Graphitized negative electrode material feeding and screening device

Abstract

The utility model discloses a graphitized cathode material feeding and screening device which comprises a screening body, a feeding port is fixed to the left end of the screening body, a lifting assembly is arranged at the right end of the screening body, a discharging hopper is fixed to the lower end of the screening body, a screening assembly and a smashing assembly are arranged in the screening body, and the screening assembly is located below the smashing assembly. The screening assembly comprises a screening plate and a rotating shaft, the screening plate is fixedly connected with the screening body, the two ends of the rotating shaft are rotationally connected with the screening body, a plurality of fixing rods are symmetrically fixed to the outer wall of the rotating shaft, the rotating shaft rotates to drive a spiral scraper and an anti-blocking scraper to rotate, and materials above the screening plate can be stirred and scraped; materials conforming to the specification are screened out from the screening plate, meanwhile, the materials on the inner wall of the screening plate are scraped off, the screening efficiency is guaranteed, the spring beads correspond to the screening holes in the screening plate, the materials clamped into the screening holes can be ejected out, and the situation that the materials block the screening holes of the screening plate, and then the screening efficiency is affected is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of material feeding and screening, in particular to a device for feeding and screening graphitized negative electrode materials. Background Art

[0002] Lithium battery is a battery that uses lithium metal or lithium alloy as positive / negative electrode material and non-aqueous electrolyte solution. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become mainstream. Traditional lithium battery graphite negative electrode materials usually need to be screened during production and processing.

[0003] The existing screening device may encounter the following problems during use:

[0004] 1. When the traditional screening device screens the graphite negative electrode material, the graphite negative electrode material easily blocks the sieve holes, thereby affecting the screening efficiency, and more graphite negative electrode material will adhere to the sieve, resulting in a waste of resources.

[0005] 2. Materials that do not meet the specifications remain on the screening plate or are discharged separately and processed by other equipment before being screened. A lot of time is wasted in the transfer process, affecting the screening efficiency. Utility Model Content

[0006] The purpose of the utility model is to provide a graphitized negative electrode material feeding and screening device, which solves the problems in the above-mentioned prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a graphitized negative electrode material feeding and screening device, comprising a screening body, a feed port is fixed at the left end of the screening body, a lifting assembly is provided at the right end of the screening body, a discharge hopper is fixed at the lower end of the screening body, a screening assembly and a crushing assembly are provided inside the screening body, and the screening assembly is located below the crushing assembly;

[0008] The screening assembly comprises a screening plate and a rotating shaft, wherein the screening plate is fixedly connected to the screening body, and both ends of the rotating shaft are rotatably connected to the screening body, and a plurality of fixing rods are symmetrically fixed to the outer wall of the rotating shaft, and an anti-blocking scraper is fixed to the rotating shaft through the fixing rods, and a plurality of spring beads are fixed to the outer wall of the anti-blocking scraper along its long side, and a spiral scraper is arranged on the periphery of the rotating shaft, and the spiral scraper is fixedly connected to the anti-blocking scraper;

[0009] The crushing assembly includes a crushing and grinding cylinder fixedly connected to a screening body, a rotating shaft is provided inside the crushing and grinding cylinder, a T-shaped crushing rod is symmetrically provided on the outer wall of the rotating shaft, a screen fixed to the crushing and grinding cylinder is provided at the lower end of the crushing rod, a grinding head is provided at the lower end of the screen, a crushing motor fixed to the screening body is connected to the upper end of the rotating shaft, and a plurality of discharge holes are provided on the outer wall of the crushing and grinding cylinder along its circumference.

[0010] Preferably, the lifting assembly includes a conveying cylinder, a lifting cylinder and a discharge pipe, the left end of the conveying cylinder is connected to the screening body, the interior of the conveying cylinder is rotatably connected to a conveying auger, the interior of the lifting cylinder is rotatably connected to a lifting auger, the left end of the conveying auger is rotatably connected to a fixing plate fixedly connected to the conveying cylinder, and the right end of the conveying auger is fixedly connected to the output shaft of the lifting motor.

