CN111265999A - Acid mist waste gas treatment system for metallurgy - Google Patents
Acid mist waste gas treatment system for metallurgy Download PDFInfo
- Publication number
- CN111265999A CN111265999A CN202010089723.9A CN202010089723A CN111265999A CN 111265999 A CN111265999 A CN 111265999A CN 202010089723 A CN202010089723 A CN 202010089723A CN 111265999 A CN111265999 A CN 111265999A
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- Prior art keywords
- acid mist
- treatment system
- treatment
- gas treatment
- washing tower
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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
- B01D53/81—Solid phase processes
- B01D53/82—Solid phase processes with stationary reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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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
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
Abstract
The invention discloses an acid mist waste gas treatment system for metallurgy. In the invention, the high-temperature acid mist generated by the acid washing treatment of the metal in the acid washing tank is firstly sprayed by the spray head to remove dust particles in the acid mist, then is subjected to temperature reduction treatment on the high-temperature acid mist by the fin heat exchanger, and is sequentially subjected to continuous adsorption treatment, dust removal treatment and neutralization treatment by a plurality of packing layers, toxic substances in the acid mist are repeatedly treated for a plurality of times, and finally the treated air is cooled by the fin heat exchanger to be in accordance with the emission standard and can be discharged into the atmosphere, in addition, the waste water generated by the acid mist treatment is continuously used after neutralization treatment, temperature reduction treatment and precipitation, the acid mist waste gas treatment system for metallurgy can meet the emission standard for treating the acid mist, the temperature of the discharged air is lower, the environment cannot be influenced, and meanwhile, the generated waste water can be recycled, thereby being beneficial to reducing the cost of enterprises, water resource is saved, and the practicability is good.
Description
Technical Field
The invention relates to the related field of waste gas treatment, in particular to an acid mist waste gas treatment system for metallurgy.
Background
The pollution of waste gas is the biggest problem in the current atmospheric environment protection, and with the development of industry and economy, more and more waste gas is discharged, and the problem of atmospheric pollution is more and more serious. On the other hand, because of the difference of production process and raw materials, the exhaust gas discharged by various industries has different components and concentrations, and part of the exhaust gas also has acidity and is comparatively humid, namely what we often say as acid mist, and in a plurality of industries, the metallurgy industry is the industry which generates the most acid mist.
Metal is at the in-process of smelting, can carry out the pickling through the descaling bath and handle, the in-process of pickling of the pickle through the descaling bath of high temperature metal, can produce more acid mist, present metallurgy is handled the absorptive mode of whirl washing spray method cooperation alkali lye that adopts usually to produce among the metal pickling process, but at the in-process to the acid mist treatment, can't be to the cooling that the acid mist of high temperature goes on, lead to the exhaust air temperature higher, cause certain high temperature pollution to the environment, the high temperature that sprays the acid mist production simultaneously and have acidic waste water and alkali lye in with the back direct discharge sewage factory, cause the waste of water resource.
Therefore, an acid mist waste gas treatment system for metallurgy is provided.
Disclosure of Invention
The invention aims to provide an acid mist waste gas treatment system for metallurgy, which solves the problems in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a metallurgical acid mist exhaust-gas treatment system, includes the acid mist scrubbing tower, the input of acid mist scrubbing tower is connected with the admission line, the output of acid mist scrubbing tower has connected gradually defroster, detection device and chimney through exhaust duct, install two fin heat exchangers and a plurality of packing layer in the acid mist scrubbing tower, the bottom that the acid mist scrubbing tower is close to the output has connected gradually neutralization apparatus, sedimentation tank and clean water basin through the drain pipe, the clean water basin is connected with two fin heat exchangers's input through pumping mechanism, fin heat exchanger's output is connected with a plurality of shower nozzles through conveying mechanism.
Preferably, a plurality of said layers of packing are located between two finned heat exchangers.
Preferably, the bottom of the acid mist washing tower is arranged obliquely.
Preferably, an exhaust fan is arranged between the demister and the acid mist washing tower.
Preferably, a cooling device is arranged between the neutralization device and the sedimentation tank.
Preferably, the pumping mechanism comprises a first water pump, the input end of the first water pump is connected with the clean water tank through a pumping pipe, and the output end of the first water pump is connected with the input ends of the two fin heat exchangers through a conveying pipe.
Preferably, the conveying mechanism comprises a second water pump installed at the top of the acid mist washing tower, the input end of the second water pump is connected with the output ends of the two fin heat exchangers through a connecting pipe, and the output end of the second water pump is connected with the plurality of spray heads through a connecting pipe.
Compared with the prior art, the invention has the beneficial effects that:
in the invention, the high-temperature acid mist generated by the acid washing treatment of the metal in the acid washing tank is firstly sprayed by the spray head to remove dust particles in the acid mist, then is subjected to temperature reduction treatment on the high-temperature acid mist by the fin heat exchanger, and is sequentially subjected to continuous adsorption treatment, dust removal treatment and neutralization treatment by a plurality of packing layers, toxic substances in the acid mist are repeatedly treated for a plurality of times, and finally the treated air is cooled by the fin heat exchanger to be in accordance with the emission standard and can be discharged into the atmosphere, in addition, the waste water generated by the acid mist treatment is continuously used after neutralization treatment, temperature reduction treatment and precipitation, the acid mist waste gas treatment system for metallurgy can meet the emission standard for treating the acid mist, the temperature of the discharged air is lower, the environment cannot be influenced, and meanwhile, the generated waste water can be recycled, thereby being beneficial to reducing the cost of enterprises, water resource is saved, and the practicability is good.
Drawings
FIG. 1 is a schematic structural diagram of an acid mist waste gas treatment system for metallurgy according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of an acid mist scrubber in the acid mist waste gas treatment system for metallurgy according to the present invention.
In the figure: 1. an air intake duct; 2. an acid mist washing tower; 3. a drain pipe; 4. a neutralization device; 5. a cooling device; 6. a sedimentation tank; 7. a clean water tank; 8. a water pumping pipe; 9. a first water pump; 10. a delivery pipe; 11. an exhaust duct; 12. an exhaust fan; 13. a demister; 14. a detection device; 15. a chimney; 16. a second water pump; 17. a connecting pipe; 18. a finned heat exchanger; 19. a filler layer; 20. and (4) a spray head.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-2, the invention also provides an acid mist waste gas treatment system for metallurgy, which comprises an acid mist washing tower 2, wherein the input end of the acid mist washing tower 2 is connected with an air inlet pipeline 1, the output end of the acid mist washing tower 2 is sequentially connected with a demister 13, a detection device 14 and a chimney 15 through an exhaust pipeline 11, two fin heat exchangers 18 and a plurality of packing layers 19 are installed in the acid mist washing tower 2, the packing layers 19 are positioned between the two fin heat exchangers 18, an exhaust fan 12 is arranged between the demister 13 and the acid mist washing tower 2, and the packing layers 19 are an alkaline material packing layer and an active carbon packing layer and are used for neutralizing acid mist; the fin heat exchanger 18 is used for cooling the acid mist; the detection device 14 is used for detecting whether the discharged air reaches the standard; the demister 13 functions to demist the discharged air.
Wherein, an exhaust fan 12 is arranged between the demister 13 and the acid mist washing tower 2, and the exhaust fan 12 is used for accelerating the treatment efficiency of the acid mist in the acid mist washing tower 2.
The bottom of the acid mist washing tower 2 close to the output end is sequentially connected with a neutralization device 4, a sedimentation tank 6 and a clean water tank 7 through a drain pipe 3, the clean water tank 7 is connected with the input ends of two fin heat exchangers 18 through a water pumping mechanism, the bottom of the acid mist washing tower 2 is obliquely arranged, a cooling device 5 is arranged between the neutralization device 4 and the sedimentation tank 6, and the bottom of the acid mist washing tower 2 is obliquely arranged and is used for accelerating the speed of discharging wastewater into the neutralization device 4; the cooling device 5 is used for cooling the water neutralized by the neutralization device 4; the sedimentation tank 6 is used for settling the treated water; the clean water tank 7 stores the precipitated water.
