JP2017020673A - Low temperature heat decomposition treatment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low temperature heat decomposition treatment device capable of accelerating heat decomposition of undecomposed residue, and discharging exhaust gas in which tar, saprophytes and the like are removed.SOLUTION: A low temperature heat decomposition treatment device 1 has: a decomposition treatment tank 46 into which a treatment object is input; magnetic air supply units 5, 6 configured to supply magnetic air into the decomposition treatment tank 46; an off-gas guide pipe 25 configured to suction off-gas generated when the treatment object is subjected to heat decomposition, in the decomposition treatment tank 46, and including a heating secondary decomposition pipe part 77 disposed on the bottom part of the decomposition treatment tank 46; a purification tank unit 27 arranged on an off-gas emission side of the off-gas guide pipe 25; and an off-gas purification part 7 including an air blower 31 configured to discharge off-gas passing through the purification tank part 27 to the outside.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a low-temperature pyrolysis treatment apparatus.

  The disposal of organic waste such as raw garbage and plastic waste has become a common problem worldwide. An incinerator (incinerator) is generally used as an apparatus for treating these organic wastes, and is disclosed in Patent Document 1. Such an incinerator needs to burn gas, oil, etc., and maintain the inside of a combustion furnace at high temperature. Further, when trying to make the exhaust gas of the organic compound generated by combustion harmless, it is necessary to use a catalyst or a heating combustion means for further burning the exhaust gas, resulting in an increase in size.

  In contrast to the incinerators as described above, organic waste treatment apparatuses that can be reduced in size without burning fuel such as gas and oil are known. This dust treatment device passes air into a magnetic field to make magnetized (ionized) air, sends this magnetized air into the decomposition treatment tank, and promotes the chemical reaction between magnetized air and organic matter by the heat of the seed fire, and combustion This is a method for thermally decomposing organic waste at a lower temperature than the above, and is disclosed in Patent Document 2.

JP 2002-243130 A JP 2010-75823 A

  In the low-temperature pyrolysis treatment apparatus described in Patent Document 2, the object to be treated is pyrolyzed with magnetized air, but undecomposed residues are contained in the treated ash or off-gas generated during pyrolysis. There is a problem that tars and germs contained therein are discharged to the outside.

  The present invention has been made in view of such problems, and the object of the present invention is to promote the thermal decomposition of undecomposed residues and to discharge the exhaust gas from which tars and germs have been removed and which can be discharged. Is to achieve.

  In order to solve the above-described problems, a low-temperature pyrolysis treatment apparatus of the present invention includes a decomposition treatment tank into which an object to be treated is charged, a magnetized air supply unit that supplies magnetized air into the decomposition treatment tank, and a heat treatment object. Off gas generated when decomposed is sucked into the decomposition treatment tank, an off gas induction pipe having a heated secondary decomposition pipe portion disposed at the bottom of the decomposition treatment tank, and an off gas discharge side of the off gas induction pipe And an off-gas purification unit provided with exhaust means for discharging off-gas passing through the purification tank to the outside.

  Further, in addition to the above invention, the off-gas induction pipe is disposed along the inside of the side wall of the decomposition treatment tank, and an off-gas suction pipe part that sucks off gas, a heating secondary decomposition pipe part that communicates with the off-gas suction pipe part, It is preferable to include an off-gas discharge pipe part that communicates with the heated secondary decomposition pipe part, is disposed outside the decomposition treatment tank, and guides off-gas to the purification tank part.

  In addition to the above invention, the heated secondary decomposition tube portion can be inserted from the end portion of the heated secondary decomposition tube portion or can be extracted from the end portion of the heated secondary decomposition tube portion. It is preferable that the inner cylinder pipe communicates with the off-gas suction pipe section and the off-gas discharge pipe section.

  In addition to the above invention, it is preferable that a partition plate for meandering the flow of off-gas is provided in the inner tube.

  In addition to the above invention, the low-temperature pyrolysis apparatus has a decomposition treatment tank, a magnetized air supply unit, an off-gas induction tube, and an off-gas purification unit, and the off-gas induction tube includes an off-gas suction tube unit, a heating unit It is preferable to include a secondary decomposition pipe part and an off-gas discharge pipe part.

  Further, in addition to the above invention, the heated secondary decomposition pipe section is disposed at the bottom of the decomposition treatment tank and has an inner cylinder pipe, and the inner cylinder pipe is connected to the off-gas purification section via the off-gas discharge pipe section. It is preferable to communicate.

  Further, in addition to the above-described invention, it is preferable that the off-gas purification unit has an injection unit that injects the purification liquid into the off-gas.

  Moreover, in addition to the said invention, it is preferable that the off-gas purification | cleaning part has a combustion means to burn off-gas.

  Further, in addition to the above invention, it is preferable to have oxygen supply means for supplying oxygen to the decomposition residue in the decomposition treatment tank.

  In addition to the above invention, the magnetized air supply unit communicates the air reservoir and the magnetized air reservoir, the air suction means for sucking air from the outside into the air reservoir, and the air reservoir and the magnetized air reservoir. A magnetized air generator having a magnetizer, a magnetized air supply pipe communicating with the magnetized air storage tank, and a magnetized air discharge pipe communicating with the magnetized air supply pipe and sending magnetized air into the decomposition treatment tank; It is preferable.

  Moreover, in addition to the said invention, it is preferable that the low-temperature thermal decomposition processing apparatus has an electric power generation means to generate electric power by the temperature difference between the decomposition treatment tank side and the outside air side.

It is a perspective view of the low-temperature pyrolysis processing apparatus which concerns on the 1st Embodiment of this invention. It is the front view which looked at the low-temperature pyrolysis processing apparatus of FIG. 1 from the front. It is the side view which looked at the low-temperature pyrolysis processing apparatus of FIG. 1 from the right side. It is the rear view which looked at the low-temperature pyrolysis processing apparatus of FIG. 1 from back. It is sectional drawing cut | disconnected by the AA cutting line of FIG. 1, and is a figure which shows the whole structure of a magnetized air supply part. It is sectional drawing cut | disconnected by the AA cutting line of FIG. 1, and is a figure which shows a magnetized air production | generation part. It is sectional drawing of the low-temperature pyrolysis processing apparatus cut | disconnected by the CC cutting line of FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the off-gas purification | cleaning part which concerns on the 1st Embodiment of this invention, (A) is the figure which saw the wall of the near side seeing the off-gas purification part from the right side, (B) is an off-gas. It is the figure which saw through the wall of this side seeing the purification | cleaning part from the back side. It is sectional drawing cut | disconnected by the DD cutting line of FIG. 1, and is a figure which shows an oxygen supply means. It is sectional drawing cut | disconnected by the BB cutting line of FIG. 1, and is a figure which shows the piping structure of a magnetized air supply part, the piping structure of an off-gas induction pipe, and an oxygen supply pipe part. It is flow explanatory drawing which shows the procedure of the processing method of the organic waste by the low-temperature thermal decomposition processing apparatus of this invention. It is sectional drawing which shows the off-gas induction | guidance | derivation pipe | tube which concerns on the 2nd Embodiment of this invention, and is a part of sectional drawing equivalent to the cross section cut | disconnected by the BB cutting line of FIG. It is sectional drawing which shows the off-gas induction | guidance | derivation pipe | tube which concerns on the 3rd Embodiment of this invention, (A) is a part of sectional drawing equivalent to the cross section cut | disconnected by the CC cut line of FIG. (B) is a perspective view showing the inner tube, (C) is a cross-sectional view taken along the line EE in FIG. 13 (A), and (D) is a FF cut in FIG. 13 (A). It is sectional drawing cut | disconnected by the line. It is a figure which shows the off-gas purification | cleaning part which concerns on the 4th Embodiment of this invention, (A) is the side view which looked at the off-gas purification part from the right side, (B) looked at the off-gas purification part from the back side. It is the figure which saw through the wall of this side.

(First embodiment)
Hereinafter, a low-temperature pyrolysis treatment apparatus 1 according to a first embodiment of the present invention will be described with reference to the drawings. The processing objects described below are organic wastes such as raw garbage and plastics, including those that are separately separated or mixed, and are contained in the low-temperature pyrolysis apparatus 1. Crushed to a size that can be charged into

(Configuration of low-temperature pyrolysis apparatus 1)
1 to 4 are external configuration explanatory views showing a low-temperature pyrolysis apparatus 1 according to the first embodiment. 1 is a perspective view of the low-temperature pyrolysis treatment apparatus 1, FIG. 2 is a front view of the low-temperature pyrolysis treatment apparatus 1 of FIG. 1 as viewed from the front, and FIG. 3 is a low-temperature pyrolysis treatment of FIG. 4 is a side view of the apparatus viewed from the right side, and FIG. 4 is a rear view of the low-temperature pyrolysis apparatus 1 of FIG. 1 viewed from the rear. In addition, each figure demonstrated below demonstrates front side of illustration of FIG. 1 as the front, the right side is right side, the left side is left side, and the back side is back. Further, the grounding side of the low-temperature pyrolysis treatment apparatus 1 will be described as the lower side and the opposite side as the upper side.

  As shown in FIGS. 1 to 4, the low-temperature pyrolysis apparatus 1 includes a substantially rectangular parallelepiped main body portion 2, a first residue extraction portion 3 disposed on the lower front side outside the main body portion 2, and a lower rear rear side. A second residue extraction unit 4 disposed on the lower side, two magnetized air supply units 5 and 6 which are disposed outside the lower front side and magnetize and supply the air to the inside of the main body 2, and are disposed on the rear upper side It has an off-gas purification unit 7 that purifies a gas generated by pyrolyzing an object (hereinafter referred to as off-gas in the following description) and discharges it to the outside. An open / close door 8 is provided above the low-temperature pyrolysis apparatus 1 to open and close the inlet for the object to be processed. Moreover, the low-temperature pyrolysis processing apparatus 1 is supported by the bases 9 provided at the lower four corners.