[0011] Preferably, the conveying auger and the lifting auger are shafted auger, a first umbrella-shaped wheel is fixed to the outer wall of the conveying auger, a second umbrella-shaped wheel is fixed to the lower end of the lifting auger, and the first umbrella-shaped wheel is meshed with the second umbrella-shaped wheel.

[0012] Preferably, the conveying cylinder is placed horizontally, the lifting cylinder is placed vertically, the conveying cylinder is connected to the lower end of the lifting cylinder, the discharge pipe is placed obliquely, and the discharge pipe is connected to the upper end of the lifting cylinder.

[0013] Preferably, the rotating shaft is rotatably connected to the screen, the rotating shaft is fixedly connected to the grinding head, and the lower end of the rotating shaft is rotatably connected to the crushing and grinding cylinder.

[0014] Preferably, the left end of the conveying auger is provided with a belt driven by a rotating shaft, and the lowest point of the conveying cylinder and the lowest point of the screening plate are located in the same horizontal plane.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The rotation of the shaft drives the spiral scraper and the anti-blocking scraper to rotate, which is beneficial to stirring and scraping the material above the screening plate, so that the material that meets the specifications can be screened out from the screening plate, and the material on the inner wall of the screening plate can be scraped off to ensure the screening efficiency. The spring beads correspond to the screen holes on the screening plate, which is beneficial to eject the materials stuck in the screen holes and prevent the materials from clogging the screen holes of the screening plate, thereby affecting the screening efficiency. At the same time, setting the spiral scraper in a spiral shape is beneficial to move the non-standard materials on the upper end of the screening plate to the lifting component for lifting.

[0017] 2. The lifting component can lift the non-standard materials and make them enter the crushing component, which is conducive to crushing and grinding the non-standard materials, so that the crushed and ground materials fall into the screening component again for screening, and the non-standard materials are broken by the crushing rod to prevent the large materials from affecting the rotation of the grinding head. The crushed materials are squeezed and ground by the grinding head and the crushing and grinding cylinder, so that the ground materials meet the specifications as much as possible, and there is no need to use other devices to process the non-standard materials again. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a partial cross-sectional schematic diagram of the utility model;

[0020] Figure 3 It is an overall schematic diagram of the screening assembly of the utility model;

[0021] Figure 4 It is a partial cross-sectional schematic diagram of the crushing assembly of the utility model;

[0022] Figure 5 It is a cross-sectional schematic diagram of the lifting assembly of the utility model;

[0023] Figure 6 It is an overall cross-sectional schematic diagram of the utility model.