Wherein, the mechanism of drawing water includes first water pump 9, and the input of first water pump 9 passes through the drinking-water pipe 8 to be connected with clean water basin 7, and the output of first water pump 9 passes through conveyer pipe 10 to be connected with two fin heat exchanger 18's input, with the cold water suction in the clean water basin 7 to fin heat exchanger 18, recycle once more avoids the waste of water resource.
Wherein, conveying mechanism is including installing the second water pump 16 at acid mist scrubbing tower 2 top, the input of second water pump 16 passes through connecting pipe 17 and is connected with two fin heat exchanger 18's output, the output of second water pump 16 passes through connecting pipe 17 and is connected with a plurality of shower nozzles 20, with fin heat exchanger 18 inside hot water input in the shower nozzle 20, shower nozzle 20 sprays hot water and sprays the acid mist that gets into acid mist scrubbing tower 2 inside, remove dust to the acid mist and handle, avoid the dust in the acid mist to be stained with on fin heat exchanger 18 and the packing layer 19, increase packing layer 19's life, simultaneously can also prevent that the precooling dust in the acid mist from being stained with on the inside wall of acid mist scrubbing tower 2.
In the invention, the high-temperature acid mist generated by the acid washing treatment of a metal through an acid washing tank is firstly sprayed by a spray nozzle 20 to remove dust particles in the acid mist, then is subjected to temperature reduction treatment on the high-temperature acid mist through a fin heat exchanger 18, and is sequentially subjected to continuous adsorption treatment, dust removal treatment and neutralization treatment through a plurality of packing layers 19, toxic substances in the acid mist are repeatedly treated for a plurality of times, finally, the treated air is cooled through the fin heat exchanger 18 to be in accordance with the emission standard, and can be discharged into the atmosphere, in the process of being discharged into the atmosphere, the discharged gas is detected through a detection device 14 to judge whether the discharged gas meets the emission standard, in addition, the waste water generated by the acid mist treatment is continuously used after neutralization treatment, temperature reduction treatment and precipitation, the acid mist waste gas treatment system for metallurgy can meet the emission standard, and the discharged air temperature is lower, can not cause the influence to the environment, the waste water that produces simultaneously can also recycle, is favorable to reducing the cost of enterprise, and the water economy resource has fine practicality.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. An acid mist waste gas treatment system for metallurgy is characterized by comprising an acid mist washing tower (2), the input end of the acid mist washing tower (2) is connected with an air inlet pipeline (1), the output end of the acid mist washing tower (2) is sequentially connected with a demister (13), a detection device (14) and a chimney (15) through an exhaust pipeline (11), two finned heat exchangers (18) and a plurality of packing layers (19) are arranged in the acid mist washing tower (2), the bottom of the acid mist washing tower (2) close to the output end is sequentially connected with a neutralization device (4), a sedimentation tank (6) and a clean water tank (7) through a drain pipe (3), the clean water tank (7) is connected with the input ends of the two fin heat exchangers (18) through a water pumping mechanism, the output end of the fin heat exchanger (18) is connected with a plurality of spray heads (20) through a conveying mechanism.
2. A metallurgical acid mist exhaust gas treatment system according to claim 1, characterized in that a plurality of said packing layers (19) are located between two finned heat exchangers (18).
3. A metallurgical acid mist exhaust gas treatment system according to claim 1, characterized in that the bottom of the acid mist scrubber tower (2) is inclined.
4. A metallurgical acid mist exhaust gas treatment system according to claim 1, characterized in that an exhaust fan (12) is arranged between the demister (13) and the acid mist washing tower (2).
5. A metallurgical acid mist exhaust gas treatment system according to claim 1, characterized in that a cooling device (5) is arranged between the neutralization device (4) and the sedimentation tank (6).
6. A metallurgical acid mist exhaust gas treatment system according to claim 1, characterized in that the pumping mechanism comprises a first water pump (9), the input end of the first water pump (9) is connected with the clean water tank (7) through a pumping pipe (8), and the output end of the first water pump (9) is connected with the input ends of the two fin heat exchangers (18) through a conveying pipe (10).