  The 1st residue extraction part 3 and the 2nd residue extraction part 4 are provided in the front-back direction of the main-body part 2, and are arrange | positioned so that it may mutually communicate. As shown in FIGS. 1 and 2, the first residue extraction unit 3 on the front side is provided with an opening / closing door 13 supported by a hinge 12, and the handle 14 can be operated to open / close the opening / closing door 13. It is possible. As shown in FIG. 4, the second residue extraction part 4 on the rear side is similarly provided with an opening / closing door 16 supported by a hinge 15, and the opening / closing door 16 can be opened / closed by operating a handle 17. It has become. The two residue extraction units 3 and 4 are provided to discharge residues such as ash and ceramic ash generated when the processing object is decomposed from the respective residue extraction port units 18 to the outside.

  The two magnetized air supply units 5 and 6 are arranged on the left and right sides of the residue extraction unit 3 on the front side of the low-temperature pyrolysis treatment apparatus 1. The magnetized air supply units 5 and 6 have the same configuration, and magnetize the air taken from the air suction pipe 20 to decompose the low-temperature pyrolysis treatment apparatus 1 through the magnetized air supply pipe 21 (see FIG. 2). It has the function to supply in the processing tank 46 (refer FIG. 5). The configurations of the two magnetized air supply units 5 and 6 and the magnetized air supply pipe 21 will be described later with reference to FIGS. 5, 6, and 10.

  Two open / close lids 22 and 23 are provided in the front-rear direction on both the left and right sides of the low-temperature pyrolysis apparatus 1. The open / close lids 22 and 23 are arranged at positions facing each other on both the left and right sides, and are fixed so that they can be attached to or detached from the main body 2 with screws or the like. Each of the open / close lids 22 and 23 includes a grip portion 24. By removing the open / close lids 22 and 23, it is possible to perform maintenance of the piping disposed inside the main body 2 (see FIG. 10).

  The off-gas purification unit 7 is disposed behind the main body unit 2. In addition, let the off-gas purification | cleaning part 7 described in FIGS. 1-5 and FIGS. 7, 8 be the 1st Example. The off-gas purification section 7 has a substantially rectangular parallelepiped purification tank section 27, and an off-gas discharge pipe section 28 (connected to an off-gas induction pipe 25 that guides the off-gas generated during the thermal decomposition process in the main body 2 into the purification tank section 27 ( (See FIG. 4). The off-gas purification part 7 shown in FIGS. 1 to 4 purifies off-gas generated inside the main body part 2 with a purification liquid and discharges it outside, and supplies the purification liquid into the purification tank part 27. It has a tube 29. Moreover, it has the drain valve 30 which discharges | emits the liquid after the off-gas washing | cleaning collected in the septic tank part 27. FIG. As shown in FIGS. 3 and 4, a blower 31 as an exhaust means is provided above the septic tank portion 27. The blower 31 has a function of forcibly exhausting off-gas generated when the object to be processed is pyrolyzed out of the septic tank portion 27. The detailed configuration of the off-gas induction pipe 25 will be described later with reference to FIG. 7, and the detailed configuration of the off-gas purification unit 7 will be described later with reference to FIG.

  As shown in FIG. 4, a thermoelectric element 33, which is a power generation means, is installed on the outer peripheral surface of the offgas exhaust pipe portion 28. The thermoelectric element 33 generates power using a temperature difference between the off-gas discharge pipe portion 28 having substantially the same temperature as the decomposition treatment tank 46 (see FIGS. 5 and 7) and the outside air having a normal temperature. Therefore, the thermoelectric element 33 may be disposed on the outer periphery of the off-gas exhaust pipe portion 28, and the installation location is not limited as long as there is a place where the temperature difference from the outside air temperature is large. For example, you may install in the decomposition processing tank 46. FIG. Further, a temperature difference from the off-gas exhaust pipe portion 28 may be secured by using a cooling device or the like on the outside air side. Moreover, you may install not only the thermoelectric element 33 but another electric power generation means (For example, the generator etc. which utilized exhaust gas).

  The low temperature pyrolysis apparatus 1 has oxygen supply means 35 and 36 for supplying oxygen from the outside to the inside of the main body 2. As shown in FIGS. 1 and 2, part of the oxygen supply means 35, 36 protrudes in front of the main body 2 and includes a flow rate adjusting valve 37. The detailed configuration of the oxygen supply means 35 and 36 will be described later with reference to FIGS.

  As shown in FIGS. 1 and 3, the open / close door 8 has a function of opening and closing a loading port 39 provided in the upper wall 38 of the main body 2. The open / close door 8 can be opened and closed with the hinge 40 as a rotation support member. As the opening / closing mechanism of the opening / closing door 8, a link mechanism may be employed. When closing the open / close door 8, it is preferable to seal the inlet 39, and a gasket or the like is disposed between the periphery of the inlet 39 and the open / close door 38.

  Next, the configuration of the magnetized air supply units 5 and 6 will be described with reference to FIGS. 5, 6, and 10. 5 and 6 are cross-sectional views taken along the line AA in FIG. 1 and show the magnetized air supply unit 5 side. The magnetized air supply unit 6 has the same configuration, and the description will be given only for the magnetized air supply unit 5. FIG. 5 shows the overall configuration of the magnetized air supply units 5 and 6, and FIG. 6 is a diagram showing the magnetized air generator 45. FIG. 10 is a cross-sectional view taken along the line BB in FIG. 1 and shows the piping structure of the magnetized air supply sections 5 and 6, and the piping structure of the off-gas induction pipe 25 and the oxygen supply pipe sections 105 and 106. is there. First, the configuration of the main body 2 will be described. As shown in FIGS. 5 and 10, the main body 2 includes a decomposition treatment tank 46, an outer wall portion 47 that is a cover provided with a predetermined space from the side wall portion 46 </ b> A of the decomposition treatment tank 46, the decomposition treatment tank 46 and the outer wall. It comprises a bottom wall portion 48 that supports the portion 47 on the lower side, an upper wall 38 and an opening / closing door 8. The interior of the decomposition treatment tank 46 is a treatment chamber 49 that performs a thermal decomposition treatment of the object to be treated.

  The upper wall 38 has a double structure. By providing the space 38A, the off-gas generated in the processing chamber 49 is not condensed on the upper wall 38 due to the heat insulating effect of the space 38A (air layer). ing. A space 50 is provided between the side wall portion 46A and the outer wall portion 47 of the decomposition treatment tank 46, and off-gas generated in the processing chamber 49 due to the heat insulating effect of the space 50 (air layer) is condensed in the side wall portion 46A. It has a structure that does not. When off-gas is condensed, tar and soot adhere to these wall parts and must be cleaned frequently. However, by providing the space 38A and the space 50, the attachment of tar and soot can be reduced. It has become.

  As shown in FIG. 10, the decomposition treatment tank 46 has a shape in which the lower side is narrower in the left and right directions than the upper side on the slopes 46 </ b> B and 46 </ b> C, and its bottom space is a residue of the treatment object subjected to the thermal decomposition treatment. It is a storage chamber 52 for Z (ash, ceramic ash, etc.). Above the residue Z is a thermal decomposition layer 53, which is a region where the thermal decomposition of the object to be processed is mainly performed. Above the thermal decomposition layer 53 is a deposition layer 54 of the input processing object, and is also a drying region where the processing object is dried in the time until the processing object is thermally decomposed in the thermal decomposition layer 53. As the thermal decomposition proceeds in the thermal decomposition layer 53, the volume decreases, and the object to be processed in the deposition layer 54 moves to the thermal decomposition layer 53 by the decrease. In addition, between the storage chamber 52 and the thermal decomposition layer 53 is an ignition region where the seed flame 55 is disposed. Charcoal or heaters that are sufficiently ignited are used as the seed fire. The bottom of the storage chamber 52 is closed with a bottom plate 56.

  Next, the configuration of the magnetized air supply units 5 and 6 will be described with reference to FIGS. 5, 6, and 10. Reference is also made to FIGS. The magnetized air supply unit 5 and the magnetized air supply unit 6 are arranged so as to form a pair on both the left and right sides of the low-temperature pyrolysis apparatus 1 as shown in FIGS. The air supply unit 6 will be described as a representative example. As shown in FIG. 5, the magnetized air supply unit 6 communicates with the magnetized air generation unit 45 that magnetizes the taken-in air, the magnetized air supply pipe 21 that communicates with the magnetized air generation unit 45, and the magnetized air supply pipe 21. And a magnetized air discharge tube group 60 for discharging magnetized air into the decomposition treatment tank 46. The air storage chamber 61 may be supplied with air having a high oxygen concentration obtained by removing nitrogen from the nitrogen / oxygen separator.

  The magnetized air generator 45 includes a housing 63 divided into an air storage tank 61 and a magnetized air storage tank 62, an air suction pipe 20 that is an air suction means for sucking air from the outside into the air storage tank 61, and an air storage tank It has a magnetizer 64 that generates magnetized air arranged to communicate 61 and the magnetized air reservoir 62. As shown in FIG. 5, the magnetized air supply pipe 21 is a cylindrical member that extends from the front side to the rear side of the main body 2. The magnetized air supply pipe 21 has magnetized air discharge pipe groups 60 arranged at intervals in the length direction, and each is connected to the magnetized air supply pipe 21 by a nipple or the like. Each of the magnetized air discharge tube groups 60 is arranged at intervals from the magnetized air generating unit 45 side (front side) toward the rear side in the order of the magnetized air discharge tubes 60A to 60M. The magnetized air discharge pipe 60 </ b> A extends upward through the space 50 between the front side decomposition treatment tank 46 and the outer wall portion 47, bent upward by 90 degrees, and extended into the decomposition treatment tank 46. The magnetized air supply pipe 60 </ b> M is bent 90 degrees through the space 50 between the rear decomposition treatment tank 46 and the outer wall portion 47 and extended into the decomposition treatment tank 46.

