CN202643330U - Device for preparing high-purity ammonium fluosilicate - Google Patents
Device for preparing high-purity ammonium fluosilicate Download PDFInfo
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- CN202643330U CN202643330U CN 201220306876 CN201220306876U CN202643330U CN 202643330 U CN202643330 U CN 202643330U CN 201220306876 CN201220306876 CN 201220306876 CN 201220306876 U CN201220306876 U CN 201220306876U CN 202643330 U CN202643330 U CN 202643330U
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Abstract
The utility model discloses a device for preparing high-purity ammonium fluosilicate. The device is composed of a neutral reaction tank (1), a flash chamber (2), a setting tank (3), an axial flow pump (4), a graphite heat exchanger (5) and pipelines for connecting equipment. The neutral reaction tank (1) is connected with the setting tank (3) through a pipeline with a valve, the middle of the flash chamber (2) is connected with the outlet end of the graphite heat exchanger (5) through a pipeline, the lower portion of the flash chamber is connected with the setting tank (3) through a pipeline, the middle of the setting tank (3) is connected with the inlet end of the graphite heat exchanger (5) through a pipeline and the axial flow pump (4), and an outlet at the bottom is connected with a filter through a pipeline. The device is used for producing ammonium fluosilicate products with the purity more than 90%, low in process energy consumption, safe and reliable to operate, capable of producing continuously and suitable for fluorine resource comprehensive utilization of large phosphatic fertilizer enterprises.
Description
Technical field
The utility model relates to fluorochemicals, in particular to silicofluoric acid, and the particularly production equipment of ammonium silicofluoride.
Background technology
As everyone knows, can produce a large amount of fluoro-gas in the sulphur dioxide of phosphor chemical industry process of manufacture, exist with forms such as silicon tetrafluoride, hydrogen fluoride, these materials can be caused serious environmental pollution as not recycling, and cause the waste of fluorine resource.The fluoro-gas that produces during at present take Rock Phosphate (72Min BPL) as raw material production phosphoric acid by wet process phosphate fertilizer, major part obtains silicofluoric acid after water absorbs processing.Recycle this part silicofluoric acid, not only be conducive to administer fluoride pollution, and be conducive to the protection of fluorite resource, more be conducive to the fluorine efficient utilization of resource.Existing method is Sodium Silicofluoride to be processed in the reaction of silicofluoric acid and soda ash sell, but its price is lower, and market capacity is limited, is unfavorable for the maximization of the performance of enterprises and to the efficient utilization of valuable fluorine resource.Desirable method is that the fluorine element silicon is converted into the higher fluorine silicon product of economic worth, such as hydrogen fluoride, ammonium silicofluoride, white carbon black or silicate etc., improves the level of utilizing.
The technical scheme that relates to ammonium silicofluoride production in the Chinese patent database only has " utilizing phosphate fertilizer by-product waste gas containing fluoride to produce the method for ammonium silicofluoride " CN 101850978 A numbers, the ammonium silicofluoride crystalline mother solution that the method discloses with 22% indirectly absorbs fluoro-gas, the fluorine-containing rich solution that the obtains ammonium silicofluoride absorption liquid that neutralization obtains lower concentration through ammonia again filters rear liquid and produces ammonium silicofluoride through crystallisation by cooling again.The method can not be produced high-purity ammonium silicofluoride product.There is no at present the patent application of high-purity fluorine ammonium silicate production unit.
Summary of the invention
The purpose of this utility model is to provide a kind of device for preparing the high-purity fluorine ammonium silicate, and the shortcoming that exists to overcome prior art realizes producing continuously high-purity fluorine ammonium silicate product.
The device of the preparation high-purity fluorine ammonium silicate that the designer provides is comprised of neutralization reaction groove, flashing chamber, subsider, propeller pump, graphite heat exchanger and the pipeline that connects each equipment, and the neutralization reaction groove is connected with subsider by the pipeline with valve; The flashing chamber middle part has pipeline to connect the graphite heat exchanger exit end, and the bottom has pipeline to connect subsider; The subsider middle part has pipeline to connect the graphite heat exchanger entrance end through propeller pump again, and outlet at bottom has pipeline to connect filter.
