CN211328853U - Composting process gas filtration system - Google Patents
Composting process gas filtration system Download PDFInfo
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- CN211328853U CN211328853U CN201922042696.5U CN201922042696U CN211328853U CN 211328853 U CN211328853 U CN 211328853U CN 201922042696 U CN201922042696 U CN 201922042696U CN 211328853 U CN211328853 U CN 211328853U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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Abstract
The utility model discloses a composting process gas filtering system, which comprises a composting tank, wherein the bottom of the composting tank is provided with a first supporting plate, the first supporting plate is provided with a plurality of through holes, and a first air blower is arranged below the first supporting plate; the top of the composting tank is communicated with the bottom of the polluted gas collecting tank through a pipeline, the top of the polluted gas collecting tank is communicated with the bottom of the filtering tank through a pipeline, and a first filtering layer, a second filtering layer and a third filtering layer are sequentially arranged in the filtering tank from bottom to top; the top of the filtering tank is communicated with the bottom of the tail gas collecting tank through a pipeline. The filtering system has the advantages of simple structure, low filler cost, convenient operation, high efficiency of removing greenhouse gases and malodorous gases discharged in the composting process and the like, and has wide application prospect and higher application value in large-scale composting production.
Description
Technical Field
The utility model relates to a compost technical field, concretely relates to compost process gas filtration system.
Background
The composting technology integrates waste treatment and organic fertilizer production, is one of the main ways for recycling the livestock manure in China, and is widely applied in large scale. However, in the process of decomposing organic matters by microorganisms, a large amount of CH is released4、N2O and other greenhouse gases and NH3、H2The malodorous gases such as S, methyl mercaptan and the like cause serious pollution to the environment. Therefore, how to reduce the emission of greenhouse gases and malodorous gases in the composting process is of great significance to the realization of clean production of compost.
A great deal of research shows that the biological filter is an effective method for removing the polluted gas in the composting process,has the advantages of convenient operation, low running cost, high removal efficiency and the like. However, the main function of the pollution gas removing filter tank in the domestic composting process is deodorization, and CH is treated4、N2The filter for removing greenhouse gases such as O and the like is still few, and no relevant device for comprehensively removing the greenhouse gases and the malodorous gases is available.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned not enough of prior art, the utility model provides a can synthesize the compost process gas filtration system who gets rid of compost in-process greenhouse gas and foul smell.
In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:
the composting process gas filtering system comprises a composting tank, wherein a first supporting plate is arranged at the bottom of the composting tank, a plurality of through holes are formed in the first supporting plate, and a first air blower is arranged below the first supporting plate; the top of the composting tank is communicated with the bottom of the polluted gas collecting tank through a pipeline, the top of the polluted gas collecting tank is communicated with the bottom of the filtering tank through a pipeline, and a first filtering layer, a second filtering layer and a third filtering layer are sequentially arranged in the filtering tank from bottom to top; the top of the filtering tank is communicated with the bottom of the tail gas collecting tank through a pipeline.
Furthermore, the first filter layer is arranged on a second support plate arranged at the bottom of the filter tank, and a plurality of through holes are formed in the second support plate.
Further, the first filter layer, the second filter layer and the third filter layer are separated by a pebble layer.
Further, the bottom of compost jar is provided with first discharge gate and second discharge gate, and first backup pad setting is between first discharge gate and second discharge gate.
Further, the bottom of the filtering tank is provided with a second air blower.
Further, a gas flowmeter is arranged on a pipeline between the polluted gas collecting tank and the filtering tank.
The utility model has the advantages that: the scheme combines the emission rules of various polluted gases in the composting process and the physical and biological removal principles thereof, provides a set of biofilter system capable of comprehensively removing greenhouse gases and odor in the composting process, can ensure that the removal rate of the polluted gases reaches more than 95 percent, and can be widely applied to various composting processes with the centralized collection of the polluted gases. Fermenting the raw materials in a composting tank, discharging generated waste gas into a polluted gas collecting tank, filling tap water in the polluted gas collecting tank, absorbing meltable polluted gas in the waste gas, and then feeding the polluted gas into a filtering tank.
The first filtering layer in the filtering tank can adopt a decomposed compost and sandy soil (mixed according to the weight ratio of 6: 4) packing layer (the height is 100cm), and NH is removed through the combined action of adsorption and aerobic biological metabolism3And other malodors; the second filter layer can adopt decomposed compost + pseudomonas aeruginosa + N2O reducing agent (the inoculation amount of the two agents is 10 percent of the volume ratio) packing layer (the height is 30cm), and the O reducing agent and the packing layer are arranged in the N-shaped space under the micro-aerobic and anaerobic environments2Removing greenhouse gas component N in the waste gas under the action of O reducing bacteria2O, further removal of NH3(ii) a The third filter layer can adopt a decomposed compost, sawdust and a wheat ochrobactrum (the inoculation amount is 10 percent) packing layer (the height is 50cm), and greenhouse gas component CH in the waste gas is removed by methane-oxidizing bacteria in an aerobic environment4And finally, absorbing a small amount of pollution gas in the waste gas by a 5% boric acid solution in the tail gas collecting tank.
The composting raw materials are stacked on a first supporting plate, a first discharge port is used for discharging percolate, a second discharge port is used for discharging composting raw materials, and a second supporting plate is used for supporting a filtering layer in a filtering tank; the first air blower is favorable for driving and circulating the waste gas, the second air blower supplies air to the filter tank, and the gas flow meter is used for recording the flow of the discharged waste gas. The filtering system has the advantages of simple structure, low filler cost, convenient operation, high efficiency of removing greenhouse gases and malodorous gases discharged in the composting process and the like, and has wide application prospect and higher application value in large-scale composting production.
Drawings
FIG. 1 is a schematic diagram of the gas filtration system of the composting process.
The device comprises a first air blower 1, a first supporting plate 2, a first discharging port 3, a first discharging port 4, a second discharging port 5, a composting tank 6, a tail gas collecting tank 7, a tail gas collecting tank 8, a gas flowmeter 9, a second filtering layer 10, a first filtering layer 11, a polluted gas collecting tank 12, a second supporting plate 13, a filtering tank 14, a pebble layer 15 and a third filtering layer.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes may be made apparent to those skilled in the art within the spirit and scope of the present invention as defined and defined by the appended claims.
As shown in fig. 1, the composting process gas filtering system comprises a composting tank 5, wherein a first support plate 2 is installed at the bottom of the composting tank 5, a plurality of through holes are formed in the first support plate 2, and a first blower 1 is arranged below the first support plate 2; the top of the composting tank 5 is communicated with the bottom of a polluted gas collecting tank 11 through a pipeline, the top of the polluted gas collecting tank 11 is communicated with the bottom of a filtering tank 13 through a pipeline, and a first filtering layer 10, a second filtering layer 9 and a third filtering layer 15 are sequentially arranged in the filtering tank 13 from bottom to top; the top of the filtering tank 13 is communicated with the bottom of the tail gas collecting tank 6 through a pipeline, and the top of the tail gas collecting tank 6 is communicated with the tail gas collecting tank 7 through a pipeline.
The scheme combines the emission rules of various polluted gases in the composting process and the physical and biological removal principles thereof, provides a set of biofilter system capable of comprehensively removing greenhouse gases and odor in the composting process, can ensure that the removal rate of the polluted gases reaches more than 95 percent, and can be widely applied to various composting processes with the centralized collection of the polluted gases. The raw materials are fermented in the composting tank 5, the generated gas is discharged to enter a polluted gas collecting tank 11, tap water is filled in the polluted gas collecting tank 11, and the polluted gas which can be melted in the gas is absorbed and then enters a filtering tank 13.
The first filtering layer 10 in the filtering tank 13 is a decomposed compost and sand-soil (mixed according to the weight ratio of 6: 4) packing layer (with the height of 100cm) for removing NH through the combined action of adsorption and aerobic biological metabolism3And other odors, the second filter layer 9 is composed of decomposed compost + pseudomonas aeruginosa + N2O reducing agent (the inoculation amount of the two agents is 10 percent by volume) and a filler layer (the height is 30cm) are arranged in the N aerobic and anaerobic environment2Removing greenhouse gas component N in the waste gas under the action of O reducing bacteria2O, further removal of NH3(ii) a The third filter layer 15 adopts a decomposed compost, sawdust and a packing layer (the height is 50cm) of wheat ochrobactrum (the inoculation amount is 10 percent) to remove greenhouse gas component CH in the waste gas by methane-oxidizing bacteria in an aerobic environment4Finally, a small amount of pollution gas in the waste gas is absorbed by a 5% boric acid solution in the tail gas collecting tank 6, and the remaining small amount of tail gas is collected by a tail gas collecting tank 7.
