JP2018176139A - Waste disposal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waste disposal device capable of stably pyrolyzing organic waste with high moisture content and capable of removing the odor of generated gas.SOLUTION: A waste disposal device comprises a pyrolysis device having a storage space 18 for storing organic waste and pyrolyzing the organic waste loaded into the storage space 18, an exhaust passage 50 which connects the storage space 18 with the outside and in which gas generated from the organic waste flows, an air blower 45 provided in the exhaust passage 50 and blowing the gas, and a heater 20 provided in the exhaust passage 50 and heating the gas. The exhaust passage 50 downstream of the heater 20 passes through the inside of the pyrolysis device 11 so that the organic waste in the storage space 18 can exchange heat with the gas in the exhaust passage 50. Thus, the organic waste with high moisture content can be stably pyrolized and the odor of the gas can be removed.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a waste disposal apparatus for pyrolyzing and treating organic waste.

  2. Description of the Related Art There are conventionally known devices for treating organic wastes such as food residues and livestock manure, paper, and wood by thermal decomposition or combustion.

  For example, Patent Document 1 discloses a magnetic thermal decomposition apparatus having a decomposition furnace in which organic waste is contained and thermal decomposition of the organic waste is performed inside. In the magnetic thermal decomposition apparatus of the same document, an air fluidized bed is formed around the decomposition furnace. The air in the air fluidized bed is heated by the heat of the organic substance storage space of the cracking furnace and is supplied to the organic substance storage space. Moreover, the gas which generate | occur | produced by thermal decomposition of the organic substance is isolate | separated into the harmful component and odor component which are contained in gas by ventilating a water tank and a filter.

JP, 2014-113575, A

  However, thermal decomposition can not be stably continued in some cases by the method of sustaining thermal decomposition using heat generated by thermal decomposition of organic waste as in the above-mentioned prior art. Specifically, when the human waste and the like of livestock are thermally decomposed and processed, the heat amount for evaporating the water contained in the organic waste must also be provided by the heat generation of the organic waste. However, when a large amount of organic waste with a high water content is introduced, the calorific value may be insufficient, and as a result, thermal decomposition could not be stably continued.

  Further, as in the above-mentioned prior art, there is a case where the odor and the like can not be sufficiently removed by the method of removing the odor and the like from the gas generated by the thermal decomposition of the organic waste using the water tank and the filter. The

  The present invention has been made in view of the above circumstances, and the object of the present invention is to be able to stably carry out thermal decomposition even if the water content of the organic waste is large, and to generate it from the organic waste It is an object of the present invention to provide a waste disposal apparatus capable of effectively removing the odor of the

  The waste disposal apparatus according to the present invention has a storage space for storing organic waste, a thermal decomposition apparatus for thermally decomposing the organic waste charged into the storage space, and the organic waste connecting the storage space with the outside. An exhaust passage through which a gas generated from the object flows, a blower provided in the exhaust passage for blowing the gas, and a heating device provided in the exhaust passage for heating the gas, which are downstream of the heating device The exhaust passage is characterized in that the gas in the exhaust passage and the organic waste in the storage space pass through the inside of the thermal decomposition apparatus so as to be able to exchange heat.

  According to the waste disposal apparatus of the present invention, there is provided a storage space for storing organic waste, a thermal decomposition apparatus for thermally decomposing organic waste introduced into the storage space, and connecting the storage space and the outside with organic waste An exhaust path through which the generated gas flows, a blower provided in the exhaust path for blowing the gas, and a heating device provided in the exhaust path for heating the gas are provided. By providing the heating device in the exhaust path, the gas generated from the organic waste can be heated by the heating device to decompose odorous components and harmful substances contained in the gas.

  Further, in the exhaust path downstream of the heating device, the gas in the exhaust path and the organic waste in the storage space pass through the inside of the thermal decomposition apparatus so as to be able to exchange heat. Thereby, the inside of the storage space of the thermal decomposition apparatus can be heated by the heat of the gas heated by the heating device, and the organic waste containing a large amount of water can be thermally decomposed suitably. In addition, even if the type of organic waste introduced into the storage space is changed, the temperature in the storage space can be maintained at a predetermined temperature, so that the thermal decomposition of the organic waste can be stably performed for a long time it can.

