JP2015178938A - Exhaust gas treating device and pyrolysis apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an exhaust gas treating device having higher combustion efficiency and inexpensive as much as possible, and a pyrolysis apparatus equipped with the exhaust gas treating device.SOLUTION: On the central axis of a heat resistant part 31, a treatment pipe 34 is embedded to provide communication between an introduction chamber 32 and a discharge chamber 33, and around the treatment pipe 34, other treatment pipes 34, 34, 34, which provide communication between the introduction chamber 32 and a discharge chamber 33, are embedded at equal intervals on the circle centered on the central axis of the heat resistant part 31 in parallel with the central axis of the heat resistant part 31. At positions on the circle, on which the other treatment pipes 34, 34, 34 are arranged, between adjacent other treatment pipes 34, 34, 34, 34, 34, 34, preferably at equal intervals, rod-like heaters 35, 35, 35 are embedded in parallel with the other treatment pipes 34, 34, 34. Both end portions of each heater 35, 35, 35 are projected outside through a ceiling and a bottom of an outer skin 30.

Description

  The present invention relates to an exhaust gas treatment device that treats generated exhaust gas, and a thermal decomposition apparatus that includes the exhaust gas treatment device and thermally decomposes an object to be treated.

  Conventionally, waste discharged from offices or households has been incinerated by small incinerators. However, incinerators such as these cannot prevent the generation of dioxins, so small incinerators are used in Japan. Not to be. On the other hand, since dioxins are difficult to generate in the thermal decomposition carried out at a temperature of 400 ° C. or lower, the apparatus can reduce the bulk of the waste to a fraction by thermally decomposing the waste in such a temperature range. Has been developed. For example, Patent Document 1 described later discloses the following thermal decomposition apparatus.

  FIG. 6 is a front sectional view of the thermal decomposition apparatus disclosed in Patent Document 1, in which 100 is a bottomed square cylindrical furnace body. The swash plates 101, 101, 101 are respectively attached to the bottom corners of the furnace body 100 to form the air chambers 102, 102 (102) having a triangular cross section made up of the bottom and peripheral surfaces of the furnace body 100 and the swash plate. In addition, a region surrounded by each of the swash plates 101, 101, 101 is a lower heat treatment chamber 110. In the furnace body 100, at a position slightly above the lower heat treatment chamber 110, an inner cylinder 130 is disposed with an appropriate gap from the inner peripheral wall of the furnace body 100, and the inside of the inner cylinder 130 is located in the upper part. The heat treatment chamber 120 is provided. The upper end of the furnace body 100 is closed by a ceiling portion, and the insertion port opened in the ceiling portion is sealed by a lid portion 140 so as to be opened and closed.

  A plurality of intake pipes 160, 160,... Each provided with a fan at the end on the intake side are attached to the outer bottom of the furnace body 100, and the end on the exhaust side of each intake pipe 160, 160,. The bottom of the furnace body 100 is protruded into the air chambers 102 and 102 (102). In the middle of these intake pipes 160, 160,..., Active processing pipes 170, 170,. The air to be sent is magnetized while passing through the active treatment pipes 170, 170,... And introduced into the air chambers 102, 102 (102). Further, valves (not shown) are respectively attached to the intake pipes 160, 160,..., And air supplied from the intake pipes 160, 160,... Into the air chambers 102, 102 (102) by opening and closing the valves. The amount can be adjusted.

  On the other hand, an upper portion of the furnace body 100 is provided with a water tank 200 in the sealed space and a bent flow path 210 configured to bring gas into contact with the water tank 200 a plurality of times, and purifies the gas discharged from the furnace body 100. A smoke purification tank is disposed, and the ceiling portion of the furnace body 100 and the smoke purification tank are communicated by a cylinder 190. The smoke tank is provided with a chimney 250, and the gas discharged from the furnace body 100 is purified by the smoke tank and then released from the chimney 250 into the atmosphere.

