CN204778864U - Sodium mercaptide crystallization conversion glauber's salt device - Google Patents
Sodium mercaptide crystallization conversion glauber's salt device Download PDFInfo
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- CN204778864U CN204778864U CN201520500993.9U CN201520500993U CN204778864U CN 204778864 U CN204778864 U CN 204778864U CN 201520500993 U CN201520500993 U CN 201520500993U CN 204778864 U CN204778864 U CN 204778864U
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- crystallization
- groove
- suction filtration
- sodium
- glauber
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Sodium mercaptide crystallization conversion glauber's salt device is mainly become by sodium sulphate solution circuit groove, suction filtration groove, clear solution groove, crystallization liquid circulatory pool, crystallization tower and humidification evaporator assembly, and the liquid outlet in sodium sulphate solution circuit groove links to each other with the suction filtration groove with the humidification evaporimeter respectively, and the export reconnection of humidification evaporimeter is to the sodium sulphate solution circuit groove in, and the liquid outlet in suction filtration groove passes through the clear solution groove and links to each other with the crystallization tower with crystallization liquid circulatory pool, and is continuous with the suction filtration groove bottom the crystallization tower. The utility model discloses a sodium methyl mercaptide process wastewater handles provides a sodium mercaptide crystallization conversion glauber's salt device, passes through densification, suction filtration and crystallization equipment at sodium sulphate solution wherein, converts the glauber's salt crystal into, has improved sodium methyl mercaptide process wastewater environmental protection treatment effeciency, has simple structure, crystallization efficiency height and convenient operation's advantage.
Description
Technical field
The utility model relates to sodium methyl mercaptide and produces Environmental-protecting treater technical field, is specifically related to a kind of sodium mercaptides crystallization conversion saltcake device.
Background technology
Sodium methyl mercaptide is a kind of important organic intermediate compound, can be used for production Multiple Pesticides as products such as methomyl, aldicarb etc. and fodder additives methionine(Met).Its production technique many employings Sodium sulfhydrate and methyl-sulfate (or methyl chloride) reaction, generate methyl mercaptan gas, then 20% sodium methyl mercaptide solution is become with absorbing by liquid caustic soda, stench, toxic pollutant be can inevitably produce in process of production, and the waste water of Sodium sulfhydrate and a small amount of volatile byproduct dimethyl sulfide contained.Waste water containing Sodium sulfhydrate generally uses sulfuric acid to carry out process and generates metabisulfite solution, in recent years, domestic many sodium methyl mercaptide manufacturing enterprises are not owing to noting the improvement of above pollutent or can not find suitable processing scheme, result in and the pollution of surrounding environment is finally stopped production or changed the line of production, have impact on the market supply of this product to a certain extent.The pollution problem of therefore administering in sodium methyl mercaptide production ensures that can this product normally be produced, the key of meeting the need of market.
Utility model content
The utility model provides a kind of sodium mercaptides crystallization conversion saltcake device, and the sodium methyl mercaptide existed to solve prior art is produced the waste liquid produced and not easily processed the problem causing environmental pollution.
The utility model solves the technical scheme that its technical problem adopts:
A kind of sodium mercaptides crystallization conversion saltcake device, form primarily of metabisulfite solution circulation groove, suction filtration tank, clear liquid groove, crystal solution circulatory pool, prilling tower and humidification vaporizer, the liquid exit of metabisulfite solution circulation groove is connected with suction filtration tank with humidification vaporizer respectively, the outlet of humidification vaporizer is connected in metabisulfite solution circulation groove, the liquid exit of suction filtration tank is connected with prilling tower with crystal solution circulatory pool by clear liquid groove, is connected bottom prilling tower with suction filtration tank.
