CN110559828A - Small tail gas absorption and deodorization device for sludge composting tail gas treatment - Google Patents
Small tail gas absorption and deodorization device for sludge composting tail gas treatment Download PDFInfo
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- CN110559828A CN110559828A CN201910839969.0A CN201910839969A CN110559828A CN 110559828 A CN110559828 A CN 110559828A CN 201910839969 A CN201910839969 A CN 201910839969A CN 110559828 A CN110559828 A CN 110559828A
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- tail gas
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- gas treatment
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 46
- 239000010802 sludge Substances 0.000 title claims abstract description 22
- 238000004332 deodorization Methods 0.000 title claims abstract description 10
- 238000009264 composting Methods 0.000 title claims description 12
- 239000007788 liquid Substances 0.000 claims abstract description 41
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 11
- 239000001110 calcium chloride Substances 0.000 claims abstract description 11
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 11
- 238000001179 sorption measurement Methods 0.000 claims abstract description 10
- 239000002361 compost Substances 0.000 claims abstract description 8
- 239000000243 solution Substances 0.000 claims description 34
- 238000005192 partition Methods 0.000 claims description 16
- 230000001877 deodorizing effect Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- -1 polyethylene Polymers 0.000 claims description 4
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 67
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 39
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 21
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 21
- 239000011257 shell material Substances 0.000 description 37
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 description 7
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 6
- 229910021529 ammonia Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229920000915 polyvinyl chloride Polymers 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 235000019270 ammonium chloride Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 235000017060 Arachis glabrata Nutrition 0.000 description 1
- 241001553178 Arachis glabrata Species 0.000 description 1
- 235000010777 Arachis hypogaea Nutrition 0.000 description 1
- 235000018262 Arachis monticola Nutrition 0.000 description 1
- 229920006814 PVC, UPVC Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 239000004067 bulking agent Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003864 humus Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/58—Ammonia
-
- 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
- B01D53/75—Multi-step processes
-
- 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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention belongs to the technical field of tail gas treatment, and discloses a small tail gas absorption and deodorization device for sludge compost tail gas treatment. This device includes adsorption tank, baffle, sponge layer, inlet, intake pipe, valve, liquid outlet, shell and support, is equipped with solution in the shell, and the baffle is located the inside upper portion of shell, the adsorption tank is placed above the baffle, intake pipe and inlet set up upper portion in the shell, and lie in between baffle and the solution liquid level, and intake pipe one end is passed the shell and is led to the solution bottom, and the other end stretches out the shell, valve and liquid outlet set up in the shell bottom, and the shell bottom is fixed on the support. The invention effectively removes the ammonia gas in the tail gas by utilizing the solubility of the ammonia gas in the solution, achieves the purpose of absorbing a small amount of hydrogen sulfide in the tail gas by utilizing the acidity and alkalinity of the ammonia gas and the hydrogen sulfide, and effectively solves the problem of tail gas emission by utilizing calcium chloride to absorb residual ammonia gas.
Description
Technical Field
The invention belongs to the technical field of tail gas treatment, and particularly relates to a small tail gas absorption and deodorization device for sludge compost tail gas treatment.
background
The sludge composting utilization technology is one of the important modes of sludge resource treatment, and is a process of continuously degrading organic matters under the action of microorganisms under certain conditions and producing a product suitable for land utilization. Sludge, conditioners (sawdust, straws, leaves, manure, garbage) and bulking agents (wood chips, straws, peanut shells, corncobs and the like) are usually piled and retted under certain conditions, and the biological process of converting biodegradable organic matters into stable humus under controlled conditions is promoted by utilizing the action of microorganisms. However, some adverse environmental effects are also produced during sludge composting. A large amount of organic substances are consumed by microorganism propagation and activity in the sludge composting process, a large amount of ammonia gas and a small amount of hydrogen sulfide gas are generated and discharged into the air to cause harm to the air, and therefore a tail gas treatment device is required to be used for carrying out tail gas treatment on the air. However, the conventional tail gas treatment devices on the market are all applied to large-scale sludge composting devices or other large-scale devices, the tail gas treatment capacity is large, the energy consumption is large, the cost is high, the efficiency of the tail gas treatment device cannot be fully exerted when the tail gas treatment device is applied to a device generating less tail gas, the resource waste is caused, and a new small tail gas treatment and deodorization device needs to be researched.
Disclosure of Invention
The invention aims to solve the technical problem that gases such as ammonia gas, hydrogen sulfide and the like generated in the sludge composting process are discharged into the air to cause pollution and odor, and provides a small absorption and deodorization device for tail gas treatment.
