Graphite raw material grinding machine

Abstract

The utility model provides a graphite raw material grinding machine which comprises a graphite grinding shell and further comprises a crushing structure arranged at the top of the graphite grinding shell. And the screening and grinding structure is arranged in the graphite grinding shell. A baffle plate can rotate upwards again under the action of a torsion spring and is blocked in the feeding shell, so that the feeding shell can be blocked automatically and conveniently after discharging, dust generated when graphite raw materials are crushed is prevented from being raised out and polluting the environment, a second supporting rod is rotated to drive a second transmission wheel and a screening net to rotate synchronously, and the screening efficiency is improved. And a second transmission wheel drives a cleaning brush to rotate, the cleaning brush is conveniently and synchronously driven to rotate during screening, cleaning is conducted along with a screening net, the screening net is prevented from being blocked, the screening efficiency is prevented from being affected, and screened large graphite fragments can be conveniently and better conveyed and crushed again through a conveying structure.

Description

Technical Field

[0001] The utility model relates to the field of graphite processing, and more particularly to a graphite raw material grinder. Background Art

[0002] Graphite is an allotrope of carbon, a grayish-black opaque solid with stable chemical properties, corrosion resistance, and is not easily reactive with chemicals such as acids and alkalis. Natural graphite comes from graphite deposits, or can be made from petroleum coke, pitch coke, etc. as raw materials through a series of processes. Graphite burns in oxygen to form carbon dioxide and can be oxidized by strong oxidants such as concentrated nitric acid and potassium permanganate. It can be used as an anti-wear agent, lubricant, high-purity graphite is used as a neutron moderator in atomic reactors, and can also be used to manufacture crucibles, electrodes, brushes, dry batteries, graphite fibers, heat exchangers, coolers, electric arc furnaces, arc lamps, pencil leads, etc. During the grinding process of graphite, a grinder is usually used.

[0003] In the existing Chinese utility models, the one with the publication number CN213434727U discloses a graphite raw material crushing and grinding integrated machine, including a box body. The upper part of the box body is symmetrically penetrated with material grooves, the discharge ports of the material grooves are located inside the box body, and a pair of roll crushing mechanisms are arranged near the discharge ports on the inner sides of the material grooves; a motor is arranged on the upper part of the box body, the output shaft of the motor is connected with a reducer, the output shaft of the reducer is connected with a rotating shaft, the rotating shaft extends into the box body, a grinding roller frame is arranged at the bottom end of the rotating shaft, a grinding disc matched with the grinding roller frame is arranged inside the box body, and a discharge hole is arranged in the axial direction of the grinding disc; a discharge pipe is communicated with the bottom of the outer wall of the box body. The utility model is convenient to use, quickly realizes continuous crushing and grinding operations, improves processing efficiency, and reduces the cost investment of single equipment.

[0004] Referring to the above-mentioned graphite raw material crushing and grinding integrated machine, the crushing and grinding integrated machine uses a screening plate to screen the crushed graphite. However, during the screening process, the crushed graphite may be blocked in the screening holes on the screening plate, thus affecting the overall screening effect of the screening plate. In addition, when the crushing and grinding integrated machine crushes graphite through a roll crushing mechanism, a certain amount of dust will be generated in the crushed graphite, and these dusts may be blown out through the material groove, causing a certain degree of environmental pollution. Therefore, how to better avoid the blockage of the screening net and avoid the emission of graphite dust and environmental pollution is an important problem to be solved in the design of graphite raw material grinders. Summary of the Utility Model

[0005] The utility model provides a graphite raw material grinder to solve the problems of better avoiding the blockage of the screening net and avoiding the emission of graphite dust and environmental pollution.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] The utility model provides a graphite raw material grinder, which comprises a graphite grinding housing, and further comprises:

[0008] a crushing structure, which is arranged at the top of the graphite grinding housing;

[0009] a screening and grinding structure, which is arranged inside the graphite grinding housing;

[0010] a feeding structure, which sends the graphite screened out by the screening and grinding structure back into the crushing structure;

[0011] a cleaning structure, which is arranged on the screening and grinding structure.

[0012] Preferably, three supporting rods I are fixedly connected to the bottom side wall of the graphite grinding housing at equal intervals. A discharge pipe is fixedly connected to the bottom side wall of the graphite grinding housing. A guiding block is fixedly connected to the inner bottom side wall of the graphite grinding housing, and the guiding block is inclined towards the discharge pipe.

[0013] In this technical solution, the guiding block guides the ground graphite powder into the discharge pipe.

[0014] Preferably, the crushing structure comprises a feeding housing, crushing rollers, a rotating rod I and a rotating motor I. The feeding housing is fixedly connected to the top side wall of the graphite grinding housing. The bottom of the feeding housing is inclined towards the middle. Two rotating rods I are rotatably connected to the inner side wall of the feeding housing. The rotating motor I is fixedly connected to the outer side wall of the feeding housing. The rotating end of the rotating motor I is fixedly connected to the rotating rod I. Two crushing rollers are fixedly connected to the two rotating rods I.

[0015] In this technical solution, the rotating motor I rotates to drive the rotating rod I to rotate, and the rotating rod I drives the crushing rollers to rotate, and the crushing rollers crush the graphite raw material.

[0016] Preferably, the crushing structure comprises a shielding plate, a circular groove, a rotating support rod I and a torsion spring. The rotating support rod I is rotatably connected to the inner side wall of the feeding housing. Two shielding plates are rotatably connected to the rotating support rod I. Circular grooves are formed on the side walls on both sides of the two shielding plates. One end of the torsion spring is fixedly connected to the inner side wall of the circular groove, and the other end of the torsion spring is fixedly connected to the side wall of the feeding housing.

[0017] In the present technical solution, the graphite raw material is placed in the feed shell, the baffle rotates downward under the action of the gravity of the graphite raw material, the two baffles open, and the graphite raw material falls. After the graphite raw material falls, the opened baffle rotates upward again under the action of the torsion spring, and the two baffles block the feed shell again. Preferably, after the material is unloaded, the feed shell is automatically sealed to prevent the dust generated when the graphite raw material is crushed from being blown out and polluting the environment.

[0018] Preferably, the screening and grinding structure includes two rotating motors, a support frame, one transmission wheel, two rotating support rods, a fixed block and two transmission wheels, the support frame is fixedly connected to the top side wall of the graphite grinding shell, the two rotating support rods are rotatably connected to the graphite grinding shell and the side walls of the support frame, the two rotating motors are fixedly connected to the top side walls of the support frame, the rotating end of the two rotating motors is fixedly connected to the two rotating support rods, the side walls of the two rotating support rods are fixedly connected to the one transmission wheel, the fixed block and the two transmission wheels, and the one transmission wheel is located at the top of the graphite grinding shell.

[0019] In this technical solution, the rotation of the rotating motor 2 drives the rotating support rod 2 to rotate, and the rotating support rod drives the transmission wheel 1, the transmission wheel 2, the fixed block and the grinding block to rotate.

[0020] Preferably, the screening and grinding structure includes a screening mesh, a connecting frame, a spring, a support ring and ball bearings. A cylindrical connecting frame is slidably connected to the second rotating support rod, and the connecting frame is slidably connected to the fixed block. The top of the connecting frame is tilted downward, and the spring is fixedly connected between the fixed block and the connecting frame. A circular screening mesh is fixedly connected to the side wall of the connecting frame, and the bottom of the screening mesh is fixedly connected to the support ring. Four ball bearings are rotatably connected to the bottom side wall of the support ring at equal distances.

[0021] In this technical solution, the fixed block drives the connecting frame to rotate, the connecting frame drives the screening net to rotate, the screening net drives the supporting ring to rotate, the supporting ring drives the ball to roll on the fixed tooth ring, and when the ball continuously rolls along the fixed tooth ring, it drives the screening net to vibrate. The spring in the connecting frame can amplify the vibration of the screening net, so that the screening net continuously vibrates during the rotation process, thereby screening the crushed graphite raw materials on the screening net.