The principle of work of the utility model device is, the metabisulfite solution that sodium methyl mercaptide production waste liquid obtains after vitriolization enters in metabisulfite solution circulation groove, in metabisulfite solution circulation groove, a solution part is through suction filtration, the sodium sulfate filter cake that suction filtration obtains is delivered in pneumatic dryer, filtrate is through clear liquid groove, crystal solution circulatory pool enters in prilling tower and carries out crystallization, form the solution containing saltcake crystal, solution containing saltcake crystal is again through suction filtration, the filter cake obtained is delivered in follow-up drier, filtrate continues crystallization by clear liquid groove and crystal solution circulatory pool again, in metabisulfite solution circulation groove, another part solution is delivered in humidification vaporizer and is carried out enrichment, solution after enrichment returns in metabisulfite solution circulation groove, to improve metabisulfite solution crystalline rate.
The utility model provides sodium mercaptides crystallization conversion saltcake device for the process of sodium methyl mercaptide process waste liquor, metabisulfite solution is by enrichment, suction filtration and crystallizer wherein, be converted to saltcake crystal, improve sodium methyl mercaptide process waste liquor environmental protection treatment efficiency, there is the advantage that structure is simple, crystalline rate is high and easy to operate.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the process flow diagram that the utility model sodium methyl mercaptide produces environment-friendly processing unit.
1 metabisulfite solution circulation groove, 2 suction filtration tanks, 3 clear liquid grooves, 4 crystal solution circulatory pools, 5 prilling towers, 6 humidification vaporizers in figure.
Embodiment
As shown in the figure, a kind of sodium mercaptides crystallization conversion saltcake device, form primarily of metabisulfite solution circulation groove 1, suction filtration tank 2, clear liquid groove 3, crystal solution circulatory pool 4, prilling tower 5 and humidification vaporizer 6, the liquid exit of metabisulfite solution circulation groove 1 is connected with suction filtration tank 2 with humidification vaporizer 6 respectively, the outlet of humidification vaporizer 6 is connected in metabisulfite solution circulation groove 1, the liquid exit of suction filtration tank 2 is connected with prilling tower 5 with crystal solution circulatory pool 4 by clear liquid groove 3, is connected bottom prilling tower 5 with suction filtration tank 2.
The principle of work of the utility model device is, the metabisulfite solution that sodium methyl mercaptide production waste liquid obtains after vitriolization enters in metabisulfite solution circulation groove, in metabisulfite solution circulation groove, a solution part is through suction filtration, the sodium sulfate filter cake that suction filtration obtains is delivered in pneumatic dryer, filtrate is through clear liquid groove, crystal solution circulatory pool enters in prilling tower and carries out crystallization, form the solution containing saltcake crystal, solution containing saltcake crystal is again through suction filtration, the filter cake obtained is delivered in follow-up drier, filtrate continues crystallization by clear liquid groove and crystal solution circulatory pool again, in metabisulfite solution circulation groove, another part solution is delivered in humidification vaporizer and is carried out enrichment, solution after enrichment returns in metabisulfite solution circulation groove, to improve metabisulfite solution crystalline rate.
Claims (1)
1. a sodium mercaptides crystallization conversion saltcake device, it is characterized in that forming primarily of metabisulfite solution circulation groove, suction filtration tank, clear liquid groove, crystal solution circulatory pool, prilling tower and humidification vaporizer, the liquid exit of metabisulfite solution circulation groove is connected with suction filtration tank with humidification vaporizer respectively, the outlet of humidification vaporizer is connected in metabisulfite solution circulation groove, the liquid exit of suction filtration tank is connected with prilling tower with crystal solution circulatory pool by clear liquid groove, is connected bottom prilling tower with suction filtration tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500993.9U CN204778864U (en) | 2015-07-13 | 2015-07-13 | Sodium mercaptide crystallization conversion glauber's salt device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500993.9U CN204778864U (en) | 2015-07-13 | 2015-07-13 | Sodium mercaptide crystallization conversion glauber's salt device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204778864U true CN204778864U (en) | 2015-11-18 |
Family
ID=54518956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520500993.9U Expired - Fee Related CN204778864U (en) | 2015-07-13 | 2015-07-13 | Sodium mercaptide crystallization conversion glauber's salt device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204778864U (en) |
-
2015
- 2015-07-13 CN CN201520500993.9U patent/CN204778864U/en not_active Expired - Fee Related
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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: 20151118 Termination date: 20210713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |