JP2006035050A - Apparatus for treatment of dry distillation gas - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for treatment of dry distillation gas reliably making smokeless the dry distillation gas discharged from a carbonization volume reduction apparatus. <P>SOLUTION: The apparatus 3 for treatment of dry distillation gas purifies dry distillation gas discharged from a carbonization volume reduction apparatus 2 for dry distillation of waste and has a connection tube 4 through which dry distillation gas discharged from the volume reduction apparatus 2 pass, a water storage container 15 storing water, a circulation conduit 16 serving as a path for returning water taken from the container 15 to the container 15 and an ejector 18 arranged in the conduit 16 and taking the dry distillation gas from the connection tube 4 into the conduit 16 with the negative pressure generated by running water within the conduit 16. Since the drain outlet 16d discharging water from the conduit 16 to the container 15 is arranged so as to be immersed in water stored in the container 15, dry distillation gas incorporated into circulated water can be taken into water stored in the container 15 without escape. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a dry distillation gas treatment device for purifying dry distillation gas discharged from a carbonization volume reducing device for dry distillation of waste.

A carbonization volume reduction device that recycles waste to reduce the volume of the waste and reuse it by obtaining carbides discharges carbonization gas containing a large amount of tar and pyroligneous acid. Patent Document 1 describes an apparatus that makes such dry distillation gas smokeless and separates tar contained in the dry distillation gas.
The dry distillation gas treatment device described in Patent Document 1 injects water circulating through a water storage container into a venturi section, sucks dry distillation gas from the furnace with the negative pressure, and cleans the dry distillation gas with this injection water, The vinegar solution contained in the dry distillation gas is dropped from the tip of the venturi section into the water storage tank and stored.

JP 2002-309264 A

  However, since the dry distillation gas treatment apparatus described in Patent Document 1 sprays circulating water to the venturi section to wash the dry distillation gas and drops it into the storage tank from the tip of the venturi section, it escapes the cleaning by the jet water. The dry distillation gas may be discharged from the gas discharge pipe as it is.

  Moreover, since the circulating water is gradually contaminated, there is a concern that the injection port used as the injection water may be clogged.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a dry distillation gas treatment device that reliably removes smoke from a carbonization volume reduction device.

  The dry distillation gas treatment apparatus of the present invention is a dry distillation gas treatment apparatus for purifying a dry distillation gas discharged from a carbonization volume reduction apparatus for carbonizing waste, and a communication pipe through which the dry distillation gas discharged from the carbonization volume reduction apparatus passes, A water storage container for storing water, a circulation line serving as a passage for returning water taken from the water storage container to the water storage container, and the dry distillation gas from the communication pipe provided in the circulation pipe. An ejector portion that takes in the circulation pipe by negative pressure due to flowing water in the passage, and a drain outlet for discharging water from the circulation pipe to the water storage container is immersed in the water stored in the water storage container It is characterized by being arranged in.

  Since the ejector portion takes in the dry distillation gas under a negative pressure of flowing water, it is not necessary to provide a small-diameter hole such as an injection port for the injection water in the circulating water path. In addition, since the drain outlet of the circulation pipe is arranged so as to be immersed in the water stored in the water storage container, it can be taken into the water stored in the water storage container without losing the dry distillation gas taken into the circulating water. Can do.

  The ejector portion is disposed at a position where the water in the circulation pipe flows from the upper side to the lower side, and a diameter-reduced portion having a through-hole in a peripheral surface, and one end portion covers the diameter-reduced portion. It is desirable to provide a connecting pipe connected and having the other end connected to the connecting pipe.

  As the water in the circulation pipe flows from the upper side to the lower side, the momentum of the circulating water increases and the momentum is further accelerated by the reduced diameter portion. And the dry distillation gas can be taken in via the connecting pipe connected to a connecting pipe by the negative pressure which generate | occur | produces in the through-hole provided in the reduced diameter part.

