CN105413438A - Acid-system tail gas spraying clear-water-recycling and alkaline-water-draining washing tower and automatic control washing technology thereof - Google Patents
Acid-system tail gas spraying clear-water-recycling and alkaline-water-draining washing tower and automatic control washing technology thereof Download PDFInfo
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- CN105413438A CN105413438A CN201511030983.4A CN201511030983A CN105413438A CN 105413438 A CN105413438 A CN 105413438A CN 201511030983 A CN201511030983 A CN 201511030983A CN 105413438 A CN105413438 A CN 105413438A
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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
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
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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
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
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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
- B01D53/96—Regeneration, reactivation or recycling of reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/204—Inorganic halogen compounds
- B01D2257/2045—Hydrochloric acid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/025—Other waste gases from metallurgy plants
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Abstract
The invention discloses an acid-system tail gas spraying clear-water-recycling and alkaline-water-draining washing tower and an automatic control washing technology thereof. The washing tower comprises an alkali liquor packing region, a desalted water packing region, a liquor storage vent tank and an alkali liquor storage region, wherein the liquor storage vent tank and the alkali liquor storage region are located between the two washing packing regions. The bottom of the alkali liquor storage region is connected with an inlet pipe of an alkali liquor spraying circulating pump, and an outlet pipe of the alkali liquor spraying circulating pump is connected with a pipe mixer to be connected to an alkali liquor nozzle at the upper portion of the alkali liquor packing region. The liquor storage vent tank is composed of a middle vent cylinder and a liquor storage tank, the lateral side of the liquor storage tank is connected with a desalted water spraying circulating pump through a pipe to be connected to a desalted water nozzle at the upper portion of the desalted water packing region. A tail gas inlet and a tail gas outlet are formed in the lateral side of the bottom and the top of the washing tower respectively. According to the technology, a substance-separating circulating washing circulating path is formed by an upper spraying circulating system and a lower spraying circulating system, and liquid-phase substance-separating washing of exhaust gas is achieved in one washing tower. By means of the washing tower and the technology, washing liquor is not mixed, and recycling of desalted water and draining of alkaline water are guaranteed.
Description
Technical field
The present invention relates to steel rolling acid pickle regenerative system technical field, be specifically related to the spray water purification reuse of a kind of acid system tail gas and buck discharge scrubbing tower and automatically control washing process.
Background technology
The acid pickle that cold rolling mill pickled steel strip produces, has extremely strong corrosivity.If do not processed, serious pollution will be caused to environment, simultaneously due to the discharge that hydrochloric acid is a large amount of, also result in the raising of pickling cost.Process major part now for pickle liquor adopts spray roasting technique, and vent gas washing system is one of kernel subsystems in spray roasting technique.
In spray roasting acid regeneration technique, spent acid generation chemical reaction, the free HCl of generation, by after one-level scrubbing tower (absorption tower) absorption, needed again repeatedly to wash just can meet qualified discharge requirement before being disposed to air.In addition, usually also in the end one-level scrubbing tower arranges two-layer filler, carry out desalted water respectively and containing NaOH, Na
2sO
3deng the spray washing of alkaline solution.
In the middle of actual engineering design, the setting of the two-layer filler of afterbody scrubbing tower in the past, then carry out desalted water respectively and contain NaOH, Na
2sO
3deng the spray washing of alkaline solution, the liquid after washing together collects in the liquid storage groove of bottom, cannot separate, and this solution being mixed with alkaline matter cannot be back in acid purification system, can only be disposed to waste water station, causes waste.And acid system tail gas spray water purification automatically reclaiming discharge washing system can realize bottom to discharge separately containing aqueous slkali, and top desalted water can be back in acid purification system and again utilizes, and achieves and recycles.Therefore be necessary to design a kind of acid system tail gas spray water purification automatically reclaiming discharge washing system, to overcome the problems referred to above.
Summary of the invention
The technical problem to be solved in the present invention is, for prior art above shortcomings, provides a kind of acid system tail gas spray water purification reuse and buck discharge scrubbing tower and automatically control washing process, makes desalted water and alkali lye separately, meet its sustainable utilization.