The sand filling layer is arranged on a second supporting plate 12 arranged at the bottom of the filtering tank 13, and a plurality of through holes are formed in the second supporting plate 12; the second filter layer 10, the first filter layer 9 and the third filter layer 15 are separated by a pebble layer 14; the bottom of the composting tank 5 is provided with a first discharge port 3 and a second discharge port 4, and the first support plate 2 is arranged between the first discharge port 3 and the second discharge port 4; the bottom of the filtering tank 13 is provided with a second blower, and a gas flowmeter 8 is arranged on a pipeline between the polluted gas collecting tank 11 and the filtering tank 13.
The compost raw materials are stacked on the first supporting plate 2, the first discharge port 3 is used for discharging percolate, the second discharge port 4 is used for discharging base fertilizer raw materials, and the second supporting plate 12 is used for supporting a filtering layer in the filtering tank 13; the first blower 1 facilitates the driven circulation of the exhaust gas, the second blower supplies air to the filter tank 13 (i.e. 30L of ventilation per cubic meter of packing per minute), and the gas flow meter 8 is used to record the flow rate of the exhaust gas discharge. The filtering system has the advantages of simple structure, low filler cost, convenient operation, high efficiency of removing greenhouse gases and malodorous gases discharged in the composting process and the like, and has wide application prospect and higher application value in large-scale composting production.
Claims (6)
1. The composting process gas filtering system is characterized by comprising a composting tank (5), wherein a first supporting plate (2) is installed at the bottom of the composting tank (5), a plurality of through holes are formed in the first supporting plate (2), and a first air blower (1) is arranged below the first supporting plate (2); the top of the composting tank (5) is communicated with the bottom of a polluted gas collecting tank (11) through a pipeline, the top of the polluted gas collecting tank (11) is communicated with the bottom of a filtering tank (13) through a pipeline, and a first filtering layer (10), a second filtering layer (9) and a third filtering layer (15) are sequentially arranged in the filtering tank (13) from bottom to top; the top of the filtering tank (13) is communicated with the bottom of the tail gas collecting tank (6) through a pipeline.
2. A composting process gas filter system as claimed in claim 1, characterised in that the first filter layer (10) is arranged on a second support plate (12) mounted at the bottom of the filter tank (13), the second support plate (12) being provided with through holes.
3. A composting process gas filtering system as claimed in claim 1, characterised in that the first (10), second (9) and third (15) filter layers are separated by a pebble layer (14).
4. A composting process gas filter system as claimed in claim 1, characterised in that the bottom of the composting tank (5) is provided with a first discharge opening (3) and a second discharge opening (4), and that the first support plate (2) is arranged between the first discharge opening (3) and the second discharge opening (4).
5. A composting process gas filter system as claimed in claim 1, characterised in that the bottom of the filter tank (13) is provided with a second blower.
6. A composting process gas filtering system as claimed in claim 1, characterised in that a gas flow meter (8) is mounted on the pipe between the contaminated gas collecting tank (11) and the filtering basin (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922042696.5U CN211328853U (en) | 2019-11-22 | 2019-11-22 | Composting process gas filtration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922042696.5U CN211328853U (en) | 2019-11-22 | 2019-11-22 | Composting process gas filtration system |
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| Publication Number | Publication Date |
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| CN211328853U true CN211328853U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922042696.5U Active CN211328853U (en) | 2019-11-22 | 2019-11-22 | Composting process gas filtration system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113896583A (en) * | 2021-10-29 | 2022-01-07 | 庐江县金乔生态农业有限公司 | Agricultural organic fertilizer aerobic fermentation pipe network conveying system |
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2019
- 2019-11-22 CN CN201922042696.5U patent/CN211328853U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113896583A (en) * | 2021-10-29 | 2022-01-07 | 庐江县金乔生态农业有限公司 | Agricultural organic fertilizer aerobic fermentation pipe network conveying system |
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