High-temperature-resistant crucible for negative electrode material purification

Abstract

The utility model discloses a cathode material purification high-temperature-resistant crucible, and particularly relates to the technical field of crucibles, the cathode material purification high-temperature-resistant crucible comprises a first high-temperature-resistant crucible, a connecting block and a second high-temperature-resistant crucible, and the first high-temperature-resistant crucible is fixedly mounted at the outer edge of the bottom end of the connecting block; the second high-temperature-resistant crucible is fixedly installed at the edge position of the bottom of an inner cavity of the connecting block, a crucible cover is movably arranged in the connecting block and located at the top of the second high-temperature-resistant crucible, a vertical cylinder is fixedly communicated with the center position of the top end of the crucible cover, and an air outlet assembly is arranged on the vertical cylinder and comprises an air pipe, a threaded head and a valve. By opening the valve, gas generated by purification of a negative electrode material can be discharged out of the second high-temperature-resistant crucible through the gas pipe, impurities in the gas are filtered by the filter screen, carbon dioxide and the like in the gas are absorbed and purified by the activated carbon plate, the operation is simple, and the gas generated in the purification process is conveniently discharged; the purity and the performance of the product are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crucibles, and more specifically, to a high-temperature resistant crucible for purifying negative electrode materials. Background Art

[0002] Crucibles used for purifying negative electrode materials are primarily used during high-temperature processing to remove impurities and improve the electrochemical properties of the material. The preparation of negative electrode materials is particularly critical in lithium battery manufacturing, and crucibles play an important role in this process. Currently, some crucibles on the market have poor high-temperature resistance, making them unsafe in high-temperature environments. This can lead to cracking of the crucible at high temperatures, hindering the use of the crucible by workers.

[0003] After searching, the Chinese patent with announcement number CN218197294U discloses a high-temperature resistant composite crucible. This utility model composites an anti-oxidation layer, a reinforcement layer and a heat-resistant layer on the outer wall of the first crucible body to improve the high-temperature resistance of the first crucible body. At the same time, the interior of the second crucible body is protected by the composite of a protective layer and an anti-sticking layer, achieving a high-temperature resistant effect on the first crucible body and the second crucible body, preventing the device from cracking due to high temperature, and facilitating the use of the first crucible body and the second crucible body by the staff.

[0004] When the above-mentioned crucible is in use, the negative electrode material is purified in the crucible, and the movable cover can block the opening on the top surface of the second crucible body to prevent debris from falling into the interior of the second crucible body. However, it is not convenient to discharge the gases generated during the purification process, such as carbon dioxide and sulfide. These gases are redeposited on the negative electrode material, affecting the purity and performance of the product. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a high-temperature resistant crucible for purifying negative electrode materials, aiming to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-temperature resistant crucible for purifying negative electrode materials, comprising a first high-temperature resistant crucible, a connecting block and a second high-temperature resistant crucible, and the first high-temperature resistant crucible is fixedly mounted at the outer edge of the bottom end of the connecting block, and the second high-temperature resistant crucible is fixedly mounted at the bottom edge of the inner cavity of the connecting block, a crucible cover is movably provided inside the connecting block and on the top of the second high-temperature resistant crucible, a vertical cylinder is fixedly connected at the center position of the top end of the crucible cover, an air outlet assembly is provided on the vertical cylinder, the air outlet assembly comprises an air pipe, a threaded head and a valve, the bottom end of the air pipe is fixedly connected to the threaded head, and the threaded head is connected to the internal thread of the vertical cylinder, and the valve is fixedly mounted on the air pipe.

[0007] Furthermore, a first high-temperature resistant gasket is movably provided on the top of the second high-temperature resistant crucible, and the top end of the first high-temperature resistant gasket is in contact with the crucible cover.

[0008] It can be seen that in the above technical solution, the first high-temperature resistant gasket can improve the sealing between the crucible cover and the connecting block.

[0009] Furthermore, a clamping ring is fixedly connected to the bottom end of the crucible cover, and the bottom end of the clamping ring extends into the interior of the second high-temperature resistant crucible.

[0010] It can be seen that in the above technical solution, the clamping ring can limit the crucible cover.

[0011] Furthermore, a filter screen and an activated carbon plate are movably provided inside the vertical cylinder, and the activated carbon plate is located on top of the filter screen.

[0012] It can be seen that in the above technical solution, the exhausted gas is clean gas.

