CN202688290U - Two-stage alkaline washing tower for yellow phosphorus tail gas - Google Patents
Two-stage alkaline washing tower for yellow phosphorus tail gas Download PDFInfo
- Publication number
- CN202688290U CN202688290U CN 201220359541 CN201220359541U CN202688290U CN 202688290 U CN202688290 U CN 202688290U CN 201220359541 CN201220359541 CN 201220359541 CN 201220359541 U CN201220359541 U CN 201220359541U CN 202688290 U CN202688290 U CN 202688290U
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- Prior art keywords
- tail gas
- tower
- washing tower
- stage
- alkaline washing
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- Expired - Fee Related
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to a two-stage alkaline washing tower for yellow phosphorus tail gas, which is characterized by being provided with two-stage series-connected tower bodies, wherein each tower body is internally provided with an air inlet , an air outlet and an alkaline liquid nozzle; and the two tower bodies are provided with gas-water separators. The two-stage alkaline washing tower has the beneficial effects that tail gas is sprayed by using alkaline liquid, and the alkaline liquid and acidic materials in the tail gas are subjected to a neutral reaction to ensure that the whole tail gas is neutral, and thus, equipment in the sequent process is protected from being corroded. The sequent process is carried out reliably and smoothly.
Description
Technical field
The utility model relates to a kind of gas cleaning unit.
Background technology
In the phosphorus production process, one ton of yellow phosphorus of every production can by-product 2500-3000m
3The tail gas from electric furnace of (mark attitude), the CO content in the tail gas reaches 87%-92%, and other has total sulfur 0.8-8g/ m
3, total phosphorus 0.5-1.5g/ m
3, and the raw material dust etc., CO is rich in abundant calorific value, and its calorific value is 2500-2700KCa/ m
3It is good thermal source.
In order to utilize the calorific value of yellow phosphoric tail gas, it can be carried out burning after the scrubbing dust collection as inflammable gas, because the tail gas after the washing is phosphorous or the acidic substance of sulphur, so be acid (pH value is 5), if directly use, can corrode back segment equipment (such as blower fan, combustion equipment etc.).
Summary of the invention
The purpose of this utility model provides a kind of yellow phosphoric tail gas secondary caustic scrubber to remedy the deficiency of prior art.
The utility model for realizing the technical scheme that purpose adopts is: yellow phosphoric tail gas secondary caustic scrubber is characterized in that: be provided with the tower body of two-stage tandem, tower body all has inlet mouth, air outlet and alkali lye mouth spray; In two tower bodies steam separator is arranged.
Optimize, steam separator is the sheet-type device of tilting array.
Positively effect of the present utility model is: spray tail gas with alkali lye, the acidic substance in alkali lye and the tail gas produce neutralization reaction, make tail gas integral body be neutral, have protected the back segment processing apparatus not to be corroded.Guarantee that subsequent handling reliably carries out smoothly.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment:
Yellow phosphoric tail gas enters in the one-level tower body 2 from inlet mouth 1, the alkali lye (42% NaOH solution) of alkali lye mouth spray 3 ejections in it and the acidic substance in the gas carry out neutralization reaction, then yellow phosphoric tail gas 4 enters secondary tower body 5 from the air outlet, carries out reaction repeated in secondary tower body 5.
After in secondary tower body 5, having carried out neutralization reaction, passed through the washing and alkali cleaning after tail gas in water vapour is arranged, the existence of water vapour can affect thermo-efficiency, so water vapour will be separated, the method that we adopt is absorption method, the large object of specific surface area is set, makes water vapour be condensed into liquid water thereon, and that tail gas can escape into next procedure smoothly is stand-by.The water separator that present embodiment adopts be usefulness be the plate 6 of some sheets, tilting at regular intervals, become the structure of similar window shutter, water vapour condenses at plate 6, and gas is overflowed from the slit.
Claims (2)
1. yellow phosphoric tail gas secondary caustic scrubber, it is characterized in that: be provided with the tower body of two-stage tandem, tower body all has inlet mouth, air outlet and alkali lye mouth spray; In two tower bodies steam separator is arranged.
2. yellow phosphoric tail gas secondary caustic scrubber as claimed in claim 1, it is characterized in that: steam separator is the sheet-type device of tilting array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359541 CN202688290U (en) | 2012-07-24 | 2012-07-24 | Two-stage alkaline washing tower for yellow phosphorus tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359541 CN202688290U (en) | 2012-07-24 | 2012-07-24 | Two-stage alkaline washing tower for yellow phosphorus tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202688290U true CN202688290U (en) | 2013-01-23 |
Family
ID=47543937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220359541 Expired - Fee Related CN202688290U (en) | 2012-07-24 | 2012-07-24 | Two-stage alkaline washing tower for yellow phosphorus tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202688290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105132040A (en) * | 2015-08-24 | 2015-12-09 | 西安新环能源有限公司 | Yellow phosphorus tail gas purification method and system |
-
2012
- 2012-07-24 CN CN 201220359541 patent/CN202688290U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105132040A (en) * | 2015-08-24 | 2015-12-09 | 西安新环能源有限公司 | Yellow phosphorus tail gas purification method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20200724 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |