WO2018173714A1

WO2018173714A1 - Exhaust separation device

Info

Publication number: WO2018173714A1
Application number: PCT/JP2018/008267
Authority: WO
Inventors: 京史寺本; 仁里見
Original assignee: 京史寺本
Priority date: 2017-03-23
Filing date: 2018-03-05
Publication date: 2018-09-27

Abstract

The present invention makes it possible to efficiently separate and recover useful material from exhaust gas generated through treatment of an article to be treated that includes organic matter. A plurality of grease filters 30 are arranged in a line in parallel with each other in a duct 28 at even intervals along the direction of flow of exhaust gas. Soiled water that includes useful material flows downward from the grease filters 30 by the grease filters 30 being sprayed with cleaning water from the shower nozzles 32 and is retained in an upper retention tank 36. A first collecting unit 16 circulates soiled water W2 within a lower retention tank 38 by sucking the supernatant of the soiled water W2 retained in the lower retention tank 38, recovering useful material from the soiled water W2, and returning the remaining soiled water W2 to the lower retention tank 38. A second recovery unit 18 recovers useful material from the soiled water W2 located below the supernatant out of the soiled water W2 retained in the lower retention tank 38. A filter tank 20 filters the soiled water W2 and generates filtered water by adsorbing useful material from the soiled water W2 discharged from the second recovery unit 18 using a porous material.

Description

Exhaust separator

The present invention relates to an exhaust separation device.

For example, the following devices have been proposed as devices for reducing the volume of a processing object containing an organic substance or obtaining a useful substance from a processing object containing an organic substance.
A superheated steam carbonization apparatus (superheated steam carbonization furnace) that heats and carbonizes a processing object using superheated steam to obtain a carbide as a useful product (see Patent Document 1).
A smoldering-type volume reduction processing device that obtains ash (ceramics) as a useful product by smokeless combustion (sintered), in other words, thermal decomposition of the processing object (see Patent Document 2).

JP 2001-214177 A Japanese Patent No. 4580388

In the above prior art, exhaust gas is generated by heating or thermally decomposing an object to be treated containing organic matter.
Such exhaust gases contain useful oils and ash, which can be reused as paints, fuels and resin materials, and ash can be reused as building aggregates and admixtures. It is desired to efficiently separate useful substances.
The present invention has been made in view of the above circumstances, and provides an exhaust gas separation apparatus that is advantageous in efficiently separating and recovering useful materials from exhaust gas generated during processing of an object to be processed including organic matter. With the goal.

The present invention is an exhaust separation device that separates the useful material from the exhaust gas containing the useful material, the duct forming a flow path through which the exhaust gas flows, and an interval in the duct in which the exhaust gas flows. A plurality of grease filters arranged to adsorb the useful materials, a cleaning unit for cleaning the useful materials adsorbed on the grease filters by injecting cleaning water to the respective grease filters, and jetting the cleaning water A storage tank for storing sewage containing the useful material flowing down from each grease filter, and a recovery unit for discharging the sewage remaining after recovering the useful material from the sewage stored in the storage tank, Filtration water is obtained by filtering the sewage by adsorbing the useful material by the porous material from the sewage that contains the porous material that adsorbs the useful material and is discharged from the recovery unit. A filtration tank to be generated, characterized in that it comprises said filtered water the supply unit for supplying the filter tank to the washing unit as the cleaning water.

According to the present invention, when exhaust gas passes through a plurality of grease filters, useful substances of the exhaust gas are efficiently adsorbed by the plurality of grease filters, so it is of course possible to perform exhaust that has little odor and does not affect the environment. This is advantageous in efficiently separating and recovering useful substances from exhaust gas generated during the treatment of the object to be treated including organic substances.
Moreover, since each grease filter is washed with washing water, the adsorption performance of useful materials by the grease filter is well maintained, which is more advantageous in efficiently separating and recovering useful materials from exhaust gas.
Moreover, since useful substances are recovered from the sewage obtained by washing the grease filter, it is advantageous in efficiently separating and recovering useful substances from the exhaust gas.
Further, among useful substances separated from the exhaust gas by the recovery unit, oil can be reused for fuel, paint and resin material, and ash can be reused as building aggregate and admixture.
In addition, the useful material that has been emulsified in the sewage is adsorbed and removed by the porous material in the filtration tank, so that filtered water that does not contain useful material can be obtained. Since it can be reused as cleaning water, it is advantageous in saving cleaning water.