Agitator with electric motor is installed in the above-mentioned neutralization reaction groove, and silicate fluoride solution import and liquefied ammonia import are arranged at the top, and the neutralizer outlet is arranged at the bottom.
Above-mentioned flashing chamber is comprised of steam condenser, middle cylinder and the bottom cone on top, and there is the ammonium silicofluoride dilute solution inlet at the middle part, and the outlet of ammonium silicofluoride strong solution is arranged at the bottom; The external valve tube of flashing chamber.
Agitator with electric motor is installed in the above-mentioned subsider, is comprised of top cylinder and bottom cone, top cylinder has the import of ammonium silicofluoride strong solution and circulation fluid outlet, and the taphole of fluorine-containing ammonium silicate crystal is arranged at the bottom of bottom cone.
Above-mentioned propeller pump is the 600ZLB-70 type, and the import and export of circulation fluid are arranged.
Above-mentioned graphite heat exchanger is shell and tube heat exchanger, and there are respectively the import and export of circulation fluid at the tube side two ends, and shell side has steam inlet and condensate outlet.
The using method of the device of preparation high-purity fluorine ammonium silicate is: silicofluoric acid and liquefied ammonia are sent into carried out neutralization reaction in the reactive tank; After reaction finishes, reaction solution is pumped into subsider, mix with solution after the flash distillation; Behind the sedimentation crystallize out, become circulation fluid, squeeze into graphite heat exchanger through propeller pump, be heated by steam, send into the low-flash of flashing chamber under vacuum state, most of moisture content is taken away by vacuum in the solution, be concentrated into and separate out the ammonium silicofluoride crystal under the state of saturation, solution after the flash distillation enters subsider, and the solution of fluorine-containing ammonium silicate crystal is emitted from subsider bottom, namely obtains purity after the filtration and reaches high-purity fluorine ammonium silicate product more than 90%.
With the utility model can production purity at the ammonium silicofluoride product more than 90%, the process energy consumption is low, operational safety is reliable, is easy to realize continuous production.Be applicable to the comprehensive utilization of large-scale phosphatic fertilizer company fluorine resource.
Description of drawings
Fig. 1 is structure iron of the present utility model.Among the figure: 1 is the neutralization reaction groove, and 2 is flashing chamber, and 3 is subsider, and 4 is propeller pump, and 5 is graphite heat exchanger, 6 be in and liquid pump.
Embodiment
Embodiment
Certain company adopts device of the present utility model to produce ammonium silicofluoride.Apparatus structure such as Fig. 1 are comprised of neutralization reaction groove 1, flashing chamber 2, subsider 3, propeller pump 4, graphite heat exchanger 5 and the pipeline that connects each equipment, and neutralization reaction groove 1 is connected with subsider 3 by the pipeline with valve; Flashing chamber 2 middle parts have pipeline to connect graphite heat exchanger 5 exit end, and the bottom has pipeline to connect subsider 3; Subsider 3 middle parts have pipeline to connect graphite heat exchanger 5 entrance ends through propeller pump 4, and outlet at bottom has pipeline to connect filter.
During use, raw material ammonium fluosilicate solution and liquefied ammonia are sent into and are carried out neutralization reaction in the reactive tank, after reaction finishes in and liquid pump 6 neutralizer is pumped into subsider 3, mix with solution after the flash distillation; Become circulation fluid behind the sedimentation crystallize out, squeeze into graphite heat exchanger 5 through propeller pump 4, be heated by steam, send into flashing chamber 2 low-flash under vacuum state, most of moisture content is taken away by vacuum in the solution, is concentrated into to separate out the ammonium silicofluoride crystal under the state of saturation, and the solution after the flash distillation enters subsider 3, the solution of fluorine-containing ammonium silicate crystal is emitted from subsider 3 bottoms, obtains the high-purity fluorine ammonium silicate product of purity more than 90% after DU21.6-180 type filter filters.