  Further, since the heating device is provided in the exhaust path, it is possible to effectively utilize the heat generation from the organic waste that reacts in the accommodation space. That is, the high-temperature gas exhausted from the storage space is reheated and used for decomposition of odorous components and the like and heating of organic waste in the storage space. Thus, the energy consumption of the waste disposal device can be reduced.

  Further, according to the waste disposal apparatus of the present invention, the temperature sensor is provided inside the heating device to detect the temperature of the gas flowing inside the heating device, and the blower is the temperature of the gas detected by the temperature sensor. It may be controlled based on it. Thus, the amount of gas exhausted from the thermal decomposition apparatus and supplied into the heating apparatus is suitably adjusted to maintain the temperature in the storage space of the thermal decomposition apparatus at a predetermined temperature suitable for the treatment of organic waste. can do.

  Further, according to the waste disposal device of the present invention, the first temperature sensor provided inside the heating device for detecting the temperature of the gas flowing inside the heating device, and downstream from the first temperature sensor inside the heating device A second temperature sensor provided on the side for detecting the temperature of the gas flowing inside the heating device, wherein the heating device is controlled based on the temperature of the gas respectively detected by the first temperature sensor and the second temperature sensor It may be done. Thereby, the heating amount by a heating apparatus can be adjusted suitably, and the temperature in the storage space of a thermal decomposition apparatus can be maintained appropriately.

  Further, according to the waste disposal apparatus of the present invention, the cleaning apparatus is provided in the exhaust path, and the cleaning apparatus is provided between the water tank in which the water is stored and the water tank provided above the water tank. In the cleaning device, the gas may be brought into contact with water and the water-soluble component contained in the gas may be absorbed by the water. As a result, it is possible to remove water-soluble harmful substances, odorous components and the like contained in the gas.

  Further, according to the waste disposal apparatus of the present invention, the first chamber may be provided in which the flow passage area is larger than the piping provided in the exhaust passage and constituting the exhaust passage. Thus, the components contained in the gas can be mixed in the first chamber, and the distribution of each component in the gas can be made substantially uniform, and the heating by the heating device can be made uniform.

  Also, a second chamber may be provided covering the first chamber, and a part of the gas heated by the heating device may be supplied between the first chamber and the second chamber. Thereby, the first chamber can be warmed by the heat of the gas heated by the heating device, and the steam flowing in the first chamber can be prevented from cooling and condensing.

It is the schematic which shows the structure of the waste disposal apparatus which concerns on embodiment of this invention. It is a side view of the thermal decomposition equipment of the waste disposal equipment concerning the embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS (A) AA line sectional drawing of the thermal decomposition apparatus of the waste disposal apparatus which concerns on embodiment of this invention, (B) BB sectional drawing. It is an (A) top view of a heating device of a waste disposal device concerning an embodiment of the present invention, (B) CC line sectional view. It is the (A) front view of the heater unit provided in the heating device of the waste disposal device concerning the embodiment of the present invention, and the (B) side view. It is the schematic of the washing | cleaning apparatus of the waste disposal apparatus which concerns on embodiment of this invention. It is the schematic which shows the structure of the waste disposal apparatus which concerns on other embodiment of this invention. It is the schematic which shows the structure of the waste disposal apparatus which concerns on other embodiment of this invention.

Hereinafter, a waste disposal device according to an embodiment of the present invention will be described in detail based on the drawings.
FIG. 1 is a schematic view showing the configuration of a waste disposal apparatus 10 according to an embodiment of the present invention. The arrows shown in FIGS. 1 to 8 indicate the flow direction of the gas generated from the thermal decomposition device 11. The waste treatment apparatus 10 is for treating organic waste by thermal decomposition or combustion.

  As shown in FIG. 1, the waste processing apparatus 10 includes a thermal decomposition apparatus 11 that thermally decomposes organic waste such as food residue and livestock waste, paper, and wood, and an exhaust path through which gas generated from the organic waste flows. And 50. A storage space 18 for storing organic waste is formed in the thermal decomposition apparatus 11. The exhaust path 50 is formed, for example, by a pipe or the like, and is provided so as to connect the housing space 18 of the thermal decomposition apparatus 11 to the outside.

  The exhaust path 50 has a heat exchange portion 53 capable of exchanging heat between the gas in the exhaust path 50 and the organic waste in the accommodation space 18. The heat exchange portion 53 is provided in the accommodation space 18. Further, the exhaust path 50 is provided with a chamber 40, a blower 45, a heating device 20 and a cleaning device 30.