It is explanatory drawing which shows the structure of the exhaust gas separation apparatus of embodiment. It is a front view which shows the structure of the exhaust gas separation apparatus of embodiment. It is a top view which shows the structure of the exhaust gas separation apparatus of embodiment. (A) is a front sectional view of the exhaust gas treatment section, (B) is a sectional view taken along line BB of (A), and (C) is a sectional view taken along line CC of (B). It is a top view of a grease filter.

Next, an exhaust gas separation apparatus according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the exhaust separation device 12 separates useful oils and ash from exhaust gas discharged from the treatment device 10 that treats a processing object including organic matter, and the useful matter is separated. The exhaust gas purified by the above is discharged into the atmosphere as exhaust gas.
In addition, in this specification, the processing target containing organic matter is not limited to waste containing organic matter typified by waste plastic and garbage, but various kinds of trees such as thinned wood, bark of trees, algae, etc. It shall contain organic matter.
In addition, the processing apparatus 10 to which the exhaust gas separation apparatus 12 of the present invention is applied may be any apparatus that generates exhaust gas by processing a processing target including organic matter. For example, the processing target including organic matter using superheated steam is used. Conventionally known devices such as a superheated steam carbonization device that heats and carbonizes, a fire burning type volume reduction processing device that thermally decomposes a processing object containing organic matter, or an incineration device that incinerates a processing object containing organic matter The present invention can be applied to various processing apparatuses.

The exhaust separation device 12 includes an exhaust gas treatment unit 14, a first recovery unit 16, a second recovery unit 18, a filtration tank 20, a supply unit 22, a cleaning unit 24, and the like.
As shown in FIGS. 1 to 3, the exhaust gas processing unit 14 includes an exhaust fan 26, a duct 28, a plurality of grease filters 30, a shower nozzle 32, a shower pump 34, an upper storage tank 36, and a lower storage tank 38. .
The exhaust fan 26 sucks the exhaust gas discharged from the processing apparatus 10 through the duct 28 and sends it to a chimney (not shown).
The duct 28 forms a flow path F through which exhaust gas flows.
As shown in FIGS. 2, 3, and 4A to 4C, in the present embodiment, the duct 28 includes a rectangular plate-like upper wall 2802 extending along the horizontal direction, and an upper wall 2802. A pair of side walls 2804 extending downward from both sides in the longitudinal direction of the upper wall 2802, an upstream end wall 2806 extending downward from an end located on the upstream side of the flow of exhaust gas among the longitudinal ends of the upper wall 2802, A downstream end wall 2808 extending downward from an end located on the downstream side of the exhaust gas flow of both ends in the longitudinal direction of the upper wall 2802, the upper wall 2802, a pair of side walls 2804, an upstream end wall 2806, A flow path F is formed by the downstream end wall 2808.
Moreover, the lower part of the duct 28 is not obstruct | occluded, but becomes the opening part 2810 open | released below.
As shown in FIG. 4A, a through hole 2806A is formed in the upstream end wall 2806, and this through hole 2806A is connected to the processing apparatus 10 through a pipe line 2812. A damper (not shown) is provided.
A through hole 2808A is formed in the downstream end wall 2808, and this through hole 2808A is connected to the exhaust fan 26 via a pipe line 2814. The pipe line 2814 is provided with a damper (not shown) for adjusting the air volume. ing.
Therefore, when the exhaust fan 26 operates, the exhaust gas discharged from the processing apparatus 10 flows through the flow path F of the duct 28 from the upstream end wall 2806 side to the downstream end wall 2808 side via the pipe line 2812. It is led from the pipe line 2814 to the chimney through the exhaust fan 26 and discharged into the atmosphere.

As shown in FIG. 5, the grease filter 30 includes a filter body 3002, a pair of nets 3004, and a frame portion 3006.
The filter body 3002 adsorbs useful substances of exhaust gas, is composed of metal fibers, and has a rectangular plate shape.
The metal fiber has, for example, a cotton shape, a fabric shape, or a three-dimensional network.
In the present embodiment, aluminum is used as such a metal fiber, and durability is improved. However, metal fibers using various conventionally known metal materials can be used.
The pair of nets 3004 covers both surfaces of the filter body 3002 in the thickness direction, and is configured by a rectangular metal net.
The frame portion 3006 holds the filter body 3002 and the pair of metal nets 3004, and is a metal plate that extends in a frame shape along the outer edges of the filter body 3002 and the pair of metal nets 3004. It is configured.

