CN201543365U - Absorption tower with wire mesh demister - Google Patents
Absorption tower with wire mesh demister Download PDFInfo
- Publication number
- CN201543365U CN201543365U CN2009202284106U CN200920228410U CN201543365U CN 201543365 U CN201543365 U CN 201543365U CN 2009202284106 U CN2009202284106 U CN 2009202284106U CN 200920228410 U CN200920228410 U CN 200920228410U CN 201543365 U CN201543365 U CN 201543365U
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- CN
- China
- Prior art keywords
- wire mesh
- mesh demister
- tail gas
- absorption tower
- tower body
- 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.)
- Expired - Lifetime
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- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model relates to an absorption tower with a wire mesh demister, comprising a tower body. The upper part of the tower body is provided with a tail gas outlet and an acid inlet, and the lower part thereof is provided with a tail gas inlet and an acid outlet; the position of an end enclosure at the upper part of the tower body is provided with the wire mesh demister; and wire meshes of the mesh demister are made of polypropylene. The absorption tower with the wire mesh demister is additionally provided with the wire mesh demister made of the polypropylene inside the position of the end enclosure of the upper part of the tower body, can block tail gas containing hydrogen chloride from escaping to an alkali absorption tower and sodium hypochlorite mist being neutralized by alkali from being carried into atmosphere through the wire mesh demister during the gas-phase silicon production, thereby reducing the alkali consumption amount for production, guaranteeing the emission of tail gas meeting standards, and simultaneously improving the output of hydrochloric acid and the concentration of neutralized sodium hypochlorite.
Description
Technical field
The utility model relates to a kind of absorption tower, be specifically related to a kind of aerosil production that is used for, particularly when containing chlorine and hydrogen chloride tail gas and absorb, can improve assimilation effect, reduce NaOH consumption, improve the absorption tower that has wire mesh demister of salt acid yield.
Background technology
During aerosil is produced at present, the tail gas that contains hydrogen chloride and chlorine after synthetic, mainly three grade hydrochloric acid packed tower waters by interior dress Pall ring absorb step by step, at last by one-level alkali absorption tower, not absorbing first three grade hydrochloric acid completely with 20% dilute alkaline soln, tail gas neutralizes, generate clorox, last tail gas qualified discharge.Because tail gas is mobile step by step by negative pressure that water ring vacuum pump the is taken out drive tail gas of washing tower (for removing CO2) outlet in absorption process.So make in alkali outlet especially with preceding diluted acid absorption tower, the entrainment (containing hydrogen chloride and chlorine) that is produced by negative pressure of vacuum makes a large amount of tail gas that contains hydrogen chloride escape into the alkali absorption tower, increased the consumption of neutralization with alkali, also cause simultaneously alkali to absorb not exclusively, exhaust emissions acidity exceeds standard.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of absorption tower that has wire mesh demister, the tail gas that can reduce to contain hydrogen chloride by wire mesh demister escape in alkali absorption tower and the alkali and after the clorox mist be brought into atmosphere, thereby reduced the alkali consumption of producing and made the tail gas can qualified discharge.
The purpose of this utility model is achieved in that a kind of absorption tower that has wire mesh demister, comprises tower body, outlet of tower body top tail gas and sour import, and the bottom is provided with tail gas import and acid outlet, and the end socket place is provided with wire mesh demister on tower body top.The silk screen of wire mesh demister adopts polypropylene to make.
The absorption tower that has wire mesh demister that the utility model provides, by add a material in end socket place, tower body top is polyacrylic wire mesh demister, in gas phase silicon is produced in the process, by the net demister can tackle that the tail gas that contains hydrogen chloride escapes in alkali absorption tower and the alkali and after the clorox mist be brought into atmosphere, thereby reduced the alkali consumption of producing and guaranteed the tail gas qualified discharge, improved simultaneously hydrochloric acid output and in and the concentration of clorox.Do not mend alkali number concentration 20%, 0.28m before adding wire mesh demister
3/ h installs additional and mends alkali number behind the demister and be kept to 0.15m
3/ h, and the hydrochloric acid of carrying secretly in the tail gas is trapped, and reduced the absorption of NaOH to hydrochloric acid, improved the concentration of clorox, installs preceding 4% additional; Install back 8-10% additional, produce favorable economic benefit.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a wire mesh demister structural representation of the present utility model.
The specific embodiment
As depicted in figs. 1 and 2, the utility model comprises tower body 1, tower body 1 top tail gas outlet 2 and sour import 3, and the bottom is provided with tail gas import 4 and acid outlet 5, and the end socket place is provided with wire mesh demister 6 on tower body 1 top.The silk screen 7 of wire mesh demister 6 adopts polypropylene to make.
Operation principle of the present utility model is: in gas phase silicon is produced in the process, when absorbing to containing chlorine and hydrogen chloride tail gas, by being provided with wire mesh demister 6 at end socket place, tower body 1 top, the tail gas that utilizes silk screen 7 interception on the net demister 6 to contain hydrogen chloride escape in alkali absorption tower and the alkali and after the clorox mist be brought into atmosphere, thereby reduced the alkali consumption of producing and guaranteed the tail gas qualified discharge, improved simultaneously hydrochloric acid output and in and the concentration of clorox.
Claims (2)
1. absorption tower that has wire mesh demister, comprise tower body (1), tower body (1) top tail gas outlet (2) and sour import (3), the bottom is provided with tail gas import (4) and acid outlet (5), and it is characterized in that: the end socket place is provided with wire mesh demister (6) on tower body (1) top.
2. the absorption tower that has demister according to claim 1 is characterized in that: the silk screen (7) of wire mesh demister (6) adopts polypropylene to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202284106U CN201543365U (en) | 2009-09-26 | 2009-09-26 | Absorption tower with wire mesh demister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202284106U CN201543365U (en) | 2009-09-26 | 2009-09-26 | Absorption tower with wire mesh demister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201543365U true CN201543365U (en) | 2010-08-11 |
Family
ID=42598522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202284106U Expired - Lifetime CN201543365U (en) | 2009-09-26 | 2009-09-26 | Absorption tower with wire mesh demister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201543365U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284222A (en) * | 2011-06-17 | 2011-12-21 | 杭州中昊科技有限公司 | Dust-removal washing tower for treating fumed silica tail gas |
| CN102430320A (en) * | 2011-11-11 | 2012-05-02 | 凯迈(洛阳)机电有限公司 | Demisting device |
| CN110294461A (en) * | 2019-07-09 | 2019-10-01 | 浙江工程设计有限公司 | A kind of adjustable sulfuric acid dechlorination process and dechlorinator |
-
2009
- 2009-09-26 CN CN2009202284106U patent/CN201543365U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284222A (en) * | 2011-06-17 | 2011-12-21 | 杭州中昊科技有限公司 | Dust-removal washing tower for treating fumed silica tail gas |
| CN102430320A (en) * | 2011-11-11 | 2012-05-02 | 凯迈(洛阳)机电有限公司 | Demisting device |
| CN110294461A (en) * | 2019-07-09 | 2019-10-01 | 浙江工程设计有限公司 | A kind of adjustable sulfuric acid dechlorination process and dechlorinator |
| CN110294461B (en) * | 2019-07-09 | 2023-12-05 | 浙江工程设计有限公司 | Adjustable sulfuric acid dechlorination process and dechlorination tower |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |