CN111346498A - Biological filtration waste gas device - Google Patents
Biological filtration waste gas device Download PDFInfo
- Publication number
- CN111346498A CN111346498A CN202010140948.2A CN202010140948A CN111346498A CN 111346498 A CN111346498 A CN 111346498A CN 202010140948 A CN202010140948 A CN 202010140948A CN 111346498 A CN111346498 A CN 111346498A
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- biological
- section
- chute
- filler
- box body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/95—Specific microorganisms
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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
Abstract
The invention discloses a biological waste gas filtering and removing device, which comprises a box body, wherein a biological filtering section, a biological washing section and a chute are arranged in the box body, the biological filtering section is arranged at the upper part of the box body, the biological washing section is arranged at the middle section of the box body, the chute is arranged at the lowest part of the box body, the biological filtering section comprises a uniform spraying device, a stainless steel supporting structure II and a filler II, the biological washing section comprises a uniform spraying device, a stainless steel supporting structure I, a filler I and a uniform gas distribution system, and a gas inlet is arranged at the bottom of one end of the outer side of the box body. The invention overcomes the defects of the prior art, utilizes nutrient substances and microorganisms of the biofiltration filtrate to form a film on the porous filler in the lower trickling filter, further improves the biodegradation rate of waste gas, adopts the biofiltration section as a multi-layer steel structure bracket, adopts organic and porous inorganic fillers to mix, reduces the sedimentation and accumulation of the filler in the biofiltration section, avoids blockage and further reduces pressure drop.
Description
Technical Field
The invention relates to the technical field of waste gas filtration, in particular to a biological waste gas filtering device.
Background
In recent years, with the continuous development of industrial enterprises, the generation amount of waste gas pollution is increased, various environmental problems are generated, and the health of people is seriously influenced by the growing environmental problems. Therefore, China sets corresponding laws and regulations to limit the discharged waste gas, and the related laws and regulations are increasingly strict with the improvement of environmental awareness, so that the seeking of an economic and efficient waste gas treatment scheme is an important measure for protecting the environment and realizing the environmental health and safety targets.
At present, the main methods for treating waste gas include physical methods, chemical methods and biological methods, wherein the physical methods include adsorption, absorption, condensation, membrane separation and the like, the chemical methods include photocatalytic oxidation, catalytic combustion, regenerative combustion and the like, and the biological methods include biological filtration, biological trickling filtration and biological washing. Wherein, the physical method can only transfer the pollutants but can not eliminate the pollutants, and generally needs secondary treatment; chemical methods mostly require additional supply of sufficient energy, electricity or gas. Biological methods are distinguished in various methods due to the advantages of good treatment effect, low operation cost, no secondary pollution and the like, and are concerned.
However, the problems of large environmental influence, large occupied area, easy decay and collapse of the filler and further blockage in the engineering application of treating the waste gas by the traditional biological method still exist to be solved.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing a biological filtration waste gas filtering device which is reasonable in structure, a trickling filter device indirectly replaces a humidification section of the traditional biological filtration, so that the occupied area of the device is reduced, water is saved, and meanwhile, nutrient substances and microorganisms of the biological filtration filtrate are utilized to form a film on porous filler in the lower trickling filter device, so that the biological degradation rate of waste gas is further improved; the biological filtration section is made into a multi-layer steel structure support, and the filler is mixed by organic and porous inorganic fillers, so that the sedimentation and accumulation of the filler in the biological filtration section are reduced, the blockage is avoided, and the pressure drop is further reduced.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides a biological filtering waste gas device, includes the box, be equipped with biological filtration section in the box, biological washing section and chute, biological filtration section sets up on box upper portion, and biological washing section sets up in the box middle section, and the chute setting is in the box lower part, biological filtration section includes even spray set, stainless steel bearing structure two and packs two, biological washing section includes even spray set, stainless steel bearing structure one, packs one and even gas distribution system, box outside one end bottom sets up the air inlet, and the other end bottom sets up the waste liquid export, and the top sets up the gas vent.