The present invention for solving the problems of the technologies described above adopted technical scheme is:
The spray water purification reuse of acid system tail gas and buck discharge scrubbing tower, comprise alkali lye packing area, the two-layer washing packing area that desalted water packing area is formed, and liquid storage air channel in the middle of two-layer washing packing area and alkali lye liquid storage district, the bottom in described alkali lye liquid storage district is connected with alkali lye Sprayer Circulation pump intake piping road, the alkali lye nozzle on top, alkali lye packing area is connected to again after alkali lye Sprayer Circulation delivery side of pump pipeline is connected with pipe-line mixer, described liquid storage air channel is made up of middle air funnel and liquid storage groove, the desalted water nozzle on top, desalted water packing area is connected to again after the side of liquid storage groove is connected with desalted water Sprayer Circulation pump by pipeline, alkali lye Sprayer Circulation pump and desalted water Sprayer Circulation pump are respectively used to as spray washing liquid provides circulation power, the bottom side of scrubbing tower is provided with inlet exhaust gas, and the top of scrubbing tower is provided with offgas outlet.
By such scheme; described alkali lye liquid storage district is provided with alkali lye lamination difference liquid level gauge; liquid storage air channel is provided with desalted water pressure reduction liquid level gauge, and alkali lye lamination difference liquid level gauge and desalted water pressure reduction liquid level gauge are used for respectively to the chain Control protection of level sensing in alkali lye liquid storage district and liquid storage air channel.
By such scheme, described alkali lye packing area also arranges a pH and detects meter, and pH detects meter and is connected on the pipeline of alkali lye Sprayer Circulation pump, for by detecting the pH of circulation acid solution, determines to control the automatic-discharging of circulation fluid.
By such scheme, described liquid storage air channel is also provided with electrical conductivity on-line detecting system, electrical conductivity on-line detecting system comprises electrical conductivity and detects meter, desalted water drain valve and desalted water make-up valve, electrical conductivity detects meter and is connected with desalted water drain valve and desalted water make-up valve simultaneously, and desalted water drain valve and desalted water make-up valve are all connected to the liquid storage groove of liquid storage air channel.
By such scheme, described two-layer washing packing area expands to Multi-layer sprinkling packing area according to actual conditions.
By such scheme, in the middle of Ge Ceng spraying filler district, liquid storage air channel is set.
The invention also discloses the automatic control washing process of a kind of above-mentioned acid system tail gas spray water purification reuse and buck discharge scrubbing tower, comprise the steps:
1) flue gas enters alkali lye packing area (scrubbing tower lower area) from inlet exhaust gas, and the cleaning solution through being extracted in alkali lye liquid storage district by alkali lye Sprayer Circulation pump is supplied to alkali lye nozzle and sprays alkali lye packing area and complete bottom spray washing work;
2) flue gas subsequently flow through liquid storage air channel in the middle of air funnel enter desalted water packing area (scrubbing tower upper area), be supplied to desalted water nozzle and spray desalted water packing area through being extracted the cleaning solution in liquid storage air channel liquid storage groove by desalted water Sprayer Circulation pump and complete top spray washing work;
3) flue gas after washing finally discharges scrubbing tower by offgas outlet.
By such scheme; liquid level in alkali lye liquid storage district and liquid storage air channel detects chain by alkali lye lamination difference liquid level gauge and desalted water pressure reduction liquid level gauge respectively, realizes the chain Control protection to the chain control of scrubbing tower fluid infusion and alkali lye Sprayer Circulation pump and desalted water Sprayer Circulation pump.
By such scheme, step 1) middle and lower part spray washing time, alkali lye Sprayer Circulation delivery side of pump pipeline arranges pipe-line mixer, in pipe-line mixer, adds NaOH and Na
2sO
3spray into alkali lye packing area after making it fully mixing, guarantee the absorption to HCl in tail gas.
By such scheme, step 2) middle and upper part spray washing time, detect meter by the electrical conductivity of electrical conductivity on-line detecting system and on-line monitoring is carried out to the desalted water in liquid storage air channel, if electrical conductivity rises to a certain degree, desalted water in chain control desalted water drain valve discharge liquid storage air channel is to low liquid level, close desalted water drain valve again and open desalted water make-up valve and supplement the paramount liquid level of desalted water, realize Automatic Control.
Operation principle of the present invention: in the middle part of scrubbing tower, be provided with the liquid storage air channel of top cover in the middle of upper and lower two-layer filler, again by upper and lower two cover Sprayer Circulation systems, form the circulation path of sub-prime circulation cleaning, achieve and in same set of scrubbing tower, the liquid phase sub-prime of flue gas is washed.