[0022] Preferably, the screening and grinding structure includes a grinding block, a grinding frame, grinding protrusion one, grinding protrusion two and a fixed gear ring, the grinding block is fixedly connected to the side wall of the rotating support rod two, the grinding protrusion two is fixedly connected to the side wall of the grinding block at equal distances, the grinding frame is fixedly connected to the inner side wall of the graphite grinding shell, the grinding protrusion one is fixedly connected to the inner side wall of the grinding frame, the positions of the grinding block and the grinding frame correspond to each other, the positions of the grinding protrusion one and the grinding protrusion two are staggered with each other, and the top side wall of the grinding frame is fixedly connected to the fixed gear ring.

[0023] In this technical solution, the smaller graphite fragments fall downward and enter between the grinding block and the grinding frame for grinding.

[0024] Preferably, the feeding structure includes a feeding housing, a third driving wheel, a first driving belt, a feeding screw, and a first feeding pipe. The feeding housing is fixedly connected to the side wall of the graphite grinding housing. The feeding screw is rotatably connected inside the feeding housing. The top of the feeding screw extends out of the feeding housing and is fixedly connected to the third driving wheel. A first driving belt is sleeved between the third driving wheel and the first driving wheel. The top of the side wall of the feeding housing is fixedly connected to the first feeding pipe. The other end of the first feeding pipe extends into the graphite grinding housing and is fixedly connected to the feeding housing. The first feeding pipe is inclined.

[0025] In this technical solution, the first driving wheel drives the third driving wheel to rotate through the first driving belt. The third driving wheel drives the feeding screw to rotate. The feeding screw rotates to convey the larger graphite fragments upward, conveys them into the first feeding pipe, and re-conveys them into the feeding housing through the first feeding pipe for crushing.

[0026] Preferably, a second feeding pipe is fixedly connected to the side wall of the graphite grinding housing where it is connected to the feeding housing.

[0027] Preferably, the cleaning structure includes a second support rod, a fourth driving wheel, a second driving belt, a second rotating rod, and a cleaning brush. The second support rod is fixedly connected to the inner side wall of the graphite grinding housing. The second rotating rod is rotatably connected to the second support rod. The bottom of the second rotating rod is fixedly connected to the cleaning brush. The cleaning brush is attached to the side wall of the screening mesh. The top of the second rotating rod is fixedly connected to the fourth driving wheel. A second driving belt is sleeved between the fourth driving wheel and the second driving wheel.

[0028] In this technical solution, the second driving wheel drives the fourth driving wheel to rotate through the second driving belt. The fourth driving wheel drives the second rotating rod to rotate. The second rotating rod drives the cleaning brush to rotate. While the cleaning brush cleans the surface of the screening mesh, it can push the larger graphite fragments into the second feeding pipe, and the larger graphite fragments fall into the feeding housing.

[0029] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0030] The positive and progressive effects of the present invention are as follows:

[0031] 1. By placing the graphite raw material into the feeding housing, the baffle plate rotates downward under the action of the gravity of the graphite raw material, opening between the two baffle plates, and the graphite raw material falls. After the graphite raw material falls, the opened baffle plate rotates upward again under the action of the torsion spring, and the two baffle plates re-block the inside of the feeding housing, which is convenient for automatically sealing the feeding housing better after feeding, avoiding the dust generated when the graphite raw material is broken from being lifted out and polluting the environment.

[0032] 2. By rotating the second support rod to drive the second transmission wheel and the screening mesh to rotate synchronously, the second transmission wheel drives the fourth transmission wheel to rotate through the second transmission belt, the fourth transmission wheel drives the second rotating rod to rotate, the second rotating rod drives the cleaning brush to rotate, and the cleaning brush cleans the surface of the screening mesh, which is convenient for driving the cleaning brush to rotate synchronously while screening better, cleaning along with the screening mesh, and avoiding the screening mesh from being blocked and affecting the screening efficiency.