Furthermore, the cross section area of the branch pipes of the uniform spraying device in the biological filtering section is gradually increased from the central position to the two ends, the area of the holes below each branch pipe is gradually increased from near to far, all the holes are provided with spray heads, the uniform spraying device is connected with a biological filtering water replenishing pump and a water tank through pipelines, and water in the water tank extracted by the biological filtering water replenishing pump is uniformly sprayed on the biological filtering filler through the spraying device for 2-3 times per day.
Furthermore, the filler II in the biological filtering section comprises one or more of activated carbon, bark, sponge, volcanic rock, perlite and peat, and is uniformly arranged on each layer of frame of the stainless steel supporting structure, and the height of each layer of the filler is not more than 10cm so as to prevent the pressure drop from increasing due to collapse.
Further, even spray set in the biological washing section links to each other with spraying liquid circulating pump, spraying liquid moisturizing pump and basin through the pipeline, spraying liquid circulating pump and spraying liquid moisturizing pump are according to chute water level control switching spraying moisturizing by the liquid level pressure difference changer, opening of waste liquid discharge outlet valve is according to PH monitor detection data automatic control.
Furthermore, the chute is positioned at the bottom of the box body, and the inclined plate is arranged inside the chute, so that the spraying liquid at the bottom can be concentrated on one side, and the circulating extraction of the spraying liquid circulating pump is facilitated.
Furthermore, the filler in the biological washing section comprises one or more of volcanic rock, perlite, sponge, rosette and honeycomb activated carbon, and the effect is good by adopting a porous material which is not easy to degrade.
Furthermore, the sectional area of the branch pipes of the uniform gas distribution system is gradually increased from the center to two ends, and the area of the hole above each branch pipe is gradually increased from the near to the far.
Compared with the prior art, the invention has the advantages that: 1. the invention utilizes the biological trickling filtration section at the bottom of the device to replace the humidification section at the front section of the traditional biological filtration, thereby reducing the floor area of the device and saving more water;
2. according to the invention, nutrient substances and microorganisms of filtrate of the biological filtration section are utilized to form a film on the porous inorganic filler in the lower biological trickling filtration section, the waste gas is in gas-liquid contact with the biological film on the porous inorganic filler, part of organic matters are absorbed by the biological film, and the microorganisms are degraded, so that the concentration of the waste gas is reduced in the pretreatment process, and the treatment efficiency of the waste gas is further improved through the subsequent treatment of the biological filtration section;
3. the invention adopts stainless steel as a multilayer bracket, and the filler of the biological filtration section is mixed by organic and porous inorganic fillers, thereby reducing the sedimentation and accumulation of the filler of the biological filtration section, avoiding blockage and further reducing pressure drop.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the packing arrangement of the biofiltration section of the present invention.
FIG. 3 is a schematic view of the internal air distribution system of the present invention.
Fig. 4 is a schematic structural view of an internal uniform spraying device of the invention.
FIG. 5 is a schematic view of the inner chute configuration of the present invention.
As shown in the figure: 1. the device comprises a box body, 2 an air inlet, 3 an even air distribution system, 4 a stainless steel support structure I, 5 a filler I, 6 a stainless steel support structure II, 7 a filler II, 8 an air outlet, 9 an even spraying device, 10 a biological filtration water replenishing pump, 11 a water tank, 12 a chute, 13 a spraying liquid circulating pump, 14 a liquid level differential pressure transmitter, 15 a PH monitor, 16 a spraying liquid water replenishing pump and 17 a waste liquid outlet.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.
The present invention will be described in further detail with reference to the accompanying drawings.
The invention is implemented concretely, the biological filtering and waste gas removing device comprises a box body 1, a biological filtering section, a biological washing section and a chute 12 are arranged in the box body 1, the biological filtering section is arranged at the upper part of the box body 1, the biological washing section is arranged at the middle section of the box body 1, the chute 12 is arranged at the lowest part of the box body 1, the biological filtering section comprises a uniform spraying device 9, a stainless steel supporting structure II 6 and a filler II 7, the biological washing section comprises a uniform spraying device 9, a stainless steel supporting structure I4, a filler I5 and a uniform gas distribution system 3, an air inlet 2 is arranged at the bottom of one end of the outer side of the box body 1, a waste liquid discharge outlet 17 is arranged at the bottom of the other end of the outer side.
The sectional area of the branch pipes of the uniform spraying device 9 in the biological filtering section is gradually increased from the central position to the two ends, the area of the holes below each branch pipe is gradually increased from near to far, all the holes are provided with spray heads, the uniform spraying device 9 is connected with a biological filtering water replenishing pump 10 and a water tank 11 through pipelines, the biological filtering water replenishing pump 10 extracts water in the water tank 11 and uniformly sprays the water on the biological filtering filler through the spraying device for 2-3 times per day.
The second filler 7 in the biological filtering section comprises one or more of activated carbon, bark, sponge, volcanic rock, perlite and peat which are mixed and uniformly arranged on each layer of frame of the stainless steel supporting structure, and the height of each layer of the organic and inorganic mixed filler is not more than 10cm so as to prevent the pressure drop from increasing due to collapse.
The uniform spraying device 9 in the biological washing section is connected with a spraying liquid circulating pump 13, a spraying liquid water supplementing pump 16 and a water tank 11 through pipelines, the spraying liquid circulating pump 13 and the spraying liquid water supplementing pump 16 are switched to spray water supplement through a liquid level differential pressure transmitter 14 according to water level control in a chute 12, and the opening of a valve of a waste liquid discharge port 17 is automatically controlled according to detection data of a PH monitor 15.
The chute 12 is positioned at the bottom of the box body 1, and an inclined plate is arranged in the chute, so that the spraying liquid at the bottom can be concentrated on one side, and the circulating extraction of the spraying liquid circulating pump 13 is facilitated.
The filler I5 in the biological washing section comprises one or more of volcanic rock, perlite, sponge, rosette and honeycomb activated carbon, and is made of a porous material which is not easy to degrade, so that the effect is good.
The sectional area of the branch pipes of the uniform gas distribution system 3 is gradually increased from the central position to the two ends, and the area of the hole above each branch pipe is gradually increased from the near to the far.
The method comprises the following operation steps: waste gas enters from the inlet of the device and is uniformly delivered to the biological washing section through the uniform gas distribution system 3, the humidity of the waste gas is improved while part of waste gas components are removed, the pretreated waste gas is further and thoroughly degraded through the biological filtering section, and the purified gas is discharged from the exhaust port 8.
Biofiltration shower water provides sufficient moisture for this section microorganism through the biofiltration section, and a small amount of seepage liquid carrier nutrient substance and microorganism get into the biotrickling section of lower part, and the water circulating system of biotrickling section is controlled by the liquid level pressure difference changer 14 of bottom, and when the pH detected value falls outside normal range, bottom waste liquid bleeder valve is automatic to be opened, makes liquid slowly discharge, continues constantly to supply new water simultaneously, and the valve is closed to the pH value when normal.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A biological filtration waste gas device, includes box (1), its characterized in that: be equipped with the biological filtration section in box (1), biological washing section and chute (12), the biological filtration section sets up on box (1) upper portion, and the biological washing section sets up in box (1) middle section, and chute (12) set up in box (1) lower part, the biological filtration section includes even spray set (9), stainless steel bearing structure two (6) and two (7) of packing, the biological washing section includes even spray set (9), stainless steel bearing structure one (4), packs one (5) and even gas distribution system (3), box (1) outside one end bottom sets up air inlet (2), and the other end bottom sets up lets out export (17), and the top sets up gas vent (8).
2. A biological filter-off gas unit according to claim 1, characterized in that: the cross section area of the branch pipe of the uniform spraying device (9) in the biological filtration section is gradually increased from the central position to two ends, the hole area of the lower part of each branch pipe is gradually increased from near to far, all holes are provided with spray heads, and the uniform spraying device (9) is connected with a biological filtration water replenishing pump (10) and a water tank (11) through a pipeline.
3. A biological filter-off gas unit according to claim 1, characterized in that: and the second filler (7) in the biological filtering section comprises one or more of activated carbon, bark, sponge, volcanic rock, perlite and peat which are mixed and uniformly arranged on each layer of frame of the stainless steel supporting structure.
4. A biological filter-off gas unit according to claim 1, characterized in that: even spray set (9) in the biological washing section link to each other through pipeline and spray liquid circulating pump (13), spray liquid moisturizing pump (16) and basin (11), spray liquid circulating pump (13) and spray liquid moisturizing pump (16) and switch according to chute (12) interior water level control by liquid level differential pressure changer (14) and spray the moisturizing, opening of waste liquid discharge outlet (17) valve detects data automatic control according to PH monitor (15).
5. A biological filter-off gas unit according to claim 1, characterized in that: the chute (12) is positioned at the bottom of the box body (1), and an inclined plate is arranged inside the chute.
6. A biological filter-off gas unit according to claim 1, characterized in that: and the first filler (5) in the biological washing section comprises one or more of volcanic rock, perlite, sponge, rosette and honeycomb activated carbon.
7. A biological filter-off gas unit according to claim 1, characterized in that: the sectional area of the branch pipes of the uniform gas distribution system (3) is gradually increased from the central position to the two ends, and the area of the hole above each branch pipe is gradually increased from near to far.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010140948.2A CN111346498A (en) | 2020-03-03 | 2020-03-03 | Biological filtration waste gas device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010140948.2A CN111346498A (en) | 2020-03-03 | 2020-03-03 | Biological filtration waste gas device |
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| Publication Number | Publication Date |
|---|---|
| CN111346498A true CN111346498A (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010140948.2A Pending CN111346498A (en) | 2020-03-03 | 2020-03-03 | Biological filtration waste gas device |
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| CN (1) | CN111346498A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112191095A (en) * | 2020-09-03 | 2021-01-08 | 青岛市金旭环境工程有限公司 | Biomembrane exhaust-gas treatment equipment |
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| CN110818083A (en) * | 2019-12-03 | 2020-02-21 | 杭州师范大学 | Realize integral type reactor of resourceful denitrogenation sulphur removal |
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2020
- 2020-03-03 CN CN202010140948.2A patent/CN111346498A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202844876U (en) * | 2012-08-23 | 2013-04-03 | 江苏碧程环保设备有限公司 | Novel high-efficiency biological deodorization purifier |
| US20140370578A1 (en) * | 2013-06-18 | 2014-12-18 | China Petroleum & Chemical Corporation | Modified ceramsite packing useful for biomembrane trickling filter and a process for removing so2 from flue gas using the trickling filter |
| CN208542028U (en) * | 2018-06-13 | 2019-02-26 | 广东中微环保生物科技有限公司 | A kind of distribution device and the bio-trickling filter using the distribution device |
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| CN209166222U (en) * | 2018-09-27 | 2019-07-26 | 宁波奥克斯电气股份有限公司 | A kind of spraying mechanism and condenser automatic flushing device |
| CN109513335A (en) * | 2018-12-22 | 2019-03-26 | 邹智 | A kind of combined tower emission-control equipment |
| CN110115923A (en) * | 2019-05-06 | 2019-08-13 | 上海坦泽环保科技有限公司 | It is a kind of for examining the technique of testing laboratory's exhaust-gas treatment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112191095A (en) * | 2020-09-03 | 2021-01-08 | 青岛市金旭环境工程有限公司 | Biomembrane exhaust-gas treatment equipment |
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Application publication date: 20200630 |