  Next, the arrangement of the magnetized air discharge pipes 60A to 60M in the height direction will be described with reference to FIGS. As shown in FIGS. 5 and 10, the tips of the magnetized air discharge pipe 60A and the magnetized air discharge pipe 60M are extended above the pyrolysis layer 53, and the tip of the magnetized air discharge pipe 60A is rearward from the front side. It is extended toward the side. Moreover, the front-end | tip part of the magnetized air discharge pipe 60M is extended toward the front side from the back side. On the other hand, as shown in FIG. 10, the magnetized air discharge pipes 60 </ b> B, 60 </ b> D, 60 </ b> F, 60 </ b> H, 60 </ b> J, 60 </ b> L have discharge ports disposed below the pyrolysis layer 53 (positions where the seed fire 55 is disposed). The magnetized air discharge pipes 60C, 60E, 60G, 60I, and 60K are disposed at an intermediate position of the thermal decomposition layer 53. The magnetized air discharge pipes 60B to 60L of the magnetized air supply unit 5 are arranged to the left from the right side. The magnetized air discharge pipes 60A and 60M are extended so as to face each other in the left-right direction in the decomposition treatment tank 46. As shown in FIGS. The magnetized air supply pipes 60 </ b> A to 60 </ b> M are extended in the decomposition treatment tank 46 so as to be substantially horizontal, and have a shape that is cut by a slope so as to open downward.

  The magnetized air supply unit 6 arranged on the left side with respect to the magnetized air supply unit 5 is arranged to face the magnetized air supply unit 5 arranged on the right side. The configuration of the magnetized air supply unit 6 is the same as that of the magnetized air supply unit 5 except that the extending direction of the magnetized air discharge pipe group 60 in the decomposition treatment tank 46 is different. The magnetized air supply pipe section 6 shown in FIGS. 5 and 10 is given the same reference numeral as the magnetized air supply section 5. In the decomposition treatment tank 46, the left-side magnetized air discharge pipes 60A to 60M and the right-side magnetized air discharge pipes 60A to 60M are arranged so that the same reference numerals are opposed to each other. The area around the region where the magnetized air is discharged from the magnetized air discharge tube group 60 corresponds to the thermal decomposition layer 53. The detailed configuration of the magnetized air generator 45 will be described with reference to FIG.

  As shown in FIG. 10, the low temperature pyrolysis apparatus 1 is provided with a temperature sensor 57 that detects the internal temperature of the processing chamber 49. The temperature sensor 57 is preferably a thermocouple. The installation position of the temperature sensor 57 is a position where the temperature in the processing chamber 49 should be detected. However, in the example of FIG. The arrangement position of the temperature sensor 57 is preferably fixed along any one of the magnetized air discharge tube groups 60 from the viewpoint of protecting the temperature sensor 57 from the processing object. For example, one of the magnetized air discharge pipes 60F and 60H near the center in the front-rear direction of the magnetized air supply pipe 21 shown in FIG. Further, the temperature detection by the temperature sensor 57 may be performed at the center portion or the upper portion of the thermal decomposition layer 53 in the height direction, and a plurality of detection positions may be provided. Alternatively, the deposited layer (dry region) 54 and the space temperature above it (off-gas temperature) may be measured, and the residue is disposed near the outlet of the heated secondary decomposition tube 77 (see also FIG. 7). The temperature of (ceramic ash) Z may be detected. Information detected by the temperature sensor 57 is connected to an external controller (not shown) or the like by a cable 58. The controller has a display unit that displays the detected temperature and the like.

  As shown in FIG. 6, the magnetized air generation unit 45 includes an air suction unit that is an air suction unit that sucks air into the air storage tank 61 and the housing 63 partitioned into the air storage tank 61 and the magnetized air storage tank 62. It has the magnetizer 64 which is arrange | positioned so that the pipe | tube 20, the air storage tank 61, and the magnetized air storage tank 62 may be connected, and produces | generates magnetized air. The air suction pipe 20 is provided with a flow rate adjustment valve 65 at the inner end of the air storage tank 61 so that the flow rate of air to be sucked can be adjusted by rotating the handle 66.

  The magnetizer 64 includes a cylindrical holder 67 made of a nonmagnetic material, a ring-shaped permanent magnet 68 fitted in the center hole of the holder 67, and a cylindrical ring that fixes the permanent magnet 68 to the holder 67. A member 69 is provided. The permanent magnet 68 is fixed to the holder 67 so that the N pole and the S pole are arranged in the length direction. The air sucked from the outside is magnetized while passing through the magnetizer 64. Magnetized air may be referred to as ionized air. Of the air components, oxygen is mainly magnetized. That is, ionized oxygen is introduced into the decomposition treatment tank 46 from the magnetized air discharge pipes 60 </ b> A to 60 </ b> M via the magnetized air supply pipe 21. Note that air and magnetized air flow toward the decomposition treatment tank 46 due to the difference between the pressure in the decomposition treatment tank 46 and the atmospheric pressure (the decomposition treatment tank 46 has a negative pressure) (solid arrows in FIG. 6). ). As shown in FIG. 10, the magnetizers 64 are arranged in 12 rows, 4 rows in the vertical direction and 3 rows in the left and right directions, in the magnetized air supply unit 5 and the magnetized air supply unit 6 that are arranged on both the left and right sides, respectively. doing. However, the number and arrangement of the magnetizers 64 are not limited to this and can be selected as appropriate.

  Next, the configuration of the off-gas induction pipe 25 will be described with reference to FIGS. The off-gas induction pipe 25 shown in FIG. 7 describes the first embodiment among the embodiments.

  FIG. 7 is a cross-sectional view of the low-temperature pyrolysis apparatus 1 cut along the line CC in FIG. In FIG. 7, the configuration of the off-gas induction tube 25 will be mainly described. The off-gas induction pipe 25 extends in the front-rear direction along an off-gas suction pipe section 76 that goes downward along the inside of the side wall 75 on the front side of the decomposition treatment tank 46 and a bottom plate 56 that is the bottom of the decomposition treatment tank 46. A heating secondary decomposition pipe part 77 and an off-gas discharge pipe part 28 heading upward along the outer wall part 47 on the rear side of the decomposition treatment tank 46 are provided. The off-gas suction pipe portion 76 has a tip opening 78 disposed so as to be located near the upper wall 38 and communicates with the heating secondary decomposition pipe portion 77 on the lower side. One end 77 </ b> A of the heating secondary decomposition tube portion 77 is extended into the front residue extraction portion 3, and the other end 77 </ b> B is extended into the rear residue extraction portion 4. The end 77A is sealed with a lid member 80. Similarly, the end portion 77B is sealed with a lid member 80. The lid member 80 can be attached to or detached from the heating secondary decomposition tube portion 77.

The off gas discharge pipe portion 28 is extended along the outer wall portion 47 until the tip opening 79 reaches the inside of the purification tank portion 27 of the off gas purification portion 7. As shown in FIG. 10, the off-gas induction tube 25 is disposed at the approximate center in the left-right direction of the decomposition treatment tank 46. The heating secondary decomposition pipe portion 77 is disposed at the substantially center in the left-right direction of the residue Z storage chamber 52. That is, the heating secondary decomposition pipe portion 77 is disposed in the vicinity of the direct portion of the seed flame 55 in the approximate center of the residue Z. The off-gas induction pipe 25 sucks the high-temperature off-gas generated when the object to be processed is pyrolyzed from the off-gas suction pipe section 76, passes through the heated secondary decomposition pipe section 77, and passes from the off-gas discharge pipe section 28 to the off-gas purification section 7. To send. The off-gas that has passed through the off-gas purification unit 7 is purified and discharged to the outside. This off-gas flow is indicated by dotted arrows in FIG. The off-gas sucked from the off-gas suction pipe section 76 includes cracked gas generated from the upper part of the thermal decomposition tank 53, CO ₂ , moisture (water vapor), tar, etc., and has a low temperature of about 50 ° C. to 60 ° C. And the area | region of the residue (ceramic ash) Z immediately after thermally decomposing has become a high temperature range of 400 to 500 degreeC. Therefore, if off-gas is introduced into the heated secondary decomposition pipe portion 77 disposed in the residue Z region, the off-gas is heated by the residue Z, and the off-gas is thermally decomposed. Here, when the thermal decomposition in the processing chamber 49 is the primary decomposition, the off-gas decomposition in the heating secondary decomposition pipe portion 77 is the secondary decomposition. Therefore, it can be said that the processing chamber 49 is a primary decomposition chamber, and the inside of the heated secondary decomposition pipe portion 77 is a secondary decomposition chamber. The heated secondary decomposition pipe portion 77 may be disposed in the residue Z, may be disposed in the vicinity of the seed fire, may be disposed in the thermal decomposition layer 53, and is in a high temperature region where off-gas secondary decomposition is possible. I just need it.

  The off-gas purification unit 7 includes a blower 31. If the blower 31 is driven, off-gas generated by thermal decomposition can be forcibly exhausted to the outside. Therefore, the inside of the off-gas induction pipe 25 has a negative pressure relative to the inside of the processing chamber 49, and the off-gas in the processing chamber 49 is forcibly sucked. It becomes possible to do.