[0013] Furthermore, a second high-temperature resistant gasket is movably provided on the top of the activated carbon plate, and the top end of the second high-temperature resistant gasket is in contact with the thread head.

[0014] It can be seen that in the above technical solution, the second high-temperature resistant gasket can improve the sealing between the vertical cylinder and the threaded head.

[0015] Furthermore, a connecting assembly is provided on the crucible cover, and the connecting assembly includes a screw rod and two threaded sleeves.

[0016] Furthermore, one end of the screw rod passes through the connecting block and the crucible cover, and the two threaded sleeves are movably sleeved on the screw rod.

[0017] Technical effects and advantages of this utility model:

[0018] 1. The utility model opens the valve so that the gas generated by the purification of the negative electrode material can be discharged into the second high-temperature resistant crucible through the air pipe. The filter screen filters the impurities in the gas, and the activated carbon plate absorbs and purifies the carbon dioxide in the gas. The operation is simple and the gas generated in the purification process is convenient to discharge, which greatly improves the purity and performance of the product.

[0019] 2. The utility model releases the fixation between the crucible cover and the connecting block by rotating the threaded sleeve and moving it away from the screw rod, and then moving the screw rod horizontally and moving it away from the connecting block. The crucible cover is taken out and the raw materials are poured into the second high-temperature resistant crucible. The crucible cover is installed and fixed in the same way. The structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0021] Figure 1 Schematic diagram of a circular crucible;

[0022] Figure 2 Schematic diagram of a square crucible;

[0023] Figure 3 It is a schematic diagram of the assembly structure of the first high-temperature resistant crucible and the second high-temperature resistant crucible in a cross-sectional view of the present invention;

[0024] Figure 4 This is a schematic diagram of the assembly structure of the crucible cover and filter screen of the utility model;

[0025] Figure 5 This is a schematic structural diagram of the air outlet component of the present utility model.

[0026] In the figure: 1. first high-temperature resistant crucible; 2. connecting block; 3. connecting assembly; 4. crucible cover; 5. vertical cylinder; 6. gas outlet assembly; 7. second high-temperature resistant crucible; 8. retaining ring; 9. first high-temperature resistant gasket; 10. filter screen; 11. activated carbon plate; 12. second high-temperature resistant gasket; 301. screw rod; 302. threaded sleeve; 601. air pipe; 602. threaded head; 603. valve. DETAILED DESCRIPTION

[0027] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0028] Refer to the instruction manual Figure 1-5The high-temperature resistant crucible for purifying negative electrode materials in this embodiment includes a first high-temperature resistant crucible 1, a connecting block 2 and a second high-temperature resistant crucible 7, and the first high-temperature resistant crucible 1 is fixedly installed at the outer edge of the bottom end of the connecting block 2, and the second high-temperature resistant crucible 7 is fixedly installed at the bottom edge of the inner cavity of the connecting block 2. A crucible cover 4 is movably provided inside the connecting block 2 and on the top of the second high-temperature resistant crucible 7. A vertical cylinder 5 is fixedly connected at the center position of the top of the crucible cover 4, and a gas outlet component 6 is provided on the vertical cylinder 5. The gas outlet component 6 includes an air pipe 601, a threaded head 602 and a valve 603. The bottom end of the air pipe 601 is fixedly connected to the threaded head 602, and the threaded head 602 is threadedly connected to the inner side of the vertical cylinder 5, and the valve 603 is fixedly installed on the air pipe 601.

[0029] Furthermore, a first high-temperature resistant gasket 9 is movably provided on the top of the second high-temperature resistant crucible 7, and the top of the first high-temperature resistant gasket 9 is in contact with the crucible cover 4. The bottom end of the crucible cover 4 is fixedly connected with a retaining ring 8, and the bottom end of the retaining ring 8 extends into the interior of the second high-temperature resistant crucible 7. A connecting assembly 3 is provided on the crucible cover 4, and the connecting assembly 3 includes a screw rod 301 and two threaded sleeves 302. One end of the screw rod 301 passes through the connecting block 2 and the crucible cover 4, and the two threaded sleeves 302 are movably sleeved on the screw rod 301.

[0030] Among them, the threaded sleeve 302 is rotated and moved away from the screw rod 301, and then the screw rod 301 is moved horizontally and moved away from the connecting block 2, so as to release the fixation between the crucible cover 4 and the connecting block 2, the crucible cover 4 is taken out and the raw materials are poured into the second high-temperature resistant crucible 7, and the crucible cover 4 is installed and fixed in the same way. The first high-temperature resistant gasket 9 can improve the sealing between the crucible cover 4 and the connecting block 2, and the retaining ring 8 can limit the crucible cover 4. The structure is simple and easy to use.