[0024] Explanations in the figure: 1. Screening body; 2. Screening assembly; 3. Lifting assembly; 4. Crushing assembly; 101. Feed inlet; 102. Discharge hopper; 201. Screening plate; 202. Rotating shaft; 203. Anti-blocking scraper; 204. Spiral scraper; 205. Spring ball; 206. Fixed rod; 301. Conveying cylinder; 302. Lifting cylinder; 303. Conveying auger; 304. Lifting auger; 305. Feeding pipe; 306. Fixed plate; 307. First umbrella wheel; 308. Second umbrella wheel; 309. Lifting motor; 401. Crushing and grinding cylinder; 402. Discharge hole; 403. Rotating shaft; 404. Crushing motor; 405. Crushing rod; 406. Screen; 407. Grinding head. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0026] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See also Figure 1 , Figure 2 and Figure 3A graphitized negative electrode material feeding and screening device comprises a screening body 1, a feed port 101 is fixed at the left end of the screening body 1, a lifting assembly 3 is provided at the right end of the screening body 1, a discharge hopper 102 is fixed at the lower end of the screening body 1, the feed port 101 is used for pouring materials, which is conducive to putting the materials to be screened into the screening body 1 for screening, and the height of the feed port 101 is higher than the height of the screening assembly 2 to prevent the screening assembly 2 from touching the operator when working, and the lifting assembly 3 is used to lift the materials that do not meet the specifications, The materials that do not meet the specifications are sent to the next processing position for processing. The discharge hopper 102 is funnel-shaped, which is conducive to the centralized discharge of qualified materials screened out, and is conducive to their transportation or packaging. The interior of the screening body 1 is provided with a screening component 2 and a crushing component 4, and the screening component 2 is located below the crushing component 4. The screening component 2 includes a screening plate 201 and a rotating shaft 202. The screening plate 201 is fixedly connected to the screening body 1, and the two ends of the rotating shaft 202 are rotatably connected to the screening body 1. The outer wall is symmetrically fixed with a plurality of fixing rods 206, the rotating shaft 202 is connected and fixed with an anti-blocking scraper 203 through the fixing rods 206, the outer wall of the anti-blocking scraper 203 is fixed with a plurality of spring beads 205 along its long side, the outer periphery of the rotating shaft 202 is provided with a spiral scraper 204, the spiral scraper 204 is fixedly connected with the anti-blocking scraper 203, the rotation of the rotating shaft 202 drives the spiral scraper 204 and the anti-blocking scraper 203 to rotate, which is conducive to stirring the material above the screening plate 201, so that the material that meets the specifications is screened from the screening plate 201 The spring beads 205 correspond to the sieve holes on the sieve plate 201, which is conducive to ejecting the materials stuck in the sieve holes, and preventing the materials from clogging the sieve holes of the sieve plate 201, thereby affecting the screening efficiency. At the same time, the spiral scraper 204 is set to a spiral shape, which is conducive to moving the materials that do not meet the specifications at the upper end of the sieve plate 201 to the lifting component 3 for lifting. The spring beads 205 are existing structures and will not be elaborated here. The crushing component 4 is conducive to crushing and grinding the materials that do not meet the specifications to make them meet the specifications.

[0029] See also Figure 2 and Figure 4The pulverizing assembly 4 includes a crushing and grinding cylinder 401 fixedly connected to the screening body 1, a rotating shaft 403 is provided inside the crushing and grinding cylinder 401, and a T-shaped crushing rod 405 is symmetrically provided on the outer wall of the rotating shaft 403. A leakage net 406 fixed to the crushing and grinding cylinder 401 is provided at the lower end of the crushing rod 405, and a grinding head 407 is provided at the lower end of the leakage net 406. A crushing motor 404 fixed to the screening body 1 is connected to the upper end of the rotating shaft 403. The outer wall of the crushing and grinding cylinder 401 has a plurality of discharge holes 402 along its circumference. The rotating shaft 403 is rotatably connected to the leakage net 406, and the rotating shaft 403 is fixedly connected to the grinding head 407. The lower end of the rotating shaft 403 is connected to the crushing and grinding The cylinder 401 is rotatably connected, and the non-conforming materials are crushed and ground through the crushing component 4, so that most of the non-conforming materials reach the specifications. The crushing motor 404 drives the rotating shaft 403 to rotate, and the rotating shaft 403 drives the crushing rod 405 and the grinding head 407 to rotate. The crushing rod 405 rotates to crush the non-conforming materials that fall into the upper end of the sieve 406 to prevent the large materials from affecting the grinding effect of the grinding head 407. Small pieces of materials fall from the sieve 406 and fall onto the grinding head 407. The edge of the grinding head 407 and the crushing and grinding cylinder 401 squeeze and grind the small pieces of materials. The ground materials fall back into the screening component 2 through the discharge hole 402 for screening again.

[0030] See also Figure 2 , Figure 5 and Figure 6The lifting assembly 3 includes a conveying cylinder 301, a lifting cylinder 302 and a feeding pipe 305. The left end of the conveying cylinder 301 is connected to the screening body 1. The conveying auger 303 is rotatably connected inside the conveying cylinder 301. The lifting auger 304 is rotatably connected inside the lifting cylinder 302. The left end of the conveying auger 303 is rotatably connected to a fixing plate 306 fixedly connected to the conveying cylinder 301. The right end of the conveying auger 303 is fixedly connected to the output shaft of the lifting motor 309. The conveying auger 303 and the lifting auger 304 are connected to the conveying cylinder 301. 4 is a shaft auger, the outer wall of the conveying auger 303 is fixed with a first umbrella wheel 307, the lower end of the lifting auger 304 is fixed with a second umbrella wheel 308, the first umbrella wheel 307 is meshed with the second umbrella wheel 308, the lifting motor 309 rotates to drive the conveying auger 303 to rotate, the conveying auger 303 rotates through the first umbrella wheel 307 and the second umbrella wheel 308 to drive the lifting auger 304 to rotate, which is conducive to lifting the materials that do not meet the specifications and make them fall into the crushing component 4 through the discharge pipe 305 for crushing Grinding, the conveying cylinder 301 is placed horizontally, the lifting cylinder 302 is placed vertically, the conveying cylinder 301 is connected to the lower end of the lifting cylinder 302, the discharge pipe 305 is placed obliquely, and the inclination of the discharge pipe 305 is prevented, which is conducive to the lifting cylinder 302. When the material reaches the upper end, it can rely on its own gravity to slide through the discharge pipe 305 into the crushing component 4. The discharge pipe 305 is connected to the upper end of the lifting cylinder 302. The left end of the conveying auger 303 is provided with a belt driven by the rotating shaft 202, which is connected to the first umbrella wheel 307 through the first umbrella wheel 307. The second umbrella wheel 308 is meshed, and the conveying auger 303 is transmitted to the rotating shaft 202 through the belt, which is beneficial for the conveying auger 303 to rotate and drive the lifting auger 304 and the rotating shaft 202 to rotate. The lowest point of the conveying cylinder 301 and the lowest point of the screening plate 201 are located at the same horizontal plane. The lowest point of the conveying cylinder 301 and the lowest point of the screening plate 201 are set at the same horizontal plane, which is beneficial for the materials that do not meet the specifications at the upper end of the screening plate 201 to smoothly enter the lifting component 3 for lifting, so that it can be reprocessed in the subsequent device.

[0031] When the utility model is used:

[0032] First, the lifting motor 309 and the crushing motor 404 are started to work, and the material to be screened is poured into the feed inlet 101, and the material in the feed inlet 101 enters the screening component 2 for screening;

[0033] Then, the lifting motor 309 works and rotates to drive the conveying auger 303 to rotate, and the conveying auger 303 rotates through the first umbrella wheel 307 and the second umbrella wheel 308 to drive the lifting auger 304 to rotate, and the conveying auger 303 is transmitted through the belt and the rotating shaft 202, and the conveying auger 303 drives the rotating shaft 202 to rotate at the same time, and the rotation of the rotating shaft 202 drives the spiral scraper 204 and the anti-blocking scraper 203 to rotate, so as to stir the materials above the screening plate 201, so that the materials meeting the specifications are screened out from the screening plate 201, and the screened materials meeting the specifications are concentrated and discharged through the discharge hopper 102, and the spring beads 205 correspond to the sieve holes on the screening plate 201, and the materials stuck in the sieve holes are pushed out to prevent the materials from clogging the sieve holes of the screening plate 201 and affecting the screening efficiency. At the same time, the spiral scraper 204 is set to a spiral shape, so that it can move the materials that do not meet the specifications at the upper end of the screening plate 201 to the lifting component 3 for lifting;

[0034] Next, the materials that do not meet the specifications are lifted by the conveying auger 303 and the lifting auger 304, and are conveyed to the crushing component 4 through the discharge pipe 305. The materials that do not meet the specifications and are larger in size are at the upper end of the sieve 406. The crushing motor 404 drives the rotating shaft 403 to rotate, and the rotating shaft 403 drives the crushing rod 405 and the grinding head 407 to rotate. The crushing rod 405 rotates to crush the materials that do not meet the specifications that fall into the upper end of the sieve 406 to prevent the materials from being too large. Small pieces of materials fall from the sieve 406 and fall onto the grinding head 407. The grinding head 407 rotates and the edge of the grinding head 407 and the crushing and grinding cylinder 401 squeeze and grind the small pieces of materials. The ground materials fall back into the screening component 2 through the discharge hole 402 for screening again.

