 26, and the tip of the drain pipe 29 opens to one side of the water tank 30 (FIGS. 2 and 3).

  An exhaust pipe 31 is opened on the other upper side of the water tank 30. The exhaust pipe 31 is connected to a discharge pipe 33 through a filtration tank 32, and the discharge pipe 33 is connected to a chimney 35 through a fan 34. (Fig. 2).

  In the above-described embodiment, the waste organic matter is introduced as indicated by an arrow 36 by the chute 81 in FIG. 4, and the crusher 23 is started and roughly crushed (5 cm or less). , And enters the cylindrical conveyor 19 through the receiving hopper 21. When the cylindrical conveyor 19 is started, it is carried as indicated by arrows 35 and 38 (FIGS. 2 and 4) and passes through the discharge cylinder 20 to the charging hopper 18. Enter (FIG. 2) and are fed into the treatment tank 1. In this case, since the waste organic matter is pulverized, it is supplied as indicated by arrows 39 and 40 without applying external force. In this case, since the stirring blade 17 is rotating slowly (for example, 30 times or less per minute), the waste organic matter is accommodated in the treatment tank 1 at a substantially uniform height.

In the above, since there is ash in the ash reservoir 4 and it is red hot (due to decomposition heat), an upward air flow as indicated by arrows 41 and 41 is generated (FIGS. 2 and 4 (b)). Magnetized air flows from 8 and 9 as indicated by arrows 42 and 43 and then rises with the rising gas. On the other hand, ascending air flow arrow 41 is generated in the ash reservoir, gas is sucked from the lower part of gap 13 as indicated by arrows 44 and 44, and accordingly, the air in the processing tank is drawn from the upper gap into the arrow. Inhaled as indicated by 45 and 45. Accordingly, a part of the magnetized air circulates as indicated by arrows 45, 46, and 44. By circulating in this way, the magnetized air and the waste organic matter come into efficient contact with each other, so that the entire treated product can be efficiently decomposed. For example, in a treatment tank having a flat area of 1 m ² and a depth of 1.5 m, magnetized air was sucked and circulated as described above, and 1 m ³ of waste organic matter was decomposed in ^{3 to} 4 hours. The waste organic matter in this case was a mixture of equal amounts of household waste (water 80% or more) and house waste (water 20% or less). The waste in the above was 80% or more of one water content and 20% or less of the other water content. In handling in the embodiment of the present invention, the water content of the waste organic matter is preferably 40% to 50%. The decomposition efficiency did not change even when 1,2,3,4-tetrachlorobenzene was added. As described above, a part of the exhaust gas circulates, while the other part rises and enters the exhaust duct or is discharged by the drain pipe 29 together with the flowing water.

  The gas generated as described above passes through the duct as indicated by an arrow 47 in FIG. 7, enters the shower box 26 as indicated by an arrow 48, and is washed by a water shower, and then, as indicated by arrows 49 and 49a, the water tank. Enter 30. The gas component is sucked up as indicated by an arrow 50 (by the fan 34), passes through a filtration tank 32 filled with activated carbon as indicated by an arrow 51, and is purified, as shown by arrows 52 and 53. 35 is discharged (FIG. 2).

According to the treatment tank 1, waste organic substances are chemically decomposed and become almost molecules and moisture, so there are no harmful substances (for example, H ₂ , H ₂ O, O ₂ , CO ₂ , N _2, etc.).

  Even if there are harmful chemical substances such as PCBs or other benzene nuclei in the treated product, they will be chemically decomposed (provided with 1,2,3,4-tetrachlorobenzene), so the harmful chemical substances remain. (Table 1).

  As for the presence or absence of the harmful chemical substances, 1, 2, 3, 4 in the place where the contaminants coated with 1,2,3,4-tetrachlorobenzene are treated with the above-mentioned apparatus, in the smoke, waste water and ash. -No other harmful chemicals remained, as well as benzene tetrachloride.