As shown in FIGS. 2 and 3, the plurality of grease filters 30 are arranged in parallel with each other at equal intervals along the direction in which the exhaust gas flows, and are attached to the inner surface of the duct 28 via a bracket (not shown). In the present embodiment, nine grease filters 30 are provided.
In addition, what is necessary is just to set the number of the grease filters 30 suitably according to the quantity of the useful substance contained in waste gas.
The upper edge of each grease filter 30 is in contact with the inner surface of the upper wall 2802 of the duct 28 without a gap, and a pair of side edges connected to both ends of the upper edge of each grease filter 30 and extending vertically are provided on the duct 28. A pair of side walls 2804 are in contact with the inner surfaces of the pair of side walls 2804 without any gap. As will be described later, the lower portion of each grease filter 30 is cleaned with the grease filter 30 stored in the upper storage tank 36 through the opening 2810 of the duct 28. It is in a state immersed in the sewage W2.
Therefore, the flow path F in the duct 28 is formed in a space surrounded by the inner surface of the upper wall 2802 of the duct 28, the inner surfaces of the pair of side walls 2804, and the water surface of the dirty water W2. In other words, the flow path F is comprised by the inner surface except the bottom part of the duct 28, and the water surface of the sewage W2.

As shown in FIGS. 3, 4 (A), (B), and (C), the shower nozzle 32 is disposed in the space between the adjacent grease filters 30 inside the duct 28. The useful water adsorbed by the grease filter 30 is washed by spraying the washing water W1 toward the surface.
Moreover, the washing water W1 sprayed from the shower nozzle 32 becomes a mist by vigorously colliding with the grease filter 30 and the wall surface (inner surface) of the duct 28, and the flow path F is filled with the mist.
Such mist adsorbs useful substances in the exhaust gas and falls downward to improve the purification efficiency of the exhaust gas.
Moreover, in order to promote generation | occurrence | production of mist, it is arbitrary, such as providing the plate body for mist generation in the location where the washing water W1 injected from the shower nozzle 32 hits.
In addition, a charging unit that positively or negatively charges the generated mist may be provided so that useful substances can be more efficiently adsorbed to the mist.
Moreover, mist has the property to adsorb | suck the substance of a particle size comparable as the particle size of mist, and it can adsorb | suck a small substance, so that the particle size of mist is small.
Therefore, it is useful to set conditions such as the nozzle diameter of the shower nozzle 32, the injection speed of the cleaning water W1, and the injection amount so that a mist having a particle size equivalent to that of the useful material in the exhaust gas is generated. This is advantageous in efficiently adsorbing to the mist.

The shower pump 34 supplies the cleaning water W1 stored in the filtration tank 20 to each shower nozzle 32 via a pipe 35 (see FIGS. 2 and 4A).
In the present embodiment, each shower nozzle 32 and shower pump 34 constitute a cleaning unit 24 that cleans useful materials adsorbed on the grease filter 30 by injecting cleaning water W1 to each grease filter 30, and a duct. It functions as a mist generating part that generates mist in the duct 28 by injecting water into the 28.

As shown in FIGS. 2 and 3, the upper storage tank 36 includes a rectangular plate-like bottom wall 3602 having a larger outline than the duct 28 in a plan view and extending in the horizontal direction, and a bottom. The wall 3602 includes a pair of side walls 3604 erected from both sides in the longitudinal direction and a pair of end walls 3606 erected from both ends of the bottom wall 3602 in the longitudinal direction. The upper portion of the upper storage tank 36 has an opening 3608. .
The upper storage tank 36 accommodates the lower part of the duct 28 through the opening 3608 in a state in which the longitudinal direction thereof coincides with the longitudinal direction of the duct 28, and the lower edge of the duct 28 (a pair of side walls 2804, an upstream end wall). 2806, the lower edge of the downstream end wall 2808) is located below the upper edge of the upper storage tank 36 (the upper edges of the pair of side walls 3604 and the pair of end walls 3606).
In addition, a partition wall 3610 extending perpendicularly to the longitudinal direction of the bottom wall 3602 and extending between the pair of side walls 3604 is located at a position nearer to the longitudinal direction of the bottom wall 3602 and outside the downstream end wall 2808 of the duct 28. The upper edge 3610A of the partition wall 3610 is positioned below the upper edge of the upper storage tank 36.
A through hole 3612 is formed in the portion of the bottom wall 3602 located between the partition wall 3610 and the end wall 3606 near the partition wall 3610.
Accordingly, the cleaning water is sprayed from the shower nozzle 32 to the grease filter 30, so that the sewage containing useful substances flows down from the grease filter 30 and is stored in the upper storage tank 36, and then the sewage W2 stored in the upper storage tank 36. When overflowing from the upper edge 3610A of the partition wall 3610, the sewage W2 flows down to the bottom wall 3602, and flows out downward through the through hole 3612.
Here, as shown in FIG. 2, the height of the upper edge 3610A of the partition wall 3610 is set so that the surface of the sewage W2 stored in the upper storage tank 36 is located above the lower edge 30A of the grease filter 30. By doing so, the lower part of the grease filter 30 is immersed in the sewage W2 stored in the upper storage tank 36.

The lower storage tank 38 is provided in the lower part of the upper storage tank 36, and stores the sewage W2 flowing down from the lower storage tank 38 through the through hole 3612.
The lower storage tank 38 stands from a rectangular plate-like bottom wall 3802 extending along the horizontal direction, a pair of side walls 3804 standing from both longitudinal sides of the bottom wall 3802, and both ends of the bottom wall 3802 in the longitudinal direction. A pair of end walls 3806 is provided, and the upper part of the lower storage tank 38 is an opening 3808 opened upward.
The lower storage tank 38 is provided so that most of the bottom wall 3602 including the through hole 3612 of the upper storage tank 36 is located inside the opening 3808 of the lower storage tank 38.
Further, two support members 40 are provided across the upper edges of the pair of side walls 3804 of the lower storage tank 38 at intervals in the longitudinal direction of the lower storage tank 38. A bottom wall 3802 is supported.
In this Embodiment, the upper storage tank 36 and the lower storage tank 38 comprise the storage tank which stores the waste water W2 containing the useful material which flows down from each grease filter 30 by injecting the wash water W1.

In addition, although it is good also as a single storage tank, when it carries out like this Embodiment, when the waste water W2 flows down from each grease filter 30, the upper storage tank 36 in which the waste water W2 is stirred vigorously, and the waste water W2 Since the lower storage tank 38 can be separated from the lower storage tank 38, it becomes easier to float useful materials on the surface of the sewage W2 in the lower storage tank 38, and the collection of useful objects by the first recovery unit 16 described later is more efficient. It is advantageous in carrying out.

As shown in FIG. 1, the first recovery unit 16 sucks the supernatant of the sewage W2 stored in the lower storage tank 38, recovers useful materials from the sewage W2, and returns the remaining sewage W2 to the lower storage tank 38. Thus, the sewage W2 is circulated in the lower storage tank 38.
2 and 3, the first collection unit 16 is not shown.
As such a first recovery unit 16, for example, a commercially available product such as a floating oil recovery device (model number DS1-120) of Terada Pump Manufacturing Co., Ltd. can be used.
In the present embodiment, the first recovery unit 16 includes a compressor 17.
The compressor 17 injects air into the sewage W2 stored in the lower storage tank 38.
By injecting air into the sewage W2 by the compressor 17, bubbles are attached to a useful substance having a specific gravity greater than that of water and floated on the surface of the sewage W2, thereby recovering the useful substance having a specific gravity greater than that of water. Is advantageous.
As will be described later, when useful substances are oils with a high proportion of hydrocarbons, hydrocarbons do not dissolve in water and the specific gravity of useful substances is greater than that of water, so oils with a high proportion of such hydrocarbons are useful. This is advantageous when recovered as a product.
The first recovery unit 16 recovers useful materials that have floated on the surface of the sewage W2, but does not float on the surface of the sewage W2, and is useful that has been emulsified and dissolved in the sewage W2. Things cannot be recovered.

