Discharging auxiliary equipment of centrifugal machine

Abstract

The utility model relates to a centrifugal machine discharging auxiliary device which comprises a shell, a feeding device, a discharging device, a discharging device and a discharging device, the shell comprises an inner shell body and an outer shell body, the inner shell body is sleeved with the outer shell body, a feeding channel is formed in the inner shell body, and an air feeding channel is formed between the inner shell body and the outer shell body; the first air vent is formed in the inner shell; the second ventilation opening is formed in the outer shell; the first air vent is communicated with the second air vent through the air supply channel; and the separating device is arranged in the feeding channel and comprises a separating assembly, and the first ventilation opening is adjacent to the separating assembly. According to the centrifugal machine discharging auxiliary equipment, by arranging the separating device, materials are separated after entering the feeding channel, by arranging the air supply channel, external air can enter the feeding channel through the air supply channel, and the materials are dried by the external air and then dispersed to be in a small-size state, so that the materials are not prone to splashing.

Description

Technical Field

[0001] The present disclosure relates to the technical field of centrifuge discharging, and in particular to a centrifuge discharging auxiliary device. Background Art

[0002] The precursor of the positive electrode material of lithium-ion batteries needs to be centrifuged in a centrifuge during synthesis. After the precursor slurry is centrifuged, the precursor particles are still attached with moisture, which causes the particles to aggregate into large precursor filter cakes. The large precursor filter cakes will adhere to the inner wall of the centrifuge. After the scraper peels the precursor from the inner wall of the centrifuge, the precursor falls into the turnover box.

[0003] Because the precursor filter cake after centrifugation still has moisture attached to it and has a large volume and weight, it is easy to splash when the precursor filter cake falls into the turnover box. Utility Model Content

[0004] The present disclosure provides a centrifuge discharging auxiliary device to at least solve the above technical problems existing in the prior art.

[0005] The present disclosure provides a centrifuge discharging aid, comprising: a shell, comprising an inner shell and an outer shell, the outer shell is sleeved on the inner shell, the inner shell forms a feeding channel, and an air supply channel is formed between the inner shell and the outer shell; a first air vent is provided on the inner shell; a second air vent is provided on the outer shell; the first air vent is connected with the second air vent through the air supply channel; a separation device is arranged in the feeding channel, comprising a separation component, and the first air vent is adjacent to the separation component.

[0006] In one embodiment, the port diameter at the first end of the feeding channel is larger than the port diameter at the second end.

[0007] In one embodiment, the first end of the feeding channel is used to connect to the discharging device, and the second end is opposite to the first end, and the second end is used to connect to the receiving device; the separation component has multiple layers, and the multiple layers of the separation component are arranged along the direction from the first end to the second end of the feeding channel.

[0008] In one possible implementation manner, the separation assembly comprises a plurality of separation members, and the plurality of separation members are equidistantly arranged on the inner shell.

[0009] In one possible implementation manner, the separation member is a separation rod, a first end of the separation rod is connected to the inner shell, and a second end faces the center line of the feeding channel.

[0010] In one embodiment, the second ends of the plurality of separation rods are staggered along the direction of the center line of the feeding channel.

[0011] In one possible implementation manner, the separation element is adjacent to at least one first vent.

[0012] In one possible implementation manner, the separation piece forms an angle of 45° to 90° with the inner shell.

[0013] In one embodiment, at least two of the separation members have a length no less than the radius of the feeding channel.

[0014] In one possible implementation, at least one of the separation elements has a length no greater than a radius of the feeding channel.

[0015] The present disclosure provides a centrifuge discharging auxiliary equipment, which can not only separate large pieces of material entering the feeding channel into small pieces of material by setting a separation device, but also reduce the falling speed of the material, prevent the material from splashing and protect the turnover box at the same time; by setting an air supply channel, external air can enter the feeding channel through the air supply channel, and the external air can not only dry the material, but also blow off the material attached to the separation device, so that different batches of materials are not easy to contaminate each other; by setting the shell so that the port diameter of the first end is larger than the port diameter of the second end, the speed at which part of the material falls into the turnover box can be reduced, further preventing the material from splashing and protecting the turnover box at the same time.

[0016] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, in which:

[0018] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0019] Figure 1 A cross-sectional view of a centrifuge discharging auxiliary device according to a first embodiment of the present disclosure is shown;

[0020] Figure 2 A schematic structural diagram of a separation component in a centrifuge discharging auxiliary device according to a first embodiment of the present disclosure is shown;

[0021] Figure 3 A schematic structural diagram of a separation component in a centrifuge discharging auxiliary device according to a second embodiment of the present disclosure is shown.