  An embodiment in which waste organic substances are pulverized and harmful chemical substances (for example, PCB) are mixed in the apparatus of the present invention will be described with reference to FIG. The lower part of the hopper 70 is connected to the upper side wall of the processing tank 1, the lower end side of the connecting cylinder 72 of the crusher 71 is connected to the upper part of the hopper 70, and the hopper 73 for charging the waste organic matter to the upper part of the crusher 71 is provided. Provide. A tank 54 for storing a chemical solution (for example, PCB) is installed in the vicinity of the crusher 71, and a lower side wall of the tank 54 and a lower side wall of the hopper 73 are connected by a liquid feeding pipe 55. Inside the lower part of the crusher 71, crushing rollers 56, 56 with cutting blades are installed in parallel.

  When the crushing rollers 56 and 56 are rotated in the directions indicated by arrows 57 and 57, the waste organic matter in the hopper 73 is sequentially crushed and loaded into the treatment tank 1 through the hopper 70 of the connecting cylinder 72 as indicated by an arrow 58. Entered. In the above embodiment, when the valve of the liquid feeding pipe 55 is opened, the harmful chemical substance in the tank 54 enters the hopper 73 as indicated by an arrow 79 and is mixed into the waste organic matter, but the waste organic matter is crushed and mixed. And adhere. Therefore, harmful chemical substances in the tank 54 adhere to the outside of the waste organic matter destined for the drop amount. In this case, the amount of the harmful chemical substance fed is adjusted by a valve of the liquid feeding pipe 55. In this way, the hazardous chemical substance is adhered to the outside of the waste organic substance without excess or deficiency, so that the harmful chemical substance is efficiently decomposed together with the waste organic substance.

  Depending on the shape and density of the cutting blades of the crushing rollers 56, 56, the size of the organic crushed pieces is determined. For example, in the case of a size of 0.5 cm to 2.0 cm, it was recognized that an organic substance having a size of 2.0 cm or more decomposes with an efficiency of more than twice that of a randomly placed organic substance. . Further, when the waste organic matter (object to be treated) is relatively small, the decomposition is easy and the target decomposition can be completed efficiently.

  Further, when waste organic matter is not charged into the treatment tank 1, the partition plate 60 interposed at the base of the hopper 70 is lowered and blocked as indicated by arrow 59, so that the exhaust in the treatment tank 1 is substantially reduced. There is very little risk of leaking outside.

  When waste organic matter is not accommodated, the hopper 73 is covered with a cover plate 61 and sealed.

  In the above-described embodiment, an example of the case where the hazardous chemical substance is mixed with the waste organic substance has been described. However, the purpose is to mix the waste organic substance and the hazardous chemical substance in a sealed state, and this structure is specified. It is not a thing. In addition, organic substances contaminated with organic chemicals can be similarly decomposed. In the above-mentioned execution apparatus, the stirring blade is fixed to the lower end portion of the vertical rotating shaft, but the main point is to equalize the object to be processed and to prevent crosslinking, and to the specific structure of the stirring blade. It is not limited. For example, a workpiece having a size of 5 cm or less is automatically equalized at the time of accommodation, so that a stirring blade is often unnecessary.

DESCRIPTION OF SYMBOLS 1 Processing tank 2 Magnetized air chamber 3 Bottom plate 4 Ash storage part 5 Decomposition part 6 Pretreatment part 7 Cover plate 8 Air supply pipe 9 Air supply pipe 10 Base pipe 11 Separator 12 Guide plate 13 Gap 14 Rotating shaft 15 Motor 17 Stirring blade 18 Input hopper 19 Cylindrical conveyor 20 Discharge tube 21 Receiving hopper 22 Connecting tube 23 Crusher 24 Feed tube 25 Exhaust duct 26 Shower box 27 Sprinkling pipe 28 Water supply pipe 29 Drain pipe 30 Water tank 31 Exhaust pipe 32 Filtration tank 33 Discharge pipe 34 Fan 35 Chimney 51 Crusher 52 Connecting cylinder 53 Hopper 54 Tank 55 Liquid feed pipe 56 Crushing roller 70 Hopper 73 Hopper

The present invention, an organic material containing hazardous chemicals, to the low-temperature magnetic decomposition treatment MakotoSo location of waste for the purpose of low temperature decomposition treatment by magnetization air.