  In such a thermal decomposition apparatus, the lid 140 is opened, and the object to be processed is introduced from the inlet until it reaches a position having a depth of about 1/3 of the upper heat treatment chamber 120, and then the lid is opened. The part 140 is closed. Next, when the object to be processed is ignited from a crater (not shown) communicating with the lower heat treatment chamber 110 and the object to be processed starts to burn, the opening degree of each valve described above is adjusted to adjust the temperature in the furnace body 100. Is about 350 ° C. to thermally decompose the object to be processed. Thereby, the bulk of the object to be processed is reduced to about 1/10.

  On the other hand, the exhaust gas generated by the thermal decomposition of the object to be treated is introduced into the bent flow path 210 of the smoke purification tank from the cylinder 190 and comes into contact with the water stored in the water tank 200 while traveling through the bent flow path 210. It is cleaned and cooled and discharged from the chimney 250 into the atmosphere.

  However, although the exhaust gas generated by the thermal decomposition of the object to be treated has a bad odor, in the smoke purification tank described above, the exhaust gas is only brought into contact with the water in the water tank, so that the bad odor remains. It will be released into the atmosphere.

Therefore, the following exhaust gas treatment device is disclosed in Patent Document 2 described later.
FIG. 7 is a side cross-sectional view of the exhaust gas treatment device disclosed in Patent Document 2, in which 300 is a roll columnar body. The main body 300 is provided with a quadrangular prism-shaped gap. The gap on one end side of the main body 300 is formed in the heating chamber 301, and the gap on the other end side of the main body 300 is formed in the cooling chamber 302. A suction port communicating with the heating chamber 301 is opened at one end of the main body 300, and a suction pipe 303 is connected to the suction port. On the other hand, an exhaust port communicating with the cooling chamber 302 is opened at the other end of the main body 300, and the other end of an exhaust duct 304 formed by attaching an exhaust fan 305 to one end is connected to the exhaust port. By driving the exhaust fan 305, the exhaust gas introduced into the heating chamber 301 from the suction pipe 303 is discharged into the atmosphere from the exhaust duct 304 through the cooling chamber 302.

  The heating chamber 301 is made of porous alumina or mullite and has the same outer shape as the inner shape of the heating chamber 301 in order to suppress the flow of exhaust gas introduced into the heating chamber 301. A plurality of restraining plates 305, 305, 305 are internally fitted and fixed at a distance from each other in the longitudinal direction of the main body 300, and each of the restraining plates 305, 305, 305 has a plurality of rows of vent holes 306, 306,. 306, 306,..., 306, 306,... Are formed in a matrix so as to penetrate the respective suppression plates 305, 305, 305, respectively. A plurality of pairs of rod heaters 400, 400,..., 400, 400,..., 400, 400 that are arranged at different positions in the thickness direction of the suppression plates 305, 305, 305. ,..., 306, 306,... 306, 306,. 305, 305 and the top and bottom portions of the main body 300 are arranged in a manner penetrating, and a plurality of pairs arranged with different positions in the longitudinal direction of the main body 300 also between the opposing suppression plates 305, 305. Are arranged in such a manner as to penetrate through the ceiling and bottom of the main body 300 so as to have an appropriate interval in a direction orthogonal to the longitudinal direction of the main body 300.

  In such an exhaust gas treatment device, exhaust gas in the heating chamber 300 is heated by heating the suppression plates 305, 305, 305 with rod heaters 400, 400,..., 400, 400,. , And the exhaust gas that passes through the vent holes 306, 306,... Formed in the suppression plate 305 and contacts the other rod heaters 400, 400,. Burn.

JP 2008-190733 A Japanese Patent Laid-Open No. 9-280532

  However, in such a conventional exhaust gas treatment device, a plurality of restraining plates 305, 305, 305 are arranged at a distance from each other in the longitudinal direction of the main body 300, that is, in the direction orthogonal to the direction in which the exhaust gas flows. Since the exhaust gas is configured to burn, there is a problem that the temperature of the exhaust gas is lowered each time the control plates 305, 305, and 305 are passed, and the combustion efficiency of the exhaust gas is low. On the other hand, the restraint plates 305, 305, 305 and the other heaters 400, 400,... Disposed in the main body 300 are heated to burn the exhaust gas in the heating chamber 301. The structure must be excellent in heat insulation and heat resistance, and the cost required for the main body 300 is high. In addition, a large number of bar heaters 400, 400, ..., 400, 400, ..., 400, 400, ... are embedded in the respective restraining plates 305, 305, 305, and the other bar heaters 400, 400, ... are further embedded. Therefore, the cost of parts required for the heater increases.

  This invention is made | formed in view of such a situation, Comprising: Combustion efficiency is higher and provides a thermal decomposition apparatus provided with this exhaust gas treatment device which is cheap as much as possible.

  (1) In the exhaust gas treatment device according to the present invention, a plurality of pipe members for allowing the introduced exhaust gas to flow in a heat-resistant part formed by molding a heat-resistant material, and a plurality of heaters arranged in the vicinity of these pipe members It is embed | buried, and it heats the heat-resistant part and each pipe member with each heater, and is characterized by heat-treating the exhaust gas which flows through each pipe member.

  In the exhaust gas treatment device of the present invention, a heat-resistant part formed by molding a heat-resistant material such as a heat-resistant castable into an appropriate shape is provided, and a plurality of pipe members are embedded in the heat-resistant part. A plurality of heaters are also embedded in the vicinity. The exhaust gas introduced into the exhaust gas treatment device is allowed to flow through these pipe members. And a heat-resistant part and each pipe member are heated with each heater, and the exhaust gas which flows through each pipe member is heat-processed.

  In this way, the heat-resistant part and the pipe member are heated by the heater embedded in the vicinity of the pipe member in the heat-resistant part, and the exhaust gas flowing through the pipe member is heat-treated, so that the temperature of the entire pipe member is increased to a required value. Can be made. Therefore, the thermal efficiency is high and the combustion efficiency of the exhaust gas is also high. In addition, since the exhaust gas is heat treated while flowing through the pipe member, the contact area between the pipe member heated to the required value and the exhaust gas is wide, which also improves the combustion efficiency of the exhaust gas. Is done. Moreover, since the exhaust gas introduced into the exhaust gas treatment device is dispersed and heat-treated by the plurality of pipe members, the exhaust gas introduced into the exhaust gas treatment device can be heat-treated evenly. On the other hand, the exhaust gas treatment device according to the present invention is configured by embedding each pipe member and each heater in the heat-resistant portion as described above, and therefore has a small number of parts and a relatively simple configuration. Therefore, the manufacturing cost of the exhaust gas treatment device can be made as low as possible.

  (2) In the exhaust gas treatment device according to the present invention, the heat-resistant part is formed in a columnar shape, and a plurality of rod-shaped heaters and the pipe members are alternately arranged around the central axis of the heat-resistant part. Features.

  In the exhaust gas treatment device of the present invention, the heat-resistant part is formed in a columnar shape. A plurality of rod-shaped heaters and the respective pipe members are alternately arranged around the central axis of the heat-resistant portion. Thus, by surrounding the central part of the heat-resistant part with the rod-shaped heater, the area outside each heater of the heat-resistant part functions as a heat insulating material, so that the central part of the heat-resistant part is efficiently heated to the required value. be able to. In addition, each tube member is alternately arranged with each heater, and each tube member is efficiently heated without unevenness by each heater. On the other hand, since the inside of the tube member is hollow, the tube member itself functions as a heat insulating member, and heat is prevented from being released outward from the central portion of the heat-resistant portion, and the heat of the central portion of the heat-resistant portion is reduced. It can be used efficiently.

  (3) The exhaust gas treatment device according to the present invention has a dimension between each tube member or each heater and the peripheral surface of the heat-resistant part from a dimension between the central axis of the heat-resistant part and each pipe member or each heater. It is characterized by being larger.

  In the exhaust gas treatment device of the present invention, the dimension between each pipe member or each heater and the peripheral surface of the heat-resistant part is larger than the dimension between the central axis of the heat-resistant part and each pipe member or each heater. Since each heater can heat the central part of the heat-resistant part in a concentrated manner, the area around the heating area is kept warm by the heat-resistant part. Can be suppressed. Therefore, the heating efficiency by the heater can be improved and the running cost of the exhaust gas treatment device can be reduced.

  (4) The exhaust gas treatment device according to the present invention is characterized in that a pipe member is also embedded on the central axis of the heat-resistant part.

  In the exhaust gas treatment device of the present invention, a pipe member is also embedded on the central axis of the heat-resistant part. As described above, the central portion of the heat-resistant portion is efficiently heated by each heater. Therefore, the amount of exhaust gas can be improved by embedding a pipe member on the central axis of the heat-resistant portion.

  (5) In the exhaust gas treatment device according to the present invention, an introduction chamber for introducing exhaust gas into the vicinity of one end of the heat-resistant portion extends in a direction intersecting with the central axis of the heat-resistant portion, and each pipe member is a heat-resistant portion. The one end of each pipe member communicates with the introduction chamber, and the exhaust gas is introduced into the introduction chamber from a direction intersecting with the longitudinal direction of each pipe member. It is characterized by being.

  In the exhaust gas treatment device of the present invention, an introduction chamber for introducing exhaust gas into the vicinity of one end of the heat-resistant portion extends in a direction intersecting with the central axis of the heat-resistant portion. Each tube member is arranged in parallel with the central axis of the heat-resistant portion, and one end of each tube member is communicated with the introduction chamber. And exhaust gas is introduced into the introduction chamber from the direction intersecting with the longitudinal direction of each pipe member.

  Thus, since the introduction chamber is provided in the heat-resistant part, the exhaust gas introduced into the introduction chamber is preheated there. The exhaust gas heated in the introduction chamber flows into each pipe member and is sufficiently heat-treated in each pipe member. Accordingly, the efficiency of heat treatment of the exhaust gas is improved.

  Further, since exhaust gas is introduced into the introduction chamber from a direction intersecting with the longitudinal direction of each pipe member, the exhaust gas introduced into the introduction chamber is prevented from flowing into each pipe member as it is. Thus, the speed of the exhaust gas flowing through each pipe member can be made substantially constant. This makes it possible to perform uniform heat treatment with as much uniformity as possible.

  (6) In the exhaust gas treatment device according to the present invention, a discharge chamber for discharging the exhaust gas extends in the vicinity of the other end of the heat-resistant portion in a direction intersecting with the central axis of the heat-resistant portion. The end communicates with the discharge chamber, and exhaust gas is discharged from the discharge chamber in a direction intersecting with the longitudinal direction of each pipe member.

  In the exhaust gas treatment device of the present invention, the discharge chamber for discharging the exhaust gas in the vicinity of the other end of the heat-resistant portion extends in a direction intersecting with the central axis of the heat-resistant portion, and the other end of each pipe member is It communicates with the discharge chamber. And exhaust gas is discharged | emitted from the discharge chamber in the direction which cross | intersects the longitudinal direction of each pipe member.

  As described above, since the exhaust gas is discharged from the discharge chamber in a direction intersecting with the longitudinal direction of each pipe member, the exhaust gas introduced into the discharge chamber is discharged outside the exhaust gas treatment device as it is. Therefore, the speed of the exhaust gas flowing through each pipe member can be made substantially constant. Therefore, as before, a uniform heat treatment can be performed with as much uniformity as possible.

  (7) The exhaust gas treating device according to the present invention is characterized in that each of the heaters is provided so that both ends thereof penetrate the heat-resistant portion and extend outward.

