CN213468508U - Multi-stage automatic particle classification equipment - Google Patents
Multi-stage automatic particle classification equipment Download PDFInfo
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- CN213468508U CN213468508U CN202021206555.9U CN202021206555U CN213468508U CN 213468508 U CN213468508 U CN 213468508U CN 202021206555 U CN202021206555 U CN 202021206555U CN 213468508 U CN213468508 U CN 213468508U
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Abstract
The application discloses multistage automatic particle classification equipment, including the equipment body, the equipment body includes: the feeding notch is positioned at the top of the equipment body; the supporting legs are positioned at the bottom of the equipment body; the annular positioning rings are arranged on the inner wall of the equipment body; the sieve plates are clamped in the annular positioning ring and comprise a plurality of sieve holes, and the aperture of one side, close to the ground, of each sieve hole is larger than the aperture of the first side, far away from the ground, of each sieve hole; the rotating shaft is positioned in the equipment body and penetrates through the sieve plate, and the plurality of separating rods are positioned on the rotating shaft and are alternately arranged with the sieve plate; the plurality of vent holes are positioned on the side wall of the equipment body; a plurality of vent plugs which are in one-to-one correspondence with the vent holes and are clamped in the vent holes; a plurality of discharging pipes are located the inner wall of equipment body, the utility model discloses set up the aperture that the sieve mesh is close to ground one side and be greater than the first side aperture in ground is kept away from to the sieve mesh, can prevent effectively that the unshaped refractory material card from in the sieve mesh, is favorable to improving unshaped refractory material's production quality and efficiency.
Description
Technical Field
The utility model relates to a refractory material equipment technical field. The utility model discloses a multistage automatic particle classification equipment.
Background
The unshaped refractory material is a refractory material which is composed of reasonably graded particles, powdery material and binding agent and can be directly used without forming and firing, and can be made into slurry, paste and loose, also called loose refractory material. Compared with refractory bricks, the refractory bricks have the characteristics of simple process, short production period, low heat energy consumption, energy conservation, low cost, convenience for mechanized construction, strong adaptability, good comprehensive use effect and the like. The variety is various, and the method is widely applied to kilns and thermal equipment in various fields. On an unshaped refractory production line, due to different particle sizes of unshaped refractory materials, the materials need to be classified and screened. At present, the equipment for screening the unshaped refractory materials in the prior art is complicated in operation, and the influence of the unshaped refractory materials clamped in the filter screen on the filtering effect on the production quality and efficiency of the unshaped refractory materials is not considered.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a multistage automatic particle classification equipment, easy operation can avoid the blockage of unformed refractory material to live the sieve mesh through setting up the different sizes of surface about the sieve mesh simultaneously to still blow through the air vent and carry out the secondary clean to the sieve mesh, be favorable to improving the production quality and the efficiency of unformed refractory material.
The technical scheme is as follows: a multi-stage automatic particle classification apparatus includes an apparatus body;
the equipment body is the cavity structure, and the equipment body includes:
the feeding notch is positioned at the top of the equipment body;
the supporting legs are positioned at the bottom of the equipment body;
the annular positioning rings are sequentially arranged on the inner wall of the equipment body along the direction vertical to the ground;
the edge of the sieve plate is clamped in the annular positioning ring, the sieve plate comprises a plurality of sieve holes, the orthographic projection of the sieve holes on the ground is circular, and the aperture of one side, close to the ground, of each sieve hole is larger than the aperture of the first side, far away from the ground, of each sieve hole;
the rotating shaft is positioned in the equipment body and penetrates through the sieve plate, and the center line of the rotating shaft is overlapped with the center line of the equipment body;
the separation rods are positioned on the rotating shaft and are arranged alternately with the sieve plates along the direction vertical to the ground;
the plurality of vent holes are positioned on the side wall of the equipment body and positioned on one side of the sieve plate close to the ground;
the plurality of vent plugs correspond to the vent holes one by one and are clamped in the vent holes;
and the discharging pipes are positioned on the inner wall of the equipment body and correspond to the sieve plates one to one.
Preferably, the sieve plates sequentially comprise a first sieve plate, a second sieve plate and a third sieve plate along the direction that the top of the equipment body points to the ground;
wherein, the aperture of the side of the sieve pore on the first sieve plate far away from the ground is a, the aperture of the side of the sieve pore on the second sieve plate far away from the ground is b, the aperture of the side of the sieve pore on the third sieve plate far away from the ground is c, and a is more than b and more than c.
Preferably, the separation bar is located on the side of the screen panel remote from the ground.
Preferably, the separation rod includes a plurality of struts, and one end of each strut is welded to the rotation shaft.
Preferably, the strut is angled with respect to the centre line of the axis of rotation in a direction perpendicular to the ground.
Preferably, the apparatus body further includes: and an outlet located at the bottom of the device body.
Preferably, the apparatus body further includes: the motor is located on one side, close to the ground, of the bottom of the equipment body and matched with the rotating shaft.
Preferably, the centre line of the feed slot coincides with the centre line of the apparatus body.
Preferably, the side of the annular collar facing away from the ground is at the same level as the side of the tapping pipe facing away from the ground.
Compared with the prior art, the utility model provides a multistage automatic particle grading equipment has following beneficial effect:
1. the utility model provides a multistage automatic particle classification equipment, simple structure, convenient operation need not manual operation and realizes the full automatization, can effectual improvement unshaped refractory material production quality and efficiency.
2. The utility model provides a multistage automatic particle classification equipment sets up the aperture difference of surface about the sieve mesh in the sieve, sets up the aperture that the sieve mesh is close to ground one side and is greater than the first side aperture in ground is kept away from to the sieve mesh, can prevent effectively that unshaped refractory material card from in the sieve mesh, is favorable to improving unshaped refractory material's production quality and efficiency.
3. The utility model provides a multistage automatic particle classification equipment sets up the air vent on the equipment body lateral wall, can utilize the air vent to provide strong wind in multistage automatic particle classification equipment at multistage automatic particle classification equipment stop work, can clean the sieve, prevents that unformed refractory material from in the sieve mesh, is favorable to improving unformed refractory material's production quality and efficiency.
Drawings
The accompanying drawings, which form a part of the disclosure, are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this disclosure. In the drawings:
fig. 1 is a schematic structural diagram of a multi-stage automatic particle classifying apparatus provided by the present invention;
FIG. 2 is a schematic structural diagram of another multi-stage automatic particle classifying apparatus provided by the present invention;
FIG. 3 is a top view of G of FIG. 2;
wherein, 1 is the apparatus body, 2 is the feed slot mouth, 3 is the supporting leg, 4 is the annular locating ring, 5 is the sieve, 6 is the sieve mesh, 7 is the axis of rotation, 8 is the separator bar, 9 is the air vent, 10 is the air plug, 11 is the discharging pipe, 12 is the takeout port, 13 is the motor, 51 is the first sieve, 52 is the second sieve, 53 is the third sieve, 81 is the branch, 100 is the multistage automatic particle classification equipment, O is the central line of silo mouth 2, O 'is the central line of apparatus body 1, a is the aperture of sieve mesh 6 on the first sieve 51 far from the ground side, a' is the aperture of sieve mesh 6 on the first sieve 51 near the ground side, b is the aperture of sieve mesh 6 on the second sieve 52 far from the ground side, c is the aperture of sieve mesh 6 on the third sieve 53 far from the ground side.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be noted that the described embodiments are only some embodiments, but not all embodiments, of the present invention and are merely illustrative in nature and in no way intended to limit the present invention, its application, or uses. The protection scope of the present application shall be subject to the definitions of the appended claims.
Example 1:
fig. 1 is a schematic structural diagram of a multistage automatic particle classifying apparatus provided by the present invention, and the following is shown in fig. 1 to illustrate a specific embodiment of the present invention. A multi-stage automatic particle classification apparatus 100 comprising: an apparatus body 1; equipment body 1 is the cavity structure, and equipment body 1 includes: the feed slot 2 is positioned at the top of the equipment body 1; the supporting legs 3 are positioned at the bottom of the equipment body 1; the annular positioning rings 4 are sequentially arranged on the inner wall of the equipment body 1 along the direction vertical to the ground; the sieve plates 5 are clamped in the annular positioning ring 4, the sieve plates 5 comprise a plurality of sieve holes 6, the orthographic projection of the sieve holes 6 on the ground is circular, and the aperture of one side, close to the ground, of each sieve hole 6 is larger than that of the first side, far away from the ground, of each sieve hole 6; a rotating shaft 7 which is positioned inside the equipment body 1 and penetrates through the sieve plate 5, and the center line of the rotating shaft 7 is overlapped with the center line of the equipment body 1; a plurality of separating rods 8 which are positioned on the rotating shaft 7 and are arranged alternately with the sieve plates 5 along the direction X vertical to the ground; the plurality of vent holes 9 are positioned on the side wall of the equipment body 1 and on one side of the sieve plate 5 close to the ground; a plurality of vent plugs 10, which correspond to the vent holes 9 one by one and are clamped in the vent holes 9; and the discharge pipes 11 are positioned on the inner wall of the equipment body 1 and correspond to the sieve plates 5 one by one.
It can be understood that sieve 5 in the multistage automatic particle classification equipment 100 that this embodiment provided includes a plurality of sieve meshes 6, it is greater than the first side aperture in ground to set up the aperture that sieve mesh 6 is close to ground one side and keep away from the first side aperture in ground, refer to fig. 1, take sieve mesh 6 in the sieve 5 that is closest to equipment body 1 top as an example, sieve mesh 6 keeps away from the aperture a of ground one side and is less than sieve mesh 6 and is close to the first side aperture a 'in ground, and then when filtering amorphous refractory material through sieve 5, can prevent amorphous refractory material card in the sieve mesh, it is circular to further set up the orthographic projection of sieve mesh 6 on ground, be favorable to improving amorphous refractory material's production quality and efficiency. Meanwhile, the multi-stage automatic particle classifying apparatus 100 provided in the present embodiment is further provided with a plurality of vent holes 9 and vent plugs 10, when the multistage automatic particle classification equipment 100 works, the vent plug 10 can be clamped in the vent hole 9, the sealing performance of the equipment body 1 is ensured, the splashing of the unshaped refractory material is prevented, when the multi-stage automatic particle classifying apparatus 100 is turned off, a large-sized blower may be used, strong wind is supplied into the apparatus body 1 through the ventilation holes, and the vent holes 9 are arranged to have a certain angle with the direction X vertical to the ground, so that strong wind conveyed by the vent holes 9 can be more accurately aligned to the sieve holes 6 in the sieve plate 5, and then can clean sieve 5, remove the unshaped refractory material of card in sieve mesh 6, prevent that unshaped refractory material from blockking up sieve mesh 6, and then can be favorable to improving unshaped refractory material's production quality and efficiency.
Example 2
With continued reference to FIG. 1, yet another embodiment of the multi-stage automatic particle classification apparatus of the present invention is illustrated. A multi-stage automatic particle classifying apparatus 100 includes an apparatus body 1; equipment body 1 is the cavity structure, and equipment body 1 includes: the feed slot 2 is positioned at the top of the equipment body 1; the supporting legs 3 are positioned at the bottom of the equipment body 1; the annular positioning rings 4 are sequentially arranged on the inner wall of the equipment body 1 along the direction vertical to the ground; the sieve plates 5 are clamped in the annular positioning ring 4, the sieve plates 5 comprise a plurality of sieve holes 6, the orthographic projection of the sieve holes 6 on the ground is circular, and the aperture of one side, close to the ground, of each sieve hole 6 is larger than that of the first side, far away from the ground, of each sieve hole 6; a rotating shaft 7 which is positioned inside the equipment body 1 and penetrates through the sieve plate 5, and the center line of the rotating shaft 7 is overlapped with the center line of the equipment body 1; a plurality of separating rods 8 which are positioned on the rotating shaft 7 and are arranged alternately with the sieve plates 5 along the direction X vertical to the ground; the plurality of vent holes 9 are positioned on the side wall of the equipment body 1 and on one side of the sieve plate 5 close to the ground; a plurality of vent plugs 10, which correspond to the vent holes 9 one by one and are clamped in the vent holes 9; and the discharge pipes 11 are positioned on the inner wall of the equipment body 1 and correspond to the sieve plates 5 one by one. Optionally, in a direction in which the top of the apparatus body 1 is directed to the ground, the screening deck 5 includes a first screening deck 51, a second screening deck 52 and a third screening deck 53 in sequence; the aperture of the side of the first sieve plate 51 far from the ground is a, the aperture of the side of the second sieve plate 52 far from the ground is b, the aperture of the side of the third sieve plate 53 far from the ground is c, and a is more than b and more than c.