[0035] Finally, the screening component 2 screens the crushed and ground materials again, and the materials that do not meet the specifications continue to enter the crushing component 4 through the lifting component 3 and come out for circulation.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A graphitized negative electrode material feeding and screening device, comprising a screening body (1), characterized in that: A feed port (101) is fixed at the left end of the screening body (1), a lifting assembly (3) is provided at the right end of the screening body (1), a discharge hopper (102) is fixed at the lower end of the screening body (1), a screening assembly (2) and a crushing assembly (4) are provided inside the screening body (1), and the screening assembly (2) is located below the crushing assembly (4); The screening assembly (2) comprises a screening plate (201) and a rotating shaft (202); the screening plate (201) is fixedly connected to the screening body (1); both ends of the rotating shaft (202) are rotatably connected to the screening body (1); a plurality of fixing rods (206) are symmetrically fixed to the outer wall of the rotating shaft (202); an anti-blocking scraper (203) is connected and fixed to the rotating shaft (202) via the fixing rods (206); a plurality of spring beads (205) are fixed to the outer wall of the anti-blocking scraper (203) along its long side; a spiral scraper (204) is provided on the periphery of the rotating shaft (202); and the spiral scraper (204) is fixedly connected to the anti-blocking scraper (203); The pulverizing assembly (4) comprises a crushing and grinding cylinder (401) fixedly connected to a screening body (1); a rotating shaft (403) is provided inside the crushing and grinding cylinder (401); a T-shaped crushing rod (405) is symmetrically provided on the outer wall of the rotating shaft (403); a screen (406) fixed to the crushing and grinding cylinder (401) is provided at the lower end of the crushing rod (405); a grinding head (407) is provided at the lower end of the screen (406); a crushing motor (404) fixed to the screening body (1) is connected to the upper end of the rotating shaft (403); and a plurality of discharge holes (402) are provided on the outer wall of the crushing and grinding cylinder (401) along its circumference.

2. The graphitized negative electrode material feeding and screening device according to claim 1, characterized in that: The lifting assembly (3) comprises a conveying cylinder (301), a lifting cylinder (302) and a discharge pipe (305); the left end of the conveying cylinder (301) is connected to the screening body (1); the interior of the conveying cylinder (301) is rotatably connected to a conveying auger (303); the interior of the lifting cylinder (302) is rotatably connected to a lifting auger (304); the left end of the conveying auger (303) is rotatably connected to a fixing plate (306) fixedly connected to the conveying cylinder (301); and the right end of the conveying auger (303) is fixedly connected to the output shaft of a lifting motor (309).

3. A graphitized negative electrode material feeding and screening device according to claim 2, characterized in that: The conveying auger (303) and the lifting auger (304) are shafted auger, a first umbrella-shaped wheel (307) is fixed to the outer wall of the conveying auger (303), a second umbrella-shaped wheel (308) is fixed to the lower end of the lifting auger (304), and the first umbrella-shaped wheel (307) is meshed with the second umbrella-shaped wheel (308).

4. The graphitized negative electrode material feeding and screening device according to claim 2, characterized in that: The conveying cylinder (301) is placed horizontally, the lifting cylinder (302) is placed vertically, the conveying cylinder (301) is connected to the lower end of the lifting cylinder (302), the discharge pipe (305) is placed obliquely, and the discharge pipe (305) is connected to the upper end of the lifting cylinder (302).

5. The graphitized negative electrode material feeding and screening device according to claim 1, characterized in that: The rotating shaft (403) is rotatably connected to the screen (406), the rotating shaft (403) is fixedly connected to the grinding head (407), and the lower end of the rotating shaft (403) is rotatably connected to the crushing and grinding cylinder (401).

6. The graphitized negative electrode material feeding and screening device according to claim 2, characterized in that: The left end of the conveying auger (303) is provided with a belt that is driven by the rotating shaft (202), and the lowest point of the conveying cylinder (301) and the lowest point of the screening plate (201) are located at the same horizontal plane.

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