CN102335543B - Device and method for recovering exhaust in bromine packaging - Google Patents
Device and method for recovering exhaust in bromine packaging Download PDFInfo
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- CN102335543B CN102335543B CN 201110247655 CN201110247655A CN102335543B CN 102335543 B CN102335543 B CN 102335543B CN 201110247655 CN201110247655 CN 201110247655 CN 201110247655 A CN201110247655 A CN 201110247655A CN 102335543 B CN102335543 B CN 102335543B
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- absorption
- tail gas
- tower
- mist eliminator
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Abstract
The invention discloses a device and a method for recovering tail gas in bromine packaging. The tail gas with bromine volatilized in a packaging process enters a mist eliminator through an exhaust collection hood and a blower; the bromine is absorbed by absorption liquid; the absorption liquid enters an absorption tower; air and the unabsorbed bromine enter a blowing-off tower; the bromine in brine water is blown into the air; the bromine-contained air enters a conveying pipeline; a sulfite solution absorbs the bromine in the bromine-contained air; the bromine-contained air then enters the absorption tower; the incompletely-absorbed bromine is sufficiently absorbed in the absorption tower once more; the absorption liquid flows out; the absorbed tail gas is absorbed by the blower to enter the mist eliminator for being subjected to mist-eliminating; and then the absorbed tail gas enters the blowing-off tower for being subjected to cyclic bromine-blowing. The device disclosed by the invention has a simple structure and is convenient to operate; bromine steam volatilized in air in the packaging process can be more completely recovered; the problems of evaporating, emitting, dripping and leaking in a packaging line are completely solved; the waste of bromine resources is reduced; the environment pollution is reduced; the device and the method disclosed by the invention are beneficial to environmental protection; the health and the safety for human are ensured; and the economic benefit for enterprises is increased.
Description
Technical field
The present invention relates to the bromine preparation field, relate in particular to a kind of in the bromine packaging process retracting device and the recovery method of tail gas.
Background technology
Bromine packing is last procedure of bromine processed, and generally bromine industry processed directly installs to the product bromine in the pottery bottle of 30kg/ bottle and stores as ready.There is the high concentration of enterprises of minority output to be stored in the enamel pot, and then divides and to install in the pottery bottle or directly be filled on the enamel pot haulage vehicle.Because bromine is a kind of volatile liquid, no matter take any manner of packing packing or can, the pipeline expose portion all contains bromine vapor and evaporate in the air, not only causes the waste of bromine, and surrounding environment is caused severe contamination.This gas is sucked by the people, can be to the calcination of human body respiration organ, and serious consequently people suffocates, if elegant in the middle of flowers, plants and trees, can be to its quick calcination, very therefore withered dying must administer it, to cut the waste and to protect environment.
In traditional technological operation, the bromine vapor of bromine volatilization all adopts in the bromine porch and adds an air blast in the packing, adds exhaust duct with blower export, high altitude discharge.Though this device is protected the operator, but still can not solve the wasting of resources and environmental pollution.
Summary of the invention
The technical problem to be solved in the present invention provides and a kind ofly reduces the bromine wasting of resources, is beneficial to environmental protection, guarantees bromine packing device for recovering tail gas and recovery method that human body is healthy and safe.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of bromine packing device for recovering tail gas, comprise the exhaust collection cover, air blast, mist eliminator, stripping tower, the absorption tower, exhaust collection cover top links to each other with the air inlet of air blast by pipeline, the bottom on absorption tower links to each other with the air inlet of air blast by pipeline, the outlet of air blast communicates with the bottom of mist eliminator by pipeline, the mist eliminator top arranges absorption liquid spray pipeline, the bottom of mist eliminator arranges the absorption liquid outlet, the absorption liquid outlet communicates with the bottom on absorption tower by pipeline, the gas vent on mist eliminator top communicates with the bottom of stripping tower by pipeline, the bittern import is offered on the top of stripping tower, the bittern import connects the bittern feed tube, the gas vent at stripping tower top communicates with the top on absorption tower by transfer pipeline, connects SO on the transfer pipeline
2Air inlet pipe and water inlet pipe, the stripping tower bottom arranges the bittern liquid outlet, and the absorption liquid liquid outlet communicates with the absorption liquid storage tank by pipeline.
Bromine packing device for recovering tail gas of the present invention, the inner filler of filling of wherein said mist eliminator.
Bromine packing device for recovering tail gas of the present invention, wherein said filler is Φ 50 cascade rings, described filler occupies 2/3 of mist eliminator volume.
Bromine packing device for recovering tail gas of the present invention is micro-vacuum state in the wherein said absorption tower, and pressure is 270mmHg.
The present invention also provides a kind of bromine packing method for recovering tail gas, the bromine tail gas that volatilizees in the packaging process enters in the mist eliminator through exhaust collection cover, air blast, spray absorption liquid in mist eliminator, bromine is absorbed by liquid absorption, and the absorption liquid behind the absorption bromine flows in the absorption tower, air enters stripping tower, brominated bittern is descended by stripping tower's top spray, and reverse contact of air that enters with the stripping tower bottom blows to the bromine in the bittern and go in the air, brominated air enters transfer pipeline, SO
2Enter transfer pipeline simultaneously with water and form sulfurous acid solution, brominated airborne bromine is absorbed, enter in the absorption tower then, absorbing incomplete bromine fully absorbs in the absorption tower again, absorption liquid flows out from the absorption liquid liquid outlet, tail gas after the absorption is siphoned away by air blast, enters mist eliminator, and then enters stripping tower circulation and blow bromine.
Bromine packing method for recovering tail gas of the present invention, wherein said absorption liquid adopts acid solution, and concentration is 1.14-1.2g/L.
Bromine packing method for recovering tail gas of the present invention, wherein said acid solution is dilution heat of sulfuric acid, hydrobromic acid solution or sulfurous acid solution or their mixed solution.
Bromine packing method for recovering tail gas of the present invention, the injection flow of wherein said mist eliminator top absorption liquid is 5-6m
3/ H.
Bromine packing method for recovering tail gas of the present invention, the flow that wherein said brominated bittern enters stripping tower is 1000-1200m
3/ H.
Bromine packing device for recovering tail gas of the present invention and recovery method, the bromine tail gas that volatilizees in the packaging process enters in the mist eliminator through exhaust collection cover, air blast, spray absorption liquid in mist eliminator, bromine tail gas is absorbed by liquid absorption, and the absorption liquid behind the absorption bromine flows in the absorption tower.The present invention is simple in structure; easy to operate; reclaimed more completely and evaporate into airborne bromine vapor in the packaging process; solved the evaporating, emitting, dripping or leaking of liquid or gas on the baling line fully; reduce the waste of bromine resource, reduced environmental pollution, be beneficial to environmental protection; guarantee health safety, increased the business economic benefit.
Description of drawings
Fig. 1 is the structural representation of bromine packing device for recovering tail gas of the present invention.
The specific embodiment
As shown in Figure 1, bromine packing device for recovering tail gas of the present invention, comprise exhaust collection cover 1, air blast 2, mist eliminator 3, stripping tower 4, absorption tower 5, exhaust collection cover 1 top links to each other by the air inlet of pipeline with air blast 2, the bottom on absorption tower 5 links to each other by the air inlet of pipeline with air blast 2, owing to the suction of air blast 2, the tower internal pressure is micro-vacuum state in the absorption tower 5, and pressure is 270mmHg.The outlet of air blast 2 communicates by the bottom of pipeline with mist eliminator 3, the mist eliminator 3 inner fillers 32 of filling, and filler occupies 2/3 of mist eliminator 3 volumes, and filler is Φ 50 cascade rings.Mist eliminator 3 tops arrange absorption liquid spray pipeline 33, the bottom of mist eliminator 3 arranges absorption liquid outlet 31, absorption liquid outlet 31 communicates by the bottom of pipeline with absorption tower 5, the gas vent 34 on mist eliminator 3 tops communicates by the bottom of pipeline with stripping tower 4, bittern import 41 is offered on the top of stripping tower 4, bittern import 41 connects bittern feed tube 42, and the gas vent 43 at stripping tower 4 tops communicates by the top of transfer pipeline 44 with absorption tower 5, connects SO on the transfer pipeline 44
2Air inlet pipe 45 and water inlet pipe 46, stripping tower 5 bottoms arrange bittern liquid outlet 47, and 5 bottoms, absorption tower arrange absorption liquid liquid outlet 51, and absorption liquid liquid outlet 51 communicates with absorption liquid storage tank 52 by pipeline.
Bromine packing method for recovering tail gas of the present invention, bromine Packaging Bottle 8 communicates with br storage tank 9 by packing pipeline 10, exhaust collection cover 1 is installed in the top of bromine Packaging Bottle 8 and packing pipeline 10, the bromine tail gas that volatilizees in the packaging process is through exhaust collection cover 1, air blast 2 enters in the mist eliminator 3, the absorption liquid that is sprayed by the top absorbs, absorption liquid behind the absorption bromine flows in the absorption tower 5, air enters stripping tower 4, brominated bittern after the oxidation is descended by stripping tower's 4 top sprays, the reverse contact of air that enters with stripping tower 4 bottoms, molecular bromine in the bittern blown in the air go, brominated air enters transfer pipeline 44, SO from the gas vent 43 at stripping tower 4 tops
2Enter transfer pipeline 44 simultaneously with water and form sulfurous acid solution, the brominated airborne bromine that comes is blown over by stripping tower 4 to be absorbed, enter then in the absorption tower 5, absorbing incomplete bromine fully absorbs in absorption tower 5 again, absorption liquid flows out in the absorption liquid storage tank 52 from absorption liquid liquid outlet 51, pumps into destilling tower with pump when a certain amount of to steam bromine.Tail gas after the absorption is siphoned away by air blast 2, enters mist eliminator 3, and then enters stripping tower 4 and blow bromine.
Air in the absorption tower 5 enters air blast 2, and the air that bloats enters mist eliminator 3, enters stripping tower 4 then, enters absorption tower 5 from stripping tower 4 tops, enters air blast 2 again, forms closed-cycle system.
Absorption liquid adopts acid solution, and as dilution heat of sulfuric acid, hydrobromic acid solution or sulfurous acid solution or their mixed solution, concentration is 1.14-1.2g/L.
Mist eliminator top absorption liquid injection flow is 5-6m
3The flow that/H, brominated bittern enter stripping tower is 1000-1200m
3/ H.The feeding amount of water is 1-1.5m
3/ h, SO
2The feeding amount is 1600-1800L/h.
Bromine of the present invention packing device for recovering tail gas has utilized bromine processed system originally, so construction cost is low, and is easy to operate,, increased the business economic benefit greatly.
Above-described embodiment is described preferred embodiment of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (9)
1. a bromine is packed device for recovering tail gas, it is characterized in that: comprise the exhaust collection cover, air blast, mist eliminator, stripping tower, the absorption tower, exhaust collection cover top links to each other with the air inlet of air blast by pipeline, the bottom on absorption tower links to each other with the air inlet of air blast by pipeline, the outlet of air blast communicates with the bottom of mist eliminator by pipeline, the mist eliminator top arranges absorption liquid spray pipeline, the bottom of mist eliminator arranges the absorption liquid outlet, the absorption liquid outlet communicates with the bottom on absorption tower by pipeline, the gas vent on mist eliminator top communicates with the bottom of stripping tower by pipeline, the bittern import is offered on the top of stripping tower, the bittern import connects the bittern feed tube, the gas vent at stripping tower top communicates with the top on absorption tower by transfer pipeline, connects SO on the transfer pipeline
2Air inlet pipe and water inlet pipe, the stripping tower bottom arranges the bittern liquid outlet, and the bottom, absorption tower arranges the absorption liquid liquid outlet, and the absorption liquid liquid outlet communicates with the absorption liquid storage tank by pipeline.