7. A metallurgical acid mist exhaust gas treatment system according to claim 1, characterized in that the conveying mechanism comprises a second water pump (16) arranged at the top of the acid mist washing tower (2), the input end of the second water pump (16) is connected with the output ends of the two fin heat exchangers (18) through a connecting pipe (17), and the output end of the second water pump (16) is connected with the spray nozzles (20) through the connecting pipe (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010089723.9A CN111265999A (en) | 2020-02-13 | 2020-02-13 | Acid mist waste gas treatment system for metallurgy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010089723.9A CN111265999A (en) | 2020-02-13 | 2020-02-13 | Acid mist waste gas treatment system for metallurgy |
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| Publication Number | Publication Date |
|---|---|
| CN111265999A true CN111265999A (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010089723.9A Pending CN111265999A (en) | 2020-02-13 | 2020-02-13 | Acid mist waste gas treatment system for metallurgy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113398702A (en) * | 2021-06-25 | 2021-09-17 | 内蒙古瑞濠新材料科技有限公司 | Alloy preparation electric stove flue gas purification processing system |
| CN115040952A (en) * | 2022-08-16 | 2022-09-13 | 河北鸿科碳素有限公司 | Carbon anode tail gas treatment equipment |
| CN115228228A (en) * | 2022-06-24 | 2022-10-25 | 江水 | Circulating industrial waste gas treatment process |
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| CN105233622A (en) * | 2015-11-03 | 2016-01-13 | 济南圣泉集团股份有限公司 | VOC (volatile organic compound) waste gas treatment device and method for pharmaceutical and chemical industry |
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| CN206587570U (en) * | 2017-03-21 | 2017-10-27 | 上海兰宝环保科技有限公司 | It is suitable for the exhaust treatment system of high humility organic exhaust gas |
| CN208406587U (en) * | 2018-04-30 | 2019-01-22 | 宿迁久巨环保科技有限公司 | A kind of chemical industry acid mist purifying tower |
| CN209271174U (en) * | 2018-12-03 | 2019-08-20 | 石狮市洪顺印染机械制造有限公司 | A kind of horizontal washing tower in industrial waste gas treatment device |
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2020
- 2020-02-13 CN CN202010089723.9A patent/CN111265999A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20100074817A1 (en) * | 2006-12-27 | 2010-03-25 | Babcock-Hitachi Kabushiki Kaisha | Method and apparatus for treating discharge gas |
| CN102059049A (en) * | 2010-12-02 | 2011-05-18 | 中冶南方工程技术有限公司 | Method for purifying acid mist and nitrogen oxides in mixed acid washing unit |
| CN105233622A (en) * | 2015-11-03 | 2016-01-13 | 济南圣泉集团股份有限公司 | VOC (volatile organic compound) waste gas treatment device and method for pharmaceutical and chemical industry |
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| CN206587570U (en) * | 2017-03-21 | 2017-10-27 | 上海兰宝环保科技有限公司 | It is suitable for the exhaust treatment system of high humility organic exhaust gas |
| CN208406587U (en) * | 2018-04-30 | 2019-01-22 | 宿迁久巨环保科技有限公司 | A kind of chemical industry acid mist purifying tower |
| CN209271174U (en) * | 2018-12-03 | 2019-08-20 | 石狮市洪顺印染机械制造有限公司 | A kind of horizontal washing tower in industrial waste gas treatment device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113398702A (en) * | 2021-06-25 | 2021-09-17 | 内蒙古瑞濠新材料科技有限公司 | Alloy preparation electric stove flue gas purification processing system |
| CN115228228A (en) * | 2022-06-24 | 2022-10-25 | 江水 | Circulating industrial waste gas treatment process |
| CN115040952A (en) * | 2022-08-16 | 2022-09-13 | 河北鸿科碳素有限公司 | Carbon anode tail gas treatment equipment |
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Application publication date: 20200612 |