  In the exhaust gas treatment device of the present invention, each heater is provided so that both ends thereof penetrate the heat-resistant portion and extend outward. Also, the heater can be easily replaced.

  (8) The thermal decomposition apparatus according to the present invention is configured to decompose the object to be decomposed by a thermochemical reaction while supplying the outside air activated by passing through the magnetic field to the object to be decomposed. (1) The exhaust gas treatment device according to any one of (7) is provided.

  In the thermal decomposition apparatus of the present invention, while supplying the outdoor air activated by passing through the magnetic field to the decomposition target, the decomposition target is decomposed by a thermochemical reaction. Since the exhaust gas treating device according to any one of 1) to (7) is provided, the excellent effects as described above are exhibited.

It is a front view of the thermal decomposition apparatus which concerns on this invention. It is a side view of the thermal decomposition apparatus which concerns on this invention. It is a top view of the thermal decomposition apparatus which concerns on this invention. It is a typical longitudinal cross-sectional view of the exhaust gas processing device shown in FIG. FIG. 2 is a schematic plan sectional view of the exhaust gas treatment device shown in FIG. 1. It is front sectional drawing of the conventional thermal decomposition apparatus. It is a sectional side view of the conventional exhaust gas treatment device.

  Hereinafter, the present invention will be described in detail with reference to the drawings. Note that the exhaust gas treatment device and the thermal decomposition apparatus described in the present embodiment are examples for explaining the gist of the present invention, and the present invention naturally includes modifications without departing from the gist.

  1 to 3 are a front view, a side view, and a plan view of a thermal decomposition apparatus according to the present invention. In each figure, 1 is a main body for thermally decomposing an object to be processed.

  A partition plate 12 that divides the inside of the main body 1 up and down in parallel with the bottom portion of the main body 1 is provided in a cylindrical shell-shaped main body 1 at a position that is appropriately higher than the bottom of the main body 1. An opening having an appropriate area is opened in the central portion. In this opening, a rooster 13 made of a metal strip assembled in a lattice shape is fitted and fixed, and as will be described later, ash (so-called ceramic ash) generated by thermally decomposing an object to be processed on the partition plate 12. ) Falls from the rooster 13 to the bottom of the main body 1.

  One or a plurality of scrapers (two in this example) are opened to scrape the ash that has fallen to the bottom of the main body 1 at a position slightly lower than the rooster 13 on the peripheral surface of the main body 1. The scraper is closed by the discharge lids 14 and 14 so as to be opened and closed.

  On the other hand, on the peripheral surface in the vicinity of the bottom of the main body 1, a plurality of (four in the present embodiment) thermochemical reaction improvers that improve the thermochemical reaction such as thermal decomposition by modifying the outside air supplied to the inside. 5, 5, 5 and 5 are arranged at an appropriate distance in the circumferential direction of the main body 1. The thermochemical reaction improver 5 is formed by connecting a tubular leg portion 7 through which outside air sent from a fan flows to a head portion 6 incorporating a fan, and a magnetic field generator attached to the leg portion 7 (see FIG. 4). The outside air sent through the inside is activated by the magnetic field generated by the air and supplied into the main body 1. The thermochemical reaction improver 5 is arranged such that the head 6 is located outside the main body 1 and the leg 7 is positioned on the radiation from the central axis of the main body 1. It penetrates the surface and enters to an appropriate position in the main body 1.

  In addition, although a permanent magnet or an electromagnet can be used as the magnetic field generator, the former case is preferable because it does not require external power and can reduce running costs.

  An insertion port for introducing an object to be processed is opened at a position near the periphery of the main body 1 on the ceiling of the main body 1, and the insertion port is closed by an input lid 15 so as to be opened and closed. Further, in an area around the main body 1 and in the vicinity of the charging lid portion 15, a worker appropriately opens and closes the charging lid portion 15 so that the workpiece is introduced into the main body 1 from the charging port. The work table 2 is erected, and the work table 1 is provided with a stairs 21 for raising and lowering.

