CN203253340U - Tail gas treating device for synthetic method chlorine dioxide preparation system - Google Patents
Tail gas treating device for synthetic method chlorine dioxide preparation system Download PDFInfo
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- CN203253340U CN203253340U CN 201320228942 CN201320228942U CN203253340U CN 203253340 U CN203253340 U CN 203253340U CN 201320228942 CN201320228942 CN 201320228942 CN 201320228942 U CN201320228942 U CN 201320228942U CN 203253340 U CN203253340 U CN 203253340U
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- chlorine dioxide
- tower
- hypo
- scrubbing tower
- dioxide scrubbing
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Abstract
The utility model discloses a tail gas treating device for a synthetic method chlorine dioxide preparation system. The device mainly comprises a sea wave tower and a chlorine dioxide washing tower. A liquid distributor is arranged at the upper part of each of the sea wave tower and the chlorine dioxide washing tower, a liquid storage tank and a material inlet are arranged at the lower part of each of the sea wave tower and the chlorine dioxide washing tower, and filter serving as a gas-liquid mixed absorption region is filled in the middle of each of the sea wave tower and the chlorine dioxide washing tower. A gas outlet is formed at the top of the sea wave tower and is connected with the material inlet at the lower part of the chlorine dioxide washing tower through a pipeline. A gas outlet is formed at the top of the chlorine dioxide washing tower and is connected with a draught fan through a pipeline. The liquid distributor of the sea wave tower is connected with a sodium hydroxide solution pipeline. The liquid distributor of the chlorine dioxide washing tower is connected with a hydrogen dioxide solution pipeline and the sodium hydroxide solution pipeline at the same time. The sea wave tower and the chlorine dioxide washing tower both adopt a countercurrent absorption manner; therefore, chlorine dioxide gas in tail gas can be effectively removed and the problems of environment pollution and loss of chlorine dioxide resource in the prior art can be solved.
Description
Technical field
The utility model relates to exhaust gas processing device, specifically a kind of exhaust gas processing device of synthesis chlorine dioxide preparation system in a kind of chemical products production.
Background technology
Chlorine dioxide is a kind of strong oxidizer, and stable chlorine dioxide has been classified as efficient, the safe disinfection agent of A1 level by the World Health Organization (WHO), also is good papermaking bleaching agent.From 1830s, begin to carry out suitability for industrialized production, in North America and Europe more than 1000 chlorine dioxide production factory arranged at present.
The preparation of synthesis chlorine dioxide comprises three main synthesis units, i.e. NaClO
3Synthesis unit, HCl synthesis unit and ClO
2Synthesis unit.ClO
2Synthesis unit is to generate sodium chloride, chlorine dioxide, chlorine G﹠W with chlorate and hydrochloric acid reaction, and wherein hydrochloric acid is not only as reducing agent but also as the acid medium of reaction, reaction equation is:
NaClO
3+2HCl→ClO
2+1/2Cl
2+H
2O+NaCl
The mist that chlorate and hydrochloric acid reaction produce enters chlorine dioxide absorption tower under the pumped vacuum systems effect, with from the cat head spray and under 7 ℃ frozen water contact, make 8～10g/L aqueous solution of chlorine dioxide.Qualified discharge was to atmosphere after the tail gas of whole preparation system will be processed by exhaust gas processing device.
Above-mentioned exhaust gas processing device is one of nucleus equipment of chlorine dioxide preparation system.Owing to still contain chlorine and the chlorine dioxide of high level in the tail gas that the synthesis process of preparing chlorine dioxide produces, if directly will inevitably cause the waste of environmental pollution and resource discharged to atmosphere, therefore want really to realize tail gas " zero pollutes " discharging, before tail gas is discharged to atmosphere, must possess ClO
2And Cl
2Treating apparatus.Traditional method is to add chilled water at the tail gas absorber top, to obtain " spatter property " tail gas of low chlorine dioxide and chlorine content, but contain the very little technique of chlorine component in the applicable tail gas of this method with the chilled water absorption tail gas, inapplicablely prepare in the chlorine dioxide technique in synthesis.Make tail gas energy qualified discharge by transformation and optimization to chlorine dioxide and chlorine exhaust gas treating method and device, become common recognition.
The utility model content
Technical problem to be solved in the utility model provides a kind of exhaust gas processing device of synthesis chlorine dioxide preparation system, to overcome the prior art environmental protection that exists and the problem that causes the chlorine dioxide resources loss.
The utility model solves the problems of the technologies described above with following technical scheme:
The exhaust gas processing device of the utility model synthesis chlorine dioxide preparation system, it mainly is comprised of hypo tower and chlorine dioxide scrubbing tower, the top of hypo tower and chlorine dioxide scrubbing tower is respectively equipped with liquid distributor, the bottom is respectively equipped with reservoir and feeding mouth, and the filler as the gas-liquid mixed uptake zone is equipped with respectively at the middle part; Gas vent is arranged at the top of hypo tower, and connects by the road the feeding mouth of chlorine dioxide scrubbing tower bottom; Gas vent is arranged at the top of chlorine dioxide scrubbing tower, and is connected with blower fan by the road, and clean gas can directly be discharged in the atmosphere, keeps simultaneously negative pressure in two towers, is conducive to tail gas and rises in two towers more smoothly; The liquid distributor of hypo tower connects the sodium hydroxide solution pipeline, and the liquid distributor of chlorine dioxide scrubbing tower connects hydrogenperoxide steam generator pipeline and sodium hydroxide solution pipeline simultaneously.
The exhaust gas processing device of the utility model synthesis chlorine dioxide preparation system, the reservoir of described hypo tower connects hypo tower pump, hypo tower delivery side of pump pipeline divides two-way output, access sodium hydroxide solution pipeline behind one tunnel connection hypo tower cooler device, and another road is outwards output directly.
The exhaust gas processing device of the utility model synthesis chlorine dioxide preparation system, the reservoir of described chlorine dioxide scrubbing tower connects chlorine dioxide scrubbing tower pump, chlorine dioxide scrubbing tower delivery side of pump pipeline divides two-way output, access sodium hydroxide solution pipeline behind one tunnel connection chlorine dioxide scrubbing tower cooler, another road is outwards output directly.
Hypo tower of the present utility model and chlorine dioxide scrubbing tower all adopt the mode of counter-current absorption, adopt NaOH to spray at the hypo top of tower, make the chlorine in the tail gas react with it the formation liquor natrii hypochloritis for other workshop sections or take-away, through also containing a small amount of chlorine dioxide in the tail gas after the absorption of hypo tower, after entering the chlorine dioxide scrubbing tower, process with NaOH and hydrogen peroxide spray simultaneously, remove chlorine dioxide contained in the tail gas.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, the exhaust gas processing device of the utility model synthesis chlorine dioxide preparation system mainly is comprised of hypo tower 21 and chlorine dioxide scrubbing tower 22.Be provided with liquid distributor 19 on the top of hypo tower 21, the bottom is provided with reservoir 16 and feeding mouth 1, and the filler 2 as the gas-liquid mixed uptake zone is equipped with at the middle part; Be provided with liquid distributor 20 on the top of chlorine dioxide scrubbing tower 22, the bottom is provided with reservoir 11 and feeding mouth 5, and the filler 6 as the gas-liquid mixed uptake zone is equipped with at the middle part; Gas vent 4 is arranged at the top of hypo tower 21, and gas vent 4 connects the feeding mouth 5 of chlorine dioxide scrubbing tower 22 bottoms by the road, and cascade towers is communicated with; Gas vent 8 is arranged at the top of chlorine dioxide scrubbing tower 22, and gas vent 8 is connected with blower fan 9 by the road, and blower fan 9 can directly be discharged in the atmosphere clean gas, keeps simultaneously negative pressure in two towers, is conducive to tail gas and rises in two towers more smoothly; The liquid distributor 19 of hypo tower 21 connects sodium hydroxide solution pipeline 3, the reservoir 16 of hypo tower 21 connects hypo tower pump 15, the outlet conduit of hypo tower pump 15 divides two-way output, one the tunnel connects hypo tower cooler device 17 rear access sodium hydroxide solution pipelines 3 recycles, and another road is outwards output take-away directly; The reservoir 11 of chlorine dioxide scrubbing tower 22 connects chlorine dioxide scrubbing tower pump 12, the outlet conduit of chlorine dioxide scrubbing tower pump 12 divides two-way output, one the tunnel connects chlorine dioxide scrubbing tower cooler 18 rear access sodium hydroxide solution pipelines 10 recycles, and another road is outwards output take-away directly.
It is circulating absorption solution that described hypo tower adopts NaOH, and the chlorine in the tail gas is absorbed, and forming the liquor natrii hypochloritis can use by oneself or take out.
It is circulating absorption solution that described chlorine dioxide scrubbing tower adopts NaOH and hydrogen peroxide simultaneously, removes the chlorine dioxide in the tail gas.
During work, the tail gas that each produces in stage enters filler 2 zones from the feeding mouth 1 of hypo tower 21, and the liquid of sodium hydroxide solution pipeline 3 is lower from the spray of hypo cat head end through liquid distributor 19, and mist and sodium hydroxide solution be in filler 2 regional counter current contacting, wherein Cl
2Generate clorox with the NaOH reaction and be absorbed, through ClO remaining behind the hypo tower
2Mist enters filler 6 zones, ClO through the gas vent 4 of hypo top of tower from the feeding mouth 5 of chlorine dioxide scrubbing tower
2Gas with from hydrogenperoxide steam generator pipeline 7 out liquid and from sodium hydroxide solution pipeline 10 liquid out in filler 6 regional counter current contacting.Cl
2The hypo bath that forms with the NaOH reaction enters reservoir 16 storages, clean gas is then extracted out by blower fan 9 from the gas vent 8 at chlorine dioxide scrubbing tower top and is entered atmosphere, hypo bath is sent other workshop section's reuse or take-aways back to through exporting 14, chlorine dioxide scrubbing tower treatment fluid enters reservoir 11 and stores, and sends other workshop section's reuse or take-aways back to through exporting 13.In system's running, by hypo tower pump 15 and chlorine dioxide scrubbing tower pump 12 treatment fluid of the accumulator tank 11 of the hypo bath of the accumulator tank 16 of hypo tower and chlorine dioxide scrubbing tower is looped back separately cat head respectively, spill fully downwards through liquid distributor, more effectively contact makes final tail gas qualified discharge to atmosphere.