  In the above configuration, the organic waste introduced into the storage space 18 of the thermal decomposition apparatus 11 is heated and thermally decomposed or burned to become ash. In addition, the organic waste is heated, or thermally decomposed or burned to generate a gas containing water vapor, ammonia, and the like. The generated gas is exhausted to the outside of the thermal decomposition device 11 after being processed by the heating device 20 and the cleaning device 30 via the exhaust path 50.

  The chamber 40 has a first chamber 41 connected to the thermal decomposition apparatus 11 by a pipe or the like which becomes the exhaust path 50, and a second chamber 42 formed so as to cover the first chamber 41. The first chamber 41 has, for example, a substantially box-like shape, and the inside thereof is formed larger than the flow passage area of the pipe which becomes the exhaust passage 50. Therefore, the gas blown from the thermal decomposition device 11 stays in the first chamber 41 and is agitated, and the components contained in the gas are mixed. Thereby, distribution of each component in gas can be made substantially uniform, and equalization | homogenization of the heating by the heating apparatus 20 mentioned later can be achieved.

  The mixed gas passing through the first chamber 41 flows to the blower 45 via the exhaust passage 50. The blower 45 has, for example, a motor (not shown) and a propeller (not shown) driven and rotated by the motor. As the propeller rotates, the gas in the thermal decomposition apparatus 11 is drawn and blown to the heating apparatus 20 provided downstream of the blower 45.

  The heating device 20 is a device that heats the supplied gas. By heating the gas to a high temperature by the heating device 20, it is possible to decompose harmful substances, odorous components and the like contained in the gas. Further, since the heating device 20 is provided in the exhaust path 50, the heat generation from the organic waste that reacts in the accommodation space 18 can be effectively used. Specifically, since the heating device 20 reheats the high-temperature gas exhausted from the housing space 18, the gas can be heated to a predetermined temperature with a small amount of heat.

  Further, the heating device 20 is connected with a pipe 51 serving as an exhaust path 50 for exhausting the heated gas. The pipe 51 is connected to a heat exchange unit 53 provided in the accommodation space 18 of the thermal decomposition apparatus 11. Further, a branch pipe 52 connected to the second chamber 42 is connected to the pipe 51. The gas heated by the heating device 20 is mainly supplied to the heat exchange unit 53 provided in the thermal decomposition device 11, and about 10% of the heated gas is supplied to the second chamber 42.

  The gas supplied to the second chamber 42 flows between the first chamber 41 and the second chamber 42, that is, around the first chamber 41. Thereby, the gas in the first chamber 41 is warmed by the gas heated by the heating device 20. As a result, the water vapor contained in the gas in the first chamber 41 can be prevented from being cooled and condensed. Further, by utilizing the heat of the gas heated by the heating device 20, it is not necessary to separately prepare a device for warming the first chamber 41, and the energy consumption of the waste disposal device 10 can be reduced. The gas supplied to the second chamber 42 is exhausted to the atmosphere after passing through the inside of the second chamber 42.

  The gas supplied to the heat exchange unit 53 passes through the storage space 18 of the thermal decomposition apparatus 11. As a result, the inside of the storage space 18 can be heated by the gas heated by the heating device 20, and even when organic waste having a large water content is introduced, the water of the organic waste is evaporated to cause heat The decomposition can be performed stably. As described above, the energy consumption of the waste disposal apparatus 10 is achieved by heating the storage space 18 by effectively using the heat of the heated gas to decompose the odorous components and the like contained in the gas by the heating device 20. Can be reduced.

  Further, a pipe 54 serving as an exhaust path 50 is connected to the thermal decomposition apparatus 11. The gas that has passed through the inside of the heat exchange unit 53 is supplied to the cleaning device 30 via the pipe 54. The cleaning device 30 has a water tank 31 (see FIG. 6) in which the water W is stored. When the gas supplied to the cleaning device 30 comes in contact with the water W, water-soluble harmful substances, odorous components and the like contained in the gas are removed. Then, the gas that has passed the cleaning device 30 and from which the odor component and the like have been removed is exhausted to the atmosphere.

  The waste treatment apparatus 10 may be provided with a control device (not shown) that controls the entire waste treatment apparatus 10 and the like. The control device can suitably control the temperature of the storage space 18 of the thermal decomposition device 11, the temperature inside the heating device 20, and the like.

  FIG. 2 is a side view of the thermal decomposition apparatus 11. As shown in FIG. 2, the thermal decomposition apparatus 11 is formed in a substantially box shape, and a raw material inlet 12 for injecting organic wastes and the like is formed in the upper part.

  The raw material inlet 12 has an openable / closable door 13 provided in the upper part and a door 14 provided in the lower part of the raw material inlet 12 and is formed in a substantially inverted truncated pyramid like a hopper. The door 14 is a sliding door, and can open and close the door 14 with the door 13 closed.

  When the organic waste is introduced into the storage space 18, the door 13 is opened with the door 14 closed, and the organic waste is introduced. Then, after the door 13 is closed, the door 14 is opened, and organic waste and the like are introduced into the storage space 18 of the thermal decomposition apparatus 11. Thereby, it is possible to prevent the gas and the like in the thermal decomposition apparatus 11 from being exhausted from the raw material inlet 12 to the atmosphere. Note that, instead of the above-described configuration, the substantially hopper-shaped raw material inlet 12 may not be formed, and an opening for charging the raw material and one door for closing the opening may be provided.

  An ash outlet door 15 is provided at a lower side of the thermal decomposition apparatus 11. The ash generated from the thermal decomposition of the organic waste is taken out from the ash outlet door 15. Further, a plurality of air supply ports 16 are provided on the side surface of the thermal decomposition apparatus 11. The air supply port 16 is an openable / closable opening having a diameter of about 7 mm, and outside air is supplied from the air supply port 16 to the storage space 18 inside the thermal decomposition apparatus 11. Note that the air supply port 16 may be formed over the entire circumference of the thermal decomposition apparatus 11. Further, the air supply port 16 may not be formed on the side surface of the thermal decomposition apparatus 11.

  3A is a cross-sectional view of the thermal decomposition apparatus 11 taken along line A-A shown in FIG. 2 and FIG. 3B is a cross-sectional view of the thermal decomposition apparatus 11 taken along line B-B shown in FIG. It is. As shown in FIG. 3A, a heat exchange portion 53 formed in a substantially reverse U shape in a plan view is provided in the storage space 18 of the thermal decomposition device 11. The inlet and the outlet of the gas to the heat exchange unit 53 are provided on the same side of the thermal decomposition apparatus 11.

  As shown in FIG. 3 (B), the heat exchange portions 53 are formed to meander at substantially equal intervals in the vertical direction. Further, a net 17 is provided below the heat exchange unit 53 in the lower part of the housing space 18. The net 17 is provided above the ash outlet door 15, and on the net 17, a layer X of ash or the like after pyrolyzing a fire type or organic waste for pyrolyzing the organic waste. Is formed.

  The layer X is approximately 50 cm high, and the lower part of the heat exchange portion 53 is buried in the layer X. When the gas heated by the heating device 20 (see FIG. 1) flows in the heat exchange unit 53, the fire species, ash and the like are heated. Thereby, the temperature in the accommodation space 18 can be suitably maintained, and the thermal decomposition of the organic waste can be stably performed for a long time.

  As described above, the exhaust path 50 connected to the accommodation space 18 is connected to the upper part of the side surface of the thermal decomposition apparatus 11. A temperature sensor (not shown) for detecting the temperature of the gas exhausted from the thermal decomposition device 11 is provided in the vicinity of the opening connected to the exhaust path 50. The temperature sensor is connected to a control device (not shown) so as to be able to output a detection result.

  The control device controls the blower 45 (see FIG. 1) based on the detection result of the temperature sensor provided in the vicinity of the opening of the thermal decomposition device 11. Specifically, when the temperature sensor detects a temperature higher than a preset temperature, control is performed to lower the rotational speed of the blower 45. As a result, the amount of gas drawn from the thermal decomposition device 11 by the blower 45 is reduced, and the gas can be retained in the thermal decomposition device 11 to suppress thermal decomposition of the organic waste.

  In addition, since the rotational speed of the blower 45 is reduced, the amount of gas supplied from the heating device 20 to the heat exchange unit 53 via the exhaust path 50 is reduced, and the amount of heat supplied to the thermal decomposition device 11 is small. Become. In this manner, the control device can control the temperature in the storage space 18 of the thermal decomposition device 11 by controlling the blower 45, and the temperature in the storage space 18 of the thermal decomposition device 11 It can be maintained at a predetermined temperature suitable for processing. The control target value of the temperature detected by the temperature sensor is preferably 130 ° C. to 250 ° C.

  Next, the case where the organic waste is thermally decomposed will be described. The organic waste introduced into the thermal decomposition apparatus 11 is deposited in the vicinity of the heat exchange section 53 on the bed X. Thus, the water contained in the organic waste is heated and evaporated by the heat of the gas flowing in the heat exchange unit 53.

  In addition, when organic waste having a high water content is introduced into the storage space 18, the water of the organic waste is absorbed by the layer X. As described above, since the heat exchange portion 53 is buried in the layer X, the moisture absorbed in the layer X is heated and evaporated by the heat of the gas flowing in the heat exchange portion 53. Thereby, even when the organic waste having a high water content is introduced into the storage space 18, the thermal decomposition of the organic waste can be stably performed. The temperature of the gas heated by the heating device 20 and supplied to the heat exchange unit 53 is 750 ° C. to 850 ° C., and the temperature of the gas exhausted from the heat exchange unit 53 to the pipe 54 downstream thereof is 200 ° C. It is 300 ° C.

  Then, the organic waste dried by the heat of the heat exchange unit 53 is heated and pyrolyzed by the fire species of the layer X. In addition, since outside air is hardly supplied in the accommodation space 18, organic waste does not raise a flame and burn violently. The temperature in the bed X is 200 ° C. to 400 ° C., and the organic waste is pyrolyzed under the temperature conditions or incinerated by flameless combustion.

  FIG. 4A is a plan view of the heating device 20. FIG. FIG. 4B is a cross-sectional view of the heating device 20 taken along line C-C shown in FIG. As shown to FIG. 4 (A) and (B), the heating apparatus 20 is formed in a substantially box shape, and the some partition plate 22 is provided in the inside of the heating apparatus 20. As shown in FIG. The partition plate 22 is provided to be substantially parallel to the side wall 21 to which the exhaust path 50 is connected, and the inside of the heating device 20 is partitioned by the partition plate 22 at substantially equal intervals.

  In each space partitioned by the partition plate 22, a heater unit 26 is provided. The heater unit 26 has a support member 29 fixed to the heating device 20 and a heater portion 27 fixed to the support member 29. In the heater unit 26, the support member 29 is supported by the upper portion of the side wall 21, the upper portion of the partition plate 22, and the beam 24, and is suspended in the space.

  Moreover, the opening part 23 is formed in the upper part or lower part of the partition plate 22 so that it may become alternate with the adjacent partition plate 22. As shown in FIG. Thereby, the gas supplied to the heating device 20 flows while meandering in the inside of the heating device 20 in the vertical direction. Thus, the time for the gas to pass through the heating device 20 becomes long, and the heating device 20 can efficiently heat the gas.

  A temperature sensor 25 is provided in the vicinity of the opening 23 of the partition plate 22 provided near the center of the heating device 20. The temperature sensor 25 is connected to a control device (not shown). The control device controls the blower 45 (see FIG. 1) based on the information from the temperature sensor 25. For example, when the temperature sensor 25 detects a temperature higher than a preset temperature, the control device performs control to reduce the number of rotations of the blower 45. As a result, the amount of gas supplied from the heating device 20 to the storage space 18 (see FIG. 1) of the thermal decomposition apparatus 11 can be reduced, and the temperature in the storage space 18 can be prevented from becoming too high.

  FIG. 5A is a front view of the heater unit 26 to which the temperature sensor 28 is attached, and FIG. 5B is a side view of the heater unit 26. As shown to FIG. 5 (A) and (B), the heater part 27 is a sheathed heater etc., for example. By using a sheathed heater or the like as the heater unit 27, deterioration of the heater unit 27 due to moisture such as water vapor can be prevented, and the durability of the heater unit 26 can be enhanced.

  The heater portion 27 extends in the vertical direction, and a part of the heater portion 27 is bent and formed to meander in the vertical direction. A part of the temperature sensor 28 attached to the heater unit 26 is fixed to the support member 29, and the temperature detection unit of the temperature sensor 28 is fixed so as to be in contact with the heater unit 27.

  As shown to FIG. 4 (A) and (B), the 1st temperature sensor 28a used as the temperature sensor 28 is attached to the 2nd heater unit 26 from an upstream, for example. The second temperature sensor 28b serving as the temperature sensor 28 is provided downstream of the first temperature sensor 28a, and is attached to, for example, the second heater unit 26 from the downstream side.