[0033] 3. The first transmission wheel drives the third transmission wheel to rotate through the first transmission belt, the third transmission wheel drives the feeding screw to rotate, and the feeding screw rotates to convey the larger graphite fragments upward, conveying them into the first through-feed pipe, and re-conveying them into the feeding housing through the first through-feed pipe for crushing, which is convenient for re-feeding and crushing the larger screened graphite fragments better. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic perspective view of the whole of the present utility model.

[0035] Figure 2 It is a schematic internal structure view of the whole of the present utility model.

[0036] Figure 3 It is a schematic side internal structure view of the whole of the present utility model.

[0037] Figure 4 It is a schematic top internal structure view of the whole of the present utility model.

[0038] Figure 5 It is the whole of the present utility model Figure 2 Schematic enlarged partial structure view of part A.

[0039] Figure 6 It is the whole of the present utility model Figure 4 Schematic enlarged partial structure view of part B.

[0040] Figure 7 It is a schematic perspective view of the fixed gear ring of the present utility model.

[0041] DESCRIPTION OF THE REFERENCE NUMERALS

[0042] 1. Graphite grinding housing; 2. First support rod; 3. Crushing structure; 301. Feed housing; 302. Crushing roller; 303. First rotating rod; 304. First rotating motor; 311. Baffle; 312. Circular groove; 313. First rotating support rod; 314. Torsion spring; 4. Screening and grinding structure; 401. Second rotating motor; 402. Support frame; 403. First transmission wheel; 404. Second rotating support rod; 405. Fixed square block; 406. Second transmission wheel; 411. Screening mesh; 412. Connecting frame; 413. Spring; 414. Support ring; 415. Ball; 421. Grinding block; 422. Grinding frame; 423. First grinding convex block; 424. Second grinding convex block; 425. Fixed toothed ring; 5. Feeding structure; 501. Feeding housing; 502. Third transmission wheel; 503. First transmission belt; 504. Feeding screw; 505. First feeding pipe; 6. Second feeding pipe; 7. Guide block; 8. Cleaning structure; 801. Second support rod; 802. Fourth transmission wheel; 803. Second transmission belt; 804. Second rotating rod; 805. Cleaning brush; 9. Discharge pipe. Detailed implementation mode

[0043] The present utility model will be further described below by way of embodiments, but the present utility model is not limited to the scope of the described embodiments.

[0044] As Figure 1-7 shown, the graphite raw material grinder includes a graphite grinding housing 1, and further includes:

[0045] A crushing structure 3, the crushing structure 3 is arranged on the top of the graphite grinding housing 1;

[0046] A screening and grinding structure 4, the screening and grinding structure 4 is arranged inside the graphite grinding housing 1;

[0047] A feeding structure 5, the feeding structure 5 sends the graphite screened out by the screening and grinding structure 4 back into the crushing structure 3;

[0048] A cleaning structure 8, the cleaning structure 8 is arranged on the screening and grinding structure 4.

[0049] Three first support rods 2 are fixedly connected at equal intervals on the bottom side wall of the graphite grinding housing 1, a discharge pipe 9 is fixedly connected on the bottom side wall of the graphite grinding housing 1, a guide block 7 is fixedly connected on the inner bottom side wall of the graphite grinding housing 1, and the guide block 7 is inclined towards the discharge pipe 9.

[0050] The guide block 7 guides the ground graphite powder into the discharge pipe 9.

[0051] The crushing structure 3 includes a feed housing 301, a crushing roller 302, a first rotating rod 303, and a first rotating motor 304. The feed housing 301 is fixedly connected to the top side wall of the graphite grinding housing 1. The bottom of the feed housing 301 is inclined towards the middle. Two first rotating rods 303 are rotatably connected to the inner side wall of the feed housing 301. The first rotating motor 304 is fixedly connected to the outer side wall of the feed housing 301. The rotating end of the first rotating motor 304 is fixedly connected to the first rotating rod 303. Two crushing rollers 302 are fixedly connected to the two first rotating rods 303.

[0052] The first rotating motor 304 rotates to drive the first rotating rod 303 to rotate. The first rotating rod 303 drives the crushing roller 302 to rotate, and the crushing roller 302 crushes the graphite raw material.

[0053] The crushing structure 3 includes a shielding plate 311, a circular groove 312, a first rotating support rod 313, and a torsion spring 314. The first rotating support rod 313 is rotatably connected to the inner side wall of the feed housing 301. Two shielding plates 311 are rotatably connected to the first rotating support rod 313. Circular grooves are formed on the side walls on both sides of the two shielding plates 311. One end of the torsion spring 314 is fixedly connected to the inner side wall of the circular groove 312, and the other end of the torsion spring 314 is fixedly connected to the side wall of the feed housing 301.

[0054] The graphite raw material is placed into the feed housing 301. The shielding plates 311 rotate downward under the action of the gravity of the graphite raw material, and the space between the two shielding plates 311 opens, allowing the graphite raw material to fall. After the graphite raw material has fallen, the opened shielding plates 311 rotate upward again under the action of the torsion spring 314, and the two shielding plates 311 re-block the inside of the feed housing 301. Preferably, after feeding, the feed housing 301 is automatically sealed to prevent the dust generated during the crushing of the graphite raw material from being blown out and polluting the environment.

[0055] The screening and grinding structure 4 includes a second rotating motor 401, a support frame 402, a first transmission wheel 403, a second rotating support rod 404, a fixed block 405, and a second transmission wheel 406. The support frame 402 is fixedly connected to the top side wall of the graphite grinding housing 1. The second rotating support rod 404 is rotatably connected to the side walls of the graphite grinding housing 1 and the support frame 402. The second rotating motor 401 is fixedly connected to the top side wall of the support frame 402. The rotating end of the second rotating motor 401 is fixedly connected to the second rotating support rod 404. The side wall of the second rotating support rod 404 is fixedly connected with the first transmission wheel 403, the fixed block 405, and the second transmission wheel 406. The first transmission wheel 403 is located on the top of the graphite grinding housing 1.

[0056] The rotation of the second rotating motor 401 drives the rotation of the second rotating support rod 404, and the second rotating support rod 8012 drives the rotation of the first transmission wheel 403, the second transmission wheel 406, the fixed square block 405, and the grinding block 421.

[0057] The screening and grinding structure 4 includes a screening mesh 411, a connecting frame 412, a spring 413, a support ring 414, and a ball 415. A cylindrical connecting frame 412 is slidably connected to the second rotating support rod 404. The connecting frame 412 is slidably connected to the fixed square block 405. The top of the connecting frame 412 is inclined downward. The spring 413 is fixedly connected between the fixed square block 405 and the connecting frame 412. A circular screening mesh 411 is fixedly connected to the side wall of the connecting frame 412. The bottom of the screening mesh 411 is fixedly connected to the support ring 414. Four balls 415 are rotatably connected at equal intervals to the bottom side wall of the support ring 414.

[0058] The fixed square block 405 drives the connecting frame 412 to rotate. The connecting frame 412 drives the screening mesh 411 to rotate. The screening mesh 411 drives the support ring 414 to rotate. The support ring 414 drives the balls 415 to roll on the fixed tooth ring 425. When the balls 415 continuously roll along the fixed tooth ring 425, it drives the screening mesh 411 to vibrate. The spring 413 in the connecting frame 412 can amplify the vibration of the screening mesh 411, so that the screening mesh 411 continuously vibrates during rotation, and screens the crushed graphite raw materials on the screening mesh 411.

[0059] The screening and grinding structure 4 includes a grinding block 421, a grinding frame 422, a first grinding convex block 423, a second grinding convex block 424, and a fixed tooth ring 425. The grinding block 421 is fixedly connected to the side wall of the second rotating support rod 404. The second grinding convex blocks 424 are fixedly connected at equal intervals to the side wall of the grinding block 421. The grinding frame 422 is fixedly connected to the inner side wall of the graphite grinding housing 1. The first grinding convex block 423 is fixedly connected to the inner side wall of the grinding frame 422. The positions of the grinding block 421 and the grinding frame 422 correspond to each other. The positions of the first grinding convex block 423 and the second grinding convex block 424 are arranged staggeredly. The fixed tooth ring 425 is fixedly connected to the top side wall of the grinding frame 422.