It can be understood that, can include a plurality of sieve plates 5 among the multistage automatic particle classification equipment 100 that this embodiment provided, along the top of equipment body 1 on the direction of pointing to ground, the aperture of the sieve 6 in the sieve plate 5 reduces in proper order, can filter indeterminate form refractory material in proper order according to the size in aperture, and then obtains the indeterminate form refractory material of corresponding size, takes out through discharging pipe 11, realizes that multistage automatic particle classification equipment 100 grades indeterminate form refractory material.
Continuing to refer to fig. 1 and showing only that equipment body 1 includes the condition of three sieve 5 in fig. 1, the utility model discloses do not carry out specific restriction to the number of sieve 5, can be according to actual need's the not stereotyped refractory material's the hierarchical condition specifically sets up, do not restrict simultaneously to the concrete data in sieve 6's aperture in sieve 5 yet, only need guarantee along equipment body 1 in the direction on the directional ground in top, sieve 6's in sieve 5 aperture reduce in proper order can, guarantee promptly that the aperture of sieve 6 upper surface in sieve 5 reduces in proper order can, the specific condition of setting all can set up according to actual conditions, no longer repeated below. Simultaneously the utility model discloses the aperture of well injecing the upper surface of same sieve mesh 6 is less than the aperture of lower surface, and the aperture of sieve mesh 6 does not have specific requirement in concrete each sieve 5, and the aperture that can set up first sieve 51 sieve mesh 6 lower surface is less than the aperture of second sieve 52 sieve mesh 6 lower surface, also can set up the aperture that first sieve 51 sieve mesh 6 lower surface and be greater than the aperture of second sieve 52 sieve mesh 6 lower surface, and the aperture size of 6 lower surfaces of specific different sieve meshes can set up according to specific actual conditions, and the following is no longer repeated.
Example 3
Fig. 2 is a schematic structural diagram of another multi-stage automatic particle classifying apparatus provided by the present invention, and fig. 3 is a top view of G in fig. 2, which is shown in fig. 2 and fig. 3 to illustrate another embodiment of the multi-stage automatic particle classifying apparatus of the present invention. A multi-stage automatic particle classifying apparatus 100 includes an apparatus body 1; equipment body 1 is the cavity structure, and equipment body 1 includes: the feed slot 2 is positioned at the top of the equipment body 1; the supporting legs 3 are positioned at the bottom of the equipment body 1; the annular positioning rings 4 are sequentially arranged on the inner wall of the equipment body 1 along the direction vertical to the ground; the sieve plates 5 are clamped in the annular positioning ring 4, the sieve plates 5 comprise a plurality of sieve holes 6, the orthographic projection of the sieve holes 6 on the ground is circular, and the aperture of one side, close to the ground, of each sieve hole 6 is larger than that of the first side, far away from the ground, of each sieve hole 6; a rotating shaft 7 which is positioned inside the equipment body 1 and penetrates through the sieve plate 5, and the center line of the rotating shaft 7 is overlapped with the center line of the equipment body 1; a plurality of separating rods 8 which are positioned on the rotating shaft 7 and are arranged alternately with the sieve plates 5 along the direction X vertical to the ground; the plurality of vent holes 9 are positioned on the side wall of the equipment body 1 and on one side of the sieve plate 5 close to the ground; a plurality of vent plugs 10, which correspond to the vent holes 9 one by one and are clamped in the vent holes 9; and the discharge pipes 11 are positioned on the inner wall of the equipment body 1 and correspond to the sieve plates 5 one by one.
Optionally, in a direction in which the top of the apparatus body 1 is directed to the ground, the screening deck 5 includes a first screening deck 51, a second screening deck 52 and a third screening deck 53 in sequence; the aperture of the side of the first sieve plate 51 far from the ground is a, the aperture of the side of the second sieve plate 52 far from the ground is b, the aperture of the side of the third sieve plate 53 far from the ground is c, and a is more than b and more than c.
Optionally, the separator bar 8 is located the one side that sieve 5 kept away from ground, be about to separator bar 8 setting in the top of sieve 5, when unformed refractory material passes through feed notch 2 and gets into equipment body 1, utilize separator bar 8 to break up unformed refractory material earlier, and then make the even distribution of unformed refractory material on sieve 5, be favorable to utilizing sieve 5 to carry out classification operation to unformed refractory material, improve multistage automatic particle classification equipment 100's work efficiency.
Optionally, the separation rod 8 includes a plurality of support rods 81, and one end of each support rod 81 is welded to the rotation shaft 7. The separation rod 8 can include a plurality of branch 81, and branch 81 can evenly set up around axis of rotation 7, can be more abundant break up unshaped refractory material, and then make the even distribution of unshaped refractory material on sieve 5, be favorable to utilizing sieve 5 to carry out classification operation to unshaped refractory material, improves multistage automatic particle classification equipment 100's work efficiency. Continuing to refer to fig. 2, fig. 2 only shows that the separation rod 8 includes 4 branch 81, the utility model discloses do not do specific requirements to the specific quantity of branch 81, can set up according to actual conditions, the following is not being repeated.
Alternatively, with continued reference to fig. 3, the strut 81 is angled from the centerline of the rotating shaft 7 in a direction perpendicular to the ground. Set up branch 81 slope, design refractory material can be broken up to sieve 5 along with branch 81's inclination, can be more even gentle with the even distribution of indefinite form refractory material on sieve 5, be favorable to utilizing sieve 5 to carry out classification operation to indefinite form refractory material, improve multistage automatic particle classification equipment 100's work efficiency.
Optionally, the apparatus body 1 further includes: an outlet 12, the outlet 12 being located at the bottom of the device main body 1. The unshaped refractory passing through the sieve plate 5 closest to the ground can be taken out through the taking-out port 12, and the unshaped refractory at the lowest layer of the equipment body is emptied, so that the accumulation is prevented and the subsequent work of the multistage automatic particle classification equipment 100 is further influenced. Of course, the apparatus further includes a plug 14 corresponding to the outlet 12 and capable of being engaged with the outlet 12 to ensure the airtightness of the multistage automatic grain classifying apparatus 100 for classifying shaped refractories during operation.
Optionally, the apparatus body 1 further includes: and the motor 13 is positioned on one side of the bottom of the equipment body 1 close to the ground, and is matched with the rotating shaft 7. Motor 13 sets up in the bottom of equipment body 1, and motor 13's height should be less than the height of supporting leg 3 simultaneously, can make motor 13 and ground have certain distance, is favorable to motor 13 to dispel the heat when working for a long time, improves motor 13's service life. Meanwhile, the motor 13 is utilized to drive the rotating shaft 7 to rotate, and then the separating rod 8 is driven to rotate to scatter the unshaped refractory materials to the sieve plate 5.
Optionally, the central line O of feed chute opening 2 coincides with the central line O' of equipment body 1, and then the unshaped refractory material can be in central point department gets into equipment body 1, is favorable to using the separator bar 8 to disperse it, can not lead to the unshaped refractory material to be located and concentrate on some place and block up the sieve mesh on sieve 5, influences follow-up operation.
Optionally, one side of annular position circle 4 that keeps away from ground and one side that discharging pipe 11 is close to ground are located same horizontal plane, and the unshaped refractory material drops to its corresponding sieve through 5 layers of sieve boards of difference on, and one side that sets up annular position circle 4 that keeps away from ground and discharging pipe 11 are close to one side on ground are located same horizontal plane, can be favorable to taking out unshaped refractory material through discharging pipe 11.
According to the above embodiment, the beneficial effects of the utility model are that:
1. the utility model provides a multistage automatic particle classification equipment, simple structure, convenient operation need not manual operation and realizes the full automatization, can effectual improvement unshaped refractory material production quality and efficiency.
2. The utility model provides a multistage automatic particle classification equipment sets up the aperture difference of surface about the sieve mesh in the sieve, sets up the aperture that the sieve mesh is close to ground one side and is greater than the first side aperture in ground is kept away from to the sieve mesh, can prevent effectively that unshaped refractory material card from in the sieve mesh, is favorable to improving unshaped refractory material's production quality and efficiency.
3. The utility model provides a multistage automatic particle classification equipment sets up the air vent on the equipment body lateral wall, can utilize the air vent to provide strong wind in multistage automatic particle classification equipment at multistage automatic particle classification equipment stop work, can clean the sieve, prevents that unformed refractory material from in the sieve mesh, is favorable to improving unformed refractory material's production quality and efficiency.
While certain embodiments of the invention have been described in detail by way of example and with reference to the accompanying drawings and examples, it is to be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The scope of the invention is defined by the appended claims.
Claims (9)
1. A multi-stage automatic particle classification apparatus, comprising an apparatus body;
the equipment body is the cavity structure, the equipment body includes:
a feed slot positioned at the top of the apparatus body;
the supporting legs are positioned at the bottom of the equipment body;
the annular positioning rings are sequentially arranged on the inner wall of the equipment body along the direction vertical to the ground;
the edges of the sieve plates are clamped in the annular positioning ring, the sieve plates comprise a plurality of sieve holes, the orthographic projection of the sieve holes on the ground is circular, and the aperture of one side, close to the ground, of each sieve hole is larger than that of the first side, far away from the ground, of each sieve hole;
the rotating shaft is positioned in the equipment body and penetrates through the sieve plate, and the center line of the rotating shaft is overlapped with the center line of the equipment body;
the separation rods are positioned on the rotating shaft, and are arranged alternately with the sieve plates along the direction vertical to the ground;
the plurality of vent holes are positioned on the side wall of the equipment body and positioned on one side of the sieve plate close to the ground;
the plurality of vent plugs correspond to the vent holes one by one and are clamped in the vent holes;
and the discharging pipes are positioned on the inner wall of the equipment body and correspond to the sieve plates one to one.
2. The multi-stage automatic particle classifying apparatus according to claim 1, wherein the sieve plates include a first sieve plate, a second sieve plate and a third sieve plate in this order in a direction in which the top of the apparatus body is directed to the ground;
the diameter of the side, far away from the ground, of each sieve pore on the first sieve plate is a, the diameter of the side, far away from the ground, of each sieve pore on the second sieve plate is b, the diameter of the side, far away from the ground, of each sieve pore on the third sieve plate is c, and a is larger than b and larger than c.
3. The multi-stage automatic particle sizing apparatus according to claim 1 wherein the separator bar is located on a side of the screen deck remote from the ground.
4. The multi-stage automatic particle sorting apparatus of claim 1, wherein said separating rod comprises a plurality of struts, each of which has one end welded to said rotating shaft.
5. The multi-stage automatic particle sorting apparatus of claim 4, wherein the struts are angled from a centerline of the rotating shaft in a direction perpendicular to the ground.
6. The multi-stage automatic particle grading apparatus of claim 1, wherein said apparatus body further comprises: an outlet port located at a bottom of the device body.
7. The multi-stage automatic particle grading apparatus of claim 1, wherein said apparatus body further comprises: the motor is located on one side, close to the ground, of the bottom of the equipment body, and is matched with the rotating shaft.
8. The multi-stage automatic particle sizing apparatus according to claim 1 wherein the centerline of the feed slot coincides with the centerline of the apparatus body.
9. The multi-stage automatic particle sizing apparatus according to claim 1 wherein the side of the annular retaining ring remote from the ground is at the same level as the side of the tapping pipe near the ground.
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| CN202021206555.9U CN213468508U (en) | 2020-06-24 | 2020-06-24 | Multi-stage automatic particle classification equipment |
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| CN202021206555.9U CN213468508U (en) | 2020-06-24 | 2020-06-24 | Multi-stage automatic particle classification equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113798160A (en) * | 2021-10-29 | 2021-12-17 | 湖南正业科技有限公司 | Raw material screening device for lithium ion battery processing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113798160A (en) * | 2021-10-29 | 2021-12-17 | 湖南正业科技有限公司 | Raw material screening device for lithium ion battery processing |
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