  In the reduced diameter portion, an inner diameter reduced portion and an inner diameter enlarged portion are connected in the flowing water direction in order, and the through hole is provided on the inner diameter enlarged portion side. Since the through hole is provided in the inner diameter enlarged portion where the inner diameter gradually increases with respect to the flowing water direction, it is possible to make it difficult for the circulating water to flow out of the through hole in the connecting pipe covering the reduced diameter portion.

  Furthermore, it is desirable that the connecting pipe has a larger diameter than the connecting pipe. If the connecting pipe has a larger diameter than the connecting pipe, the pressure of the dry distillation gas discharged from the carbonization volume reduction device can be reduced once, so the influence of the intake of dry distillation gas by the ejector does not affect the carbonization volume reduction device. Can be.

  In addition, it includes a discharge pipe that discharges floating substances separated from the water stored in the water storage container due to a difference in specific gravity, and a collection container that stores floating substances discharged from the discharge pipe. When oil such as tar is stored in a water storage container together with water, it floats as a suspended matter due to the difference in specific gravity, so it can be easily separated from the circulating water, and the oil is discharged from the drain pipe to collect it. Can be collected.

The carbonization apparatus of the present invention has the following effects.
(1) In the ejector section provided in the circulation pipe, the dry distillation gas from the communication pipe connected to the carbonization volume reduction device is taken into the circulation pipe by the negative pressure due to the flowing water in the circulation pipe. It is not necessary to use a small-diameter hole such as an injection port that uses this path as the injection water. Therefore, clogging or the like hardly occurs, and high dry distillation gas uptake efficiency can be maintained. In addition, since the drain outlet of the circulation pipe is submerged in the water stored in the water storage container, the dry distillation gas is not missed. Therefore, oil such as tar contained in the dry distillation gas can be liquefied by cooling, and the dry distillation gas can be reliably made smokeless.
(2) The ejector portion is disposed at a position where the water in the circulation pipe flows from the upper side to the lower side, and the diameter-reduced portion having a through-hole in the peripheral surface and one end portion covering the diameter-reduced portion. Since the connection pipe is connected and the other end is connected to the connecting pipe, the dry distillation gas is taken in by the negative pressure generated in the through hole when the flowing water passes through the reduced diameter portion. There is no need for a small-diameter hole such as an injection port for jetting water in the path. Therefore, clogging or the like hardly occurs, and high dry distillation gas uptake efficiency can be maintained.
(3) The through-hole is provided on the inner diameter enlarged portion side in the reduced diameter portion in which the inner diameter reduced portion and the inner diameter enlarged portion are connected in the flowing water direction, and thus circulates in the connection pipe covering the reduced diameter portion. Since it is difficult for water to flow out from the through-hole, it is possible to increase the flow rate of the circulating water according to the amount of dry distillation gas discharged from the carbonization volume reduction device.
(4) By making the connecting pipe larger in diameter than the connecting pipe, it is possible to prevent the carbonization volume reducing device from being affected by the intake of the dry distillation gas by the ejector section. Therefore, it is possible to easily adjust the air in the carbonization volume reducing apparatus in which carbonization proceeds gradually.
(5) Included in dry distillation gas by having a discharge pipe that discharges floating substances separated from the water stored in the water storage container due to the difference in specific gravity, and a collection container that stores floating substances discharged from the discharge pipe Oil such as tar can be easily separated from the circulating water, and the oil can be discharged from the drain pipe and collected in a collecting container, so that reusable oil can be easily collected.

  Hereinafter, the carbonization apparatus which concerns on embodiment of this invention is demonstrated based on drawing. FIG. 1 is a vertical sectional view for explaining a carbonization apparatus according to an embodiment of the present invention. FIG. 2 is a side view for explaining the carbonization apparatus according to the embodiment of the present invention. FIG. 3 is a plan view for explaining the carbonization apparatus according to the embodiment of the present invention. FIG. 4 is a diagram illustrating a magnetic field generator provided in the air introduction pipe. FIG. 5 is a diagram for explaining the ejector section. FIG. 6 is a horizontal sectional view of the carbonization furnace.

  As shown in FIGS. 1 to 3, the carbonization device 1 includes a carbonization volume reduction device 2 and a dry distillation gas treatment device 3. The carbonization volume reducing device 2 and the dry distillation gas treatment device 3 are connected by a communication pipe 4. The carbonization apparatus 1 is a processing apparatus that can process a small-scale waste that can be installed in a general household, a hospital, a company, or the like into a carbide.

  First, the carbonization volume reducing device 2 will be described. The carbonization volume reducing device 2 is a furnace that burns a little waste by introducing air by applying a magnetic field by natural ventilation, and carbonizes the waste by heating to produce a carbide. The carbonization volume reducing device 2 includes a vertical and substantially cylindrical carbonization furnace 5, two pairs of air introduction pipes 6 for introducing air, a dry distillation gas discharge pipe 7 for discharging dry distillation gas, and each air introduction pipe 6. And a magnetic field generator 8 for applying a magnetic field to the air passing through.

  The carbonization furnace 5 includes a top wall 9 provided with an inlet 9a for introducing waste, a bottom wall 10 provided with legs 10a at four corners, and a main body 11 formed in a cylindrical shape. Are integrally formed. The top wall 9, the bottom wall 10, and the main body 11 are each formed in an internal / external double structure, and castable or rock wool is disposed in the space between the double structures, whereby a heat insulating layer 5a is provided to improve heat resistance.

  The carbonization furnace 5 is made of stainless steel with an outer peripheral surface having a diameter of 1000 mm and a height of 1200 mm. An upper lid 9 b that can be opened and closed is provided at the inlet 9 a of the upper surface wall 9. The lower wall portion 10 is provided with a carbide outlet 10b that is an opening of 300 mm × 400 mm. When carbonizing this waste, the carbide outlet 10b is closed with a bottom lid 10c provided on the lower wall portion 10.

  As shown in FIGS. 1 and 6, a rotation shaft 12 a is disposed at the center of the lower wall portion 10. A scraper 13 connected to the rotary shaft 12a and turning the upper surface of the lower wall portion 10 to drop the carbide accumulated at the bottom of the carbonization furnace 5 downward from the carbide outlet 10b is provided in the carbonization furnace 5. Yes. A sprocket 12b is provided outside the carbonization furnace 5 of the rotating shaft 12a, and is connected to a motor 12d via a chain 12c.

  A carbide storage container 14 that receives the carbide falling from the carbide outlet 10b is disposed below the carbide outlet 10b.

  Two pairs of air introduction pipes 6 are provided on the peripheral surface of the main body 11 of the carbonization furnace 5 so as to face each other. The two pairs of air introduction pipes 6 are pipes having a diameter of 50 mm, and are arranged so that the axial center direction thereof is inclined with respect to the radial direction of the carbonization furnace 5. The air introduction pipe 6 is provided with an adjustment valve 6a for adjusting the amount of air passing therethrough. The air introduced through the air introduction pipe 6 is introduced by natural ventilation due to the discharge of gas accompanying the dry distillation of waste, and enters at a flow rate of about 0.5 m / S.

  The air introduction pipe 6 is provided with a magnetic field generator 8. The magnetic field generator 8 is a magnetic field generator that applies a magnetic field to the air passing through the air introduction tube 6. The magnetic field generator 8 will be described in detail with reference to FIG.

  As shown in FIG. 4, the magnetic field generating unit 8 is disposed with the permanent magnet 8 a facing each other with the air introduction tube 6 interposed therebetween, and is housed in the magnet housing unit 8 b formed of a nonmagnetic material and attached to the air introduction tube 6. It has been. The opposing poles of the permanent magnet 8a are arranged so that the N pole and the S pole face each other. Although the magnetism generating portion 8 is a permanent magnet 8a, it may be an electromagnet as long as it can generate a magnetic field and apply an electric field to the introduced air.

