CN108310913A - A kind of processing unit of polyaluminium chloride production tail gas - Google Patents
A kind of processing unit of polyaluminium chloride production tail gas Download PDFInfo
- Publication number
- CN108310913A CN108310913A CN201710034071.7A CN201710034071A CN108310913A CN 108310913 A CN108310913 A CN 108310913A CN 201710034071 A CN201710034071 A CN 201710034071A CN 108310913 A CN108310913 A CN 108310913A
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- CN
- China
- Prior art keywords
- polyaluminium chloride
- spray column
- water tank
- connect
- spray
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- B01D53/14—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 by absorption
- B01D53/1406—Multiple stage absorption
-
- 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
- B01D53/14—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 by absorption
- B01D53/1456—Removing acid components
-
- 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
- B01D53/14—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 by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to the processing units that a kind of polyaluminium chloride produces tail gas, it is connected to the first polyaluminium chloride reaction tank and the second polyaluminium chloride reaction tank, including the first spray column, the second spray column, the first water tank and the second water tank, first polyaluminium chloride reaction tank generates high temperature hydrochloric acid vapour during the reaction, and the second polyaluminium chloride reaction tank includes that tap water provides device；First polyaluminium chloride reaction tank connects the side of the first spray column, and the first water tank is connect with the lower end of the first spray column, and the second water tank is connect with the spray system of the upper end of the first spray column, and the upper end of the first spray column is connect with the side of the second spray column；The spray system of the upper end of second spray column is connect with the second polyaluminium chloride reaction tank, and the lower end of the second spray column is connect with the second water tank, and the upper end of the second spray column is connect by pipeline with a multistage packed tower.The equipment of the processing unit of the polyaluminium chloride production tail gas is simple, can effectively reduce energy consumption, reduce environmental pollution.
Description
Technical field
The present invention relates to the processing units that a kind of polyaluminium chloride produces tail gas, belong to chemical field.
Background technology
The production technology of polyaluminium chloride：In anti-corrosion reaction tank, certain density hydrochloric acid is heated to 100 DEG C or so, so
Bauxite or other calcium containing compounds are added afterwards, then polymerize at a certain temperature.
Due to hydrochloric acid highly volatile at high temperature, meanwhile, under high temperature, water can also be vaporizated into steam.Therefore, in polyaluminium chloride
Production process in, will produce a large amount of hydrochloric acid vapour, if direct emission, can cause seriously to pollute.
Therefore tail gas must be handled, common processing method is that tail gas is carried out condensation process, by filler
It is discharged after carrying out absorption processing on absorption tower.
The shortcomings that this method：
1. needing the cooling equipment of large area, while needing mating cooling tower.
2. energy consumption is big, waste is serious, and generated high temperature hydrochloric acid vapour is generated by steam heating or chemical heat
, it in order to handle tail gas, is cooled with water, this partial heat energy is wasted.
It is therefore desirable to design a kind of processing unit of polyaluminium chloride production tail gas, to overcome the above problem.
Invention content
It is an object of the invention to overcome the defect of the prior art, provide that a kind of equipment is simple, can reduce energy consumption, reduce
The processing unit of the polyaluminium chloride production tail gas of environmental pollution.
The invention is realized in this way：
The present invention provides a kind of processing unit of polyaluminium chloride production tail gas, is connected to the first polyaluminium chloride reaction tank and second and gathers
Aluminium reaction pond, including the first spray column, the second spray column, the first water tank and the second water tank, first polyaluminium chloride
Reaction tank generates high temperature hydrochloric acid vapour during the reaction, and the second polyaluminium chloride reaction tank includes that tap water provides device；
The first polyaluminium chloride reaction tank connects the side of first spray column, and first water tank is sprayed with described first
The lower end of tower connects, and second water tank is connect with the spray system of the upper end of first spray column, first spray column
Upper end connect with the side of second spray column；
The spray system of the upper end of second spray column is connect with the second polyaluminium chloride reaction tank, second spray column
Lower end connect with second water tank, the upper end of second spray column is connect by pipeline with a multistage packed tower.
Further, first water tank connect first polyaluminium chloride by pipeline with second water tank and reacts
Pond.
Further, first water tank connect second polyaluminium chloride by pipeline with second water tank and reacts
Pond.
Further, the spray system of first spray column and second spray column upper end includes multiple injections
Head.
The invention has the advantages that：
The processing unit of the polyaluminium chloride production tail gas includes the first spray column, the second spray column, the first water tank and second
Water tank.The high temperature hydrochloric acid vapour that the present invention is generated the first polyaluminium chloride reaction tank by above structure during the reaction
First time spray-absorption cooling, the spray liquid of obtained lower temperature are carried out with normal-temperature water, which can be directly used for polychlorostyrene
Change the production of aluminium, the tail gas after second of spray-absorption, temperature is relatively low, while content of hydrochloric acid very little, this tail gas is passed through
It, can qualified discharge after multistage packed tower absorbs.The equipment of the processing unit of the polyaluminium chloride production tail gas is simple, can effectively drop
Low energy consumption reduces environmental pollution.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram for the processing unit that polyaluminium chloride provided in an embodiment of the present invention produces tail gas.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained without making creative work it is all its
Its embodiment, shall fall within the protection scope of the present invention.
Such as Fig. 1, the embodiment of the present invention provides a kind of processing unit of polyaluminium chloride production tail gas, it is polychloride to be connected to first
Reactive aluminum pond 1 and the second polyaluminium chloride reaction tank 2, including the first spray column 3, the second spray column 4, the first water tank 5 and second
Water tank 6, the first polyaluminium chloride reaction tank 1 generate high temperature hydrochloric acid vapour during the reaction, and second polyaluminium chloride is anti-
It includes that tap water provides device to answer pond 2.
Such as Fig. 1, the first polyaluminium chloride reaction tank 1 connects（It is to be connected by pipeline）First spray column 3
Side, first water tank 5 are connect with the lower end of first spray column 3, second water tank 6 and first spray column 3
Upper end spray system connection, the upper end of first spray column 3 is connect with the side of second spray column 4.
Such as Fig. 1, the spray system of the upper end of second spray column 4 is connect with the second polyaluminium chloride reaction tank 2, institute
The lower end for stating the second spray column 4 is connect with second water tank 6, and the upper end of second spray column 4 is multistage by pipeline and one
Packed tower 7 connects, and can further absorb the second spray column 4 and not absorb thorough tail gas, at 7 absorption of multistage packed tower
After reason, final on-condensible gas is emitted into air, will not cause environmental pollution.In the preferred embodiment, first spray column 3
Spray system with 4 upper end of the second spray column includes multiple injector heads, can be sprayed downwardly toward multiple directions.
Further, it is anti-with second water tank 6 to connect first polyaluminium chloride by pipeline for first water tank 5
Answer pond 1.First water tank 5 connect the second polyaluminium chloride reaction tank 2 with second water tank 6 by pipeline.Because
First water tank 5 absorbing liquid last with second water tank 6 is water-soluble with certain temperature and certain density hydrochloric acid
Liquid, which can be directly added into the first polyaluminium chloride reaction tank 1 or the second polyaluminium chloride reaction tank 2, for producing
Polyaluminium chloride so that material is recycled.
Specific technological process is：
The high temperature hydrochloric acid vapour that first polyaluminium chloride reaction tank 1 generates during the reaction in the first spray column 3 with from the
The shower water contact of two water tanks 6 absorbs, and absorbs cold（Level-one spray liquid）But liquid enters the first water tank 5.
Unabsorbed tail gas enters the second spray column 4 in first spray column 3, and in the second polyaluminium chloride reaction tank 2
Tap water continue absorbing, cooling, absorbing liquid（Two level spray liquid）Into the second water tank 6.
After multistage packed tower 7 fully absorbs, on-condensible gas is discharged into greatly unabsorbed tail gas in second spray column 4
Gas.
The processing unit of polyaluminium chloride production tail gas include the first spray column 3, the second spray column 4, the first water tank 5 with
And second water tank 6.The high temperature that the present invention is generated the first polyaluminium chloride reaction tank 1 by above structure during the reaction
Hydrochloric acid vapour carries out first time spray-absorption cooling with normal-temperature water, and the spray liquid of obtained lower temperature, which can be direct
For the production of polyaluminium chloride, the tail gas after second of spray-absorption, temperature is relatively low, while content of hydrochloric acid very little, by this
Tail gas, can qualified discharge after the absorption of multistage packed tower 7.
The processing unit of the polyaluminium chloride production tail gas is had the following advantages by above structure：
1. first spray column 3 and second spray column 4 form two-stage series connection spray system, cools down to tail gas and absorbs,
Absorbing, cooling is more complete, and equipment is simple, it is only necessary to the energy consumption of very little.
2. spray liquid of the lower two level spray-absorption liquid of temperature in use as level-one spray column, reduces making for spray liquid
With.
3. the higher level-one spray-absorption liquid of temperature is directly used in production polyaluminium chloride, reduce polyaluminium chloride production process
In heating energy consumption.
