CN207886944U - The high-efficient treatment device of exhaust gas in a kind of production of lithium hexafluoro phosphate - Google Patents
The high-efficient treatment device of exhaust gas in a kind of production of lithium hexafluoro phosphate Download PDFInfo
- Publication number
- CN207886944U CN207886944U CN201721835229.2U CN201721835229U CN207886944U CN 207886944 U CN207886944 U CN 207886944U CN 201721835229 U CN201721835229 U CN 201721835229U CN 207886944 U CN207886944 U CN 207886944U
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- China
- Prior art keywords
- heat exchanger
- water scrubber
- exhaust gas
- treatment device
- hexafluoro phosphate
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Abstract
The utility model is related to technical field of waste gas treatment, the high-efficient treatment device of exhaust gas in being produced in particular to a kind of lithium hexafluoro phosphate.The utility model uses following technical method：The high-efficient treatment device of exhaust gas in a kind of production of lithium hexafluoro phosphate, including heat exchanger, deduster, water scrubber, the heat exchanger include outer cover of heat exchanger and heat exchanger inner casing, and the heat exchanger inner casing is equipped with exhaust gas entrance and waste gas outlet, coolant liquid is filled between the outer cover of heat exchanger and heat exchanger inner casing, the deduster is connect with the waste gas outlet, and the water scrubber is equipped with water scrubber entrance and water scrubber exports, and the water scrubber entrance is connected with the deduster.The utility model has separative efficiency height, the advantage of high treating effect.
Description
Technical field
The utility model is related to technical field of waste gas treatment, exhaust gas in being produced in particular to a kind of lithium hexafluoro phosphate
High-efficient treatment device.
Background technology
Lithium hexafluoro phosphate is typical high-tech, high-risk production environment, height as the critical material of lithium rechargeable battery
The " three high " technical products of hardly possible production, the synthesis technology of mainstream is anhydrous hydrogen fluoride solvent method at present, and the tail gas generated is to contain
There are the mixture of HCl and HF, wherein HF accountings about 10-15%, the processing method now generally used are to be fed directly to tail gas
The mixed acid containing HCl and HF is made in scrubbing tower washing absorption（The wherein content of HF is up to 10% or more）, this processing method is not
Efficiently separating for HCl and HF can be realized, to keep the application range of its by-product hydrochloric acid limited.
Therefore the device for handling exhaust gas in lithium hexafluoro phosphate production that a kind of separative efficiency is high is needed at present.
Utility model content
Therefore to solve the above-mentioned problems, provide a kind of separative efficiency it is high for handle lithium hexafluoro phosphate production in exhaust gas
Device, the utility model use following technical scheme：
The high-efficient treatment device of exhaust gas in a kind of production of lithium hexafluoro phosphate, including：
Heat exchanger：The heat exchanger includes outer cover of heat exchanger and heat exchanger inner casing, and the heat exchanger inner casing is equipped with
Exhaust gas entrance and waste gas outlet are filled with coolant liquid between the outer cover of heat exchanger and heat exchanger inner casing；
Deduster：The deduster is connect with the waste gas outlet；
Water scrubber：The water scrubber is equipped with water scrubber entrance and water scrubber and exports, the water scrubber entrance and described
Deduster connection.
The main component of exhaust gas is hydrogen fluoride and hydrogen chloride gas in lithium hexafluoro phosphate production, in the embodiment of the utility model
In cooling treatment carried out to exhaust gas by heat exchanger, a part of hydrogen fluoride gas liquefaction that is cooled at this time is separated, then
A small amount of hydrogen fluoride and hydrogen chloride gas enters water scrubber by deduster, since two kinds of components are all dissolved in water after washing,
Therefore there is preferable treatment effect for exhaust emission.
Preferably, being equipped with caustic wash tower after the water scrubber, caustic wash tower water scrubber outlet with shown in connects.
By adding caustic wash tower after water scrubber, the hydrogen chloride for not going to eliminate and hydrogen fluoride gas can be prevented, it is prevented
Pollute environment.