As shown in FIG. 1, the second recovery unit 18 is useful from sewage W2 located below the surface of the sewage W2 stored in the lower storage tank 38 or near the bottom wall 3802 of the lower storage tank 38. The remaining sewage W2 is discharged.
In the present embodiment, as shown in FIGS. 2 and 3, the first feed pump 42 is provided on the bottom wall 3802 of the lower storage tank 38, and is positioned below the water surface of the sewage W <b> 2 in the lower storage tank 38. The sewage W2 is fed to the second recovery unit 18 via the first feed pump 42 and the pipe 43.
For example, the following principle can be used as the second recovery unit 18.
A cylindrical filter 1802 having an axial center extending in the horizontal direction is rotated in one direction by a motor 1804, and the sewage W2 is passed from the radially outer side to the radially inner side of the filter 1802 so that the outer surface of the filter 1802 has The useful substance contained in W2 is adhered.
A transfer roll 1806 having an axial center parallel to the filter 1802 and having a cylindrical surface that contacts the outer peripheral surface of the filter 1802 is brought into contact with the filter 1802, and the transfer roll 1806 is rotated by the filter 1802 while maintaining the contact state. Following rotation, useful materials on the outer peripheral surface of the filter 1802 are attached to the outer peripheral surface of the transfer roll 1806.
The tip of the doctor 1808 is brought into contact with the outer peripheral surface of the transfer roll 1806 and the useful material is collected by scraping the useful material from the outer peripheral surface of the transfer roll 1806 by the doctor 1808.
On the other hand, the sewage W2 that has passed through the filter 1802 is discharged from the second recovery unit 18.
As such 2nd collection | recovery part 18, commercial items, such as a brand name new type eco filter of Satomi Manufacturing Co., Ltd., can be used, for example.
In this embodiment mode, the filter 1802 is formed using a mesh formed of a photocatalytic material (eg, titanium oxide), and an ultraviolet light source 1810 that irradiates ultraviolet light toward the filter 1802 is provided.
Therefore, the chemical substance contained in the sewage W2 is decomposed by the filter 1802 (photocatalyst material) activated by irradiating ultraviolet rays, and thus, for example, harmful chemical substances contained in the sewage W2 are detoxified. This is advantageous in purifying the sewage W2.
Therefore, the second recovery unit 18 includes a photocatalyst processing unit 19 that decomposes a chemical substance contained in the sewage W2 using a photocatalyst material and ultraviolet light. The photocatalyst processing unit 19 includes the filter 1802 and the ultraviolet light. And a light source 1810.
The photocatalyst processing unit 19 only needs to be able to decompose the chemical substance contained in the sewage W2 by using a photocatalyst material, and conventionally known such as contacting the sewage W2 while irradiating the photocatalyst material provided separately from the filter 1802 with ultraviolet light Various configurations can be adopted.
The second recovery unit 18 recovers useful materials mixed in the sewage W2 without floating on the surface of the sewage W2, but cannot recover useful materials that are emulsified and dissolved in the sewage W2.

As shown in FIG. 1, the filtration tank 20 contains a porous material (not shown) that adsorbs a useful material and adsorbs the useful material from the sewage W2 discharged from the second recovery unit 18 by the porous material. Then, the sewage W2 is filtered to produce filtered water.
In the present embodiment, as shown in FIGS. 1 and 2, the sewage W2 discharged from the second recovery unit 18 is fed to the filtration tank 20 via the second feed pump 44 and a pipe (not shown). The sewage W2 is stored in the filtration tank 20.
As the porous material, for example, a commercially available product such as Y-CUBE, which is a microorganism-immobilized PVA (Polyvinyl Alcohol) carrier (polyvinyl alcohol carrier) of Yukigaya Chemical Co., Ltd., can be used.
In the filtration tank 20, the useful material that has been emulsified and dissolved in the sewage W <b> 2 is adsorbed by the porous material, so that filtered water from which the useful material has been removed is obtained.

The supply unit 22 supplies the filtered water generated in the filtration tank 20 as the cleaning water W1 from the filtration tank 20 to the cleaning unit 24. In the present embodiment, the supply unit 22 includes a shower pump 34. Yes.

The washing | cleaning part 24 wash | cleans a porous material by inject | pouring air into the filtered water stored in the filtration tank 20, for example, is comprised with a pump, a compressor, etc.
The porous material is cleaned every predetermined time. At this time, the porous material is contaminated by washing the porous material with filtered water. 2 to the collecting unit 18.
Therefore, the useful substance adsorbed on the porous material is separated and recovered by the second recovery unit 18.
In the present embodiment, the third feed pump 46 constitutes a feed unit that feeds filtered water contaminated by the cleaning of the porous material by the cleaning unit 24 to the second recovery unit 18.