In order to solve the above-described problems, the present invention is achieved by the following means.
The utility model provides a small-size tail gas absorbs deodorizing device of sludge compost tail gas treatment, includes adsorption tank, baffle, sponge layer, inlet, intake pipe, valve, liquid outlet, shell and support, the solution is equipped with in the shell, the baffle is located the inside upper portion of shell, the adsorption tank is placed above the baffle, the sponge layer sets up between adsorption tank and shell, intake pipe and inlet set up in upper portion in the shell, and be located between baffle and the solution liquid level, intake pipe one end is passed the shell leads to the solution bottom, and the other end stretches out the shell, the liquid outlet sets up in the shell bottom, the liquid outlet bottom is provided with the valve, the shell bottom is fixed on the support.
Furthermore, the solution is saturated saline, the tail gas contains a large amount of ammonia gas and a small amount of hydrogen sulfide gas, the ammonia gas is dissolved in the saturated saline to generate ammonia water and ammonium chloride, the solution is alkalescent, and the hydrogen sulfide gas is acidic and reacts with the ammonia water after being dissolved in water, so that more hydrogen sulfide is dissolved in the saturated saline, and more ammonia gas and hydrogen sulfide gas are absorbed.
Furthermore, calcium chloride is filled in the absorption tank and is used for absorbing residual ammonia in the tail gas. After the tail gas is dissolved in saturated saline water, the tail gas enters an absorption tank through a partition plate, calcium chloride is filled in the absorption tank, if the tail gas contains residual ammonia gas, the ammonia gas in the tail gas and the calcium chloride undergo a complex reaction to absorb the ammonia gas in the tail gas, and the tail gas is purified and discharged into the air.
Furthermore, the partition board is in a mesh shape, the inner diameter of the mesh is 2-5mm, the distance from the top to the top is 35-55cm, and the partition board is made of one of a stainless steel plate, a PVC plate and a polyethylene plate.
Furthermore, the absorption tank is placed on the partition plate, the outer body of the absorption tank is made of PVC materials or stainless steel plates, the bottom and the top of the absorption tank are 100-mesh screens, the diameter of the absorption tank is 14-19cm, and the height of the absorption tank is 10-30 cm.
Further, the thickness of the sponge layer is 1-2cm, and the height of the sponge layer is the same as that of the absorption tank.
furthermore, the liquid inlet is positioned at a position 10-15cm below the partition plate and at a position 10-20cm above the liquid level of the solution, the liquid inlet is funnel-shaped, the solution is convenient to add, and a cover is arranged on the liquid inlet and used for sealing.
Furthermore, the liquid outlet is funnel-shaped, and the valve on the liquid outlet controls the solution to be discharged.
Furthermore, the shell is cylindrical, the inner diameter is 15-20cm, the height is 80-110cm, and the material is stainless steel or PVC.
Furthermore, the support is square, and the material is the same with the shell material, digs a round hole in the middle and is together fixed with the shell bottom for support shell makes it can not empty.
The invention adopts a method of combining saturated brine and calcium chloride to absorb ammonia gas and hydrogen sulfide gas in tail gas. The ammonia is dissolved in the saturated saline in a large amount, the solution is alkaline and can react with acidic substances after the ammonia is dissolved in the saline, the hydrogen sulfide gas is acidic after being dissolved in the water, and the hydrogen sulfide reacts with the ammonia water to promote the hydrogen sulfide to be continuously dissolved in the water. Part of ammonia gas which is not absorbed by saturated brine is absorbed by calcium chloride to generate complex reaction when passing through the absorption tank, so that tail gas is purified, and the method has remarkable environmental and economic benefits. The environmental benefits include absorption of harmful components in the tail gas, no generation of malodour, and improved regional air quality. The economic benefits include simple structure, low cost, low investment, no power consumption, saved operating investment cost and easy management.
Drawings
FIG. 1 is a schematic view showing the structure of a tail gas absorption deodorizing device according to the present invention;
Wherein, 1, an air inlet pipe; 2. a partition plate; 3. an absorption tank; 4. a sponge layer; 5. a liquid inlet; 6. a housing; 7. a solution; 8. a valve; 9. a liquid outlet, 10 and a support.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
As shown in fig. 1, the embodiment provides a small tail gas absorption and deodorization device for tail gas treatment, which mainly comprises an air inlet pipe 1, a partition plate 2, an absorption tank 3, a sponge layer 4, a liquid inlet 5, a shell 6, a solution 7, a valve 8, a liquid outlet 9 and a support 10, wherein the above components form the tail gas absorption and deodorization device.