  The temperature sensor 28 is connected to a control device (not shown), and the detection result of the temperature sensor 28 is sent to the control device. For example, when the first temperature sensor 28a provided on the upstream side detects a temperature higher than a preset temperature, the control device outputs the output of the heater unit 26 provided on the upstream side of the heating device 20. Control to lower.

  Also, for example, when the control device detects a temperature higher than a preset temperature by the second temperature sensor 28b provided downstream, the heater unit 26 provided downstream of the heating device 20 Control to lower the output of.

  As described above, by separately controlling the heater unit 26 in the heating device 20 on the upstream side and the downstream side by the control device, the heating amount is suitably adjusted, and the upstream side where the gas is not sufficiently heated And the downstream side where the gas is heated and is higher than the upstream can be maintained at a suitable temperature. Further, by suitably controlling the temperature in the heating device 20, the temperature of the gas supplied to the heat exchange unit 53 (see FIG. 1) can be adjusted, and the storage space 18 of the thermal decomposition device 11 (see FIG. 1) temperature can be maintained properly. The control target value of the temperature detected by the first temperature sensor 28 a is preferably set to 450 ° C. to 550 ° C., and the control target value of the temperature detected by the second temperature sensor 28 b is 800 ° C. to Preferably, it is set to 900 ° C.

  FIG. 6 is a schematic view showing a schematic configuration of the cleaning device 30. As shown in FIG. As shown in FIG. 6, the washing | cleaning apparatus 30 has the water tank 31 by which water W is stored inside by substantially box shape. A pipe 54 serving as an exhaust path 50 is connected to the upper portion of the water tank 31. As shown in FIG. 1, the gas passing through the heat exchange unit 53 is supplied.

  The water tank 31 is provided with a water supply pipe 32 for supplying water W and a drainage port 33. The drainage port 33 is formed in the vicinity of the water surface of the water W, and the water W in the vicinity of the water surface is drained from the drainage port 33. The water W drained by the drain port 33 is collected in a container (not shown) and separated into tar and wood vinegar. In addition, the removed tar etc. may be returned to the thermal decomposition apparatus 11 again, and may be thermally decomposed.

  A partition plate 35 is provided inside the water tank 31 above the water surface. The gas supplied to the cleaning device 30 flows between the partition plate 35 and the water surface and is supplied to the scrubber chamber 37. When the gas flows between the partition plate 35 and the water surface, the gas can be brought into contact with the water W, and water-soluble components such as ammonia contained in the gas can be absorbed and removed in the water W.

  In addition, an air pipe 34 is provided inside the water tank 31. For example, an air pump 35 is connected to the air pipe 34, and the gas supplied to the cleaning device 30 is drawn by the air pump 35, passes through the water W, and is supplied to the scrubber chamber 37. Also by this, the gas and the water W can be brought into contact, and the water-soluble components contained in the gas can be removed. In addition, the gas sucked by the air pump 35 is sprayed into the water W, whereby the water W is stirred, the water surface is waved, and the contact between the gas and the water W can be promoted.

  A demister 38 and a filter 39 are provided in the vicinity of the exhaust port of the cleaning device 30. The demister 38 is, for example, a wire mesh or the like, and when the gas passes through the demister 38, the moisture contained in the gas adheres to the demister 38 and is removed. The filter 39 is, for example, an activated carbon filter or the like. By passing the gas through the filter 39, harmful substances, odorous components and the like contained in the gas are adsorbed to the filter 39 and removed. Then, the gas that has passed through the filter 39 is exhausted to the atmosphere.

  Although the chamber 40, the blower 45, the heating device 20, and the cleaning device 30 are provided on the exhaust path 50 in the embodiment described above, the exhaust path 50 may be provided with other devices. . For example, a demister may be provided on the exhaust path 50 upstream of the heating device 20, etc., and the demister may remove water from the gas.

  FIG. 7 is a schematic view of a waste disposal apparatus 110 according to another embodiment, and FIG. 8 is a schematic view of a waste disposal apparatus 210 according to still another embodiment. In addition, about the component which produces | generates the effect | action and effect similar to embodiment already demonstrated or an effect, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 7, in the waste disposal device 110, the cleaning device 30, the blower 45, the heating device 20, and the heat exchange unit 53 are sequentially provided in the exhaust path 150 from the thermal decomposition device 11. With such a configuration, the gas generated by the thermal decomposition of the organic waste is sequentially from the thermal decomposition device 11 to the cleaning device 30, the blower 45, the heating device 20, and the heat exchange unit 53 provided in the exhaust path 150. It is vented to the atmosphere via

  As described above, the gas generated by the thermal decomposition device 11 is first supplied to the cleaning device 30, so that the gas is cleaned by the cleaning device 30 and the water W (see FIG. 6) in the cleaning device 30 is used. It can be cooled. Further, when the gas flow is disturbed or stagnated in the scrubber chamber 37 (see FIG. 6) in the cleaning device 30, the components contained in the gas are mixed, and the concentrations of the components become substantially uniform. . Therefore, it is not necessary to provide the chamber 40 (see FIG. 1) in the exhaust path 150, and the apparatus can be simplified.

  As shown in FIG. 8, the waste disposal device 210 is an example of a configuration in which the cleaning device 30 (see FIG. 1) is not provided. The other configuration is the same as that of the waste disposal apparatus 10 shown in FIG. 1, and the chamber 40, the blower 45, the heating device 20 and the heat exchange unit 53 are sequentially provided in the exhaust path 250 from the thermal decomposition device 11. ing.

  In the above configuration, the gas generated by the thermal decomposition of the organic waste is exhausted to the atmosphere sequentially through the chamber 40, the blower 45, the heating device 20 and the heat exchange unit 53 provided in the exhaust path 250. Ru.

The present invention is not limited to the above embodiment. For example, a configuration may be employed in which the exhaust path 50 through which the gas flows after passing through the heat exchange unit 53 in the thermal decomposition device 11 is connected to an exhaust heat utilization device such as a power generation device or a water heater. As a result, the exhaust heat of the gas heated by the heating device 20 and used for heating the thermal decomposition device 11 can be effectively used to perform power generation and hot water supply. Alternatively, a configuration may be employed in which a power generation device, a water heater, or the like is attached to the thermal decomposition device 11 and the heat generated when the organic waste is thermally decomposed is used.
The present invention can be modified in various ways without departing from the scope of the present invention.

10, 110, 210 Waste disposal device 11 Thermal decomposition device 20 Heating device 25 Temperature sensor 26 Heater unit 28 Temperature sensor 28a First temperature sensor 28b Second temperature sensor 30 Cleaning device 40 Chamber 41 First chamber 42 Second chamber 45 Blower 50, 150, 250 Exhaust path 53 Heat exchange section

Claims (5)

A thermal decomposition apparatus having a storage space for storing organic waste, and pyrolyzing the organic waste introduced into the storage space;
An exhaust path connecting the storage space and the outside, through which a gas generated from the organic waste flows,
A blower provided in the exhaust path for blowing the gas;
A heating device provided in the exhaust path and heating the gas;
The exhaust path downstream of the heating device is characterized in that the gas in the exhaust path and the organic waste in the storage space pass through the inside of the thermal decomposition apparatus so as to be able to exchange heat. Waste disposal equipment. A temperature sensor provided inside the heating device to detect the temperature of the gas flowing inside the heating device;
The waste blower according to claim 1, wherein the blower is controlled based on a temperature of the gas detected by the temperature sensor. A first temperature sensor provided inside the heating device to detect the temperature of the gas flowing inside the heating device;
A second temperature sensor provided downstream of the first temperature sensor in the heating device and detecting the temperature of the gas flowing in the heating device;
The waste processing apparatus according to claim 1 or 2, wherein the heating device is controlled based on the temperature of the gas detected by the first temperature sensor and the second temperature sensor. . A cleaning device provided in the exhaust path;
The cleaning device includes a water tank in which water is stored, and a partition plate provided above the water tank to form a flow path through which the gas flows with the water.
The waste according to any one of claims 1 to 3, wherein in the cleaning device, the gas comes in contact with the water, and the water-soluble component contained in the gas is absorbed by the water. Object processing device. A first chamber provided in the exhaust passage and having a flow passage area larger than that of a pipe constituting the exhaust passage;
A second chamber covering the first chamber;
The waste according to any one of claims 1 to 4, wherein a part of the gas heated by the heating device is supplied between the first chamber and the second chamber. Processing unit.

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