  The off-gas in the heated secondary decomposition pipe section 77 is secondarily decomposed, so that much of tar and the like is decomposed and sent to the off-gas purification section 7 as hydrocarbon or the like. It may adhere to the inside of the tube and hinder the flow of off-gas. As shown in FIG. 7, each of the left and right end portions 77A and 77B of the heating secondary decomposition tube portion 77 protrudes into the residue extraction portion 3 and the residue extraction portion 4, so that the residue extraction portion 3 and the residue When the open / close door 13 and the open / close door 16 of the take-out part 4 are opened, the lid member 80 sealing the heating secondary decomposition pipe part 77 appears. Therefore, if the lid member 80 is removed, it is possible to remove tar, soot and the like adhering in the heated secondary decomposition pipe portion 77.

  A partition plate 81 projects or is attached to the upper portion of the tip opening 78 of the off-gas suction pipe portion 76 upward. A partition plate 82 is provided downward from the upper wall 38. An off-gas passage is formed between the partition plate 81 and the partition plate 82. The partition plates 81 and 82 block the off-gas suction pipe portion 76 when the processing object enters from the inlet 39 through the tip opening 78 of the off-gas suction pipe portion 76. It has the function to prevent. However, the partition plates 81 and 82 do not hinder the flow of off-gas.

  Next, the configuration of the off-gas purification unit 7 will be described with reference to FIGS. 3 and 8. As shown in FIG. 3, the off-gas purification unit 7 is disposed on the upper side of the rear (back) of the main body 2. The off-gas exhaust pipe portion 28 is communicated with.

  8A and 8B are diagrams illustrating the off-gas purification unit 7, in which FIG. 8A is a perspective view of the off-gas purification unit 7 seen from the right side, and FIG. 8B is a rear view of the off-gas purification unit 7. It is the figure which saw through the wall of this side seeing from the side. As shown in FIGS. 8A and 8B, the off-gas purification unit 7 has a rectangular parallelepiped main body 85 and a blower 31 attached to a side wall 86 </ b> A on the back side of the main body 85. The wall facing the side wall 86A is referred to as a side wall 86B. The blower 31 includes a suction part 87 that passes through the side wall 86A and communicates with the septic tank part 27, and a discharge part 88 that discharges the sucked off gas to the outside. A well-known thing can be used as the air blower 31. FIG. The blower 31 can adjust the amount of blown air per unit time.

  A purifying liquid supply pipe 29 that supplies a purifying liquid that purifies off-gas in the purifying tank section 27 passes through the ceiling wall 89 of the main body section 85. The tip of the cleaning liquid supply pipe 29 is a nozzle 90 that is an injection means, and the cleaning liquid can be ejected like a shower or mist. Here, tap water or the like may be used as the purification liquid. Therefore, the purification liquid supply pipe 29 is a tap water supply pipe, and the end of the tap water supply pipe opposite to the nozzle 90 may be connected to the water pipe. The cleaning liquid supply pipe 29 is provided with a cock 91 (see FIG. 4), and the flow rate of the cleaning liquid per unit time can be adjusted.

  As shown in FIG. 8B, the septic tank portion 27 is divided into three by partition plates 93 and 94 in the horizontal direction of the drawing. The partition plate 93 extends from the bottom wall 95 of the main body portion 85 toward the ceiling wall 89, and a gap 93 </ b> A through which off gas passes is provided between the partition plate 93 and the ceiling wall 89. The partition plate 94 extends from the ceiling wall 89 of the main body 85 toward the bottom wall 95, and a gap 94 </ b> A through which off gas passes is provided between the partition plate 94 and the bottom wall 95. That is, the septic tank portion 27 is divided into three in the left-right direction by the partition plates 93 and 94 to form an off-gas flow path. The partition plates 93 and 94 are in close contact with or in close contact with the longitudinal side walls 86A and 86B of the main body 85. A space defined by the partition plate 93 and the right side wall 96 is defined by an off-gas channel 98, and a space defined by the partition plate 93 and the partition plate 94 is defined by an off-gas channel 99, the partition plate 94 and the left side wall 97. This space is referred to as an off-gas channel 100.

  The off-gas generated by the thermal decomposition of the object to be treated is secondarily decomposed by the heated secondary decomposition pipe 77, but there are some which are not decomposed sufficiently and are sent to the off-gas purification unit 7 containing tar and the like. Such off-gas flows in the order of the off-gas flow path 98, the off-gas flow path 99, and the off-gas flow path 100 from the off-gas discharge pipe portion 28, as indicated by solid arrows in FIG. The reason why the off gas flows in such a flow path is that the blower 31 is disposed downstream (terminal portion) of the off gas flow path 100. In the off-gas flow path 99, the cleaning liquid (for example, tap water) is injected from the nozzle 90 like a shower or mist (represented by a dotted arrow in the figure). Tars contained in the off gas, which are easily dissolved in the purification solution, particulate matter, odors, and the like are washed away, stored in the bottom of the purification tank unit 27, and purified and deodorized off gas is discharged to the outside. Therefore, the off gas flow path 99 is an off gas purification region. In this way, the deodorized and purified off-gas is discharged from the discharge unit 88 to the outside. Tar or the like stored in the bottom of the septic tank 27 is discharged from the drain valve 30 (see FIG. 3) periodically and at any time together with the cleaning liquid.

  Next, the configuration of the oxygen supply means 35 and 36 will be described with reference to FIGS. Reference is also made to FIGS. Here, the oxygen supplied by the oxygen supply means 35 and 36 is preferably air from which nitrogen has been removed by a nitrogen / oxygen separator, and it is not pure oxygen, and even if it is not pure oxygen, undecomposed residue contained in organic waste and residue Z It is effective as a material that facilitates thermal decomposition. Hereinafter, this is referred to as oxygen.

  FIG. 9 is a cross-sectional view taken along the line DD in FIG. 1 and shows the oxygen supply means 35. As shown in FIGS. 1 and 2, the oxygen supply means 35, 36 are arranged so as to be paired on both the left and right sides of the low-temperature pyrolysis apparatus 1 and so as to face each other. As shown in FIG. 9, the oxygen supply means 35 includes an oxygen supply pipe part 105 that supplies oxygen, and oxygen discharge pipe parts 105 </ b> A to 105 </ b> F that communicate with the oxygen supply pipe part 105 and discharge oxygen into the decomposition treatment tank 46. have.

  As shown in FIG. 9, the oxygen supply pipe portion 105 extends through the outer wall portion 47 and the side wall portion 46 </ b> A on the front side of the decomposition treatment tank 46 to the vicinity of the outer wall portion 107 on the rear side. The rear side end portion 108 of the oxygen supply pipe portion 105 is sealed. Further, the front end 109 of the oxygen supply pipe 105 is open so that oxygen can be sucked. A flow rate adjustment valve 37 that adjusts the flow rate of oxygen to be sucked per unit time is provided at the front end 109. As shown in FIGS. 9 and 10, the oxygen supply pipe portion 105 is extended in the front-rear direction along the outside of the slope portion 46B of the decomposition treatment tank 46 and is brought into contact with the slope portion 46B or at the nearest position. Be placed. This is effective for heating oxygen in the oxygen supply pipe part 105 with heat from the decomposition treatment tank 46. Similarly to the left oxygen supply pipe 105, the right oxygen supply pipe 106 (see FIG. 2) extends in the front-rear direction along the outside of the slope 46C of the decomposition treatment tank 46. It is brought into contact with the slope portion 46C or arranged at the nearest position.

  In the oxygen supply pipe portion 105, oxygen discharge pipe portions 105A to 105F are arranged in the length direction, and each is connected to the oxygen supply pipe portion 105 by a nipple or the like. As shown in FIG. 10, the oxygen discharge pipe portions 105 </ b> A to 105 </ b> F on the left side are bent downward from the connection position with the oxygen supply pipe portion 105 and extended to the right side to store the residue Z. The left side wall 113 surrounding the chamber 52 passes through and is opened to the storage chamber 52. The opening 114 is disposed between the bottom plate 56 of the storage chamber 52 and the heating secondary decomposition pipe portion 77. A protective plate 115 that protects the opening 114 from being blocked by the residue Z is provided in the oxygen discharge direction of the opening 114.

  On the other hand, oxygen discharge pipes 106 </ b> A to 106 </ b> F are arranged and connected to the oxygen supply pipe section 106 on the right side, similarly to the oxygen supply pipe section 105 on the left side. Then, as shown in FIG. 10, the oxygen discharge pipes 106A to 106F on the right side face downward from the connection position with the oxygen supply pipe 106, and are bent down by 90 degrees beyond that to the left. It extends, passes through the right side wall 110 surrounding the residue Z storage chamber 52, and is opened to the storage chamber 52. The opening 114 is disposed between the bottom plate 56 of the storage chamber 52 and the heating secondary decomposition pipe portion 77. A protective plate 115 is provided in the oxygen discharge direction of the opening 114 to protect the opening 111 from being blocked by the residue Z.

  The oxygen discharge pipes 105A to 105F connected to the left oxygen supply pipe 105 and the oxygen discharge pipes 106A to 106F connected to the right oxygen supply pipe 106 are arranged to face each other. In addition, oxygen can be supplied to the residue Z in the storage chamber 52. The oxygen supply means 35 and 36 promote thermal decomposition of the undecomposed residue contained in the residue Z by supplying oxygen to the residue Z of the object to be processed.