Beneficial effect of the present invention:
1, flue gas is realized to the layering sub-prime washing of desalted water and alkali lye in scrubbing tower, do not cause the cleaning solution in scrubbing tower to mix, guarantee the reuse of desalted water, avoid arranging multiple scrubbing tower simultaneously;
2, NaOH and Na is added by pipe-line mixer
2sO
3spray into alkali lye packing area after making it fully mixing, guarantee the assimilation effect to HCl in tail gas;
3, electrical conductivity on-line detecting system can realize using to greatest extent desalted water and full automatic fluid infusion emission control, save desalted water consumption greatly and decrease tail liquid emissions amount, the desalted water of independent discharge to be back in acid purification system for regenerated acid absorbing liquid, achieves and recycles.
Accompanying drawing explanation
Fig. 1 is the structural representation of acid system tail gas of the present invention spray water purification reuse and buck discharge scrubbing tower;
In figure: 1. alkali lye packing area, 2. alkali lye Sprayer Circulation pump, 3. alkali lye nozzle, 4. desalted water packing area, 5. desalted water Sprayer Circulation pump, 6. desalted water nozzle, 7. liquid storage air channel, 8. alkali lye liquid storage district, 9. inlet exhaust gas, 10. offgas outlet, 11. alkali lye lamination difference liquid level gauges, 12. desalted water pressure reduction liquid level gauges, 13. desalted water make-up valve, 14. desalted water drain valves, 15. electrical conductivity detect meter, 16. pipe-line mixers, 17-pH detects meter.
Detailed description of the invention
Below in conjunction with drawings and Examples, technical solution of the present invention is described in detail.
With reference to shown in Fig. 1, acid system tail gas spray water purification reuse of the present invention and buck discharge scrubbing tower, comprise alkali lye packing area 1, the two-layer washing packing area that desalted water packing area 4 is formed, and liquid storage air channel 7 in the middle of two-layer washing packing area and alkali lye liquid storage district 8, the bottom in alkali lye liquid storage district 8 is connected with the entrance pipe of alkali lye Sprayer Circulation pump 2, the alkali lye nozzle 3 on top, alkali lye packing area 1 is connected to again after the export pipeline of alkali lye Sprayer Circulation pump 2 is connected with pipe-line mixer 16, liquid storage air channel 7 is made up of middle air funnel and liquid storage groove, the desalted water nozzle 6 on top, desalted water packing area 4 is connected to again after the side of liquid storage groove is connected with desalted water Sprayer Circulation pump 5 by pipeline, alkali lye Sprayer Circulation pump 2 and desalted water Sprayer Circulation pump 5 are respectively used to as spray washing liquid provides circulation power, the bottom side of scrubbing tower is provided with inlet exhaust gas 9, and the top of scrubbing tower is provided with offgas outlet 10.
Alkali lye liquid storage district 8 is provided with alkali lye lamination difference liquid level gauge 11; liquid storage air channel 7 is provided with desalted water pressure reduction liquid level gauge 12, and alkali lye lamination difference liquid level gauge 11 and desalted water pressure reduction liquid level gauge 12 are for respectively to the chain Control protection of level sensing in alkali lye liquid storage district 8 and liquid storage air channel 7.
Alkali lye packing area 8 also arranges pH detection meter 17, a pH detection meter 17 and is connected on the pipeline of alkali lye Sprayer Circulation pump 5, for by detecting the pH of circulation acid solution, determines to control the automatic-discharging of circulation fluid.
Liquid storage air channel 7 is also provided with electrical conductivity on-line detecting system, electrical conductivity on-line detecting system comprises electrical conductivity and detects meter 15, desalted water drain valve 14 and desalted water make-up valve 13, electrical conductivity detects meter 15 and is connected with desalted water drain valve 14 and desalted water make-up valve 13 simultaneously, and desalted water drain valve 14 and desalted water make-up valve 13 are all connected to the liquid storage groove of liquid storage air channel 7.
Two-layer washing packing area also can expand to Multi-layer sprinkling packing area according to actual conditions.
In the middle of Ge Ceng spraying filler district, liquid storage air channel 7 is set, the air-flow met between packing area passes through, simultaneously again by the requirement that the spray liquid of different packing area separates, make the spray liquid of heterogeneity, variable concentrations sub-prime spray in same scrubbing tower, do not mix again after spray and become possibility.
The automatic control washing process of acid system tail gas spray water purification reuse of the present invention and buck discharge scrubbing tower, comprises the steps:
1) flue gas enters alkali lye packing area 1 (scrubbing tower lower area) from inlet exhaust gas 9, sprays alkali lye packing area 1 complete bottom spray washing work through being supplied to alkali lye nozzle 3 by alkali lye Sprayer Circulation pump 2 cleaning solution extracted in alkali lye liquid storage district 8;
2) flue gas subsequently flows through the middle air funnel of liquid storage air channel 7 and enters desalted water packing area 4 (scrubbing tower upper area), sprays desalted water packing area 4 complete top spray washing work through being supplied to desalted water nozzle 6 by desalted water Sprayer Circulation pump 5 cleaning solution extracted in liquid storage air channel 7 liquid storage groove;
3) flue gas after washing finally discharges scrubbing tower by offgas outlet 10.