Since building up, through actual verification, the device continuous and steady operation, energy consumption index is low.
Claims (6)
1. device for preparing the high-purity fluorine ammonium silicate, it is characterized in that device is comprised of neutralization reaction groove (1), flashing chamber (2), subsider (3), propeller pump (4), graphite heat exchanger (5) and the pipeline that connects each equipment, neutralization reaction groove (1) is connected with subsider (3) by the pipeline with valve; Flashing chamber (2) middle part has pipeline to connect graphite heat exchanger (5) exit end, and the bottom has pipeline to connect subsider (3); Subsider (3) middle part has pipeline to connect graphite heat exchanger (5) entrance end through propeller pump (4), and outlet at bottom has pipeline to connect filter.
2. device as claimed in claim 1 is characterized in that being equipped with in the described neutralization reaction groove (1) agitator with electric motor, and silicate fluoride solution import and liquefied ammonia import are arranged at the top, and the neutralizer outlet is arranged at the bottom.
3. device as claimed in claim 1 is characterized in that described flashing chamber (2) is comprised of steam condenser, middle cylinder and the bottom cone on top, and there is the ammonium silicofluoride dilute solution inlet at the middle part, and the outlet of ammonium silicofluoride strong solution is arranged at the bottom; The external valve tube of flashing chamber (2).
4. device as claimed in claim 1, it is characterized in that being equipped with in the described subsider (3) agitator with electric motor, subsider (3) is comprised of top cylinder and bottom cone, top cylinder has the import of ammonium silicofluoride strong solution and circulation fluid outlet, and the taphole of fluorine-containing ammonium silicate crystal is arranged at the bottom of bottom cone.
5. device as claimed in claim 1 is characterized in that described propeller pump (4) is the 600ZLB-70 type, has the import and export of circulation fluid.
6. device as claimed in claim 1 is characterized in that described graphite heat exchanger (5) is shell and tube heat exchanger, and the tube side two ends have respectively circulation fluid to import and export, and shell side has steam inlet and condensate outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220306876 CN202643330U (en) | 2012-06-28 | 2012-06-28 | Device for preparing high-purity ammonium fluosilicate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220306876 CN202643330U (en) | 2012-06-28 | 2012-06-28 | Device for preparing high-purity ammonium fluosilicate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202643330U true CN202643330U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220306876 Expired - Fee Related CN202643330U (en) | 2012-06-28 | 2012-06-28 | Device for preparing high-purity ammonium fluosilicate |
Country Status (1)
| Country | Link |
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| CN (1) | CN202643330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107715549A (en) * | 2017-09-08 | 2018-02-23 | 瓮福达州化工有限责任公司 | A kind of potassium fluosilicate/sodium separation device and its application |
-
2012
- 2012-06-28 CN CN 201220306876 patent/CN202643330U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107715549A (en) * | 2017-09-08 | 2018-02-23 | 瓮福达州化工有限责任公司 | A kind of potassium fluosilicate/sodium separation device and its application |
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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: GUIZHOU KAILIN GROUP CO., LTD. Free format text: FORMER NAME: KAILIN (GROUP) CO., LTD., GUIZHOU |
|
| CP03 | Change of name, title or address |
Address after: No. 237 Jinyang City Kailin Lake District Road 550009 Guizhou city of Guiyang Province Patentee after: Phosphorylcholine group limited-liability company is opened in Guizhou Address before: 550002 No. 203 Zhonghua South Road, Guizhou, Guiyang Patentee before: Guizhou Kailin (Group) Co.,Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161229 Address after: Xifeng County hamlet village center in Guizhou province 551109 Ba Zhen Guiyang city (office building) Patentee after: Guizhou Kailin fluoride silicon chemical limited liability company Address before: No. 237 Jinyang City Kailin Lake District Road 550009 Guizhou city of Guiyang Province Patentee before: Phosphorylcholine group limited-liability company is opened in Guizhou |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20210628 |