2. bromine packing device for recovering tail gas according to claim 1 is characterized in that: the inner filler of filling of described mist eliminator.
3. bromine according to claim 2 is packed device for recovering tail gas, and it is characterized in that: described filler is Φ 25 glass rings, and described filler occupies 2/3 of mist eliminator volume.
4. bromine according to claim 3 is packed device for recovering tail gas, and it is characterized in that: be micro-vacuum state in the described absorption tower, pressure is 270mmHg.
5. adopt the bromine packing method for recovering tail gas of each described retracting device of claim 1-4, it is characterized in that: the bromine tail gas that volatilizees in the packaging process enters in the mist eliminator through exhaust collection cover, air blast, in mist eliminator, spray absorption liquid, bromine is absorbed by liquid absorption, absorption liquid behind the absorption bromine flows in the absorption tower, air and unabsorbed bromine enter stripping tower, brominated bittern is descended by stripping tower's top spray, the reverse contact of air that enters with the stripping tower bottom, bromine in the bittern blown in the air go, brominated air enters transfer pipeline, SO
2Enter transfer pipeline simultaneously with water and form sulfurous acid solution, brominated airborne bromine is absorbed, enter in the absorption tower then, absorbing incomplete bromine fully absorbs in the absorption tower again, absorption liquid flows out from the absorption liquid liquid outlet, tail gas after the absorption is siphoned away by air blast, enters mist eliminator, and then enters stripping tower circulation and blow bromine.
6. bromine according to claim 5 is packed method for recovering tail gas, it is characterized in that: described absorption liquid adopts acid solution, and concentration is 1.14-1.2g/L.
7. bromine according to claim 6 is packed method for recovering tail gas, and it is characterized in that: described acid solution is dilution heat of sulfuric acid, hydrobromic acid solution or sulfurous acid solution or their mixed solution.
8. bromine according to claim 7 is packed method for recovering tail gas, and it is characterized in that: the injection flow of described mist eliminator top absorption liquid is 5-6m
3/ h.
9. according to each described bromine packing method for recovering tail gas of claim 6-8, it is characterized in that: the flow that described brominated bittern enters stripping tower is 1000-1200m
3/ h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110247655 CN102335543B (en) | 2011-08-26 | 2011-08-26 | Device and method for recovering exhaust in bromine packaging |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110247655 CN102335543B (en) | 2011-08-26 | 2011-08-26 | Device and method for recovering exhaust in bromine packaging |
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| Publication Number | Publication Date |
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| CN102335543A CN102335543A (en) | 2012-02-01 |
| CN102335543B true CN102335543B (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110247655 Active CN102335543B (en) | 2011-08-26 | 2011-08-26 | Device and method for recovering exhaust in bromine packaging |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105175287B (en) * | 2015-09-17 | 2017-10-31 | 杭州海虹精细化工有限公司 | Peroxide passivation produces ADC foaming agent pilot-plants |
| CN109592643B (en) * | 2019-01-15 | 2020-09-08 | 北京神州瑞霖环境技术研究院有限公司 | Multi-stage counter-flow blowing method, multi-stage counter-flow blowing device, and use thereof |
| CN113620250B (en) * | 2020-05-08 | 2023-05-23 | 青岛海湾精细化工有限公司 | Bromine-containing waste gas recovery method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100500265C (en) * | 2006-02-17 | 2009-06-17 | 中北大学 | Purification technology and equipment of waste gas containing high concentration nitrogen oxide |
| CN100503428C (en) * | 2007-03-28 | 2009-06-24 | 莱州诚源盐化有限公司 | Technique for secondary extracting bromine from waste liquid by extracting bromine once |
| CN101913564B (en) * | 2010-07-30 | 2013-01-09 | 天津长芦海晶集团有限公司 | Method for preparing bromine from brine |
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