CN202529863U - Device for producing anhydrous sodium sulfite from sulfuric acid tail gas washing liquid - Google Patents
Device for producing anhydrous sodium sulfite from sulfuric acid tail gas washing liquid Download PDFInfo
- Publication number
- CN202529863U CN202529863U CN201220184335XU CN201220184335U CN202529863U CN 202529863 U CN202529863 U CN 202529863U CN 201220184335X U CN201220184335X U CN 201220184335XU CN 201220184335 U CN201220184335 U CN 201220184335U CN 202529863 U CN202529863 U CN 202529863U
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- CN
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- Prior art keywords
- sulfuric acid
- tail gas
- acid tail
- sodium sulfite
- washing liquid
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Abstract
The utility model discloses a device for producing anhydrous sodium sulfite from a sulfuric acid tail gas washing liquid. The device comprises a reaction kettle, a washing tower, a neutralizing tank, an evaporator and a centrifugal machine which are sequentially connected, wherein an alkali bath is arranged in the washing tower. According to the device disclosed by the utility model, a novel anhydrous sodium sulfite product can be produced by using the sulfuric acid tail gas washing liquid; economic benefits of enterprises are increased; and the problem that the sulfuric acid tail gas washing liquid is difficult to dispose is solved.
Description
Technical field
The utility model relates to the Chemicals production field, particularly a kind of device that utilizes the sulfuric acid tail gas washings to produce sodium sulphite anhydrous 99.3.
Background technology
In the composite fertilizer manufacturing enterprise, the sulfuric acid tail gas washing is to utilize ammonia scrubbing at present, and the washing back generates ammonium sulphite, ammonium bisulfite.After in being recovered to hydrogen potassium nitration mixture system, production is affected greatly, so yield is little, ammonium sulphite, ammonium bisulfite amount progressively increase, and influence the normal operation of enterprise production.
The utility model content
The utility model provides a kind of ammonium sulphite that utilizes the sulfuric acid tail gas washing to produce, ammonium bisulfite to produce the device of SODIUM SULPHATE ANHYDROUS 99PCT product innovation in order to address the above problem.
To achieve these goals, the utility model adopts following technical scheme.
The sulfuric acid tail gas washings that utilizes of the utility model is produced the device of sodium sulphite anhydrous 99.3, comprises the reaction kettle, washing tower, neutralizing well, vaporizer and the whizzer that link to each other successively; Also be provided with the alkali groove in the said washing tower.`
During work, the sulfuric acid tail gas washings is squeezed into reaction kettle,, generate sulfur dioxide gas and ammonium sulfate with 98% sulfuric acid and the reaction of sulfuric acid tail gas washings; Sulfur dioxide gas gets into washing tower, and absorbs at the alkali trough counter-current with sodium carbonate solution, generates sodium sulfite anhy 96; Sodium sulfite anhy 96 gets into neutralizing well, generates S-WAT with the sodium hydroxide reaction; Sodium sulfite solution gets into vaporizer and carries out evaporation concentration; Magma after concentrating is put into whizzer and is dried, through drying machine dry the sodium sulphite anhydrous 99.3 product, the clear liquid recycle.
The beneficial effect of the utility model is, utilizes the sulfuric acid tail gas washings to produce the sodium sulphite anhydrous 99.3 product innovation, improves the business economic benefit, solves the sulfuric acid tail gas washings and is difficult to disposal concerns.
Description of drawings
Fig. 1 is the principle of work synoptic diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
The sulfuric acid tail gas washings that utilizes of the utility model is produced the device of sodium sulphite anhydrous 99.3, comprises the reaction kettle, washing tower, neutralizing well, vaporizer and the whizzer that link to each other successively; Also be provided with the alkali groove in the said washing tower.`
During work, the sulfuric acid tail gas washings is squeezed into reaction kettle,, generate sulfur dioxide gas and ammonium sulfate with 98% sulfuric acid and the reaction of sulfuric acid tail gas washings; Sulfur dioxide gas gets into washing tower, and absorbs at the alkali trough counter-current with sodium carbonate solution, generates sodium sulfite anhy 96; Sodium sulfite anhy 96 gets into neutralizing well, generates S-WAT with the sodium hydroxide reaction; Sodium sulfite solution gets into vaporizer and carries out evaporation concentration; Magma after concentrating is put into whizzer and is dried, through drying machine dry the sodium sulphite anhydrous 99.3 product, the clear liquid recycle.
Though the above-mentioned accompanying drawing that combines is described the embodiment of the utility model; But be not restriction to the utility model protection domain; One of ordinary skill in the art should be understood that; On the basis of the technical scheme of the utility model, those skilled in the art need not pay various modifications that creative work can make or distortion still in the protection domain of the utility model.
Claims (1)
1. a device that utilizes the sulfuric acid tail gas washings to produce sodium sulphite anhydrous 99.3 is characterized in that, comprises the reaction kettle, washing tower, neutralizing well, vaporizer and the whizzer that link to each other successively; Also be provided with the alkali groove in the said washing tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220184335XU CN202529863U (en) | 2012-04-27 | 2012-04-27 | Device for producing anhydrous sodium sulfite from sulfuric acid tail gas washing liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220184335XU CN202529863U (en) | 2012-04-27 | 2012-04-27 | Device for producing anhydrous sodium sulfite from sulfuric acid tail gas washing liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202529863U true CN202529863U (en) | 2012-11-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220184335XU Expired - Fee Related CN202529863U (en) | 2012-04-27 | 2012-04-27 | Device for producing anhydrous sodium sulfite from sulfuric acid tail gas washing liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202529863U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103570046A (en) * | 2013-11-14 | 2014-02-12 | 湖南恒光化工有限公司 | Process for preparing high-purity sodium sulfite through sulfuric acid production industrial exhaust |
| CN105399113A (en) * | 2015-12-03 | 2016-03-16 | 天津长芦汉沽盐场有限责任公司 | Method for preparing sodium sulfite solution |
-
2012
- 2012-04-27 CN CN201220184335XU patent/CN202529863U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103570046A (en) * | 2013-11-14 | 2014-02-12 | 湖南恒光化工有限公司 | Process for preparing high-purity sodium sulfite through sulfuric acid production industrial exhaust |
| CN103570046B (en) * | 2013-11-14 | 2015-07-01 | 湖南恒光化工有限公司 | Process for preparing high-purity sodium sulfite through sulfuric acid production industrial exhaust |
| CN105399113A (en) * | 2015-12-03 | 2016-03-16 | 天津长芦汉沽盐场有限责任公司 | Method for preparing sodium sulfite solution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20130427 |