In addition, it has been described that the processing efficiency is improved if the workpiece is pulverized. However, it is described that the magnetized air efficiently and uniformly contacts the outer periphery of the workpiece, and the size is limited. For example, when it becomes powdery (for example, 0.1 mm to 1 mm), it is difficult to pass magnetized air. Therefore, in the case of general materials (wood, paper, plastic, etc.), 0 . Although it is crushed to about 1 cm to 5 cm, it is preferably 0.5 cm to 3.0 cm.

Claims (9)

  Waste organic matter or waste organic matter and a to-be-treated material that has been mixed with harmful chemical substances are placed in a treatment tank, and magnetized air that has passed a strong magnetic field is sprayed on the treated matter or waste organic matter, or magnetized air is brought into contact flow. A low-temperature magnetic decomposition method for hazardous chemicals and waste organics characterized by sequential decomposition.   A processing object obtained by stirring and mixing a pulverized waste organic substance and a hazardous chemical substance or a waste organic substance contaminated with a hazardous chemical substance is contained in a processing tank, and magnetized air that has passed a strong magnetic field is applied to the object to be processed or the waste organic substance. A method for low-temperature magnetic decomposition of harmful chemical substances and waste organic substances, characterized by sequential decomposition by spraying or flowing magnetized air in contact.   A processing object obtained by stirring and mixing a pulverized waste organic substance and a hazardous chemical substance or a waste organic substance contaminated with a hazardous chemical substance is contained in a processing tank, and magnetized air that has passed a strong magnetic field is applied to the object to be processed or the waste organic substance. A method for low-temperature magnetic decomposition of harmful chemical substances and waste organic substances, characterized by spraying or causing magnetized air to contact and flow, convection of the magnetized air, and repeatedly bringing magnetized air into contact with an object to be treated or waste organic substances.   A processing object obtained by stirring and mixing a pulverized waste organic substance and a hazardous chemical substance or a waste organic substance contaminated with a hazardous chemical substance is contained in a processing tank, and magnetized air that has passed a strong magnetic field is applied to the object to be processed or the waste organic substance. A method for low-temperature magnetic decomposition of harmful chemical substances and waste organic substances, characterized by spraying or causing magnetized air to contact and flow, heating with decomposition heat to sequentially decompose, and purifying exhaust gas with brine.   5. The low temperature magnetism of hazardous chemical substances and waste organic substances according to any one of claims 1, 2, 3 and 4, characterized in that hazardous chemical substances are supplied at the time of crushing waste organic substances and mixed with the crushed waste organic substances. Disassembly method.   In order to allow the circulating flow of magnetized air into the processing tank, a magnetic processing chamber is provided in the processing tank by arranging a plurality of blowouts of magnetized air vertically and in a funnel shape on the left and right and inside. The ascending space is provided, the descending path is provided in the side wall, the closed supply device for the object to be processed is connected to the upper side wall of the processing tank, and the exhaust processing device is provided in the upper part of the processing tank. Waste organic matter low temperature magnetic decomposition equipment.   In the treatment tank, magnetized air blowers are arranged in multiple stages, arranged in a funnel shape on the left and right and inside, a magnetic treatment chamber is provided, and a cross-linking prevention means for the object to be treated is provided in the treatment tank. In order to enable circulation flow, an ascending space is provided in the central part, a descending path is provided in the side wall part, a closed supply device for the object to be treated is connected to the upper side wall of the processing tank, and the upper part of the processing tank is provided. A low-temperature magnetic decomposition apparatus for waste organic matter, characterized in that an exhaust treatment device is provided.   The rising space of the magnetized air is provided in the center of the processing tank, the inlet of the gas descending path at the top of the processing tank is close to the processing tank wall, and the outlet of the gas descending path is opened at the lower part of the processing tank. The low-temperature magnetic decomposition apparatus for waste organic matter according to claim 6 or 7.   The waste organic matter low-temperature magnetic decomposition apparatus according to claim 6 or 7, wherein a waste organic matter crushing apparatus is combined with a treatment tank, and a toxic chemical substance supply device is attached to the crushing apparatus.

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