[0022] Explanation of the numbers in the figure: 1. Shell; 11. Inner shell; 12. Outer shell; 13. Feed channel; 14. Air supply channel; 2. First air vent; 3. Second air vent; 4. Separation component; 41. Separation piece. DETAILED DESCRIPTION

[0023] In order to make the purpose, features, and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0024] like Figure 1 As shown, the present disclosure provides a centrifuge discharging auxiliary device, including: a shell 1, the shell 1 includes an inner shell 11 and an outer shell 12, the outer shell 12 is sleeved on the inner shell 11, and an air supply channel 14 is formed between the outer shell 12 and the outer surface of the inner shell 11.

[0025] The inner shell 11 is provided with a first vent 2 , and the outer shell 12 is provided with a second vent 3 . The number of the second vent 3 may be one or more, and the second vent 3 is used to connect to an air compression device.

[0026] A feeding channel 13 is formed on the inner surface of the inner shell 11 , and the feeding channel 13 is connected to the air supply channel 14 through the first air vent 2 .

[0027] The feeding channel 13 can be a cylindrical structure or the port diameter of the first end is larger than the port diameter of the second end. Preferably, the port diameter of the first end of the feeding channel 13 is larger than the port diameter of the second end, and the first end and the second end are opposite. When in use, the first end of the feeding channel 13 is located above the second end, the first end is connected to the discharging device, and the second end is connected to the receiving device.

[0028] The discharging device is a centrifuge and the receiving device is a turnover box.

[0029] A separation device is provided in the feeding channel 13, and the separation device is used to separate materials, and the materials are precursor filter cakes of lithium-ion battery positive electrode materials.

[0030] After the precursor slurry of the lithium ion positive electrode material is centrifuged in a centrifuge, a precursor filter cake is obtained. The precursor filter cake contains water, and the volume and weight of the precursor filter cake are large. After the precursor filter cake enters the feeding channel 13, under the action of the separation device, the large pieces of precursor filter cake are separated into small pieces of precursor filter cake with smaller volume and weight. The air compression device inputs hot compressed air to the second air vent 3, and the hot compressed air passes through the air delivery channel 14 and enters the feeding channel from the first air vent 2. 13, the separation device breaks up the large pieces of precursor filter cake and evaporates the water in the precursor filter cake. Under the action of the separation device and the hot compressed air, precursor powder and small pieces of precursor filter cake are obtained. Because of their small size and low water content or even no water, and because of the collision with the separation device, the falling speed of the precursor powder and small pieces of precursor filter cake is reduced, so when the precursor powder and small pieces of precursor filter cake fall into the turnover box, it is not easy to splash or damage the turnover box.

[0031] The separation device comprises a separation assembly 4 , which is connected to the inner shell 11 , and the first vent 2 is adjacent to the separation assembly 4 .

[0032] The separation component 4 has multiple layers, and the multiple layers of the separation component 4 are arranged along the direction from the first end to the second end of the feeding channel 13. Each layer of the separation component 4 includes multiple separation parts 41, and the multiple separation parts 41 are equidistantly arranged on the inner shell body 11. In this way, the precursor filter cake will be separated into smaller pieces of precursor filter cake under the action of multiple separation parts.

[0033] The separator 41 is a separator rod, the first end of which is welded to the inner shell 11 and forms an angle of 45° to 90° with the inner shell 11. In one embodiment, the side of the first end of the separator rod facing the feed channel 13 forms an angle of 45° to 90° with the inner shell 11, and the second end of the separator rod faces the center line of the feed channel 13. In another embodiment, multiple separators 41 of each layer are arranged on the same section plane, and the section planes where the multi-layer separation components 4 are located are parallel to each other. The second ends of the multiple separator rods are staggered along the direction of the center line of the feed channel 13, so that the separation effect of the separator rod on the precursor filter cake is enhanced, making the precursor filter cake more dispersed.

[0034] Each separator 41 is adjacent to at least one first vent 2, and at least one first vent 2 is located on one side of the separator 41 facing the first end of the feed channel 13, so as to facilitate hot compressed air to blow off the precursor powder and small pieces of precursor filter cake accumulated on the separator 41.

[0035] In the process of falling in the feeding channel 13, the precursor filter cake is separated by the separator 41. The small pieces of precursor filter cake obtained after separation are more easily evaporated by the hot compressed air. Part of the precursor powder and small pieces of precursor filter cake fall onto the separator 41. The air blown out from the first air vent 2 will blow the precursor powder and small pieces of precursor filter cake off to prevent the accumulation of precursor powder and small pieces of precursor filter cake, so that different batches of precursor filter cakes are not easily contaminated with each other.