[0060] The smaller graphite fragments fall downward and enter between the grinding block 421 and the grinding frame 422 for grinding.

[0061] The feeding structure 5 includes a feeding housing 501, a third driving wheel 502, a first transmission belt 503, a feeding screw 504, and a first material-passing pipe 505. The feeding housing 501 is fixedly connected to the side wall of the graphite grinding housing 1. The feeding screw 504 is rotatably connected inside the feeding housing 501. The top of the feeding screw 504 extends out of the feeding housing 501 and is fixedly connected to the third driving wheel 502. A first transmission belt 503 is sleeved between the third driving wheel 502 and the first driving wheel 403. The top of the side wall of the feeding housing 501 is fixedly connected to the first material-passing pipe 505. The other end of the first material-passing pipe 505 extends into the graphite grinding housing 1 and is fixedly connected to the feeding housing 301. The first material-passing pipe 505 is inclined.

[0062] The first driving wheel 403 drives the third driving wheel 502 to rotate through the first transmission belt 503. The third driving wheel 502 drives the feeding screw 504 to rotate. The feeding screw 504 rotates to convey larger graphite fragments upward, conveys them into the first material-passing pipe 505, and re-conveys them into the feeding housing 301 through the first material-passing pipe 505 for crushing.

[0063] A second material-passing pipe 6 is fixedly connected to the side wall of the graphite grinding housing 1 where it is connected to the feeding housing 501.

[0064] The cleaning structure 8 includes a second support rod 801, a fourth driving wheel 802, a second transmission belt 803, a second rotating rod 804, and a cleaning brush 805. The second support rod 801 is fixedly connected to the inner side wall of the graphite grinding housing 1. The second rotating rod 804 is rotatably connected to the second support rod 801. The bottom of the second rotating rod 804 is fixedly connected to the cleaning brush 805. The cleaning brush 805 is attached to the side wall of the screening mesh 411. The top of the second rotating rod 804 is fixedly connected to the fourth driving wheel 802. A second transmission belt 803 is sleeved between the fourth driving wheel 802 and the second driving wheel 406.

[0065] The second driving wheel 406 drives the fourth driving wheel 802 to rotate through the second transmission belt 803. The fourth driving wheel 802 drives the second rotating rod 804 to rotate. The second rotating rod 804 drives the cleaning brush 805 to rotate. While cleaning the surface of the screening mesh 411, the cleaning brush 805 can push larger graphite fragments into the second material-passing pipe 6, and the larger graphite fragments fall into the feeding housing 501.

[0066] When the utility model is in use, the electrical components appearing in this application are externally connected to a power source and a control switch during use. The graphite raw material is placed into the feeding housing 301. The baffle plate 311 rotates downward under the action of the gravity of the graphite raw material, and an opening is formed between the two baffle plates 311, allowing the graphite raw material to fall. After the graphite raw material has fallen, the opened baffle plate 311 rotates upward again under the action of the torsion spring 314, and the two baffle plates 311 re-block the inside of the feeding housing 301, which is convenient for automatically blocking the feeding housing 301 after feeding, avoiding the dust generated when the graphite raw material is broken from being blown out and polluting the environment;

[0067] The rotation motor one 304 rotates to drive the rotation rod one 303 to rotate, and the rotation rod one 303 drives the crushing roller 302 to rotate. The crushing roller 302 crushes the graphite raw material, and the crushed raw material falls onto the screening mesh 411 below;