Claims (3)
1. the exhaust gas processing device of synthesis chlorine dioxide preparation system, it is characterized in that, it mainly is comprised of hypo tower and chlorine dioxide scrubbing tower, the top of hypo tower and chlorine dioxide scrubbing tower is respectively equipped with liquid distributor, the bottom is respectively equipped with reservoir and feeding mouth, and the filler as the gas-liquid mixed uptake zone is equipped with respectively at the middle part; Gas vent is arranged at the top of hypo tower, and connects by the road the feeding mouth of chlorine dioxide scrubbing tower bottom; Gas vent is arranged at the top of chlorine dioxide scrubbing tower, and is connected with blower fan by the road, and clean gas can directly be discharged in the atmosphere, keeps simultaneously negative pressure in two towers, is conducive to tail gas and rises in two towers more smoothly; The liquid distributor of hypo tower connects the sodium hydroxide solution pipeline, and the liquid distributor of chlorine dioxide scrubbing tower connects hydrogenperoxide steam generator pipeline and sodium hydroxide solution pipeline simultaneously.
2. the exhaust gas processing device of described synthesis chlorine dioxide preparation system according to claim 1, it is characterized in that: the reservoir of hypo tower connects hypo tower pump, hypo tower delivery side of pump pipeline divides two-way output, access sodium hydroxide solution pipeline behind one tunnel connection hypo tower cooler device, another road is outwards output directly.
3. the exhaust gas processing device of described synthesis chlorine dioxide preparation system according to claim 1, it is characterized in that: the reservoir of chlorine dioxide scrubbing tower connects chlorine dioxide scrubbing tower pump, chlorine dioxide scrubbing tower delivery side of pump pipeline divides two-way output, access sodium hydroxide solution pipeline behind one tunnel connection chlorine dioxide scrubbing tower cooler, another road is outwards output directly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320228942 CN203253340U (en) | 2013-04-28 | 2013-04-28 | Tail gas treating device for synthetic method chlorine dioxide preparation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320228942 CN203253340U (en) | 2013-04-28 | 2013-04-28 | Tail gas treating device for synthetic method chlorine dioxide preparation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203253340U true CN203253340U (en) | 2013-10-30 |
Family
ID=49465950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320228942 Expired - Lifetime CN203253340U (en) | 2013-04-28 | 2013-04-28 | Tail gas treating device for synthetic method chlorine dioxide preparation system |
Country Status (1)
| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105985820A (en) * | 2015-02-16 | 2016-10-05 | 刘文发 | Tail gas purifying agent |
| CN106219491A (en) * | 2016-07-27 | 2016-12-14 | 广西博世科环保科技股份有限公司 | The synthetic method chlorine dioxide preparing process recycled based on heat energy and side-product |
| CN107511029A (en) * | 2017-09-15 | 2017-12-26 | 广西博世科环保科技股份有限公司 | A kind of apparatus and method of chlorine dioxide tail gas absorption |
| CN111389205A (en) * | 2019-01-03 | 2020-07-10 | 安徽雪龙纤维科技股份有限公司 | ClO (ClO)2Method for treating tail gas |
-
2013
- 2013-04-28 CN CN 201320228942 patent/CN203253340U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105985820A (en) * | 2015-02-16 | 2016-10-05 | 刘文发 | Tail gas purifying agent |
| CN105985820B (en) * | 2015-02-16 | 2017-08-04 | 刘文发 | A kind of purification agent for treating waste gas |
| CN106219491A (en) * | 2016-07-27 | 2016-12-14 | 广西博世科环保科技股份有限公司 | The synthetic method chlorine dioxide preparing process recycled based on heat energy and side-product |
| CN106219491B (en) * | 2016-07-27 | 2018-02-27 | 广西博世科环保科技股份有限公司 | The synthesis chlorine dioxide preparing process recycled based on heat energy and byproduct |
| CN107511029A (en) * | 2017-09-15 | 2017-12-26 | 广西博世科环保科技股份有限公司 | A kind of apparatus and method of chlorine dioxide tail gas absorption |
| CN111389205A (en) * | 2019-01-03 | 2020-07-10 | 安徽雪龙纤维科技股份有限公司 | ClO (ClO)2Method for treating tail gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |
|
| CX01 | Expiry of patent term |