CN207886731U - A kind of sedimentation device efficiently separating lithium hexafluoro phosphate semi-finished product and mother liquor - Google Patents
A kind of sedimentation device efficiently separating lithium hexafluoro phosphate semi-finished product and mother liquor Download PDFInfo
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- CN207886731U CN207886731U CN201820041096.XU CN201820041096U CN207886731U CN 207886731 U CN207886731 U CN 207886731U CN 201820041096 U CN201820041096 U CN 201820041096U CN 207886731 U CN207886731 U CN 207886731U
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- filter screen
- mother liquor
- hexafluoro phosphate
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- tank body
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Abstract
The utility model is related to lithium hexafluoro phosphate preparing technical fields, disclose a kind of sedimentation device efficiently separating lithium hexafluoro phosphate semi-finished product and mother liquor.The device includes tank body, agitating device and filter screen, tank body top is the inner cylindrical section of cylindrical shape, inner cylindrical section is equipped with filtrate import, lower part is coniform conus portion, the outer cover of inner cylindrical section is equipped with one layer of outer cylinder portion, closed chamber interlayer is formed between inner cylindrical section and outer cylinder portion, outer cylinder portion is equipped with condensation water inlet and condensation-water drain, agitating device includes shaft, motor above shaft and the mixing part below shaft, shaft is set to tank body central axis direction, the lower part of conus portion is equipped with filtrate (liquid, filter screen includes the first filter screen being set on conus portion and the second filter screen at mother liquor outlet.The utility model hexafluorophosphoric acid crystalline lithium is not easy to block filter screen, improves the separative efficiency of crystal and mother liquor.
Description
Technical field
The utility model is related to lithium hexafluoro phosphate preparing technical fields, and lithium hexafluoro phosphate is efficiently separated more particularly, to one kind
The sedimentation device of semi-finished product and mother liquor.
Background technology
Lithium hexafluoro phosphate is always the most important electrolyte lithium salt for being commercialized and being used in lithium battery, existing lithium hexafluoro phosphate
Preparation method is first to carry out rectifying purifying to anhydrous hydrogen fluoride, obtains high-purity anhydrous hydrogen fluoride, is then dissolved in lithium fluoride
In high-purity anhydrous hydrogen fluoride, the anhydrous hydrogen fluoride solution containing lithium fluoride is obtained, phosphorus pentachloride is added, prepares lithium hexafluoro phosphate
Lithium hexafluoro phosphate saturated solution is finally obtained hexafluoro phosphorus by saturated solution through low temperature crystallization, solidification separation, dry, crushing packing
Sour lithium product.In low temperature crystallization cures separation process, hexafluorophosphoric acid crystalline lithium is easy to result in blockage to filter screen the prior art,
Influence the separative efficiency of hexafluorophosphoric acid crystalline lithium semi-finished product.
Invention content
The utility model is reduced brilliant to overcome prior art hexafluorophosphoric acid crystalline lithium to be easy to result in blockage to filter screen
The problem of body and mother liquor separative efficiency, provides a kind of hexafluorophosphoric acid crystalline lithium and is not easy to result in blockage to filter screen, improves hexafluoro
The sedimentation device of the separative efficiency of lithium phosphate semi-finished product and mother liquor.
To achieve the goals above, the utility model uses following technical scheme：One kind efficiently separating lithium hexafluoro phosphate half
The sedimentation device of finished product and mother liquor, including tank body, agitating device and filter screen, the tank body top are the inner cylinder of cylindrical shape
Portion, the inner cylindrical section are equipped with filtrate import, and lower part is coniform conus portion, and the outer cover of the inner cylindrical section is equipped with one
Layer outer cylinder portion, forms closed chamber interlayer between the inner cylindrical section and outer cylinder portion, the outer cylinder portion is equipped with cold
Condensate import and condensation-water drain, the agitating device include shaft, the motor above shaft and below shaft
Mixing part, the shaft are set to tank body central axis direction, and the mixing part is located at the inside of tank body, and motor is located at the upper of tank body
The lower part of side, the conus portion is equipped with filtrate (liquid, and the filter screen includes the first filter screen being set on conus portion and is set to
The second filter screen at mother liquor outlet, the agitating device are located at the top of the first filter screen, and the second filter screen is located at the first mistake
The lower section of strainer.