In order to circulate the cleaning water W1, filtered water, and sewage W2 in the exhaust separation device 12, it is necessary to store a predetermined amount of water in the filtration tank 20, the upper storage tank 36, and the lower storage tank 38 in advance. It is.
Further, the amount of water contained in the exhaust gas is adsorbed by the cleaning water W1 for cleaning the grease filter 30, so that the total amount of water circulating in the exhaust separation device 12 increases with the passage of time. Good.
For example, when the water stored in the filtration tank 20 exceeds a specified amount, the filtered water exceeding the specified amount may be discharged.

Next, the function and effect will be described.
When the exhaust gas discharged from the processing apparatus 10 passes through the plurality of grease filters 30, the exhaust gas useful substances are efficiently adsorbed by the plurality of grease filters 30, so that exhaust without affecting the environment with less odor can be performed. Needless to say, this is advantageous in efficiently separating and recovering useful substances from the exhaust gas generated during the treatment of the object to be treated including organic substances.
In addition, since each grease filter 30 is washed with the washing water W1, the adsorption performance of useful materials by the grease filter 30 is maintained well, which is more advantageous in efficiently separating and recovering useful materials from exhaust gas. .
Moreover, since useful substances are recovered from the sewage W2 stored in the second storage tank 38 obtained by cleaning the grease filter 30, it is advantageous in efficiently separating and recovering useful substances from the exhaust gas. It becomes.
Further, in the present embodiment, the first collection unit 16 sucks the supernatant of the sewage W2 stored in the second storage tank 38 to collect useful materials from the sewage W2 and stores the remaining sewage W2 in the second storage. The sewage W2 is circulated in the second storage tank 38 by returning to the tank 38, and the sewage W2 stored in the second storage tank 38 by the second recovery unit 18 is located below the supernatant. The useful material was recovered from W2 and the remaining sewage W2 was discharged.
Therefore, it is possible to reliably collect both useful materials that float on the surface of the sewage W2 and useful materials that do not easily float on the surface of the sewage W2, which is more advantageous in efficiently separating and recovering useful materials from the exhaust gas.
Of the useful materials separated from the exhaust gas by the first and

second recovery units

16 and 18, oil can be reused as fuel, paint, resin material, and ash can be reused as building aggregate and admixture. The useful material separated and recovered from the exhaust gas can be used as a resource.
Further, the emulsified useful material contained in the sewage W2 is adsorbed and removed by the porous material in the filtration tank 20, so that filtered water containing no useful material can be obtained, and such clean filtered water is used as a grease filter. 30 can be reused as cleaning water W1 for cleaning, which is advantageous for saving the cleaning water W1.

Moreover, in this Embodiment, since a useful substance can be made to adsorb | suck to the mist which generate | occur | produced in the duct 28 by injecting the washing water W1 in the duct 28, when separating a useful substance from waste gas efficiently. More advantageous.
Moreover, in this Embodiment, the bottom part of the duct 28 was formed with the sewage W2 by immersing the lower part of the grease filter 30 in the sewage W2 stored in the storage tank, but the bottom wall of the duct 28 may be provided separately. good. In this case, a configuration for discharging the sewage W2 from the bottom wall 3802 of the duct 28 while maintaining the negative pressure in the duct 28 may be provided.
However, according to the present embodiment, there is no need to provide a configuration for maintaining the negative pressure in the duct 28, which is advantageous in simplifying the configuration of the duct 28 and achieving compactness.
In the present embodiment, since the porous material is washed by injecting air into the sewage W2 stored in the filtration tank 20, the equipment required for washing the porous material can be minimized, This is advantageous for reducing equipment costs.
Further, since the useful material can be further separated and recovered by supplying the filtered water contaminated by the cleaning of the porous material to the second recovery unit 18, it is more advantageous in efficiently separating the useful material from the exhaust gas.