[0031] Furthermore, a filter screen 10 and an activated carbon plate 11 are movably provided inside the vertical cylinder 5 , and the activated carbon plate 11 is located on the top of the filter screen 10 , and a second high-temperature resistant gasket 12 is movably provided on the top of the activated carbon plate 11 , and the top end of the second high-temperature resistant gasket 12 is in contact with the threaded head 602 .

[0032] The method of using this embodiment is:

[0033] During use, open valve 603 so that the gas generated by the purification of the negative electrode material can be discharged into the second high-temperature resistant crucible 7 through the air pipe 601. The filter 10 filters the impurities in the gas, and the activated carbon plate 11 absorbs and purifies the carbon dioxide and other substances in the gas so that the discharged gas is clean gas. Rotate the air pipe 601 and make the threaded head 602 away from the vertical cylinder 5. Disassemble and replace the filter 10 and the activated carbon plate 11. Similarly, install the threaded head 602. The operation is simple and convenient to discharge the gas generated during the purification process, which greatly improves the purity and performance of the product. At the same time, the second high-temperature resistant gasket 12 can improve the sealing between the vertical cylinder 5 and the threaded head 602.

[0034] It is worth noting that the instruction manual Figure 1-2 It can be seen that the first high temperature resistant crucible 1, the connecting block 2 and the second high temperature resistant crucible 7 can be round or square, and the outer diameter of the round crucible is 500-650 mm, the wall thickness is 40-60 mm, and the height is 950-1250 mm; the length and width of the square crucible are the same and are 500-650 mm, the wall thickness is 40-60 mm, and the height is 950-1250 mm.

[0035] The contents not described in detail in the specification belong to the existing technology known to those skilled in the art. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-temperature resistant crucible for purifying negative electrode materials, comprising a first high-temperature resistant crucible (1), a connecting block (2), and a second high-temperature resistant crucible (7), wherein the first high-temperature resistant crucible (1) is fixedly mounted at the outer edge of the bottom end of the connecting block (2), and the second high-temperature resistant crucible (7) is fixedly mounted at the bottom edge of the inner cavity of the connecting block (2), characterized in that: A crucible cover (4) is movably provided inside the connecting block (2) and at the top of the second high-temperature resistant crucible (7); a vertical cylinder (5) is fixedly connected at the center position of the top end of the crucible cover (4); a gas outlet assembly (6) is provided on the vertical cylinder (5); the gas outlet assembly (6) comprises an air pipe (601), a threaded head (602) and a valve (603); the bottom end of the air pipe (601) is fixedly connected to the threaded head (602), and the threaded head (602) is connected to the internal thread of the vertical cylinder (5); and the valve (603) is fixedly mounted on the air pipe (601).

2. The high-temperature resistant crucible for purification of negative electrode materials according to claim 1, characterized in that: A first high-temperature resistant gasket (9) is movably provided on the top of the second high-temperature resistant crucible (7), and the top end of the first high-temperature resistant gasket (9) is in contact with the crucible cover (4).

3. The high temperature resistant crucible for purification of negative electrode materials according to claim 1, characterized in that: A clamping ring (8) is fixedly connected to the bottom end of the crucible cover (4), and the bottom end of the clamping ring (8) extends into the interior of the second high-temperature resistant crucible (7).

4. The high temperature resistant crucible for purification of negative electrode materials according to claim 1, characterized in that: A filter screen (10) and an activated carbon plate (11) are movably provided inside the vertical cylinder (5), and the activated carbon plate (11) is located on top of the filter screen (10).

5. The high temperature resistant crucible for purifying negative electrode materials according to claim 4, characterized in that: A second high-temperature resistant gasket (12) is movably provided on the top of the activated carbon plate (11), and the top end of the second high-temperature resistant gasket (12) is in contact with the thread head (602).

6. The high-temperature resistant crucible for purifying negative electrode materials according to claim 1, characterized in that: A connecting assembly (3) is provided on the crucible cover (4), and the connecting assembly (3) comprises a screw rod (301) and two threaded sleeves (302).

7. The high-temperature resistant crucible for purifying negative electrode materials according to claim 6, characterized in that: One end of the screw rod (301) passes through the connecting block (2) and the crucible cover (4), and the two threaded sleeves (302) are movably sleeved on the screw rod (301).

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