(Decomposition processing method of processing object by low-temperature pyrolysis processing apparatus 1)
Then, the processing method of the organic waste which is a process target object by the low-temperature pyrolysis processing apparatus 1 is demonstrated. FIG. 11 is an explanatory flow chart illustrating the procedure of the organic waste processing method performed by the low-temperature pyrolysis apparatus 1 described with reference to FIGS. First, as a preparatory work, the residue extraction units 3 and 4, the magnetized air supply units 5 and 6, and the oxygen supply units 35 and 36 are closed, and the off-gas purification unit 7 is in an initial state in which driving is stopped. First, the opening / closing door 13 of the first residue take-out unit 3 is opened, the seed flame 55 is introduced into the processing chamber 49, and the opening / closing door 13 is closed (step S1). The seed fire 55 is charcoal that has been sufficiently ignited. In addition, the seed flame 55 is placed so as to pass to the magnetized air discharge pipes 60B, 60D, 60F, 60H, 60J, and 60L in the lower left and right stages of the magnetized air discharge pipes 60A to 60M. In addition, you may perform the injection | throwing-in of the seed flame 55 from the 2nd residue extraction part 4 side. Moreover, you may throw in from both the residue extraction parts 3 and 4 simultaneously or in succession.

  Subsequently, the blower 31 is started, the flow rate adjustment valve 65 of the magnetized air supply units 5 and 6 is opened, and negative ionized magnetized air is supplied into the processing chamber 49, and a residue storage chamber is supplied from the oxygen supply means 35 and 36. Oxygen is supplied into 52 (step S2). By starting the blower 31, it becomes possible to stably supply a predetermined amount of magnetized air and oxygen into the processing chamber 49.

  The magnetized air reacts with the organic substance by the heat of the seed flame 55 and raises the temperature. For this reason, in the lower layer of the pyrolysis layer 53 (around the seed flame 55), the temperature rises by supplying magnetized air, and the oxygen supplied from the oxygen supply means 35, 36 also promotes the temperature rise. A region where the temperature around the seed flame 55 is high may be referred to as a core. However, since organic substances can be decomposed at a lower temperature than combustion, this thermal decomposition is sometimes referred to as fumigation or fumigation separately from combustion. When the core temperature reaches 400 ° C. to 500 ° C., the object to be treated is thrown into the treatment chamber 49 from the inlet 39 (step S3).

  Next, the temperature near the core is detected by the temperature sensor 57 (step S4). By maintaining the temperature in the processing chamber 49 in the range of 300 ° C. to 500 ° C., the processing object can be burnt. Although this temperature varies depending on the material of the object to be processed and the water content, the efficiency of thermal decomposition can be increased in the range of 400 ° C to 500 ° C. Therefore, in the present embodiment, the temperature in the processing chamber 49 is maintained in the range of 400 ° C. to 500 ° C. When the detected temperature is 500 ° C. or higher, the flow rate adjusting valve 65 is operated to reduce the supply amount of magnetized air (step S5). When the temperature is 400 ° C. or lower, the flow rate adjusting valve 65 is operated to increase the supply amount of magnetized air (step S6). When the detected temperature is in the range of 400 ° C. to 500 ° C. (OK), the processing object is further charged (step S7). The increase / decrease in the oxygen supply amount may be adjusted in accordance with the increase / decrease in the supply amount of the magnetized air. From this step, the thermal decomposition treatment by the low-temperature pyrolysis treatment apparatus 1 is in full operation. When the processing object is introduced, the off-gas purification unit 7 is driven. That is, the blower 31 is driven to supply the cleaning liquid (step S8).

  Off-gas is generated by thermal decomposition (burning) of the object to be treated. This off-gas is secondarily decomposed in the heated secondary decomposition pipe section 77, and the off-gas induction pipe 25 (off-gas suction pipe section 76, heated secondary decomposition pipe section 77 and It is sucked from the inside of the processing chamber 49 through the off-gas discharge pipe section 28). The off gas passes through the off gas passages 98, 99, and 100 of the off gas purification unit 7 and is discharged to the outside. When the off-gas passes through the off-gas flow path 99, it is purified and discharged by a shower or mist of a purifying liquid (for example, tap water). The off-gas generated by thermal decomposition of the object to be treated includes miscellaneous bacteria and off-flavor components contained in pyroligneous acid liquid, tar, and garbage, but many of these are decomposed in a considerable amount by secondary decomposition of off-gas, or Sterilized. However, the off-gas purification unit 7 contains tars or odor components that cannot be decomposed. By washing such off-gas with shower or mist cleaning, pyroligneous acid, tar, etc. are not contained, or are discharged to the outside as off-gas with less off-flavor. The liquid containing wood vinegar and tar washed away from the off-gas is stored in the bottom of the off-gas purification tank 27 together with the purification liquid, and then discharged to the outside by opening the drain valve 30. However, the off-gas (exhaust gas) discharged to the outside may contain odors or dioxins. An off-gas purification unit that further detoxifies the exhaust gas will be described later with reference to FIG. 14 as a second embodiment of the off-gas purification unit.

  The off gas generated in the processing chamber 49 is a low temperature gas of about 50 to 60 ° C. The heated secondary decomposition tube portion 77 that sucks such off-gas is heated by the high-temperature residue Z or the core portion. This off-gas is reheated in the heated secondary decomposition pipe section 77 and is secondarily decomposed. Tar and the like are thermally decomposed and sent to the off-gas purification unit 7 as a gas mainly composed of hydrocarbons, for example.

  Oxygen supplied from the oxygen supply means 35 and 36 is supplied to the residue Z region of the object to be processed. This is because oxygen is supplied to an undecomposed residue (processing target that has not been decomposed) mixed in the residue Z so that the undecomposed residue is thermally decomposed and the undecomposed residue is not discharged to the outside.

  The inside of the processing chamber 49 has a negative pressure with respect to the atmospheric pressure because an upward air flow is generated as the temperature near the core rises. If the flow rate adjustment valve 65 is released, the air is supplied from the outside to the magnetized air supply unit 5. 6 continues to be sucked and soot continues. Further, since the blower 31 is arranged at the most downstream side of the off-gas flow path of the off-gas purification unit 7 and the off-gas in the processing chamber 49 is forcibly exhausted, the pressure difference between the inside and outside of the processing chamber 49 becomes large, and magnetized air is processed. It is possible to facilitate the suction into the chamber 49 and to facilitate the suction of oxygen from the oxygen supply means 35 and 36. The object to be treated is pyrolyzed and carbonization (ashing) and ceramic ashing proceed.

  While the thermal decomposition process is being performed, the temperature detection (step S9) is performed constantly or at predetermined intervals, and when it is detected that the temperature is equal to or higher than a predetermined temperature (for example, 500 ° C. or higher), the magnetized air supply amount The oxygen supply amount is decreased (step S10), and when it is detected that the temperature is lower than a predetermined temperature (for example, 400 ° C. or lower), the magnetized air supply amount and the oxygen supply amount are increased (step S11). The adjustment of the oxygen supply amount means an auxiliary function for maintaining the temperature of the residue Z at a high temperature and maintaining the temperature of the thermal decomposition layer 53 at a temperature capable of being decomposed. Next, it is detected whether or not the thermal decomposition amount of the object to be processed has reached a predetermined amount (step S12). When the predetermined amount has been reached, the supply of magnetized air is stopped and the oxygen supply is stopped (step S13). ). The blower 31 is driven and the purification liquid is supplied when it is detected that the inside of the processing chamber 49 is at a predetermined temperature or lower (for example, several tens of degrees C. or lower: OK) (step S14). Is stopped (step S15), and the process ends. When the temperature in the processing chamber 49 is equal to or higher than the predetermined temperature (NO), the process waits until the temperature becomes lower than the predetermined temperature.

  The low-temperature pyrolysis treatment apparatus 1 described above has a decomposition treatment tank 46 into which an object to be treated is charged, and magnetized air supply units 5 and 6 for supplying magnetized air into the decomposition treatment tank 46. In addition, the low-temperature pyrolysis apparatus 1 sucks off-gas generated when the object to be processed is pyrolyzed in the decomposition treatment tank 46 and heats the secondary decomposition pipe portion 77 disposed at the bottom of the decomposition treatment tank 46. And a purifier tank 27 disposed on the off-gas discharge side of the off-gas guide pipe 25, and a blower 31 that is an exhaust means for discharging off-gas passing through the purifier tank 27 to the outside. An off-gas purification unit 7 is provided.

  Off-gas (exhaust gas) generated by the thermal decomposition treatment passes through the deposition layer 54 and is about 50 ° C to 60 ° C. By reheating the heated secondary decomposition pipe portion 77 through which the offgas passes, in the residue Z at the bottom of the decomposition treatment tank 46, the offgas is secondarily decomposed, and tars contained in the offgas are decomposed into hydrocarbons and the like. It can be sent to the off-gas purification unit 7 and germs contained in the garbage can be sterilized by thermal decomposition and discharged.

  Further, a blower 31 that is an exhaust means is disposed in the offgas purification unit 7 that communicates with the offgas induction pipe 25. By providing the transmitter 31, the offgas (exhaust gas) generated in the processing chamber 49 is forcibly exhausted through the offgas induction pipe 25. Accordingly, the inside of the processing chamber 49 is negative with respect to the atmospheric pressure, and this state can be maintained by the blower 31, so that magnetized air is forcibly sucked into the processing chamber 49. As a result, there is a margin in the magnetized air suction amount, and the suction amount can be easily adjusted.

  The off-gas induction pipe 25 includes an off-gas suction pipe section 76 that sucks off gas disposed along the inside of the side wall 75 of the decomposition treatment tank 46, and a heated secondary decomposition pipe section 77 that communicates with the off-gas suction pipe section 76. Further, an off-gas discharge pipe portion 28 that communicates with the heating secondary decomposition pipe portion 77 and is disposed outside the decomposition treatment tank 46 and guides off-gas to the purification tank portion 27 is provided.

  The off-gas suction pipe section 76 reaches the heated secondary decomposition pipe section 77 through the deposited layer 54 and the thermal decomposition layer 53 of the processing object that has been input. The off-gas suction pipe section 76 sucks low-temperature off-gas, but the off-gas is heated by passing through the thermal decomposition layer 53. Therefore, the off-gas that has been warmed to some extent is supplied to the heated secondary decomposition tube portion 77, and the off-gas reheating in the heated secondary decomposition tube portion 77 can be performed in a short time.

  The low-temperature pyrolysis apparatus 1 includes a decomposition treatment tank 46, two magnetized air supply units 5 and 6, an off-gas induction pipe 25, and an off-gas purification unit 7. The off-gas induction pipe 25 is an off-gas suction pipe. Part 76, heating secondary decomposition pipe part 77, and off-gas exhaust pipe part 28. In this way, thermal decomposition of the object to be processed is promoted by the magnetized air, and the off-gas generated in the processing chamber 49 can be secondarily decomposed by the heated secondary decomposition pipe portion 77.

  Further, the off-gas purification unit 7 includes a purification liquid supply pipe 29 that supplies a purification liquid (for example, tap water), and a nozzle 90 that is an injection unit that injects the purification liquid into the off-gas. The off-gas (exhaust gas) generated by the thermal decomposition of the object to be treated includes wood vinegar, tar, off-flavor components, and the like. The off gas containing these is washed in the off gas purifying section 7 by shower cleaning or mist cleaning, so that it can be discharged to the outside as an off gas that does not contain pyroligneous acid liquid or tar or has a low odor. It should be noted that the liquid containing the vinegar and tar washed away from the off-gas is stored in the bottom of the off-gas purification tank unit 27 together with the purification liquid, and then discharged to the outside by opening the drain valve 30 and recovered. A gentle organic waste disposal device can be realized. As described above, the off-gas supplied to the off-gas purification unit 7 is secondarily decomposed by the heated secondary decomposition pipe unit 77, so that the off-gas that has passed through the off-gas purification unit 7 is rendered harmless and externally To be discharged.

  Further, the low-temperature pyrolysis treatment apparatus 1 has oxygen supply means 35 and 36 for supplying oxygen into the decomposition treatment tank 46. The oxygen supply means 35 connects the oxygen discharge pipe sections 105A to 105F to the oxygen supply pipe section 105 that takes in oxygen from the outside, and the oxygen supply means 36 connects the oxygen discharge pipe section 106A to the oxygen supply pipe section 106 that takes in oxygen from the outside. -106F are connected, and oxygen is supplied to the storage chamber 52 of the residue Z. In this way, by supplying oxygen to the residue Z of the object to be processed, the thermal decomposition of the undecomposed residue mixed in the residue Z is promoted. As a result, when the residue Z is discharged, it is possible to prevent the high-temperature undecomposed residue from being discharged. Moreover, since the thermal decomposition of the thermal decomposition layer 53 is promoted by supplying oxygen, the thermal decomposition efficiency can be increased.

  Since the magnetized air supply unit described in the prior art (Patent Document 2) is configured so that a permanent magnet and a flow rate adjusting valve are paired for each of a large number of magnetized air discharge pipes, the number of components increases. The piping structure becomes complicated. The magnetized air supply units 5 and 6 according to the present embodiment include an air storage tank 61 and a magnetized air storage tank 62, an air suction pipe 20 that is an air suction means for sucking air from the outside into the air storage tank 61, and air It has a magnetized air generator 45 including a magnetizer 64 that communicates the reservoir 61 and the magnetized air reservoir 62. The magnetized air supply pipe 21 communicates with the magnetized air storage tank 62, and magnetized air discharge pipes 60 </ b> A to 60 </ b> M that send magnetized air into the decomposition treatment tank 46 communicate with the magnetized air supply pipe 21. According to such a configuration, one magnetized air supply pipe 21 is provided for one magnetized air storage tank 62, and the magnetized air discharge pipes 60 </ b> A to 60 </ b> M can be arranged in the length direction of the magnetized air supply pipe 21. As a result, the number of components is reduced, and the piping structure can be simplified. As a result, there is an effect that maintenance can be easily performed.

  The low-temperature pyrolysis apparatus 1 includes a thermoelectric element 33 that is a power generation unit that generates power based on a temperature difference between the decomposition treatment tank 46 and the outside air. The thermoelectric element 33 uses one of the high temperature side detection surfaces to the off-gas discharge pipe portion 28 having the same temperature as the decomposition treatment tank 46 and exposes the other low temperature side detection surface to the outside air, thereby utilizing the temperature difference between the two. And generate electricity. If the electric power generated here is used for driving the blower 31 as an exhaust means or driving the controller, energy can be saved by effectively using thermal energy. Further, the thermoelectric element 33 has an aspect that it is environmentally friendly because there is no discharge.

(Second Embodiment)
Next, an off-gas induction tube 120 according to a second embodiment will be described with reference to FIG. The second embodiment is configured such that maintenance of the off-gas induction pipe 25 according to the first embodiment shown in FIG. 7 can be easily performed.

  FIG. 12 is a cross-sectional view showing the off-gas induction tube 120 according to the second embodiment, and is a part of a cross-sectional view corresponding to a cross section taken along the line CC in FIG. The same components as those of the off-gas induction pipe 25 of the first embodiment are described with the same reference numerals. Of the off-gas induction pipe 120, the construction of the off-gas suction pipe section 76, the heated secondary decomposition pipe section 77, and the off-gas discharge pipe section 28 can follow the same construction as that of the first embodiment, so that the description thereof is omitted. As shown in FIG. 12, cylindrical inner cylinders 121 and 122 are inserted into the tube of the heated secondary decomposition tube portion 77. The inner cylindrical tube 121 can be inserted into the heating secondary decomposition tube portion 77 from the front end 123 of the heating secondary decomposition tube portion 77 or can be extracted from the heating secondary decomposition tube portion 77. Further, the inner cylindrical tube 122 can be inserted from the rear side end portion 124 of the heating secondary decomposition tube portion 77 or extracted from the heating secondary decomposition tube portion 77. The inner tube 121 is provided with a hole 125 that communicates with the off-gas suction tube 76. The inner tube 122 is provided with a hole 126 that communicates with the off-gas exhaust pipe 28.

  The front end 127 of the inner tube 121 is sealed with a lid member 128. The lid member 128 can be attached to or detached from the inner cylindrical tube 121, and can be fitted into or removed from the heated secondary decomposition tube portion 77. Further, the rear side end portion 129 of the inner tube 122 is sealed with a lid member 130. The lid member 130 can be attached to or detached from the inner cylindrical tube 122, and can be fitted into or removed from the heating secondary decomposition tube portion 77.

  The lid member 128, the heated secondary decomposition pipe section 77, and the inner cylinder pipe 121 have a regulating means (not shown) that regulates the circumferential position of the hole 125 so that the hole 125 communicates with the off-gas supply pipe section 76. Is provided. As the restricting means, for example, a convex portion may be provided on the lid member 128, and the heating secondary decomposition tube portion 77 and the inner cylindrical tube 121 may be provided with a concave portion capable of fitting the convex portion. In addition, the lid member 130, the heated secondary decomposition pipe portion 77, and the inner cylindrical pipe 122 also have a regulating means (not shown) that regulates the circumferential position so that the hole 126 communicates with the off-gas supply pipe portion 76. Is provided. As the restricting means, for example, a convex portion may be provided on the lid member 130, and a concave portion capable of fitting the convex portion may be provided on the heating secondary decomposition pipe portion 77 and the inner cylindrical tube 122. The lengths of the inner cylinder pipe 121 and the inner cylinder pipe 122 are set so that a slight gap 131 exists at the respective front ends facing each other when attached to the heating secondary decomposition pipe section 77. Off-gas generated by the thermal decomposition treatment can be discharged to the outside from the off-gas purification unit 7 through the inner cylinders 121 and 122. In FIG. 12, the flow of off-gas is indicated by dotted arrows.

  The off-gas induction tube 120 according to the second embodiment described above is inserted into the tube of the heated secondary decomposition tube portion 77 from the front end 123 of the heated secondary decomposition tube portion 77, or the heated secondary decomposition tube. A cylindrical inner tube 121 that can be extracted from the portion 77, and a cylindrical inner tube 121 that can be inserted or extracted from the rear end 124 of the heated secondary decomposition tube portion 77. A tube 122 is provided. The inner cylindrical pipes 121 and 122 communicate with the off-gas suction pipe section 76 and the off-gas discharge pipe section 28, respectively. When the inner cylinder pipes 121 and 122 are extracted from the heated secondary decomposition pipe section 77, the inner cylinder pipes 121 and 122 may be extracted by opening the open / close doors 13 and 14 of the residue extraction section 3 or the residue extraction section 4. In addition, when inserting the inner cylinder pipes 121 and 122 into the heating secondary decomposition pipe section 77, the convex portions provided on the lid members 128 and 130 are first formed into the concave sections of the inner cylinder pipe 121 and the inner cylinder pipe 122. Then, the inner cylindrical tubes 121 and 122 may be pushed into the heated secondary decomposition tube portion 77 so that the convex portions of the lid members 128 and 130 are fitted into the recessed portions of the heated secondary decomposition tube portion 77, respectively.

  The off-gas generated by the thermal decomposition of the object to be processed includes pyroligneous acid liquid, tar, and the like, which are decomposed to some extent by the secondary decomposition, but part of them adhere to the heated secondary decomposition pipe portion 77. As a result, while the low-temperature pyrolysis treatment apparatus 1 is operating for a long time, the pyroligneous acid solution, tar, or soot may clog the heated secondary decomposition pipe portion 77 and hinder the flow of off-gas. When the length of the heated secondary decomposition tube portion 77 is as long as, for example, 200 cm, cleaning of the heated secondary decomposition tube portion 77 is difficult. Therefore, the inner cylinder pipes 121 and 122 can be easily provided by providing the inner cylinder pipes 121 and 122 in the heating secondary decomposition pipe section 77, extracting the inner cylinder pipes 121 and 122 forward and rearward, and removing the lid members 128 and 130, respectively. It becomes possible to wash it. In addition, the inner cylinder pipe 121 and the inner cylinder pipe 121 may be connected to one and inserted or removed from the front side or the rear side.