[0068] The rotation motor two 401 rotates to drive the rotation support rod two 404 to rotate. The rotation support rod 8012 drives the driving wheel one 403, the driving wheel two 406, the fixed square block 405 and the grinding block 421 to rotate. The fixed square block 405 drives the connecting frame 412 to rotate, the connecting frame 412 drives the screening mesh 411 to rotate, the screening mesh 411 drives the support ring 414 to rotate, and the support ring 414 drives the ball 415 to roll on the fixed tooth ring 425. When the ball 415 continuously rolls along the fixed tooth ring 425, it drives the screening mesh 411 to vibrate. The spring 413 in the connecting frame 412 can amplify the vibration of the screening mesh 411, so that the screening mesh 411 continuously vibrates during rotation, screening the crushed graphite raw material on the screening mesh 411. The smaller graphite fragments fall below and enter between the grinding block 421 and the grinding frame 422 for grinding, while the larger graphite fragments stay on the screening mesh 411 and rotate with the screening mesh 411;

[0069] The driving wheel two 406 drives the driving wheel four 802 to rotate through the transmission belt two 803. The driving wheel four 802 drives the rotation rod two 804 to rotate, and the rotation rod two 804 drives the cleaning brush 805 to rotate. While the cleaning brush 805 cleans the surface of the screening mesh 411, it can push the larger graphite fragments into the feeding pipe two 6. The larger graphite fragments fall into the feeding housing 501. The driving wheel one 403 drives the driving wheel three 502 to rotate through the transmission belt one 503. The driving wheel three 502 drives the feeding screw 504 to rotate. The feeding screw 504 rotates to convey the larger graphite fragments upward, conveys them into the feeding pipe one 505, and re-conveys them into the feeding housing 301 through the feeding pipe one 505 for crushing, which is convenient for re-feeding and crushing the screened larger graphite fragments.

[0070] The present utility model is not limited to the above-mentioned embodiments. No matter what changes are made in its shape or structure, they all fall within the protection scope of the present utility model. The protection scope of the present utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present utility model, but these changes and modifications all fall within the protection scope of the present utility model.

Claims

1. Graphite raw material grinder, comprising a graphite grinding housing (1), characterized in that, Further included are: a crushing structure (3) which is arranged on the top of the graphite grinding housing (1); a screening and grinding structure (4) which is arranged inside the graphite grinding housing (1); a feeding structure (5) which returns the graphite screened out by the screening and grinding structure (4) back into the crushing structure (3); a cleaning structure (8) which is arranged on the screening and grinding structure (4).

2. The graphite raw material grinder according to claim 1, characterized in that: Three support rods one (2) are fixedly connected to the bottom side wall of the graphite grinding housing (1) at equal intervals. A discharge pipe (9) is fixedly connected to the bottom side wall of the graphite grinding housing (1). A guiding block (7) is fixedly connected to the inner bottom side wall of the graphite grinding housing (1), and the guiding block (7) is inclined towards the discharge pipe (9).

3. The graphite raw material grinder according to claim 1, characterized in that: The crushing structure (3) includes a feeding housing (301), a crushing roller (302), a rotating rod one (303) and a rotating motor one (304). The feeding housing (301) is fixedly connected to the top side wall of the graphite grinding housing (1). The bottom of the feeding housing (301) is inclined towards the middle. Two rotating rods one (303) are rotatably connected to the inner side wall of the feeding housing (301). The rotating motor one (304) is fixedly connected to the outer side wall of the feeding housing (301), and the rotating end of the rotating motor one (304) is fixedly connected to the rotating rod one (303). Two crushing rollers (302) are fixedly connected to the two rotating rods one (303).

4. The graphite raw material grinder according to claim 3, wherein: The crushing structure (3) includes a shielding plate (311), a circular groove (312), a rotating support rod one (313) and a torsion spring (314). The rotating support rod one (313) is rotatably connected to the inner side wall of the feeding housing (301). Two shielding plates (311) are rotatably connected to the rotating support rod one (313). Circular grooves are formed on the side walls on both sides of the two shielding plates (311). One end of the torsion spring (314) is fixedly connected to the inner side wall of the circular groove (312), and the other end of the torsion spring (314) is fixedly connected to the side wall of the feeding housing (301).