4. unabsorbed a small amount of tail gas can handle tail gas, qualified discharge subtracts completely after the absorption of multistage packed tower 7
Few environmental pollution.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (4)
1. a kind of processing unit of polyaluminium chloride production tail gas, is connected to the first polyaluminium chloride reaction tank and the second polyaluminium chloride is anti-
Ying Chi, which is characterized in that polychloride including the first spray column, the second spray column, the first water tank and the second water tank, described first
Reactive aluminum pond generates high temperature hydrochloric acid vapour during the reaction, and the second polyaluminium chloride reaction tank includes that tap water provides dress
It sets；
The first polyaluminium chloride reaction tank connects the side of first spray column, and first water tank is sprayed with described first
The lower end of tower connects, and second water tank is connect with the spray system of the upper end of first spray column, first spray column
Upper end connect with the side of second spray column；
The spray system of the upper end of second spray column is connect with the second polyaluminium chloride reaction tank, second spray column
Lower end connect with second water tank, the upper end of second spray column is connect by pipeline with a multistage packed tower.
2. a kind of processing unit of polyaluminium chloride production tail gas as described in claim 1, it is characterised in that：First water tank
The first polyaluminium chloride reaction tank is connect by pipeline with second water tank.
3. a kind of processing unit of polyaluminium chloride production tail gas as claimed in claim 1 or 2, it is characterised in that：Described first
Water tank connect the second polyaluminium chloride reaction tank with second water tank by pipeline.
4. a kind of processing unit of polyaluminium chloride production tail gas as described in claim 1, it is characterised in that：First spray
The spray system of tower and second spray column upper end includes multiple injector heads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710034071.7A CN108310913A (en) | 2017-01-18 | 2017-01-18 | A kind of processing unit of polyaluminium chloride production tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710034071.7A CN108310913A (en) | 2017-01-18 | 2017-01-18 | A kind of processing unit of polyaluminium chloride production tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108310913A true CN108310913A (en) | 2018-07-24 |
Family
ID=62891670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710034071.7A Pending CN108310913A (en) | 2017-01-18 | 2017-01-18 | A kind of processing unit of polyaluminium chloride production tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108310913A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110015678A (en) * | 2019-05-20 | 2019-07-16 | 河南爱尔福克化学股份有限公司 | A kind of production technology of Novel thick condensation polymerization aluminium chloride |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201949783U (en) * | 2010-12-30 | 2011-08-31 | 荆州市江汉精细化工有限公司 | Chlorine hydride tail gas absorber |
| CN202893159U (en) * | 2012-11-05 | 2013-04-24 | 淄博联技甜味剂有限公司 | Tail gas recovery device in sucralose production |
| CN203737073U (en) * | 2013-11-26 | 2014-07-30 | 重庆蓝洁广顺净水材料有限公司 | Polyaluminium chloride production residue tail gas treatment system |
| CN104474849A (en) * | 2014-12-04 | 2015-04-01 | 中国钢研科技集团有限公司 | Acid regeneration acid gas absorption and exhaust emission reduction system and utilization method thereof |
| DE102016101393A1 (en) * | 2015-01-28 | 2016-07-28 | Shin-Etsu Chemical Co., Ltd. | Process and apparatus for producing hydrochloric acid |
-
2017
- 2017-01-18 CN CN201710034071.7A patent/CN108310913A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201949783U (en) * | 2010-12-30 | 2011-08-31 | 荆州市江汉精细化工有限公司 | Chlorine hydride tail gas absorber |
| CN202893159U (en) * | 2012-11-05 | 2013-04-24 | 淄博联技甜味剂有限公司 | Tail gas recovery device in sucralose production |
| CN203737073U (en) * | 2013-11-26 | 2014-07-30 | 重庆蓝洁广顺净水材料有限公司 | Polyaluminium chloride production residue tail gas treatment system |
| CN104474849A (en) * | 2014-12-04 | 2015-04-01 | 中国钢研科技集团有限公司 | Acid regeneration acid gas absorption and exhaust emission reduction system and utilization method thereof |
| DE102016101393A1 (en) * | 2015-01-28 | 2016-07-28 | Shin-Etsu Chemical Co., Ltd. | Process and apparatus for producing hydrochloric acid |
Non-Patent Citations (1)
| Title |
|---|
| 康亚琼，张群峰，杨伟娜: "净水剂行业氯化氢废气污染治理技术报告", 《CHINA MANAGEMENT MAGAZINE》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110015678A (en) * | 2019-05-20 | 2019-07-16 | 河南爱尔福克化学股份有限公司 | A kind of production technology of Novel thick condensation polymerization aluminium chloride |
| CN110015678B (en) * | 2019-05-20 | 2021-07-06 | 河南爱尔福克化学股份有限公司 | Production process of concentrated polyaluminum chloride |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20180724 |