Crystallizer for lithium hydroxide purification product

A technology of lithium hydroxide and crystallizer, which is applied in the direction of lithium oxide;/hydroxide, solution crystallization, heat exchange cooling crystallization, etc., can solve problems affecting crystallization quality, troublesome manual cleaning, crystallization quality impact, etc., to achieve guaranteed Uniformity, increase crystallization effect, avoid adhesion effect

Inactive Publication Date: 2020-05-19

浙江华美新能源科技有限公司

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AI-Extracted Technical Summary

Problems solved by technology

[0003] The existing crystallizers are often heated directly by installing a heating device outside the container, and the internal position used to accept the crystallization may not be able to conduct heat well, resulting ...

Method used

Wherein, sealing plug 5 is slidably connected with rotating rod 3 by control mechanism, and control mechanism comprises the through hole that runs through and is arranged on rotating rod 3, and sliding rod 14 is provided with matching sliding in the through hole, and the lower end of sliding rod 14 extends to shell Inside the body 1 and fixedly connected with the sealing plug 5, the upper end of the sliding rod 14 extends out of the through hole and is fixedly connected with the rotating handle 15 coaxially, a limit spring 16 is arranged between the rotating handle 15 and the rotating rod 3, and 16 sets of limit springs Located on the slide bar 14, the limit spring 16 provides elastic force to play a limiting role. When the crystal is not exported, the sealing plug 5 closes the leakage port. A helical blade 17 is arranged between the rotating rod 3 and the sealing plug 5. The fixed sleeve is arranged on the slide rod 14, which can be rotated to play the role of material guide. The upper end surface of the sealing plug 5 is tapered upw...

Abstract

The invention discloses a crystallizer for a lithium hydroxide purification product. The crystallizer comprises a shell provided with a support frame, wherein a crystallization plate is arranged in the shell; the section of the crystallization plate is in a downward cone shape; a leakage port is formed in the center of the crystallization plate; a cavity is formed in the inner wall of the shell; asecond cavity communicating with a first cavity is formed in the crystallization plate; the first cavity and the second cavity are both filled with water; a heating mechanism for heating the water inthe first cavity and the second cavity is arranged on the shell; a rotating rod is arranged in the shell in a rotating manner; a plurality of stirring rods are fixedly connected to the periphery of the rotating rod; a driving mechanism for driving the rotating rod to rotate is arranged on the shell; and a cleaning and scraping structure is arranged in the shell. The crystallizer of the inventionis reasonable in structure; crystal substances can be conveniently guided out after crystallization, and the phenomena of adhesion and blockage are avoided; and heating effect is stable, so a temperature is constant, and crystallization effect is guaranteed.

Application Domain

Solution crystallizationHeat exchange cooling cystallization +1

Technology Topic

PhysicsHeating effect +5

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Examples

Experimental program(1)

Example Embodiment

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0022] refer to Figure 1-3 , a lithium hydroxide crystallizer for purified products, including a housing 1 equipped with a support frame 18, a crystallization plate 2 is arranged in the housing 1 for accepting crystallization, the cross section of the crystallization plate 2 is downwardly conical, crystallization The center of the plate 2 is provided with a leakage port, which is convenient for exporting crystallization. The inner wall of the housing 1 is provided with a cavity, and the crystallization plate 2 is provided with a second cavity connected to the first cavity. Both the first cavity and the second cavity are It is filled with water and heated by a water bath to ensure uniform heating. At the same time, the heat transfer on the crystallization plate 2 is relatively uniform. The shell 1 is provided with a heating mechanism for heating the water in the first cavity and the second cavity.

[0023] Among them, the heating mechanism includes a plurality of electric heating tubes 8 uniformly surrounding and fixed on the lower end surface of the shell 1, and the multiple electric heating tubes 8 all penetrate the shell 1 and extend into the first cavity. To generate heat, a rotating rod 3 is installed in the housing 1, and a plurality of stirring rods 4 are fixedly connected around the rotating rod 3. The rotation of the plurality of stirring rods 4 can play a stirring role, and the housing 1 is provided with a drive rotating rod 3 to rotate The drive mechanism includes a drive motor 9 fixedly installed on the upper surface of the housing 1, the upper end of the rotating rod 3 extends to the outside of the housing 1 and is fixedly sleeved with a driven bevel gear 10, and the output end of the drive motor 9 is fixedly connected coaxially There is a driving bevel gear 11, and the driving bevel gear 11 and the driven bevel gear 10 are engaged and connected, and the driving motor 9 can drive the rotating rod 3 to rotate.

[0024] Wherein, the housing 1 is provided with a cleaning structure, and the cleaning structure includes wall scraping plates 12 symmetrically arranged on both sides of the rotating rod 3, the two wall scraping plates 12 are against the inner wall of the housing 1, and the two wall scraping plates 12 They are respectively fixedly connected with a plurality of stirring rods 4, and two sides of the rotating rod 3 are symmetrically provided with two scraping bottom plates 13, and the two scraping bottom plates 13 are fixedly connected with the rotating rod 3 through inverted L-shaped bars, and when the rotating rod 3 rotates, it can The inner wall and the crystallization plate 2 are cleaned and scraped to avoid adhesion, and a sealing plug 5 is matched in the leakage opening to play a sealing role.

[0025] Wherein, the sealing plug 5 is slidably connected with the rotating rod 3 through a control mechanism, the control mechanism includes a through hole provided on the rotating rod 3, and a sliding rod 14 is provided for matching and sliding in the through hole, and the lower end of the sliding rod 14 extends into the housing 1 And it is fixedly connected with the sealing plug 5, the upper end of the sliding rod 14 extends to the outside of the through hole and is fixedly connected with the rotating handle 15 coaxially, a limit spring 16 is arranged between the rotating handle 15 and the rotating rod 3, and the limit spring 16 is sleeved on the slide On the rod 14, the limit spring 16 provides elastic force to play a limiting role. When the crystal is not exported, the sealing plug 5 seals the leakage port. On the slide rod 14, it can be rotated to play the role of material guide. The upper end surface of the sealing plug 5 is tapered upwards to reduce adhesion. The upper end surface of the housing 1 is fixed with a liquid inlet pipe 6 and an evaporation outlet 7 for introducing the raw liquid. and export gas.

[0026] In the present invention, when using the device, a plurality of electric heating tubes 8 are used to heat the water in the first cavity and the second cavity, the temperature is heated and maintained at 60-80 degrees Celsius, and then the water is heated through the liquid inlet tube 6 Import the raw materials, and turn on the drive motor 9, the drive motor 9 drives the driving bevel gear 11 to rotate, drives the driven bevel gear 10 to rotate, thereby drives the rotating rod 3 to rotate, makes a plurality of stirring rods 4 rotate for stirring, and increases the crystallization efficiency, During this process, the wall scraper 12 and the bottom scraper 13 scrape the inner wall and the crystallization plate 2 to avoid adhesion, and when it is necessary to export the crystallization, press the handle 15 downward to make the sealing plug 5 move downward and out of the leakage port , turning the rotating handle 15 drives the screw blade 17 to rotate, which plays a leading role and leads the crystals out.

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