CN202322405U - Low-temperature sodium nitrate crystallizing device - Google Patents
Low-temperature sodium nitrate crystallizing device Download PDFInfo
- Publication number
- CN202322405U CN202322405U CN 201120457805 CN201120457805U CN202322405U CN 202322405 U CN202322405 U CN 202322405U CN 201120457805 CN201120457805 CN 201120457805 CN 201120457805 U CN201120457805 U CN 201120457805U CN 202322405 U CN202322405 U CN 202322405U
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- cooling water
- sodium nitrate
- low
- heat exchanger
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Abstract
The utility model specifically relates to a low-temperature sodium nitrate crystallizing device, which comprises a crystallizer and a flash drum. The low-temperature sodium nitrate crystallizing device is characterized in that the low-temperature sodium nitrate crystallizing device is also provided with a heat exchanger, wherein a mother liquid outlet of the crystallizer is connected with a liquid inlet of the heat exchanger by a pipeline, a liquid outlet of the heat exchanger is connected with a liquid inlet of the flash drum through a pipeline, a steam outlet of the flash drum is connected with an air inlet of a condenser through a pipeline, a liquid outlet of the condenser is connected with a cooling water inlet of the heat exchanger through a cooling water inlet pipe, and a cooling water outlet of the heat exchanger is connected with a desalted water storage cylinder through a cooling water outlet pipe. The low-temperature sodium nitrate crystallizing device provided by the utility model has the advantages of stability and reliability in operation, and flexibility and convenience in operation. By using the low-temperature sodium nitrate crystallizing device provided by the utility model, mother liquor of sodium nitrate is flashed at a low temperature, no thinner needs to be added to the mother liquor, no slot expansion phenomena appear, and the output of sodium nitrate is enhanced. Because the mother liquor expansion phenomena are reduced, the output of sodium nitrate is enhanced, and the appearance of sodium nitrate waste is avoided.
Description
Technical field
The utility model is specifically related to a kind of SODIUMNITRATE low temperature crystallization device.
Background technology
In the SODIUMNITRATE production process, when chloride content is high in the SODIUMNITRATE mother liquor, muriate will be separated out with the product crystallization, and muriatic content is the major cause that influences the SODIUMNITRATE quality product.At present chloride content can only be controlled at about 0.5% in the SODIUMNITRATE finished product, can only reduce chloride content through putting solvent or diluent after chloride content exceeds standard, and this method very easily causes the SODIUMNITRATE mother liquor groove that expands, and has a strong impact on SODIUMNITRATE output.Discover through the technician; SODIUMNITRATE solubleness temperature influence is bigger; And muriatic solubleness temperature influence is less; If can make the SODIUMNITRATE mother liquor get into flash tank fast cooling in the past, the solubleness of SODIUMNITRATE reduces, and when flash distillation, just can obtain the less SODIUMNITRATE product of chloride content
The utility model content
The purpose of the utility model is to provide a kind of SODIUMNITRATE low temperature crystallization device, uses this device, can make SODIUMNITRATE mother liquor fast cooling before getting into flash tank, so that obtain the lower SODIUMNITRATE product of chloride content.
The utility model is realized through following technical scheme:
It is a kind of SODIUMNITRATE low temperature crystallization device; Comprise crystallizer and flash tank; It is characterized in that also being provided with an interchanger; The mother liquor outlet of said crystallizer is connected through pipeline with the fluid inlet of interchanger, and the liquid outlet of interchanger is connected through pipeline with the fluid inlet of flash tank, and the vapour outlet of flash tank is connected through pipeline with the inlet mouth of condensing surface; The liquid outlet of condensing surface is connected through cooling water inlet pipe with the entrance of cooling water of interchanger, and the cooling water outlet of interchanger is connected with the de-salted water hold-up vessel through cooling water outlet pipe.
A preferred version as the utility model: cooling water inlet pipe is connected with cooling water outlet pipe through a branch road, is equipped with valve on cooling water inlet pipe and the branch road.
A preferred version as the utility model: interchanger is tube and shell heat exchanger or plate-type heat exchanger.
The utility model can suitably be adjusted the valve of water of condensation water inlet pipe according to chloride content in the SODIUMNITRATE finished product, reduces the heat that the crystallizer circulating mother liquor absorbs, and makes it reduce temperature fast, in flash tank, produces the SODIUMNITRATE finished product of a large amount of low chlorine contents.