  Next, the dry distillation gas treatment apparatus 3 will be described with reference to FIGS. 1 and 5. The carbonization gas treatment device 3 is a treatment device that purifies the carbonization gas discharged from the carbonization volume reduction device 2, and can be suitably used for the carbonization volume reduction device 2 that carbonizes waste by natural ventilation. The dry distillation gas treatment device 3 can be omitted when the smoke discharged from the carbonization volume reduction device 2 is released into the atmosphere as it is. However, the dry distillation gas discharged from the carbonization volume reduction device 2 contains minute dust and bad odor. Therefore, when it is installed in a general household, it is in a neighboring house. In order to have an adverse effect, it is necessary to connect the dry distillation gas treatment device 3 to the carbonization volume reduction device 2 for use.

  As shown in FIG. 1, the dry distillation gas treatment device 3 is provided in a water storage container 15 that stores water, a circulation pipe 16, a circulation pump 17 that circulates water in the circulation pipe 16, and the circulation pipe 16. The ejector section 18, the discharge pipe 19 provided at the upper side of the water storage container 15, the collection container 20 for collecting oil discharged from the discharge pipe 19, and the activated carbon layer 21 provided at the top of the water storage container 15. And an exhaust pipe 22 for discharging dry distillation gas to the outside through the activated carbon layer 21.

  The water storage container 15 is a container that stores water formed of stainless steel having a substantially cylindrical shape with an outer diameter of 800 mm and a height of 900 mm. A water intake 15 a is provided at the lower part of the outer peripheral surface of the water storage container 15, and water in the water storage container 15 is taken into the circulation line 16 from the water intake 15 a.

  The circulation pump 17 is provided in the circulation line 16 and pumps water in the circulation line 16 upward. The circulation pump 17 circulates the circulation line 16 at an output of approximately 1.5 KW (2 PS) and a flow rate of approximately 2 m / S.

  The ejector portion 18 includes a reduced diameter portion 23 having a through-hole provided in the peripheral surface, and a connecting tube 24 having one end connected to cover the reduced diameter portion 23 and the other end connected to the connecting tube 4. ing.

  Here, the ejector portion 18 will be described in detail with reference to FIG. The ejector portion 18 includes a reduced diameter portion 23 in which the inner diameter of the circulation pipe line 16 having a diameter of 50 mm is reduced.

  The reduced diameter portion 23 includes an inner diameter reduced portion 23a in which the inner diameter of the 50 mm circulation pipe 16 is gradually reduced to 20 mm, and an inner diameter enlarged portion 23b in which the 20 mm inner diameter is gradually increased to 50 mm. Are connected in this order. In the present embodiment, a relay pipe 23c having a reduced diameter is disposed between the inner diameter reduced portion 23a and the inner diameter enlarged portion 23b. The relay pipe 23c can be omitted by directly connecting the inner diameter reduced portion 23a and the inner diameter enlarged portion 23b. Eight through holes 23d having a diameter of 6 mm are provided on the peripheral surface of the inner diameter enlarged portion 23b. The inner diameter enlarged portion 23 b is connected to a drain pipe 16 c that is a part of the circulation pipe 16 in order to return the circulating water to the water storage container 15.

  The drain pipe 16c is disposed so that the drain outlet 16d as the tip is immersed in the stored water. Further, the drain pipe 16 c has a length that reaches the lower part of the water storage container 15. Further, the tip is curved so that the direction of the drainage port 16d is directed in the direction opposite to the water intake port 15a so that the drained water is not immediately taken from the water intake port 15a.

  The connecting pipe 24 is formed with a larger diameter than the connecting pipe 4. The horizontal part 16a of the circulation pipe line 16 is disposed so as to penetrate the side surface. An elbow part 16b, which is a pipe bent approximately 90 ° in order to allow the water in the circulation pipe line 16 to flow from the upper side to the lower side, is connected to the horizontal part 16a, and the inner diameter reduction part 23a is connected to the elbow part 16b. Thus, the flow of water flowing into the ejector portion 18 is changed from the horizontal direction to the vertical direction.

  Returning to FIG. 1, the discharge pipe 19 is a pipe for discharging oil that is a floating substance such as tar floating in the water stored in the water storage container 15. Therefore, the water storage container 15 is used so as to store water up to the height at which the drain pipe 19 is provided. The floating substance such as oil discharged from the discharge pipe 19 is collected by the collection container 20.

  The activated carbon layer 21 is provided on the upper portion of the water storage container 15 by a ventable shelf, and deodorizes the dry distillation gas stored and purified by water. The deodorized dry distillation gas is discharged to the outside air through the exhaust pipe 22.

  The operation and use state of the carbonization apparatus according to the embodiment of the present invention configured as described above will be described with reference to FIGS.

  As shown in FIG. 1, it is assumed that water is first stored in the water storage container 15 up to the position of the discharge pipe 19. Then, the upper lid 9b is opened, and waste is put into the carbonization furnace 5 from the charging port 9a. The amount of discarded material may be charged to the carbonization furnace 5 as a full amount.

  Next, the bottom lid 10c is opened, and the waste is ignited with a seed fire that burns newspaper or the like from the carbide outlet 10b. When the ignition of the waste is confirmed, the adjustment valve 6a provided in the air introduction pipe 6 is opened and the circulation pump 17 is started. When the circulation pump 17 is started, the water in the water storage container 15 circulates in the circulation management 16.

  As the waste ignites, more and more waste begins to burn. Air is introduced into the carbonization furnace 5 through the air introduction pipe 6. The introduced air is ionized and magnetized by the magnetic field generator 8 under the action of a magnetic field. Since the air introduction pipe 6 is arranged such that the axial direction of the air introduction pipe 6 is inclined with respect to the radial direction of the carbonization furnace 5, air can be distributed along the peripheral surface of the carbonization furnace 5. Further, the air travel direction is such that the paired air introduction pipes 6 are directed in opposite directions, so that the air travels along the inner surface of the carbonization furnace 5 in the same circumferential direction. Air can be uniformly distributed in the furnace 5.

  Carbonization begins with the initial combustion of waste. The dry distillation gas moves to the upper part of the carbonization furnace 5 and is discharged from the dry distillation gas discharge pipe 7 to the dry distillation gas processing apparatus 2 through the communication pipe 4.

  Dry distillation is performed by shutting off air. However, a large amount of heating energy is required to carbonize waste such as household waste, so a small amount of air is introduced and burned, and the heat causes carbonization. Let However, if the amount of air introduced into the carbonization furnace 5 is too small, the slightly burned waste disappears. Since the magnetic field is applied to the air to be introduced, it can be carbonized without disappearing. Thus, since air is gradually introduced and dry distillation by slight combustion is performed in the carbonization furnace 5, the combustion temperature can be 300 ° C. or less. Therefore, the waste can be dry distilled without damaging the carbonization furnace 5 and without generating dioxins. Also, no burner or the like is required for heating the waste, and since it is natural ventilation, a blower or the like is not required.

  The dry distillation gas discharged to the dry distillation gas treatment device 2 is first discharged into the connection pipe 24. As shown in FIG. 5, the water passing through the circulation line 16 is accelerated by the inner diameter reducing portion 23a, the acceleration state is maintained by the relay pipe 23c, and the pressure is reduced at once by the inner diameter expanding portion 23b. Due to the change in the pressure, a negative pressure is generated in the through-hole 23d with respect to the inside of the connection pipe 24. Therefore, the dry distillation gas discharged into the connection pipe 24 passes through the through-hole 23d and circulates in the circulation line 16. Is taken in. Since the through hole 23d is provided in the inner diameter enlarged portion 23b in which the inner diameter gradually increases with respect to the flowing water direction, the circulating water passes through the through hole 23d in the connecting pipe 24 covering the reduced diameter portion 23. It has become difficult to flow out.