  On the other hand, one end of an exhaust pipe 17 into which exhaust gas generated by thermal decomposition of the object to be processed flows is connected to the ceiling portion of the main body 1 at a position different from that of the charging lid section 15. The other end is connected to the inlet side of the exhaust gas treatment device 3 for heat treating the exhaust gas. The exhaust gas introduced into the exhaust gas treatment device 3 from the exhaust pipe 17 is heat-treated at a temperature of about 1300 ° C. Even if odorous substances remain in the exhaust gas, the odorous substances are lost by the heat treatment. It is made to be able to be made.

  Further, a tower-like cleaning device 4 for cleaning and quenching the gas by bringing the gas into contact with water is disposed in the vicinity of the main body 1, and the heat-treated exhaust gas is connected from the outlet side of the exhaust gas processing device 3. It introduce | transduces in the washing | cleaning device 4 through the pipe | tube 40, and after washing | cleaning and quenching there, it discharge | releases to the exterior. There are cases where fine particles are contained in the exhaust gas, but the fine particles in the exhaust gas are cleaned and removed by contacting with water in the cleaning device 4, and are released into the outside in a state containing almost no fine particles. On the other hand, when the exhaust gas heated to a temperature of about 1300 ° C. by the exhaust gas treatment device 3 is gradually cooled, dioxins may be generated. As described above, the exhaust gas discharged from the exhaust gas treatment device 3 is contained in the cleaning device 4. Since the water is rapidly cooled to the same temperature as the water temperature by contact with water, generation of dioxins is avoided.

  In the thermal decomposition apparatus provided with such thermochemical reaction improvers 5, 5, 5 and 5, an operator on the workbench 2 opens the charging lid portion 15 so that an object to be processed is inserted into the main body from the charging port. 1 is thrown onto the rooster 13 in 1 and a fire type is dropped, the workpiece deposited on the rooster 13 is ignited, the lid 15 for closing is closed, and the thermochemical reaction improvers 5, 5, 5, 5 is activated. In the main body 1 from which the outside air has been shut off, a necessary amount of the outside air activated from each of the thermochemical reaction improvers 5, 5, 5 and 5 is allowed to flow. The processed material is thermally decomposed at a temperature of about 350 ° C., and the bulk of the processed material is reduced to about 1/10.

  4 is a schematic longitudinal sectional view of the exhaust gas treatment device 3 shown in FIG. 1, and FIG. 5 is a schematic plan sectional view of the exhaust gas treatment device 3 shown in FIG.

  As shown in FIGS. 4 and 5, the exhaust gas treatment device 3 is a base body provided with a cylindrical shell 30 and a heat-resistant portion 31 in which a heat-resistant filler such as a heat-resistant castable is filled in the shell 30. 30a. A disk-shaped introduction chamber 32 into which exhaust gas is introduced is provided in parallel with the bottom of the base 30 a at a position near the bottom in the base 30 a, and the exhaust pipe 17 connected to the peripheral surface near the bottom of the outer skin 30. And the introduction chamber 32 are communicated with each other so that exhaust gas is introduced into the introduction chamber 32 from the exhaust pipe 17.

  Similarly, a disc-shaped discharge chamber 33 is provided in a position near the ceiling portion in the base body 30a in parallel with the ceiling portion of the base body 30a to discharge the heat-treated exhaust gas. The connecting pipe 40 connected to the surface is connected to the discharge chamber 33 so that the heat-treated exhaust gas in the discharge chamber 33 is discharged from the connecting pipe 40 into the cleaning device 4 (see FIG. 1).

  On the central axis of the heat-resistant part 31, a processing pipe (tube member) 34 for heat-treating exhaust gas flowing inside is embedded so as to communicate between the introduction chamber 32 and the discharge chamber 33, Around this processing pipe 34, a plurality of (three in the case shown in FIG. 5) other processing pipes (tube members) 34 communicating between the introduction chamber 32 and the discharge chamber 33, 34 and 34 are embedded in a circle centered on the central axis of the heat-resistant part 31 at equal intervals and parallel to the central axis of the heat-resistant part 31.