Intake pipe 1 sets up in upper-middle part of shell 6, and is located between baffle 2 and the 7 liquid levels of solution, and one end is passed shell 6 leads to 7 bottoms of solution, and the other end stretches out shell 6, connects the tail gas source, and intake pipe 1 pipeline material can be PVC, UPVC, PPR, plastic-aluminum pipe etc. selects different intake pipe internal diameters according to the size of tail gas volume and device, and DN15, DN20, DN25, DN32, DN40, DN50 all can be selected according to the condition.
The partition 2 is located at the upper part of the inside of the housing 6, 35-55cm from the top, on which the absorption tank 3 is placed, and carries the absorption tank 3 and separates it from the solution 7. The partition plate 2 is made of one of a stainless steel plate, a PVC plate and a polyethylene plate, the partition plate 2 is in a mesh shape, the inner diameter of a mesh is 2-5mm, and the partition plate 2 can bear the absorption tank 3 and allow tail gas to pass through and enter the absorption tank 3.
The outer body of the absorption tank 3 can be made of PVC materials or stainless steel plates, the bottom and the top of the absorption tank are 100-mesh screens, the tail body can smoothly enter the absorption tank 3, the diameter of the absorption tank 3 is slightly smaller than the inner diameter of the shell 6 by 1-2cm according to the size of the shell 6, and the height of the absorption tank is 10-30 cm. The filler in the absorption tank 3 is calcium chloride, and the calcium chloride can absorb ammonia in the tail gas, generate a complex reaction with the ammonia, absorb the ammonia in the tail gas, and achieve the purpose of purifying the tail gas. One layer of sponge layer 4 is clamped between the absorption tank 3 and the shell 6, the thickness of the sponge layer 4 is 1-2cm, the height of the sponge layer is equal to that of the absorption tank, the sponge layer is filled between the shell 6 and the absorption tank 3, and the tail gas is prevented from flowing out through a gap between the shell 6 and the absorption tank 3 and not passing through the absorption tank 3, so that the substance in the tail gas is not completely absorbed.
The liquid inlet 5 is positioned at the middle upper part of the shell and is about 10-15cm below the clapboard 2 and is about 10-20cm away from the liquid level of the solution. The outside of the liquid inlet 5 is funnel-shaped, so that the solution 7 is conveniently added, and the funnel outside the liquid inlet 5 is provided with a cover, so that the funnel can be folded when the solution is not added, thereby avoiding the tail gas from escaping from the liquid inlet 5 and preventing external dust, impurities and the like from entering the device to pollute the solution 7. The solution 7 fed into the liquid inlet 5 is saturated saline. The tail gas contains a large amount of ammonia gas and a small amount of hydrogen sulfide gas, the ammonia gas is very easy to dissolve in water, but the solubility of the ammonia gas in saturated saline is larger, so that the saturated saline is selected as a solution 7 for dissolving the ammonia gas, the ammonia gas is dissolved in the saline to generate ammonia water and ammonium chloride, and the solution is alkalescent. The hydrogen sulfide gas is acidic and reacts with ammonia water after being dissolved in water, so that more hydrogen sulfide is dissolved in saturated brine, and more ammonia gas and hydrogen sulfide gas are absorbed.
The shell 6 is an elongated cylinder with a diameter of 15-20cm and a height of 80-110 cm. The material is stainless steel material or PVC material.
Liquid outlet 9 is located the shell 6 bottom, and liquid outlet 9 is hourglass hopper-shaped, has valve 8 control solution 7 on the liquid outlet 9 and discharges, can manually control opening and shutting of valve, can be effectively with solution 7 whole discharge and do not remain.
Support 10 constitutes the base of shell 6, and shell 6 is whole to be long and thin form, emptys easily, and there are valve 8 and liquid outlet 9 shell 6 bottom, consequently need erect shell 6 and get up, and a support 10 is done as the base to the lower part, and support 10 is the square, and the material is the same with shell 6 material, digs a round hole in the middle of and is in the same place with shell bottom 6 welding, has improved the stability of device, also leaves certain space in liquid outlet 9 bottoms, makes things convenient for the discharge of solution 7.
The small tail gas absorbing and deodorizing device of the invention has the following working process:
The shell 6 is as the device carrier, and support 10 plays the effect of support shell 6, and intake pipe 1 one end is passed the shell leads to solution 7 bottom, and the other end stretches out shell 6, and the adsorption tank 3 is placed on baffle 2, and sponge layer 4 is located between adsorption tank 3 and device shell 6. The liquid inlet 5 is positioned at the middle upper part of the shell 6, and the solution 7 is saturated saline and enters from the liquid inlet 5. The tail gas contains a large amount of ammonia gas and a small amount of hydrogen sulfide gas, after the tail gas enters saturated saline water, the ammonia gas is dissolved in the saturated saline water in a large amount to generate ammonia water and ammonium chloride, so that the solution is alkalescent, the hydrogen sulfide is acidic, the hydrogen sulfide is dissolved in water and reacts with the ammonia water to consume the hydrogen sulfide and the ammonia gas dissolved in the water, and the dissolution of the ammonia gas and the hydrogen sulfide in the saturated saline water is promoted. After the tail gas is dissolved by saturated saline water, the tail gas enters an absorption tank 3 through a partition plate 2, calcium chloride is filled in the absorption tank 3, if the tail gas contains residual ammonia gas, the ammonia gas in the tail gas and the calcium chloride undergo a complex reaction to absorb the ammonia gas in the tail gas, and the tail gas is purified and discharged into the air.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make various changes and modifications within the spirit and scope of the present invention without departing from the spirit and scope of the appended claims.
Claims (10)
1. The utility model provides a small-size tail gas absorbs deodorizing device that sludge compost tail gas was handled, a serial communication port, the device includes adsorption tank, baffle, sponge layer, inlet, intake pipe, valve, liquid outlet, shell and support, the solution is equipped with in the shell, the baffle is located the inside upper portion of shell, the adsorption tank is placed above the baffle, the sponge layer sets up between adsorption tank and shell, intake pipe and inlet set up in upper portion in the shell, and be located between baffle and the solution liquid level, intake pipe one end is passed the shell leads to the solution bottom, and the other end stretches out the shell, the liquid outlet sets up in the shell bottom, the liquid outlet bottom is provided with the valve, the shell bottom is fixed on the support.
2. The sludge composting tail gas treatment small tail gas absorption deodorizing device according to claim 1, wherein the solution is saturated brine.
3. The small tail gas absorption and deodorization device for sludge composting tail gas treatment as claimed in claim 1, wherein the inside of the absorption tank is filled with calcium chloride.
4. The small tail gas absorbing and deodorizing device for sludge composting tail gas treatment as claimed in claim 1, wherein the partition is 35-55cm from the top of the housing, the partition is made of one of stainless steel plate, PVC plate and polyethylene plate, the partition is mesh-shaped, and the inner diameter of the mesh is 2-5 mm.
5. the small tail gas absorbing and deodorizing device for sludge compost tail gas treatment as claimed in claim 1, wherein the outer body of the absorption tank is made of PVC or stainless steel plate, the bottom and the top are 100 mesh screens, the diameter of the absorption tank is 14-19cm, and the height of the absorption tank is 10-30 cm.
6. The small tail gas absorbing and deodorizing device for sludge composting tail gas treatment as claimed in claim 1, wherein the sponge layer is 1-2cm thick and the height is the same as that of the absorption tank.
7. The small tail gas absorption and deodorization device for sludge compost tail gas treatment as claimed in claim 1, wherein the liquid inlet is located 10-15cm below the partition plate, 10-20cm above the liquid level of the solution, the liquid inlet is funnel-shaped, the solution is conveniently added, and a cover is arranged on the liquid inlet for sealing.
8. The small tail gas absorbing and deodorizing device for sludge composting tail gas treatment as claimed in claim 1, wherein the liquid outlet is funnel-shaped, and the liquid outlet is controlled by a valve to discharge the solution.
9. The small tail gas absorbing and deodorizing device for sludge compost tail gas treatment as claimed in claim 1, wherein the housing is cylindrical, has an inner diameter of 15-20cm and a height of 80-110cm, and is made of stainless steel or PVC.
10. The small tail gas absorbing and deodorizing device for sludge compost tail gas treatment as claimed in claim 1, wherein the bracket is square and made of the same material as the housing, and a circular hole is dug in the middle and fixed with the bottom of the housing for supporting the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910839969.0A CN110559828A (en) | 2019-09-06 | 2019-09-06 | Small tail gas absorption and deodorization device for sludge composting tail gas treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910839969.0A CN110559828A (en) | 2019-09-06 | 2019-09-06 | Small tail gas absorption and deodorization device for sludge composting tail gas treatment |
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| CN110559828A true CN110559828A (en) | 2019-12-13 |
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| CN201910839969.0A Pending CN110559828A (en) | 2019-09-06 | 2019-09-06 | Small tail gas absorption and deodorization device for sludge composting tail gas treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113069875A (en) * | 2021-03-31 | 2021-07-06 | 中钢集团鞍山热能研究院有限公司 | Treatment system and process suitable for waste gas of circulating ammonia water pool of coking plant |
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