5. The graphite raw material grinder according to claim 1, characterized in that: The screening and grinding structure (4) includes a rotating motor two (401), a support frame (402), a transmission wheel one (403), a rotating support rod two (404), a fixed square block (405) and a transmission wheel two (406). The support frame (402) is fixedly connected to the top side wall of the graphite grinding housing (1). The rotating support rod two (404) is rotatably connected to the side walls of the graphite grinding housing (1) and the support frame (402). The rotating motor two (401) is fixedly connected to the top side wall of the support frame (402), and the rotating end of the rotating motor two (401) is fixedly connected to the rotating support rod two (404). A transmission wheel one (403), a fixed square block (405) and a transmission wheel two (406) are fixedly connected to the side wall of the rotating support rod two (404), and the transmission wheel one (403) is located on the top of the graphite grinding housing (1).

6. The graphite raw material grinder according to claim 5, characterized in that: The screening and grinding structure (4) includes a screening mesh (411), a connecting frame (412), a spring (413), a support ring (414) and balls (415). A cylindrical connecting frame (412) is slidably connected to the second rotating support rod (404). The connecting frame (412) is slidably connected to the fixed square block (405). The top of the connecting frame (412) is inclined downward. The spring (413) is fixedly connected between the fixed square block (405) and the connecting frame (412). A circular screening mesh (411) is fixedly connected to the side wall of the connecting frame (412). The support ring (414) is fixedly connected to the bottom of the screening mesh (411). Four balls (415) are rotatably connected to the bottom side wall of the support ring (414) at equal intervals.

7. The graphite raw material grinder according to claim 5, characterized in that: The screening and grinding structure (4) includes a grinding block (421), a grinding frame (422), a first grinding protrusion (423), a second grinding protrusion (424) and a fixed toothed ring (425). The grinding block (421) is fixedly connected to the side wall of the second rotating support rod (404). The second grinding protrusions (424) are fixedly connected to the side wall of the grinding block (421) at equal intervals. The grinding frame (422) is fixedly connected to the inner side wall of the graphite grinding housing (1). The first grinding protrusions (423) are fixedly connected to the inner side wall of the grinding frame (422). The positions of the grinding block (421) and the grinding frame (422) correspond to each other. The positions of the first grinding protrusion (423) and the second grinding protrusion (424) are staggered. The fixed toothed ring (425) is fixedly connected to the top side wall of the grinding frame (422).

8. The graphite raw material grinder according to claim 1, characterized in that: The feeding structure (5) includes a feeding housing (501), a third transmission wheel (502), a first transmission belt (503), a feeding screw (504) and a first feeding pipe (505). The feeding housing (501) is fixedly connected to the side wall of the graphite grinding housing (1). The feeding screw (504) is rotatably connected in the feeding housing (501). The top of the feeding screw (504) extends out of the feeding housing (501) and is fixedly connected to the third transmission wheel (502). The first transmission belt (503) is sleeved between the third transmission wheel (502) and the first transmission wheel (403). The first feeding pipe (505) is fixedly connected to the top of the side wall of the feeding housing (501). The other end of the first feeding pipe (505) extends into the graphite grinding housing (1) and is fixedly connected to the feeding housing (301). The first feeding pipe (505) is inclined.

9. The graphite raw material grinder according to claim 1, characterized in that: A second feeding pipe (6) is fixedly connected to the side wall of the graphite grinding housing (1) where it is connected to the feeding housing (501).

10. The graphite raw material grinder according to claim 1, characterized in that: The cleaning structure (8) includes a second support rod (801), a fourth transmission wheel (802), a second transmission belt (803), a second rotating rod (804), and a cleaning brush (805). The second support rod (801) is fixedly connected to the inner side wall of the graphite grinding housing (1). The second rotating rod (804) is rotatably connected to the second support rod (801). The bottom of the second rotating rod (804) is fixedly connected to the cleaning brush (805). The cleaning brush (805) is attached to the side wall of the screening mesh (411). The top of the second rotating rod (804) is fixedly connected to the fourth transmission wheel (802). A second transmission belt (803) is sleeved between the fourth transmission wheel (802) and the second transmission wheel (406).

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