Preferably, further include having the first collecting tank and the second collecting tank, first collecting tank and the heat exchange
Device inner shell bottom connects, and second collecting tank is connect with washing tower bottom.
Hydrogen fluoride is collected by the first collecting tank, hydrogen chloride is collected by the second collecting tank, is both had higher pure
Degree can be used as raw material to carry out repeated recycling utilize, reduce production cost, improve raw material availability.
Preferably, being equipped with reactor between the deduster and heat exchanger, materail tube is equipped in the reactor,
Lithium chloride powder is placed in the materail tube.
The hydrogen fluoride gas not removed is further eliminated by lithium chloride and hydrogen fluoride reaction, improves the pure of hydrogen chloride
Degree improves separative efficiency and improves economic benefit to improve the application range of byproduct hydrochloric acid.
Preferably, the caustic wash tower is equipped with gas outlet, it is equipped with electrostatic precipitator, the electricity afterwards on the gas outlet
Demister is equipped with corona polar line, by there is 45 ~ 48 kilovolts of DC high-voltage on the corona polar line.
Micro hydrogen chloride and hydrogen fluoride gas can be electrolysed by being equipped with electrostatic precipitator on caustic wash tower, to prevent
Hydrogen chloride and hydrogen fluoride that may be present pollute in treated exhaust gas.
The beneficial effects of the utility model are：The utility model has separative efficiency height, the advantage of high treating effect.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the heat exchanger of the utility model；
Fig. 3 is the structural schematic diagram of reactor.
Specific implementation mode
The utility model is further explained with reference to the accompanying drawings of the specification：
As shown in Figure 1, in a kind of production of lithium hexafluoro phosphate exhaust gas high-efficient treatment device, including：
Heat exchanger 1：The heat exchanger 1 includes outer cover of heat exchanger 11 and heat exchanger inner casing 12, the heat exchanger inner casing
12 are equipped with exhaust gas entrance 121 and waste gas outlet 122, filled with cold between the outer cover of heat exchanger 11 and heat exchanger inner casing 12
But liquid；
Deduster 2：The deduster 2 is connect with the waste gas outlet 122；
Water scrubber 3：The water scrubber 3 is equipped with water scrubber entrance 31 and water scrubber outlet 32, the water scrubber entrance
31 and the deduster 2 connection, after water scrubber 3 be equipped with caustic wash tower 4, the caustic wash tower 4 with shown in water scrubber export
32 connections, the caustic wash tower 4 are equipped with gas outlet 41, electrostatic precipitator 6, the electric demisting are equipped with afterwards on the gas outlet 41
Device 6 is equipped with corona polar line 61, by there is 45 ~ 48 kilovolts of DC high-voltage on the corona polar line 61.
Collecting tank 5：Collecting tank 5 includes the first collecting tank 51 and the second collecting tank 52, first collecting tank 51 with
12 bottom of the heat exchanger inner casing connection, second collecting tank 52 are connect with 3 bottom of water scrubber.
Reactor 7：It is equipped with reactor 7 between the deduster 2 and heat exchanger 1, material is equipped in the reactor 7
Pipe 71 is placed with lithium chloride powder in the materail tube 71.
Exhaust gas is stored in first by heat exchanger 1, a part of hydrogen fluoride gas cooling liquid first in use
In collecting tank 51, then remainder of exhaust gas is reacted by the lithium chloride in reactor 7 by reactor 7, further gets rid of exhaust gas
In hydrogen fluoride gas, while being removed by deduster 2 that may be present in the tiny lithium chloride particle and exhaust gas that may take out of
Fine particle, subsequent exhaust gas obtain the high hydrochloric acid of purity, by hydrochloric acid by water scrubber 3 after 3 shower of water scrubber
It is stored in the second collecting tank 52, last tail gas is removed by caustic wash tower 4 and the ionization of electrostatic precipitator 6, avoids causing environment
Harm.