Spray washing liquid in alkali lye liquid storage district 8 and liquid storage air channel 7 can meet the circulated sprinkling feed flow of alkali lye packing area 1, desalted water packing area 4.Alkali lye Sprayer Circulation pump 2 and desalted water Sprayer Circulation pump 5 provide circulation power for spray washing liquid.
Liquid level in alkali lye liquid storage district 8 and liquid storage air channel 7 detects chain by alkali lye lamination difference liquid level gauge 11 and desalted water pressure reduction liquid level gauge 12 respectively respectively, meets the chain Control protection to the chain control of scrubber system fluid infusion and alkali lye Sprayer Circulation pump 2 and desalted water Sprayer Circulation pump 5.
During the spray washing of bottom, alkali lye Sprayer Circulation pump discharge pipeline arranges pipe-line mixer 16, in pipe-line mixer 16, adds NaOH and Na
2sO
3spray into alkali lye packing area 1 after making it fully mixing, guarantee the assimilation effect to HCl in tail gas.
During the spray washing of top, meter 15 is detected for carrying out on-line monitoring to the desalted water in liquid storage air channel 7 by electrical conductivity, if electrical conductivity rises to 1000us/cm, chain control desalted water drain valve 14 discharges the desalted water extremely low liquid level in liquid storage air channel 7, close desalted water drain valve 14 again and open desalted water make-up valve 13 and supplement the paramount liquid level of desalted water, realize Automatic Control.
Obviously, above-described embodiment is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, be still among protection scope of the present invention according to spirit institute's apparent change of extending out of the present invention or change.
Claims (10)
1. the spray water purification reuse of acid system tail gas and buck discharge scrubbing tower and automatically control washing process, it is characterized in that: comprise alkali lye packing area, the two-layer washing packing area that desalted water packing area is formed, and liquid storage air channel in the middle of two-layer washing packing area and alkali lye liquid storage district, the bottom in described alkali lye liquid storage district is connected with alkali lye Sprayer Circulation pump intake piping road, the alkali lye nozzle on top, alkali lye packing area is connected to again after alkali lye Sprayer Circulation delivery side of pump pipeline is connected with pipe-line mixer, described liquid storage air channel is made up of middle air funnel and liquid storage groove, the desalted water nozzle on top, desalted water packing area is connected to again after the side of liquid storage groove is connected with desalted water Sprayer Circulation pump by pipeline, alkali lye Sprayer Circulation pump and desalted water Sprayer Circulation pump are respectively used to as spray washing liquid provides circulation power, the bottom side of scrubbing tower is provided with inlet exhaust gas, and the top of scrubbing tower is provided with offgas outlet.
2. acid system tail gas spray water purification reuse according to claim 1 and buck discharge scrubbing tower; it is characterized in that: described alkali lye liquid storage district is provided with alkali lye lamination difference liquid level gauge; liquid storage air channel is provided with desalted water pressure reduction liquid level gauge, and alkali lye lamination difference liquid level gauge and desalted water pressure reduction liquid level gauge are used for respectively to the chain Control protection of level sensing in alkali lye liquid storage district and liquid storage air channel.
3. acid system tail gas spray water purification reuse according to claim 1 and buck discharge scrubbing tower, it is characterized in that: described alkali lye packing area also arranges a pH and detects meter, pH detects meter and is connected on the pipeline of alkali lye Sprayer Circulation pump, for by detecting the pH of circulation acid solution, determine to control the automatic-discharging of circulation fluid.
4. acid system tail gas spray water purification reuse according to claim 1 and buck discharge scrubbing tower, it is characterized in that: described liquid storage air channel is also provided with electrical conductivity on-line detecting system, electrical conductivity on-line detecting system comprises electrical conductivity and detects meter, desalted water drain valve and desalted water make-up valve, electrical conductivity detects meter and is connected with desalted water drain valve and desalted water make-up valve simultaneously, and desalted water drain valve and desalted water make-up valve are all connected to the liquid storage groove of liquid storage air channel.
5. acid system tail gas spray water purification reuse according to claim 1 and buck discharge scrubbing tower, is characterized in that: described two-layer washing packing area also can expand to Multi-layer sprinkling packing area according to actual conditions.
6. acid system tail gas spray water purification reuse according to claim 5 and buck discharge scrubbing tower, is characterized in that: arrange liquid storage air channel in the middle of Ge Ceng spraying filler district.
7. an automatic control washing process for one of any described acid system tail gas spray water purification reuse of the claims 1 ~ 6 and buck discharge scrubbing tower, is characterized in that: comprise the steps:
1) flue gas enters alkali lye packing area from inlet exhaust gas, and the cleaning solution through being extracted in alkali lye liquid storage district by alkali lye Sprayer Circulation pump is supplied to alkali lye nozzle and sprays alkali lye packing area and complete bottom spray washing work;
2) flue gas subsequently flow through liquid storage air channel in the middle of air funnel enter desalted water packing area, be supplied to desalted water nozzle and spray desalted water packing area through being extracted the cleaning solution in liquid storage air channel liquid storage groove by desalted water Sprayer Circulation pump and complete top spray washing work;
3) flue gas after washing finally discharges scrubbing tower by offgas outlet.
8. the automatic control washing process of acid system tail gas spray water purification reuse according to claim 7 and buck discharge scrubbing tower; it is characterized in that: when alkali lye liquid storage district be provided with alkali lye lamination difference liquid level gauge, liquid storage air channel be provided with desalted water pressure reduction liquid level gauge; liquid level in alkali lye liquid storage district and liquid storage air channel detects chain by alkali lye lamination difference liquid level gauge and desalted water pressure reduction liquid level gauge respectively, realizes the chain Control protection to the chain control of scrubbing tower fluid infusion and alkali lye Sprayer Circulation pump and desalted water Sprayer Circulation pump.
9. the automatic control washing process of acid system tail gas spray water purification reuse according to claim 7 and buck discharge scrubbing tower, it is characterized in that: step 1) middle and lower part spray washing time, alkali lye Sprayer Circulation delivery side of pump pipeline arranges pipe-line mixer, in pipe-line mixer, adds NaOH and Na
2sO
3spray into alkali lye packing area after making it fully mixing, guarantee the absorption to HCl in tail gas.
10. the automatic control washing process of acid system tail gas spray water purification reuse according to claim 7 and buck discharge scrubbing tower, it is characterized in that: when liquid storage air channel is provided with electrical conductivity on-line detecting system, step 2) middle and upper part spray washing time, detect meter by the electrical conductivity of electrical conductivity on-line detecting system and on-line monitoring is carried out to the desalted water in liquid storage air channel, if electrical conductivity rises to a certain degree, desalted water in chain control desalted water drain valve discharge liquid storage air channel is to low liquid level, close desalted water drain valve again and open desalted water make-up valve and supplement the paramount liquid level of desalted water, realize Automatic Control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511030983.4A CN105413438A (en) | 2015-12-31 | 2015-12-31 | Acid-system tail gas spraying clear-water-recycling and alkaline-water-draining washing tower and automatic control washing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511030983.4A CN105413438A (en) | 2015-12-31 | 2015-12-31 | Acid-system tail gas spraying clear-water-recycling and alkaline-water-draining washing tower and automatic control washing technology thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105413438A true CN105413438A (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511030983.4A Pending CN105413438A (en) | 2015-12-31 | 2015-12-31 | Acid-system tail gas spraying clear-water-recycling and alkaline-water-draining washing tower and automatic control washing technology thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105671573A (en) * | 2016-03-29 | 2016-06-15 | 中冶南方工程技术有限公司 | Tail gas eliminating system and method for acid pickling acid regenerating unit |
| CN106902628A (en) * | 2017-04-26 | 2017-06-30 | 江苏和顺环保有限公司 | Flue gas of refuse burning spray cleaning device |
| CN115888287A (en) * | 2022-11-17 | 2023-04-04 | 中国成达工程有限公司 | Hydrogen chloride and magnesium chloride dust tail gas treatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105671573A (en) * | 2016-03-29 | 2016-06-15 | 中冶南方工程技术有限公司 | Tail gas eliminating system and method for acid pickling acid regenerating unit |
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| CN106902628A (en) * | 2017-04-26 | 2017-06-30 | 江苏和顺环保有限公司 | Flue gas of refuse burning spray cleaning device |
| CN115888287A (en) * | 2022-11-17 | 2023-04-04 | 中国成达工程有限公司 | Hydrogen chloride and magnesium chloride dust tail gas treatment method |
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Application publication date: 20160323 |