[0036] like Figure 2 As shown, in the first embodiment, at least two separation members 41 have a length no less than the radius of the feeding channel 13 .

[0037] In a specific implementation scenario, each layer of the separation component 4 includes four separation elements 41, and the four separation elements 41 are arranged in a ring on the inner shell body 11. The lengths of the four separation elements 41 are all greater than the radius of the feeding channel 13, and the second ends of the four separation elements 41 are staggered along the center line of the feeding channel 13. In this way, the contact probability between the precursor filter cake and the separation elements 41 is increased, making the precursor filter cake easier to separate.

[0038] like Figure 3 As shown, in the second embodiment, the length of at least one separation element 41 is no greater than the radius of the feeding channel 13 .

[0039] In a specific implementation scenario, each layer of separation component 4 includes four separation elements 41. Among the four separation elements 41, the lengths of two separation elements 41 are smaller than the radius of the feeding channel 13, and the lengths of the other two separation elements 41 are larger than the radius of the feeding channel 13. The second ends of the four separation rods form gaps in the radial direction of the feeding channel 13, so that the precursor powder and small pieces of precursor filter cake are not easily accumulated between the two separation rods.

[0040] When the centrifuge discharging auxiliary device provided by the present disclosure is in use, the first end of the feeding channel 13 is buckled with the centrifuge, and the second end of the feeding channel 13 is aligned with the turnover box.

[0041] After the slurry of the precursor of the lithium ion positive electrode material is centrifuged in a centrifuge, a precursor filter cake is obtained. The precursor filter cake contains water, and the volume and weight of the precursor filter cake are large, and it is easy to adhere to the inner wall of the centrifuge. After the scraper scrapes the precursor filter cake, the precursor filter cake enters the feeding channel 13. Under the action of the separation device, the large pieces of precursor filter cake are separated into small pieces of filter cake with smaller volume and weight. The air compression device inputs hot compressed air to the second vent 3. The hot compressed air passes through the air supply channel 14 and enters the feeding channel 13 from the first vent 2. While breaking up, the moisture in the precursor filter cake is evaporated, and under the action of the separation device and hot compressed air, precursor powder and small pieces of precursor filter cake are obtained. The hot compressed air can also blow off the precursor powder or small pieces of precursor filter cake accumulated on the separation rod, so that different batches of precursor filter cakes are not easy to contaminate each other because of their small size and low or even no water content. In addition, due to the collision with the separation device, the falling speed of the precursor powder and small pieces of precursor filter cake is reduced, so the precursor powder and small pieces of precursor filter cake are not easy to splash when falling into the turnover box, nor are they easy to damage the turnover box.

[0042] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of this disclosure can be achieved, and this document is not limited here.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A centrifuge discharging auxiliary device, characterized in that: include: The housing comprises an inner housing and an outer housing, wherein the outer housing is sleeved on the inner housing, a feeding channel is formed on the inner housing, and an air feeding channel is formed between the inner housing and the outer housing; A first vent is provided on the inner shell; A second vent is provided on the outer shell; The first vent is connected to the second vent through the air supply channel; The separation device is arranged in the feeding channel and comprises a separation component, and the first vent is adjacent to the separation component.

2. The device according to claim 1, characterized in that The feeding channel has a port diameter at the first end that is larger than a port diameter at the second end.

3. The device according to claim 1, characterized in that The first end of the feeding channel is used to connect to the discharging device, and the second end is opposite to the first end, and the second end is used to connect to the receiving device; The separation component has multiple layers, and the multiple layers of the separation component are arranged along the direction from the first end to the second end of the feeding channel.

4. The device according to claim 3, characterized in that The separation assembly comprises a plurality of separation members, and the plurality of separation members are equidistantly arranged on the inner shell.

5. The device according to claim 4, characterized in that The separation member is a separation rod, a first end of which is connected to the inner shell, and a second end of which faces the center line of the feeding channel.

6. The device according to claim 5, characterized in that The second ends of the plurality of separation rods are staggered along the direction of the center line of the feeding channel.

7. The device according to claim 4, characterized in that The separation piece is adjacently provided with at least one first vent.

8. The device according to claim 4, characterized in that The separation piece forms an included angle of 45° to 90° with the inner shell.

9. The device according to claim 4, characterized in that The length of at least two of the separation members is not less than the radius of the feeding channel.

10. The device according to claim 4, characterized in that At least one of the separation members has a length no greater than the radius of the feeding channel.

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