And the utility model reduces the hydrogen fluoride in water scrubber 3 by deduster 2 and 7 collective effect of reactor
Concentration, to improve obtained hydrochloric acid purity.
Claims (5)
1. the high-efficient treatment device of exhaust gas in a kind of lithium hexafluoro phosphate production, including：
Heat exchanger：The heat exchanger includes outer cover of heat exchanger and heat exchanger inner casing, and the heat exchanger inner casing is equipped with exhaust gas
Entrance and waste gas outlet are filled with coolant liquid between the outer cover of heat exchanger and heat exchanger inner casing；
Deduster：The deduster is connect with the waste gas outlet；
Water scrubber：The water scrubber is equipped with water scrubber entrance and water scrubber and exports, and the water scrubber entrance and described removes
Dirt device connects.
2. the high-efficient treatment device of exhaust gas in a kind of lithium hexafluoro phosphate production according to claim 1, it is characterised in that：Institute
Caustic wash tower is equipped with after the water scrubber stated, caustic wash tower water scrubber outlet with shown in connects.
3. the high-efficient treatment device of exhaust gas in a kind of lithium hexafluoro phosphate production according to claim 1, it is characterised in that：Also
Include the first collecting tank and the second collecting tank, first collecting tank is connect with the heat exchanger inner shell bottom, described
The second collecting tank with washing tower bottom connect.
4. the high-efficient treatment device of exhaust gas in a kind of lithium hexafluoro phosphate production according to claim 1, it is characterised in that：Institute
It is equipped with reactor between the deduster and heat exchanger stated, materail tube is equipped in the reactor, is placed in the materail tube
There is lithium chloride powder.
5. the high-efficient treatment device of exhaust gas in a kind of lithium hexafluoro phosphate production according to claim 2, it is characterised in that：Institute
The caustic wash tower stated is equipped with gas outlet, is equipped with electrostatic precipitator on the gas outlet afterwards, and the electrostatic precipitator is equipped with corona discharge electrode
Line, by there is 45 ~ 48 kilovolts of DC high-voltage on the corona polar line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721835229.2U CN207886944U (en) | 2017-12-25 | 2017-12-25 | The high-efficient treatment device of exhaust gas in a kind of production of lithium hexafluoro phosphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721835229.2U CN207886944U (en) | 2017-12-25 | 2017-12-25 | The high-efficient treatment device of exhaust gas in a kind of production of lithium hexafluoro phosphate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207886944U true CN207886944U (en) | 2018-09-21 |
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ID=63549962
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721835229.2U Active CN207886944U (en) | 2017-12-25 | 2017-12-25 | The high-efficient treatment device of exhaust gas in a kind of production of lithium hexafluoro phosphate |
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| CN (1) | CN207886944U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111874932A (en) * | 2020-08-12 | 2020-11-03 | 山东昭和新材料科技股份有限公司 | Method for controlling phosphorus content in aluminum fluoride production |
| CN115041008A (en) * | 2022-06-30 | 2022-09-13 | 江苏泰瑞联腾材料科技有限公司 | Lithium hexafluorophosphate tail gas treatment process and device thereof |
| CN115970466A (en) * | 2023-01-29 | 2023-04-18 | 紫科装备股份有限公司 | Lithium power battery electrolyte waste gas treatment process |
-
2017
- 2017-12-25 CN CN201721835229.2U patent/CN207886944U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111874932A (en) * | 2020-08-12 | 2020-11-03 | 山东昭和新材料科技股份有限公司 | Method for controlling phosphorus content in aluminum fluoride production |
| CN115041008A (en) * | 2022-06-30 | 2022-09-13 | 江苏泰瑞联腾材料科技有限公司 | Lithium hexafluorophosphate tail gas treatment process and device thereof |
| CN115970466A (en) * | 2023-01-29 | 2023-04-18 | 紫科装备股份有限公司 | Lithium power battery electrolyte waste gas treatment process |
| CN115970466B (en) * | 2023-01-29 | 2023-08-29 | 紫科装备股份有限公司 | Lithium power battery electrolyte waste gas treatment process |
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