  On the other hand, at the position on the circle where the other processing tubes 34, 34, 34 are arranged, the other processing tubes 34, 34, 34, 34, 34, 34 adjacent to each other are preferably even. At intervals, for example, a plurality of (three in the case shown in FIG. 5) rod-shaped heaters 35, 35, 35 such as an Elema heating element (manufactured by Tokai Koetsu Kogyo Co., Ltd.) are connected to other processing tubes 34, 34 and 34 are embedded in parallel with each other, and both end portions of the heaters 35, 35, and 35 are protruded outward through the ceiling portion and the bottom portion of the outer skin 30. The heaters 35, 35, 35 are supplied with power from a power source (not shown), and the heaters 35, 35, 35 to which power is supplied generate heat, and the central portion of the heat-resistant portion 31 and the processing tube 34, The other processing tubes 34, 34, 34 can be heated to about 1300 ° C.

  In such an exhaust gas treatment device 3, the exhaust gas introduced into the introduction chamber 32 from the exhaust pipe 17 flows into the processing pipe 34 and the other processing pipes 34, 34, 34 extending in the direction crossing the introduction direction. After the inside of these processing pipes 34 and the other processing pipes 34, 34, 34 are moved to the discharge chamber 33, they are heated to a temperature of about 1300 ° C. and sufficiently heat-treated such as decomposition and deodorization. It is introduced into the discharge chamber 33 and discharged from the discharge chamber 33 to the cleaning device 4 (see FIG. 1) through the connecting pipe 40.

  Here, the radial dimension of the circle in which the other processing pipes 34, 34, 34 and the heaters 35, 35, 35 are arranged is smaller than half the radius of the base body 30a. That is, the dimension between the heater 35 and the outer skin 30 of the base body 30a is larger than the dimension between the center of the base body 30a and the heater 35. As a result, the heaters 35, 35, and 35 can heat the central portion of the heat-resistant portion 31 in a concentrated manner. On the other hand, since the periphery of the heating region is kept warm by the heat-resistant portion 31, heat dissipation to the periphery of the base body 30a is performed. It can be suppressed as much as possible. Therefore, the heating efficiency by the heaters 35, 35, and 35 can be improved, and the running cost of the exhaust gas treatment device 3 can be reduced.

  On the other hand, since the introduction chamber 32 is provided in the heat-resistant part 31, the exhaust gas introduced into the introduction chamber 32 from the exhaust pipe 17 is preheated there. The exhaust gas heated in the introduction chamber 32 flows into the processing pipe 34 and the other processing pipes 34, 34, 34, and passes through the processing pipe 34 and the other processing pipes 34, 34, 34 as described above. While moving to the discharge chamber 33, the temperature is raised to a temperature of about 1300 ° C. and sufficiently heat-treated. Thus, the introduction chamber 32 functions as a residual heat chamber for the exhaust gas introduced therein. Accordingly, the efficiency of heat treatment of the exhaust gas is improved.

  Further, the exhaust pipe 17 connected to the peripheral surface of the outer skin 30 of the exhaust gas treatment device 3 introduces exhaust gas into the introduction chamber 32, and the exhaust pipe is extended in a direction intersecting with the introduction direction, and other treatment pipes 34 are used. Since it is configured to flow into the pipes 34, 34, 34, the speed of the exhaust gas flowing through the processing pipe 34 and the other processing pipes 34, 34, 34 can be made substantially constant. Uniform heat treatment can be performed with no unevenness.

  In addition, the treated exhaust gas introduced into the discharge chamber 33 is transferred from the connecting pipe 40 connected to the peripheral surface of the outer skin 30 of the exhaust gas processing device 3 to the cleaning device 4 (see FIG. 1), and the processing tube 34 and other processing. Since the exhaust pipes 34, 34, 34 are exhausted in a direction crossing the direction in which the exhaust gas flows, the processing pipe 34 and the other processing pipes 34, 34, 34 are passed through. The speed of exhaust gas can be made more constant.

  By the way, in the exhaust gas treatment device 3 according to the present invention, the heaters 35, 35, 35 are used, the heaters 35, 35, 35 are passed through the base body 30 a, and both end portions thereof penetrate the ceiling portion and the bottom portion of the outer skin 30. Therefore, even if a failure occurs in any of the heaters 35, the heater 35 can be easily replaced.

  The exhaust gas treatment device 3 may be supplied with electric power from a commercial power source. However, a generator for generating electricity using natural energy such as sunlight, wind power or wave power and a battery for storing the generated electric power are provided. A power supply device may be provided, and power may be supplied from this power supply device. In the latter case, the exhaust gas treatment device 3 can be driven even in remote areas and unopened areas where the power supply cannot be easily received, or in disaster areas.

  By the way, although the case where the exhaust gas treatment device 3 was provided in the thermal decomposition apparatus was described, the present invention is not limited to this, and the exhaust gas treatment device according to the present invention is an internal combustion engine, a combustion device, a fermentation device, a drying device, or a beast house. Needless to say, the present invention may be applied to an apparatus, a container, a building, or the like that generates exhaust gas.

DESCRIPTION OF SYMBOLS 1 Main body 2 Worktable 3 Exhaust gas treatment device 5 Thermochemical reaction improvement device 30a Base body 30 Outer skin 31 Heat-resistant part 32 Introduction chamber 33 Discharge chamber 34 Processing pipe 35 Heater

Claims (8)

In the heat-resistant part formed by forming a heat-resistant material, a plurality of pipe members for passing the introduced exhaust gas and a plurality of heaters arranged in the vicinity of these pipe members are embedded,
An exhaust gas treatment device, wherein the heat-resistant portion and each pipe member are heated by each heater to heat-treat the exhaust gas flowing through each pipe member. The heat-resistant part is formed in a columnar shape,
2. The exhaust gas treatment device according to claim 1, wherein a plurality of rod-shaped heaters and the pipe members are alternately arranged around a central axis of the heat-resistant portion.   The exhaust gas according to claim 2, wherein a dimension between each pipe member or each heater and the peripheral surface of the heat-resistant part is larger than a dimension between the central axis of the heat-resistant part and each pipe member or each heater. Processor.   The exhaust gas treatment device according to claim 2 or 3, wherein a pipe member is also embedded on a central axis of the heat-resistant portion. An introduction chamber for introducing exhaust gas into the vicinity of one end of the heat-resistant portion extends in a direction intersecting with the central axis of the heat-resistant portion,
Each pipe member is arranged in parallel with the central axis of the heat-resistant part, and one end of each pipe member communicates with the introduction chamber,
The exhaust gas treatment device according to any one of claims 2 to 4, wherein the exhaust gas is introduced into the introduction chamber from a direction intersecting with a longitudinal direction of each pipe member. A discharge chamber for discharging exhaust gas in the vicinity of the other end of the heat-resistant portion extends in a direction intersecting with the central axis of the heat-resistant portion,
The other end of each pipe member communicates with the discharge chamber,
The exhaust gas treatment device according to any one of claims 2 to 5, wherein the exhaust gas is discharged from the discharge chamber in a direction intersecting with a longitudinal direction of each pipe member.   The exhaust gas treatment device according to any one of claims 2 to 6, wherein each of the heaters is provided so that both ends thereof penetrate the heat-resistant portion and extend outward. While the outside air activated by passing through the magnetic field is supplied to the object to be decomposed, the object to be decomposed is decomposed by a thermochemical reaction,
A thermal decomposition apparatus comprising the exhaust gas treatment device according to any one of claims 1 to 7.

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