Here, the oil content among useful substances separated from the exhaust gas will be described.
In an incinerator that burns and treats a processing object containing organic matter, the incinerated organic matter changes to charcoal, and the generated exhaust gas (smoke) contains water and ash.
Moreover, in the superheated steam carbonization apparatus which carbonizes the process target object containing organic substance, while organic substance carbonizes, the generated exhaust gas (smoke) contains water, dry distillation gas, and a slight oil component.
In addition, in the smoldering type volume reduction processing equipment that thermally decomposes the processing object containing organic matter, the treated organic matter changes to ceramic (ash) and the generated exhaust gas (smoke) includes water, dry distillation Gas and oil containing impurities are included.
Since the dry distillation gas contains a combustion gas such as carbon monoxide, the combustion gas can be used as a fuel.

For example, the ratio of hydrocarbons contained in the oil recovered from the exhaust gas of the smoldering type volume reduction processing apparatus using the exhaust separation device 12 of the present embodiment is the same as that of general crude oil, and the amount of heat corresponding to crude oil. It is possible to collect the oil component having a useful product.
Therefore, when a smoldering type volume reduction processing apparatus is used as the processing apparatus 10, it is extremely difficult to efficiently collect oil corresponding to crude oil as a useful product by using the exhaust separation apparatus 12 of the present embodiment. It is advantageous.
Furthermore, if waste plastics, thinned wood, bark, etc., which are low in cost and contain a large amount of hydrocarbons, are treated with a fire burning type volume reduction treatment device, the oil equivalent to crude oil is more efficiently treated. It can be recovered and is advantageous in obtaining a cheap and high value-added useful product.

DESCRIPTION OF SYMBOLS 10 Processing apparatus 12 Exhaust gas separation apparatus 14 Exhaust gas processing part 16 1st collection | recovery part (collection part)
17 Compressor 18 Second recovery unit (recovery unit)
DESCRIPTION OF SYMBOLS 19 Photocatalyst processing part 20 Filtration tank 22 Supply part 24 Washing part 26 Exhaust fan 28 Duct 2810 Opening part 30 Grease filter 32 Shower nozzle 34 Shower pump 36 Upper storage tank (storage tank)
38 Lower storage tank (storage tank)
46 Third feed pump (feeding section)
F channel

Claims

An exhaust separation device for separating the useful material from exhaust gas containing the useful material,
A duct forming a flow path through which the exhaust gas flows;
A plurality of grease filters that adsorb the useful substances arranged in the duct at intervals in the flow direction of the exhaust gas,
A cleaning unit for cleaning the useful matter adsorbed on the grease filter by spraying cleaning water on each grease filter;
A storage tank for storing sewage containing the useful material flowing down from each grease filter by spraying the washing water;
A collection unit that collects the useful material from the sewage stored in the storage tank and discharges the remaining sewage;
A filtration tank that contains the porous material that adsorbs the useful material and that filters the waste water by adsorbing the useful material from the sewage discharged from the recovery unit by the porous material to generate filtered water;
A supply unit for supplying the filtered water as the washing water from the filtration tank to the washing unit;
An exhaust gas separation device comprising:
The cleaning unit functions as a mist generating unit that generates mist in the duct by injecting the cleaning water into the duct.
The exhaust gas separation apparatus according to claim 1.
The bottom of the duct is open to the storage tank,
The lower part of the grease filter is immersed in the sewage stored in the storage tank,
The flow path is composed of an inner surface excluding the bottom of the duct and a water surface of the sewage,
The exhaust gas separation apparatus according to claim 1 or 2, wherein
The collection unit
1st collection | recovery which circulates the said sewage in the said storage tank by attracting | sucking the supernatant of the said sewage stored in the said storage tank, collect | recovering the said useful materials from the said sewage, and returning the remaining sewage to the said storage tank And
A second recovery unit that discharges the remaining sewage from the sewage stored in the storage tank from the sewage located below the supernatant;
The exhaust gas separation device according to any one of claims 1 to 3, further comprising:
The first recovery unit includes a compressor that injects air into the sewage stored in the storage tank,
The exhaust gas separation apparatus according to claim 4.
The second recovery unit includes a photocatalyst processing unit that decomposes a chemical substance contained in the sewage using a photocatalytic material and ultraviolet light.
The exhaust gas separation apparatus according to claim 4 or 5, characterized by the above.
A cleaning unit for cleaning the porous material by injecting air into the filtered water stored in the filtration tank;
The exhaust gas separation device according to any one of claims 1 to 6, wherein
A feed unit that feeds the filtered water contaminated by the washing of the porous material by the washing unit to the recovery unit;
The exhaust gas separation apparatus according to claim 7.