  The amount of dry distillation gas taken in can be determined as appropriate by the output of the circulation pump 17. That is, in the case of a carbonization volume reducing device that generates a large amount of dry distillation gas, a large amount of dry distillation gas can be taken into the circulating water by using the circulation pump 17 that has a high output and can increase the flow rate of the circulating water. it can.

  Although it is more efficient to force the dry distillation gas from the communication pipe 4 to the water in the water storage container 15, a large amount of air is sucked into the carbonization furnace 5 through the air introduction pipe 6. The waste enters the carbonization furnace 5 and is oxidized without being carbonized. The carbonization furnace 5 is intended to collect a large amount of carbides by regulating the flow rate of air as much as possible so that the incineration temperature does not rise, and therefore circulates the dry distillation gas discharged from the carbonization furnace 5. An indirect method is used in which the water is taken in by the negative pressure of the water and discharged into the water storage container 15.

  Returning to FIG. 1, the dry distillation gas taken into the water circulating in the circulation pipe 16 is discharged from the drain pipe 16 c which is a part of the circulation pipe 16 to the water stored in the water storage container 15. Since the drain outlet 16d, which is the tip of the drain pipe 16c, is arranged so as to be immersed in the water stored in the water storage container 15, the dry distillation gas taken into the circulating water can be sent to the stored water without escaping. it can.

  The drain pipe 16 c has a length that reaches the lower part of the water storage container 15. Therefore, while the drained water reaches the water surface from the lower part, the dry distillation gas contained in the water can be sufficiently cooled, so that the tar vaporized in the dry distillation gas can be liquefied. Further, since the drain pipe 16 curves the drain port 16d so that the direction of the drain port 16d faces in the direction opposite to the water intake port 15a, the drained water is not immediately taken from the water intake port 15a, The water storage container 15 can be stopped to some extent.

  In the dry distillation gas cooled with water, vaporized oil such as tar is liquefied and separated from water. And it comes to float on the surface of the stored water due to the difference in specific gravity. When carbonization proceeds in the carbonization furnace 5, the amount of floating oil in the water storage container 15 increases and is collected into the collection container 20 through the discharge pipe 19.

  Vaporized odor due to dry distillation gas is generated from the surface of the water in the water storage container 15, but the dry distillation gas which is removed by the activated carbon layer 21 and becomes colorless and odorless is discharged from the exhaust pipe 22.

  When the carbonization of the waste in the carbonization furnace 5 is completed, the carbide storage container 14 is disposed below the carbide extraction port 10b in order to take out the carbide accumulated at the bottom of the carbonization furnace 5. When the bottom lid 10 c of the lower wall portion 10 is opened, the carbide falls from the carbide take-out port 10 b and is stored in the carbide storage container 14. When there are a lot of carbides, the motor 12d is started, the scraper 13 is turned, and the carbides accumulated at the bottom of the carbonization furnace 5 are sequentially discharged. In this case, not all of the carbide is discharged, but, for example, the carbide having a height of about 20 cm from the bottom of the carbonization furnace 5 is left. By doing so, at the time of the next carbonization, this carbide becomes a fuel, and the carbonization can be further promoted.

  The carbide stored in the carbide storage container 14 can be reused as ceramics. In addition, since the waste is carbonized with air to which a magnetic field is applied, the carbide is a powder having magnetism. This magnetic powder can be used for shortening the treatment period by mixing it with gypsum and using it as a treatment for fractures.

  Next, a carbonization apparatus according to another embodiment of the present invention will be described with reference to FIGS. 7 and 8 are views for explaining a carbonization apparatus according to another embodiment of the present invention, in which (a) is a plan view and (b) is a side view. 7 and 8, the dry distillation gas treatment apparatus is omitted, but the dry distillation gas treatment apparatus 3 shown in FIG. 7 and 8, the same components as those in FIG. 1 are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 7, in the carbonization volume reducing device 30, a pair of air introduction pipes 6 are oriented in directions opposite to each other so that the axial center direction thereof is inclined with respect to the radial direction of the carbonization furnace 5. 2 stages are provided in the height direction. Further, the air introduction pipe 6 is provided on the circumferential surface of the carbonization furnace 5 at a position where the carbonization furnace 5 does not overlap and is equidistant when the carbonization furnace 5 is viewed in plan.

  Thus, since the axial center direction is arranged on the circumferential surface of the carbonization furnace 5 so as to be inclined with respect to the radial direction of the carbonization furnace 5, air can be distributed along the circumferential surface of the carbonization furnace 5. Therefore, the influence of the inhibition by the carbide can be suppressed. In addition, by providing two stages of the air introduction pipes 6 in the height direction, the air introduction pipes 6 arranged at the respective heights supply air even if the carbonization furnace 5 accommodates the waste in a superimposed state. Therefore, it is possible to spread air even in the height direction. Further, when the carbonization furnace 5 is viewed from above, the air is distributed and supplied in the circumferential direction and the height direction of the carbonization furnace 5 so as not to overlap and at equal intervals. Can do.

  As shown in FIG. 8, the carbonization volume reducing device 35 has a pair of air introduction pipes 6 arranged so that the axial direction thereof is the radial direction of the carbonization furnace 5. Two stages are provided in the height direction. Further, the air introduction pipe 6 is provided on the circumferential surface of the carbonization furnace 5 at a position where the carbonization furnace 5 does not overlap and is equidistant when the carbonization furnace 5 is viewed in plan.

  Even if the air introduction pipe 6 is arranged on the peripheral surface of the carbonization furnace 5 in such a manner that the axial center direction thereof is the radial direction of the carbonization furnace 5, there is no corner on the peripheral surface of the carbonization furnace 5, Air introduced by natural ventilation can be distributed smoothly.

  Further, similarly to the carbonization volume reduction device 30 (see FIG. 7), by providing two stages of the air introduction pipes 6 in the height direction, Since the air introduction pipe 6 disposed at a height supplies air, the air can be distributed even in the height direction. Further, when the carbonization furnace 5 is viewed from above, air is evenly distributed and supplied to the circumferential direction and the height direction of the carbonization furnace 5 so as not to overlap each other and at equal intervals. Can be made.

  Even when the carbonization furnace has a substantially rectangular parallelepiped shape, it is possible to arrange the air introduction pipes on all the side walls or to provide two or more stages in the height direction, but in that case, there are corners inside the carbonization furnace. . Therefore, since it is difficult to arrange the air introduction pipes uniformly, the balance of the amount of air introduced from the air introduction pipes is biased. Even if the adjustment of the adjustment valve for adjusting the amount of air to be introduced is provided in the air introduction pipe, the adjustment for uniform introduction into the carbonization furnace becomes complicated. The balance of air introduction is bad. Therefore, in some places where the amount of air supply is large, the waste cannot be ashed by oxidation to obtain carbide.

  However, as shown in FIG. 7 or FIG. 8, since the carbonization furnace 5 has a substantially cylindrical shape, a plurality of air introduction pipes 6 are provided in the height direction so that they do not overlap when viewed in plan. And at equal intervals. Therefore, air can be uniformly introduced into the carbonization furnace 5, so that it is possible to obtain a carbide by dry distillation of the waste evenly. Even when the adjustment valve 6a is adjusted according to the amount of waste, since the air introduction pipes 6 are evenly arranged, it is only necessary to operate all the adjustment valves by the same amount, so that the operation is easy. .

  The carbonization volume reducing devices 30 and 35 shown in FIG. 7 or 8 are provided with two stages of the air introduction pipe 6 in the height direction of the carbonization furnace 5, but three stages or more may be provided. By disposing a large number of air introduction pipes 6, carbonization in the carbonization furnace 5 is promoted, so that the time for dry distillation can be further shortened.

  Thus, according to the carbonization volume reduction device of the carbonization apparatus of the present embodiment, the waste is carbonized by combustion by natural ventilation, so that heating means such as a burner for heating the waste and the introduced air are forced. Since no air blowing means or the like is required, the running cost can be reduced on a small scale. In addition, according to the carbonization gas treatment apparatus of the carbonization apparatus of the present embodiment, the dry distillation gas is taken into the circulated water by the negative pressure generated in the ejector section, and is sent to the water storage container, so that the waste is introduced by natural ventilation. Since the carbonization volume reducing device that performs carbonization by combustion of the generated air is not directly inhaled, carbon dioxide can be preferably used.

  INDUSTRIAL APPLICABILITY The present invention is suitable for a dry distillation gas treatment device that purifies dry distillation gas because it can reliably remove smoke from the carbonization volume reduction device that dry distillations waste.

It is a vertical sectional view explaining the carbonization apparatus concerning an embodiment of the invention. It is a side view explaining the carbonization apparatus which concerns on embodiment of this invention. It is a top view explaining the carbonization apparatus which concerns on embodiment of this invention. It is a figure explaining the magnetic field generation | occurrence | production part provided in the air introduction pipe | tube. It is a figure explaining an ejector part. It is a horizontal sectional view of a carbonization furnace. It is a figure explaining the carbonization apparatus which concerns on other embodiment of this invention, (a) is a top view, (b) is a side view. It is a figure explaining the carbonization apparatus which concerns on other embodiment of this invention, (a) is a top view, (b) is a side view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Carbonization apparatus 2 Carbonization volume reduction apparatus 3 Dry distillation gas processing apparatus 4 Communication pipe 5 Carbonization furnace 5a Heat insulation layer 6 Air introduction pipe 6a Control valve 7 Dry distillation gas discharge pipe 8 Magnetic field generation part 8a Permanent magnet 8b Magnet storage part 9 Upper surface wall 9a Input Port 10 Bottom wall 10a Leg 10b Carbide outlet 10c Bottom cover 11 Body 12a Rotating shaft 12b Sprocket 12c Chain 12d Motor 13 Scraper 14 Carbide storage container 15 Water storage container 15a Water intake 16 Circulation pipe 16a Horizontal part 16b Elbow pipe 16b Elbow pipe Pipe 16d Drain port 17 Circulation pump 18 Ejector part 19 Discharge pipe 20 Sampling container 21 Activated carbon layer 22 Exhaust pipe 23 Reduced diameter part 23a Inner diameter reduced part 23b Inner diameter enlarged part 23c Relay part 23d Through hole 24 Connecting pipe

Claims (5)

In the dry distillation gas treatment device that purifies the dry distillation gas discharged from the carbonization volume reduction device for carbonizing waste,
A communication pipe through which dry distillation gas discharged from the carbonization volume reducing device passes;
A water storage container for storing water;
A circulation line serving as a passage for returning water taken from the water storage container to the water storage container;
An ejector section provided in the circulation pipe, for taking in the dry distillation gas from the communication pipe into the circulation pipe with a negative pressure by running water in the circulation pipe;
A dry distillation gas processing apparatus, wherein a drain outlet for discharging water from the circulation pipe to the water storage container is disposed so as to be immersed in water stored in the water storage container.   The ejector portion is disposed at a position where the water in the circulation pipe flows from the upper side to the lower side, and a diameter-reduced portion having a through-hole in a peripheral surface, and one end portion covers the diameter-reduced portion. The dry distillation gas processing apparatus according to claim 1, further comprising a connection pipe connected and having the other end connected to the communication pipe. The reduced diameter portion is connected to an inner diameter reduced portion and an inner diameter enlarged portion in the direction of flowing water,
The dry distillation gas processing apparatus according to claim 2, wherein the through hole is provided on the inner diameter enlarged portion side.   The dry distillation gas treatment apparatus according to claim 2 or 3, wherein the connecting pipe has a larger diameter than the connecting pipe. A discharge pipe for discharging suspended matter separated due to a difference in specific gravity with water stored in the water storage container;
The dry distillation gas processing apparatus according to any one of claims 1 to 4, further comprising a collection container for storing suspended matter discharged from the discharge pipe.

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