  The off-gas drawn through the inner cylinders 121 and 122 from the off-gas exhaust pipe 28 to the off-gas purification unit 7 contains wood vinegar and tar as described above even after secondary decomposition. The off-gas purification unit 7 is washed away by shower cleaning or mist cleaning. However, the off gas entering the off gas purification unit 7 is better as the amount of the wood vinegar or tar is smaller. A configuration of an off-gas induction tube that enables off-gas with reduced pyroligneous acid solution or tar to be put into the off-gas purification unit 7 will be described with reference to FIG. 13 as a third embodiment.

(Third embodiment)
FIG. 13 is a cross-sectional view of an off-gas induction tube 140 according to the third embodiment, and FIG. 13A is a part of a cross-sectional view corresponding to a cross section taken along the line CC in FIG. , (B) is a perspective view showing the inner tube, (C) is a cross-sectional view taken along the line EE in FIG. 13 (A), and (D) is an F- in FIG. 13 (A). It is sectional drawing cut | disconnected by F cut line. The same components as those of the off-gas induction pipes 25 and 120 of the first and second embodiments will be described with the same reference numerals. Of the off-gas induction pipe 140, the off-gas suction pipe section 76, the heated secondary decomposition pipe section 77, and the off-gas discharge pipe section 28 can follow the same configurations as those of the first and second embodiments. Description is omitted.

  As shown in FIG. 13, cylindrical inner tube 141, 142 is inserted in the tube of the heated secondary decomposition tube 77. The inner tube 141 can be inserted into the heating secondary decomposition tube 77 from the front end 143 of the heating secondary decomposition tube 77 or can be extracted from the heating secondary decomposition tube 77. Further, the inner cylindrical tube 142 can be inserted from the rear end 144 of the heating secondary decomposition tube portion 77 or extracted from the heating secondary decomposition tube portion 77. As shown in FIGS. 13A and 13B, the inner tube 141 has a cylindrical end 143 at the front end 143 and a cylindrical end 146 at the rear end. Between the cylindrical portion 145 and the cylindrical portion 146, the upper side and the lower side are cut to form beam portions 147 and 148 divided into a left side and a right side. The beam portions 147 and 148 have an arc shape in which the cylindrical portions 145 and 146 are extended. An upper gap 149 between the beam portion 147 and the beam portion 148 communicates with the off-gas suction pipe portion 76. Since the cylindrical tube 142 has the same configuration as the cylindrical tube 141, the cylindrical tube 142 is denoted by a reference numeral superimposed on FIG. In FIG. 13B, illustration of the partition plates 155 to 162 is omitted.

  As shown in FIGS. 13A and 13B, the inner tube 142 has a cylindrical portion 150 at the rear end 144 and a cylindrical portion 151 at the front end. Between the cylindrical portion 150 and the cylindrical portion 151, the upper side and the lower side are cut to form beam portions 152 and 153 that are divided into a left side and a right side as shown in FIG. 13B. Yes. The beam portions 152 and 153 have an arc shape in which the cylindrical portions 150 and 151 are extended. The offgas discharge pipe portion 28 communicates with the upper gap 154 between the beam portion 152 and the beam portion 153.

  As shown in FIGS. 13A, 13 </ b> C, and 13 </ b> D, a plurality of partition plates are provided inside the inner cylindrical tubes 141 and 142. In the inner tube 141, partition plates 155 to 158 are arranged in order from the cylindrical portion 145 side to the cylindrical portion 146 side. The partition plates 155 to 158 have a half-moon shape as shown on the lower left side of FIG. 13A, and the white portions shown in the figure are off-gas flow paths. The left half of the partition plate 155 is an off-gas channel, and the partition plate 156 is arranged so that the partition plate 155 is rotated 90 degrees counterclockwise. The partition plate 157 is disposed so that the partition plate 156 is rotated 90 degrees counterclockwise, and the partition plate 158 is disposed so that the partition plate 157 is rotated 90 degrees counterclockwise. In addition, although the partition plate 155 shown to FIG. 13 (A) is seen from back, all the other partition plates 156-162 are also seen from back.

  On the other hand, partition plates 159 to 162 are disposed in the inner tube 142 in order from the cylindrical portion 151 side to the cylindrical portion 150 side. The partition plates 159 to 162 have a half-moon shape as shown on the lower right side of FIG. 13A, and the white portions shown in the figure are off-gas flow paths. The right half of the partition plate 159 is an off-gas channel, and the partition plate 160 is arranged so that the partition plate 159 is rotated 90 degrees counterclockwise. The partition plate 161 is disposed so that the partition plate 160 is rotated 90 degrees counterclockwise, and the partition plate 162 is disposed such that the partition plate 161 is rotated 90 degrees counterclockwise.

  When the off-gas sucked from the off-gas suction pipe portion 76 passes through the cylindrical tubes 141 and 142, it proceeds while drawing a circle by the partition plates 155 to 162 and is discharged from the off-gas discharge pipe portion 28. The interval, number, shape, and arrangement of the partition plates are selected so that they can meander within a range that does not greatly impede the flow of off-gas. The cylindrical portions 145 and 146 and the cylindrical portions 151 and 150 are provided at both ends of each of the inner cylindrical tubes 141 and 142 because the cylindrical tubes 141 and 142 can be easily inserted into and extracted from the heated secondary decomposition tube portion 77. This is to make the beam portions 147 and 148 and the beam portions 152 and 153 difficult to bend. The partition plates 155 to 162 are attached to the inner cylindrical tubes 141 and 142 by a fixing method such as welding. The cylindrical tubes 141 and 142 may be a single cylindrical tube in which the cylindrical portion 146 and the cylindrical portion 151 are connected.

  The off-gas induction tube 140 according to the third embodiment described above is inserted into the tube of the heating secondary decomposition tube portion 77 from the end of the heating secondary decomposition tube portion 77 or the heating secondary decomposition tube portion 77. Inner cylindrical tubes 141 and 142 that can be pulled out from the end portions are provided, and the inner cylindrical tubes 141 and 142 communicate with the off-gas suction tube portion 76 and the off-gas discharge tube portion 28. The inner cylinder pipes 141 and 142 are provided with partition plates 155 to 162 that meander (turn while drawing a circle) to meander the flow of off-gas. Thus, by providing the partition plates 155 to 162 and causing the off gas to meander, a part of the wood vinegar or tar contained in the off gas is adhered to the inner tube 141 or 142 (including the partition plates 155 to 162). Further, it becomes possible to reduce pyroligneous acid liquid, tar and the like in the off-gas sent to the off-gas purification unit 7. As a result, it is possible to reduce the driving load of the off-gas purification unit 7 and increase the degree of purification of off-gas discharged to the outside. Moreover, since the upper gaps 149 and 154 are provided in each of the inner cylindrical tubes 141 and 142, the inside can be easily cleaned.

(Fourth embodiment)
The off-gas discharged to the outside may contain dioxins. Dioxins can be removed by burning at 800 ° C. or higher. An off-gas purification unit 170 that detoxifies the exhaust gas of dioxins will be described with reference to FIG. Note that components other than the off-gas purification unit 170 are denoted by the same reference numerals as those in the above-described embodiment.

  14A and 14B are diagrams showing an off-gas purification unit 170 according to the fourth embodiment. FIG. 14A is a side view of the off-gas purification unit 170 viewed from the right side, and FIG. 14B shows the off-gas purification unit 170. It is the figure which saw through the wall of this side seeing from the back side. The off-gas purification unit 170 includes a burner 171 as combustion means, a combustion chamber 172 that feeds off-gas from the off-gas discharge pipe unit 28 and burns off-gas by the burner 171, and a cover member 173 that surrounds the combustion chamber 172. The burner 171 uses off-gas fuel, liquid fuel (including mist fuel), or the like as fuel, and a well-known one can be used. The burner 171 includes a nozzle 174 that ejects fuel. The nozzle 174 protrudes into the combustion chamber 172. When the fuel discharged from the nozzle 174 is ignited, the off-gas in the combustion chamber 172 is combusted.

  The combustion chamber 172 is surrounded by a cylindrical outer shell member 175 having a circular cross section capable of withstanding high temperatures, and is provided at a connection portion 176 connected to the off-gas exhaust pipe portion 28 and at an end opposite to the connection portion 176. The exhaust port portion 177 is provided. The outer shell member 175 has a connecting portion 176 and an exhaust port portion 177 that are narrower than the central portion (combustion chamber 172) with respect to the central portion so that the diameter of the outer shell member 175 is reduced. It has a different shape.

  The cover member 173 is a box-shaped member that surrounds the outer shell member 175, and is disposed with a space 178 between the cover member 173 and the outer shell member 175. The cover member 173 is fixed to the back surface of the main body 2 while supporting the outer shell member 175 at the bottom. Further, a through hole 179 is provided in the lower portion of the side wall portion of the cover member 173, and a through hole 180 is provided in the upper portion of the side wall portion. The through holes 179 and 180 are ventilation holes, and when the off-gas purification unit 7 operates, air enters the through hole 179 from the outside and can escape from the through hole 180. The connection portion 176 passes through the bottom plate portion 181 of the cover member 173, and the exhaust port portion 177 passes through the upper plate portion 182 of the cover member 173.

  The off gas discharged from the off gas discharge pipe portion 28 into the combustion chamber 172 is burned by igniting the burner 171. In the combustion chamber 172, the off-gas inlet portion and the outlet portion are throttled, so that the temperature is likely to rise as compared with a simple chimney shape, and a high temperature of 800 ° C. or higher is maintained. By burning off gas at 800 ° C. or higher, dioxins, tars, odorous components and the like are almost burned, and off gas discharged from the exhaust port 177 is almost harmless and non-brominated. Note that. When the inside of the combustion chamber 172 becomes high temperature and off-gas is discharged from the exhaust port 177, the inside of the combustion chamber 172 becomes a negative pressure rather than the atmospheric pressure, and more negative than the inside of the processing chamber 49 of the main body 2. Become. Therefore, the off gas can form a circulation path from the processing chamber 49 to the off gas suction pipe section 76, the heating secondary decomposition pipe section 77, and the off gas exhaust pipe section 28 to the off gas purification section 170 in order. That is, the burner 171 which is a combustion means has a function of the blower 31 in the first embodiment in addition to burning off-gas.

  Although not shown, the thermoelectric element 33 which is a heat generating means can be installed in the off-gas discharge pipe portion 28 as in the first embodiment, or can be installed in the outer shell member 175 or the cover member 173. is there.

  The low-temperature pyrolysis treatment apparatus 1 having the off-gas purification unit 170 according to the fourth embodiment described above includes a burner 171 that is a combustion means for burning off-gas generated when a process target is pyrolyzed. Yes. The off gas stored in the combustion chamber 172 burns at a high temperature of 800 ° C. or higher, so that dioxins, tars, odor components, etc. contained in the off gas are almost burned and discharged from the exhaust port 177. Off-gas can be made almost harmless and non-brominated. In addition, the combustion chamber 172 has an entrance portion and a discharge portion for off-gas that are restricted, so that the temperature easily rises and is easier to maintain than in the case of a simple chimney shape. Therefore, if the off-gas is continuously supplied to a high temperature atmosphere of 800 ° C. or higher, the combustion using the burner 171 may squeeze the fuel only slightly, ignite intermittently, or pause temporarily. It is possible to save energy.

  It should be noted that the present invention is not limited to the above-described embodiment, but includes modifications and improvements as long as the object of the present invention can be achieved. For example, in the first, second, and third embodiments described above, one unit of the off-gas induction pipes 25, 120, and 140 is provided, but a plurality of units may be provided. In that case, if an off-gas induction pipe is arranged in the thermal decomposition layer 53, the deposition layer 54, or both in addition to the residue storage chamber 52, the thermal decomposition efficiency can be increased.

  Moreover, although the structure which uses the off-gas purification | cleaning part 7 in 1st Embodiment and the off-gas purification | cleaning part 170 in 4th Embodiment was demonstrated, you may make it install both of these. For example, after the off-gas purification by the purification liquid in the off-gas purification unit 7, the off-gas discharged from the off-gas purification unit 7 by the off-gas purification unit 170 may be discharged after being burned by the off-gas purification unit 170. Alternatively, the off-gas that has been combustion-purified by the off-gas purification unit 170 may be further purified by the off-gas purification unit 7 and discharged.

  Further, the oxygen supply place from the oxygen supply means 35 and 36 may be arranged in the thermal decomposition layer 53 and / or the deposited layer 54 in addition to the residue storage chamber 52. Further, the oxygen supplied from the oxygen supply means 35 and 36 may be heated and supplied at a high temperature oxygen (a temperature at which combustion does not occur). The air (oxygen) supplied from the oxygen supply means 35, 36 into the decomposition treatment tank 46 may be magnetized air (magnetized air).

  In the above-described embodiment, the air flow rate supplied from the magnetized air supply units 5 and 6 is performed by the flow rate adjustment valve 66, and the oxygen supply amount of the oxygen supply means 35 and 36 is performed by the flow rate adjustment valve 37. . Although these operations are performed manually, they may be adjusted by an instruction from the controller corresponding to the temperature detection value, or may be performed by remote control provided with communication means for each.

  When meandering the off-gas flow, the partition plates 155 to 162 are not arranged in this order, but the partition plates 155, 157, 159, and 161 are arranged in this order, or the partition plates 156, 158, 160, and 162 are arranged in this order. By doing so, it may meander from side to side and up and down.

DESCRIPTION OF SYMBOLS 1 ... Low-temperature pyrolysis processing apparatus 2 ... Main-body part 3 ... 1st residue extraction part 4 ... 2nd residue extraction part 5, 6 ... Magnetized air supply part 7 ... Off-gas purification part 18 ... Residue extraction port 20 ... Air suction pipe 21 ... Magnetized air supply pipe 25 ... Off gas induction pipe 27 ... Septic tank part 28 ... Off gas discharge pipe part 29 ... Purified liquid supply pipe 31 ... Blower (exhaust means)
33 ... Thermoelectric element (power generation means)
35, 36 ... Oxygen supply means 45 ... Magnetized air generating section 46 ... Decomposition treatment tank 52 ... Residue storage chamber 53 ... Thermal decomposition layer 54 ... Deposition layer 55 ... Fire flame 60A-60M ... Magnetized air discharge pipe 61 ... Air storage tank 62 ... Magnetized air storage tank 64 ... Magnetizer 65 ... Flow rate adjusting valve 76 ... Off-gas suction pipe part 77 ... Heating secondary decomposition pipe 90 ... Nozzle (injection means)
105 ... Oxygen supply pipe part 106A-106F ... Oxygen discharge pipe part 120 ... Off-gas induction pipe (2nd Embodiment)
121, 122 ... Inner tube (second embodiment)
140. Off-gas induction tube (third embodiment)
141, 142 ... Inner tube (third embodiment)
155-162 ... Partition plate (third embodiment)
170 ... off-gas purification unit (fourth embodiment)
171 ... Burner (combustion means)
172 ... Combustion chamber 173 ... Cover member 174 ... Nozzle (fourth embodiment)
175 ... outer shell member

Claims (11)

A decomposition treatment tank into which the object to be treated is charged;
A magnetized air supply unit for supplying magnetized air into the decomposition treatment tank;
An off-gas induction pipe provided with a heated secondary decomposition pipe section that sucks off-gas generated when the processing object is thermally decomposed in the decomposition processing tank and is disposed at the bottom of the decomposition processing tank;
A purification tank unit disposed on the off-gas discharge side of the off-gas induction pipe, and an off-gas purification unit including exhaust means for discharging the off-gas passing through the purification tank unit to the outside.
A low-temperature pyrolysis treatment apparatus characterized by that. In the low-temperature pyrolysis processing apparatus according to claim 1,
The off-gas induction tube is
An off-gas suction tube portion that is disposed along the inner side of the side wall of the decomposition treatment tank, sucks the off-gas, a heated secondary decomposition tube portion that communicates with the off-gas suction tube portion, and communicates with the heated secondary decomposition tube portion And an off-gas discharge pipe part that is disposed outside the decomposition treatment tank and guides the off-gas to the septic tank part.
A low-temperature pyrolysis treatment apparatus characterized by that. The low-temperature pyrolysis treatment apparatus according to claim 2,
The heating secondary decomposition tube portion has an inner tube that can be inserted from the end of the heated secondary decomposition tube portion or can be extracted from the end of the heated secondary decomposition tube portion,
The inner cylinder pipe communicates with the offgas suction pipe section and the offgas discharge pipe section.
A low-temperature pyrolysis treatment apparatus characterized by that. In the low temperature pyrolysis processing apparatus according to claim 3,
The inner tube is provided with a partition plate that meanders the flow of the off gas.
A low-temperature pyrolysis treatment apparatus characterized by that. In the low temperature pyrolysis processing apparatus according to claim 1 or 2,
The decomposition treatment tank, the magnetized air supply unit, the off-gas induction pipe, and the off-gas purification unit,
The off-gas induction pipe includes the off-gas suction pipe part, the heating secondary decomposition pipe part, and the off-gas discharge pipe part.
A low-temperature pyrolysis treatment apparatus characterized by that. In the low-temperature pyrolysis processing apparatus according to any one of claims 1 to 5,
The heating secondary decomposition tube portion is disposed at the bottom of the decomposition treatment tank, and has the inner tube.
The inner cylinder pipe communicates with the off-gas purification section through the off-gas discharge pipe section.
A low-temperature pyrolysis treatment apparatus characterized by that. In the low-temperature pyrolysis treatment apparatus according to any one of claims 1 to 6,
The off-gas purification unit has an injection unit that injects a purification liquid into the off-gas,
A low-temperature pyrolysis treatment apparatus characterized by that. In the low-temperature pyrolysis treatment apparatus according to any one of claims 1 to 6,
The off-gas purification unit has combustion means for burning the off-gas,
A low-temperature pyrolysis treatment apparatus characterized by that. In the low-temperature pyrolysis processing apparatus according to any one of claims 1 to 8,
Having oxygen supply means for supplying oxygen to the decomposition residue in the decomposition treatment tank;
A low-temperature pyrolysis treatment apparatus characterized by that. In the low-temperature pyrolysis processing apparatus according to any one of claims 1 to 9,
The magnetized air supply unit
An air storage tank and a magnetized air storage tank, an air suction means for sucking air from the outside into the air storage tank, a magnetized air generating unit including a magnetizer that communicates the air storage tank and the magnetized air storage tank,
A magnetized air supply pipe communicating with the magnetized air storage tank;
A magnetized air discharge pipe that communicates with the magnetized air supply pipe and feeds the magnetized air into the decomposition treatment tank;
A low-temperature pyrolysis treatment apparatus characterized by that. In the low-temperature pyrolysis treatment apparatus according to any one of claims 1 to 10,
Having power generation means for generating power by the temperature difference between the decomposition treatment tank side and the outside air side,
A low-temperature pyrolysis treatment apparatus characterized by that.

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