The utility model cools down to tank interior by condensed water, the lithium hexafluorophosphate solution of saturation to the cold after, it is molten
Xie Du is reduced, and hexafluorophosphoric acid crystalline lithium is precipitated, and the conus portion of tank base is sunk to, to prevent lithium hexafluoro phosphate crystallographic mistake
Greatly, lithium hexafluorophosphate solution is stirred using agitating device, control lithium hexafluoro phosphate crystal particle diameter is in a certain range, conveniently
It is follow-up to be dried and pulverization process；Since crystallographic particle is more, it is easy to result in blockage to filter screen, the use of the new type is adopted
Solve the problems, such as that crystal results in blockage to filter screen with the mode of double-filtration, the setting of the first filter screen aperture is bigger than normal, is used for
The big crystal of grain size is filtered, crystal less than normal, small for filtering grain size is arranged in the second filter screen aperture, using the side of multiple filtration
Formula reduces the quantity of every layer of filter screen retention crystal, it is not easy to result in blockage to filter layer, the separation for improving crystal and mother liquor is imitated
Rate.
Preferably, the tank interior is equipped with coil pipe, both ends and the chamber interlayer of the coil pipe penetrate through.
The utility model is arranged coil pipe in tank body, coil pipe connecting chamber interlayer, and the condensate liquid in chamber interlayer flows through disk
Pipe, can quickly reduce the temperature of filtered fluid, save the time；In addition tank interior temperature can be kept uniform, it is brilliant is conducive to control
Body crystallization rate.
Preferably, the coil pipe surrounds shaft coiled coil.
Preferably, the first filtering mesh-shaped is upward arc-shaped of arc convex.
In order to further prevent crystal to block the first filter screen, the first filter screen is arranged to arc convex by the utility model
Upward is arc-shaped, and for the crystal deposition of the first filter screen retention at the edge of filter screen, filter screen center is not easy deposited crystal
Grain prevents the first filter screen from blocking.
Preferably, the top of the tank body is equipped with thermometer.
Thermometer is used to observe the crystallization temperature of tank interior, convenient for controlling the crystallization temperature of hexafluorophosphoric acid crystalline lithium.
Preferably, the mixing part is composed of a fixed connection by two panels rotating vane, the company of shaft and two panels rotating vane
Contact is fixedly connected.
Therefore, the utility model has the advantages that：（1）Hexafluorophosphoric acid crystalline lithium is not easy to block filter screen, carries
The separative efficiency of high crystal and mother liquor；（2）Tank interior temperature reducing rate is fast, saves the time；（3）Pot temperature is uniform, just
In control crystallization rate.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the utility model.
Reference numeral
Tank body 1, agitating device 2, filter screen 3, coil pipe 4, inner cylindrical section 11, filtrate import 12, conus portion 13, outer cylinder portion
14, chamber interlayer 15, condensation water inlet 16, condensation-water drain 17, filtrate (liquid 18, thermometer 19, shaft 21, motor 22, stir
Mix portion 23, rotating vane 24, the first filter screen 31, the second filter screen 32.
Specific implementation mode
Below by specific embodiment, the technical solution of the utility model is described further.
Embodiment 1
A kind of structural schematic diagram of the utility model as shown in Figure 1, one kind efficiently separating lithium hexafluoro phosphate semi-finished product and mother
The top of the sedimentation device of liquid, including tank body 1, agitating device 2 and filter screen 3, the tank body is equipped with thermometer 19, the tank body
Top is the inner cylindrical section 11 of cylindrical shape, and lower part is coniform conus portion 13, and the inner cylindrical section is equipped with filtrate import 12,
The outer cover of the inner cylindrical section is equipped with one layer of outer cylinder portion 14, and closed chamber is formed between the inner cylindrical section and outer cylinder portion
Room interlayer 15, the outer cylinder portion are equipped with condensation water inlet 16 and condensation-water drain 17, and the lower part of the conus portion is equipped with filter
Liquid outlet 18, the agitating device includes shaft 21, the motor 22 above shaft and the mixing part below shaft 23,
The mixing part is composed of a fixed connection by two panels rotating vane 24, and shaft is fixedly connected with the tie point of two panels rotating vane, institute
It states shaft and is set to tank body central axis direction, the mixing part is located at the inside of tank body, and motor is located at the top of tank body, the tank body
It is internally provided with coil pipe 4, both ends and the chamber interlayer of the coil pipe penetrate through, and coil pipe surrounds shaft coiled coil；The filter screen packet
The first filter screen 31 on conus portion and the second filter screen 32 at mother liquor outlet are included, the first filtering mesh-shaped is arc
Upward arc-shaped of shape protrusion, the agitating device is located at the top of the first filter screen, and the second filter screen is located at the first filter screen
Lower section.
In lithium hexafluoro phosphate crystallization sedimentation with mother liquor separation process, it is molten that lithium hexafluoro phosphate saturation is first added into tank body
Then liquid is passed through condensed water to condensation water inlet, condensed water is full of chamber interlayer and coil pipe, rapidly drops the temperature of tank interior
Low, lithium hexafluoro phosphate solubility reduces, and hexafluorophosphoric acid crystalline lithium is precipitated, and opens agitating device, and rotating vane rotational agitation is molten
Liquid prevents lithium hexafluoro phosphate crystal structure particle excessive, and lithium hexafluoro phosphate crystal structure particle is settled by the effect of its own gravity
Onto the first filter screen of tank base, the first filter screen aperture is bigger than normal, the big hexafluorophosphoric acid crystalline lithium of trapped particles, the first mistake
Strainer is shaped to raised upward arc-shaped, prevents the first filter screen from blocking；The small hexafluorophosphoric acid crystalline lithium of particle passes through
The hole of first filter screen reaches the second filter screen, and the aperture of the second filter screen is less than normal, and the small lithium hexafluoro phosphate of retention grain size is brilliant
Body, two layers of filter screen of setting advantageously reduce the lithium hexafluoro phosphate amount of crystals of every layer of filter screen retention, prevent lithium hexafluoro phosphate
Crystal blocks filter screen.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation be not limited to the utility model although the utility model has been disclosed with preferred embodiment as above, it is any ripe
Professional and technical personnel is known, is not being departed within the scope of technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, as long as being without departing from technical solutions of the utility model
Hold, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention, still
It is within the scope of the technical solutions of the present invention.
Claims (6)
1. a kind of sedimentation device efficiently separating lithium hexafluoro phosphate semi-finished product and mother liquor, which is characterized in that including tank body（1）, stir
Mix device（2）And filter screen（3）, the tank body top is the inner cylindrical section of cylindrical shape（11）, lower part is coniform conus portion
（13）, the inner cylindrical section is equipped with filtrate import（12）, the outer cover of the inner cylindrical section is equipped with one layer of outer cylinder portion（14）,
Closed chamber interlayer is formed between the inner cylindrical section and outer cylinder portion（15）, the outer cylinder portion, which is equipped with, condenses water inlet
（16）And condensation-water drain（17）, the lower part of the conus portion is equipped with filtrate (liquid（18）, the agitating device includes shaft
（21）, motor above shaft（22）With the mixing part below shaft（23）, the shaft is set on tank body central shaft
Direction, the mixing part are located at the inside of tank body, and motor is located at the top of tank body, and the filter screen includes being set on conus portion
First filter screen（31）With the second filter screen at mother liquor outlet（32）, the agitating device is located at the upper of the first filter screen
Side, the second filter screen are located at the lower section of the first filter screen.
2. a kind of sedimentation device efficiently separating lithium hexafluoro phosphate semi-finished product and mother liquor according to claim 1, feature
It is, the tank interior is equipped with coil pipe（4）, both ends and the chamber interlayer of the coil pipe penetrate through.
3. a kind of sedimentation device efficiently separating lithium hexafluoro phosphate semi-finished product and mother liquor according to claim 2, feature
It is, the coil pipe surrounds shaft coiled coil.
4. a kind of sedimentation device efficiently separating lithium hexafluoro phosphate semi-finished product and mother liquor according to claim 1 or 2 or 3,
It is characterized in that, the first filtering mesh-shaped is upward arc-shaped of arc convex.
5. a kind of sedimentation device efficiently separating lithium hexafluoro phosphate semi-finished product and mother liquor according to claim 1 or 2 or 3,
It is characterized in that, the top of the tank body is equipped with thermometer（19）.
6. a kind of sedimentation device efficiently separating lithium hexafluoro phosphate semi-finished product and mother liquor according to claim 1 or 2 or 3,
It is characterized in that, the mixing part is by two panels rotating vane（24）It is composed of a fixed connection, the connection of shaft and two panels rotating vane
Point is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820041096.XU CN207886731U (en) | 2018-01-10 | 2018-01-10 | A kind of sedimentation device efficiently separating lithium hexafluoro phosphate semi-finished product and mother liquor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820041096.XU CN207886731U (en) | 2018-01-10 | 2018-01-10 | A kind of sedimentation device efficiently separating lithium hexafluoro phosphate semi-finished product and mother liquor |
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| CN207886731U true CN207886731U (en) | 2018-09-21 |
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| CN201820041096.XU Active CN207886731U (en) | 2018-01-10 | 2018-01-10 | A kind of sedimentation device efficiently separating lithium hexafluoro phosphate semi-finished product and mother liquor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109731380A (en) * | 2019-01-30 | 2019-05-10 | 深圳市芭田生态工程股份有限公司 | A kind of slurry filtering device, slurry filtration method |
| CN109911852A (en) * | 2019-03-14 | 2019-06-21 | 青海聚之源新材料有限公司 | A kind of waste liquor recyclable device when preparing lithium hexafluoro phosphate and its recovery method |
| CN110772830A (en) * | 2019-11-11 | 2020-02-11 | 衡阳凯美科化工有限公司 | Cold crystallizer for chemical production |
| CN110975320A (en) * | 2019-12-31 | 2020-04-10 | 昆明弘承商贸有限公司 | Freezing and concentrating device for solution with barrel-shaped structure and using method thereof |
| CN110981922A (en) * | 2019-12-17 | 2020-04-10 | 安徽赛诺制药有限公司 | Preparation method of sucrose octasulfonate potassium |
| CN117225261A (en) * | 2023-11-10 | 2023-12-15 | 河北华晨药业集团有限公司 | Sodium carbonate slurry tank |
-
2018
- 2018-01-10 CN CN201820041096.XU patent/CN207886731U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109731380A (en) * | 2019-01-30 | 2019-05-10 | 深圳市芭田生态工程股份有限公司 | A kind of slurry filtering device, slurry filtration method |
| CN109911852A (en) * | 2019-03-14 | 2019-06-21 | 青海聚之源新材料有限公司 | A kind of waste liquor recyclable device when preparing lithium hexafluoro phosphate and its recovery method |
| CN109911852B (en) * | 2019-03-14 | 2023-08-04 | 青海聚之源新材料有限公司 | Waste mother liquor recycling device and recycling method for lithium hexafluorophosphate preparation |
| CN110772830A (en) * | 2019-11-11 | 2020-02-11 | 衡阳凯美科化工有限公司 | Cold crystallizer for chemical production |
| CN110981922A (en) * | 2019-12-17 | 2020-04-10 | 安徽赛诺制药有限公司 | Preparation method of sucrose octasulfonate potassium |
| CN110975320A (en) * | 2019-12-31 | 2020-04-10 | 昆明弘承商贸有限公司 | Freezing and concentrating device for solution with barrel-shaped structure and using method thereof |
| CN110975320B (en) * | 2019-12-31 | 2023-06-13 | 昆明弘承食品科技有限公司 | Freezing concentration device for solution with barrel-shaped structure and use method thereof |
| CN117225261A (en) * | 2023-11-10 | 2023-12-15 | 河北华晨药业集团有限公司 | Sodium carbonate slurry tank |
| CN117225261B (en) * | 2023-11-10 | 2024-02-20 | 河北华晨药业集团有限公司 | Sodium carbonate slurry tank |
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