It is reliable to the utlity model has working stability, advantage flexible and convenient to use.Use the utility model, the flash distillation under lower temperature of SODIUMNITRATE mother liquor need not in mother liquor, to add solvent or diluent, the groove phenomenon that expands can not occur, and has improved the output of SODIUMNITRATE.The intumescent minimizing of mother liquor has not only improved the output of SODIUMNITRATE, has also avoided the appearance of SODIUMNITRATE waste product.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Shown in figure: 1 crystallizer; 2 interchanger; 3 valves; 4 cooling water inlet pipes; 5 branch roads; 6 valves; 7 de-salted water hold-up vessels; 8 condensing surfaces; 9 cooling water outlet pipes, 10 flash tanks.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further elaboration.
As shown in Figure 1: the mother liquor outlet of crystallizer 1 is connected through pipeline with the fluid inlet of interchanger 2; The liquid outlet of interchanger 2 is connected through pipeline with the fluid inlet of flash tank 10; The vapour outlet of flash tank 10 is connected through pipeline with the inlet mouth of condensing surface 8; The liquid outlet of condensing surface 8 is connected through cooling water inlet pipe 4 with the entrance of cooling water of interchanger 2; The cooling water outlet of interchanger 2 is connected with de-salted water hold-up vessel 7 through cooling water outlet pipe 9, and cooling water inlet pipe 4 is connected with cooling water outlet pipe 9 through branch road 5, and cooling water inlet pipe 4, branch road 5 are respectively equipped with valve 3, valve 6.
The utility model makes full use of the steam of discharging in the flash tank 10, utilizes the water of condensation of condensing surface 8 to offer interchanger 2, makes its temperature that reduces the SODIUMNITRATE mother liquor fast, in flash tank 10, produces the SODIUMNITRATE finished product of a large amount of low chlorine contents.
Claims (3)
1. SODIUMNITRATE low temperature crystallization device; Comprise crystallizer and flash tank; It is characterized in that also being provided with an interchanger; The mother liquor outlet of said crystallizer is connected through pipeline with the fluid inlet of interchanger, and the liquid outlet of interchanger is connected through pipeline with the fluid inlet of flash tank, and the vapour outlet of flash tank is connected through pipeline with the inlet mouth of condensing surface; The liquid outlet of condensing surface is connected through cooling water inlet pipe with the entrance of cooling water of interchanger, and the cooling water outlet of interchanger is connected with the de-salted water hold-up vessel through cooling water outlet pipe.
2. SODIUMNITRATE low temperature crystallization device according to claim 1 is characterized in that cooling water inlet pipe passes through a branch road and is connected with cooling water outlet pipe, is equipped with valve on cooling water inlet pipe and the branch road.
3. SODIUMNITRATE low temperature crystallization device according to claim 1 is characterized in that interchanger is tube and shell heat exchanger or plate-type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120457805 CN202322405U (en) | 2011-11-18 | 2011-11-18 | Low-temperature sodium nitrate crystallizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120457805 CN202322405U (en) | 2011-11-18 | 2011-11-18 | Low-temperature sodium nitrate crystallizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202322405U true CN202322405U (en) | 2012-07-11 |
Family
ID=46434395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120457805 Expired - Fee Related CN202322405U (en) | 2011-11-18 | 2011-11-18 | Low-temperature sodium nitrate crystallizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202322405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041612A (en) * | 2012-12-29 | 2013-04-17 | 化工部长沙设计研究院 | Method for controlling sodium nitrate quality in vacuum cooling crystallization technology |
-
2011
- 2011-11-18 CN CN 201120457805 patent/CN202322405U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041612A (en) * | 2012-12-29 | 2013-04-17 | 化工部长沙设计研究院 | Method for controlling sodium nitrate quality in vacuum cooling crystallization technology |
| CN103041612B (en) * | 2012-12-29 | 2014-06-25 | 化工部长沙设计研究院 | Method for controlling sodium nitrate quality in vacuum cooling crystallization technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HELI TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANDONG UNITED CHEMICAL INDUSTRY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 256120 No. 36 Dongfeng Road, Yiyuan County, Shandong, Zibo Patentee after: SHANDONG LIAHERD CHEMICAL INDUSTRY CO., LTD. Address before: 256120 No. 36 Dongfeng Road, Yiyuan County, Shandong, Zibo Patentee before: Shandong United Chemical Industry Co., Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20171122 Address after: Yiyuan County Economic Development Zone 256100 Shandong city of Zibo province (county Yihe Road No. 1329) Patentee after: Shandong Heli Chemical Co., Ltd. Address before: 256120 No. 36 Dongfeng Road, Yiyuan County, Shandong, Zibo Patentee before: SHANDONG LIAHERD CHEMICAL INDUSTRY CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20181118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |