Energy-saving graphite grinding and grading device and using method thereof

Abstract

The invention discloses an energy-saving graphite grinding and grading device, which relates to the technical field of graphite grinding, and comprises a bottom plate, the top of which is provided with a grinding assembly; graphite raw materials are intermittently fed between the crushing rollers through continuous shaking of the vibrating plate, the situation that the crushing effect is poor when a large number of graphite raw materials enter the crushing rollers is avoided, the uniformity of the graphite particle size is improved, a small number of graphite raw materials enter the crushing rollers repeatedly, and the situation that a motor is difficult to crush due to accumulation of a large number of graphite raw materials is avoided; the motor does not need to increase power, so that energy-saving crushing is realized; when graphite raw materials continuously roll, heated air is fed from the bottom, so that the graphite raw materials make more thorough contact with the heated air, water in the graphite raw materials is effectively evaporated, the situation that graphite with the water is prone to adhering to the crushing rollers after being crushed is prevented, the crushing effect of the graphite is guaranteed, and meanwhile waste is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of graphite crushing, and more specifically, to an energy-saving graphite grinding and classification device and its usage method. Background Art

[0002] The main purpose of graphite grinding is to process graphite raw materials into powders of different particle sizes to meet the requirements of specific industrial applications. Classification is a crucial step after grinding, and its purpose is to effectively separate the ground graphite powder according to particle size to obtain graphite powders in different particle size ranges to meet the requirements of different application scenarios.

[0003] In existing designs, a graphite grinding device is usually used to crush graphite, and then the graphite powder is transferred to an air classifier for classification. The graphite grinding device includes roller mills and vibration mills, etc. When in use, the graphite raw materials are directly poured into the grinding device, and a large amount of graphite raw materials accumulate after entering the grinding device. Due to the high toughness and slipperiness of graphite, the crushing effect of graphite will decline, the crushed particle size will be uneven, and the power consumption of the motor will increase. In order to achieve a good grinding effect of the graphite raw materials, it is necessary to dry the graphite raw materials before crushing to avoid the graphite powder sticking to the graphite crushing device due to moisture. Therefore, a drying device is also required. During the graphite crushing process, workers need to operate to transfer the graphite raw materials through different devices in sequence, which not only easily causes the dust generated during graphite crushing to spread but also affects the efficiency of graphite grinding.

[0004] To solve the above problems, the inventor has proposed an energy-saving graphite grinding and classification device and its usage method. Summary of the Invention

[0005] To solve the above technical problems, an energy-saving graphite grinding and classification device and its usage method are provided.

[0006] To achieve the above objectives, the present invention can adopt the following technical solutions: The present invention provides an energy-saving graphite grinding and classification device, including: a bottom plate, and a grinding assembly is arranged on the top of the bottom plate; The grinding assembly includes a grinding box fixedly connected to the top of the bottom plate, a drying box fixedly connected to the top of the grinding box, a motor fixedly installed on the top of the bottom plate. One side of the grinding box close to the motor is rotatably connected with a first gear and a second gear. The output end of the motor is fixedly connected to the middle of the first gear, and the first gear is meshed with the second gear. Two crushing rollers are symmetrically and rotatably connected in the grinding box. The first gear and the second gear are coaxially fixedly connected to the two crushing rollers respectively. A first pulley is coaxially fixedly connected to the side of the second gear away from the grinding box. One side of the drying box close to the motor is rotatably connected with a second pulley. A belt is sleeved on the surfaces of the first pulley and the second pulley. A rotating shaft is coaxially fixedly connected to the middle of the second pulley. One end of the rotating shaft passes through the grinding box and is fixedly connected with a cam.

[0007] Preferably, a drying chamber is provided in the powder grinding box. A vibrating plate is slidably connected in the drying chamber. Three material discharging grooves are formed in the vibrating plate, and the cam abuts against the vibrating plate.

[0008] Preferably, a drying assembly is provided on the powder grinding box. The drying assembly includes air inlet chambers symmetrically formed in the powder grinding box. An electric heater is fixedly installed in the air inlet chamber. A blower is fixedly installed on one side of the powder grinding box close to the motor. The output end of the blower is fixedly connected with an air delivery pipe. The ports of the air delivery pipe far away from the blower respectively lead to the two air inlet chambers. The drying chamber is communicated with the two air inlet chambers. Rotating rods are rotatably connected at the joints of the drying chamber and the two air inlet chambers. Baffle plates I are respectively fixedly connected to the surfaces of the two rotating rods. One ends of the two rotating rods penetrate out of the drying box to the outside.

[0009] Preferably, the electric heater is located at the top in the air inlet chamber, and the joint of the air delivery pipe and the air inlet chamber is aligned with the electric heater.

[0010] Preferably, a switching assembly is provided on one side of the powder grinding box. The switching assembly includes a gear III fixedly connected to the end of the rotating rod that penetrates out of the drying box. On one side of the drying box close to the motor, chute plates I are symmetrically fixedly connected. A rack is slidably connected in the chute plate I. The rack is meshed with the chute plate I. A cylinder I is fixedly installed on one side of the drying box close to the motor. A traction rod is fixedly connected to the output end of the cylinder I. A sliding sleeve is slidably connected to the surface of the traction rod. A connecting rod is fixedly connected to the outer surface of the sliding sleeve. A moving seat is fixedly connected to one side of the connecting rod far away from the sliding sleeve.

[0011] Preferably, chute plates II are symmetrically fixedly connected to the top of the moving seat. A plug rod is fixedly connected to one end of each rack far away from the chute plate I. The end of the plug rod far away from the rack is slidably connected in the chute plate II.

[0012] Preferably, three baffle plates II are slidably connected in the vibrating plate. Sliding rods are fixedly connected to both sides of the three baffle plates II. One ends of the two sliding rods penetrate out of the drying box. The ends of the two sliding rods that penetrate out of the drying box penetrate into the vibrating plate. The two sliding rods are slidably connected with the drying box. The ends of the two sliding rods that penetrate out of the drying box are both fixedly connected to the moving seat.

[0013] Preferably, a material discharging port is provided below the drying chamber in the drying box. Blowing ports are provided below the two air inlet chambers in the drying box. The material discharging port and the blowing ports are communicated with the powder grinding box.

[0014] Preferably, a grading component is provided on the top of the bottom plate. The grading component includes a grading box fixedly installed on the side of the bottom plate away from the grinding box. The two sides of the grading box are through, and the grading box is communicated with the grinding box. Three sieve plates are fixedly connected in the grading box. Three rotating plates are rotatably connected to the bottom plate. A cylinder two is rotatably connected to the bottom of the bottom plate. The movable end of the cylinder two is rotatably connected to a cross bar. Six pull rods are rotatably connected to the cross bar. Two pull rods are in a group. The ends of the three groups of pull rods away from the cross bar are respectively rotatably connected to the three rotating plates.

[0015] A use method of an energy-saving graphite grinding and grading device includes the following steps: Step 1: Pour lumpy graphite into the drying box so that it enters the drying chamber and lands on the vibrating plate. Step 2: Start the motor, electric heater and blower at the same time, so that the cam rotates to push the vibrating plate to vibrate continuously, and the lumpy graphite raw material is preliminarily separated. At the same time, the air introduced by the blower is heated by the electric heater and blown from the bottom of the drying chamber to the bottom of the graphite raw material for drying. Step 3: After drying, turn off the motor, electric heater and blower at the same time, and start the cylinder one to extend it. Under the cooperation of the traction rod, sliding sleeve and moving seat, pull the baffle two away from the feeding chute, so that the graphite raw material can pass through the feeding chute. During the extension of the cylinder one, the chute plate two cooperates with the insertion rod, so that the rack drives the baffle one to rotate 90 degrees through the gear three and the rotating rod, so that the bottom of the drying chamber is closed and the air inlet chamber is communicated with the blowing port. Step 4: Start the motor and blower again, so that the cam drives the vibrating plate to vibrate continuously to intermittently feed the graphite raw material between the crushing rollers. At the same time, the air flow sent by the blower is blown into the space between the crushing rollers through the air inlet chamber and the blowing port, driving the graphite powder crushed by the crushing rollers to flow to the bottom of the crushing rollers. Step 5: The graphite powder reaches the bottom of the grinding box under the action of the air flow, and is carried into the grading box by the air flow under the condition that the grinding box is connected to the grading box. Step 6: The graphite powder enters the grading box under the action of the air flow and contacts the sieve plate. Under the action of the air flow, the graphite powder continuously tumbles at the sieve plate for screening, and three-stage grading is realized under the action of the three sieve plates. Step 7: After screening, turn off the blower. The graphite powder falls on the top of the rotating plate under the action of gravity. Start the cylinder two to contract its movable end. The cylinder two pulls the three rotating plates to rotate and open through the cross bar and the pull rods, and discharges the screened three-stage graphite powder from the grading box.

[0016] As described above, the characteristics and advantages of an energy-saving graphite grinding and grading device in the present invention are: Through vibrating feeding, graphite raw materials can be intermittently fed between the crushing rollers, preventing a large amount of graphite raw materials from being fed onto the crushing rollers, which would otherwise result in poor crushing effects. This improves the uniformity of the graphite particle size. Frequent and small-scale feeding can avoid the accumulation or caking blockage of the crushing rollers. During the vibrating feeding process, the mechanical oscillation generated can initially separate the graphene sheets, reducing the effect of the interlayer van der Waals force during subsequent crushing, lowering the probability of secondary agglomeration, increasing the dispersion efficiency before crushing, and allowing the graphite raw materials to enter between the crushing rollers in small amounts and multiple times, preventing a large amount of graphite raw materials from accumulating and making it difficult for the motor to crush. There is no need to increase the power of the motor, thus achieving energy-saving crushing; By sending hot air from the bottom when the graphite raw materials are continuously tumbling due to vibration, the hot air can achieve heat diffusion through air circulation, avoiding local high-temperature aggregation, reducing overheating of the graphite raw materials. Furthermore, the hot air can diffuse more extensively in the graphene raw materials. At the same time, the hot air blowing can quickly remove the moisture or residual solvents adsorbed on the surface of the graphene raw materials, reducing their viscosity, preventing wet particles from accumulating and forming lumps at the feed inlet, thereby reducing the risk of equipment blockage and improving the feeding stability. Moreover, it makes the contact between the graphite raw materials and the hot air more thorough, effectively evaporating the internal moisture, preventing the situation where the crushed graphite with moisture is easily adhered to the crushing rollers, ensuring the crushing effect of the graphite and avoiding waste; By sending air flow between the crushing rollers, it can not only carry away the crushed graphite powder on the surface of the crushing rollers but also guide the graphite powder, making it move synchronously with the air flow, avoiding the situation where the crushed graphite powder is easily lifted and diffused into the surrounding environment, reducing waste; By driving the graphite powder to move through the air flow and passing it through multiple filter screens in sequence, graphite powders of different sizes can come into full contact with the filter screens for filtration and grading. Under the condition that the graphite powder is constantly tumbling and contacting the filter screens, the grading effect of the graphite is improved, and the diffusion of the graphite powder into the environment is further prevented.

[0017] Through a small amount of electric structures, the drying, crushing, and grading effects of the graphite powder can be achieved without using different devices, reducing the power consumption of the devices. Moreover, different steps are completed within the device, saving the process of the graphite raw materials' turnover in different devices, being time-saving and labor-saving. At the same time, drying and other steps are carried out in a small amount and evenly between the crushing rollers for the graphene raw materials to be crushed, so that the crushing rollers will not have a greater torque due to reasons such as accumulation and friction during crushing, thereby achieving the purpose of energy-saving for the motors on the crushing rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional schematic diagram of the overall structure shown in the present invention; Figure 2 is a three-dimensional schematic diagram of the overall structure shown in the present invention; Figure 3Schematic perspective sectional view of the overall structure shown in the present invention; Figure 4 Enlarged view of the partial structure shown in the present invention; Figure 5 Schematic perspective sectional view of the vibrating plate structure shown in the present invention; Figure 6 Shown in the present invention Figure 3 Enlarged view at position A in; Figure 7 Enlarged view of the partial structure shown in the present invention; Figure 8 Schematic perspective sectional view of the drying component structure shown in the present invention; Figure 9 Schematic perspective sectional view of the internal structure of the vibrating plate shown in the present invention; Figure 10 Schematic perspective view of the switching component structure shown in the present invention.

[0019] Among them, the reference numerals in the present invention are: 1, bottom plate; Grinding component: 201, grinding box; 202, drying box; 203, motor; 204, gear one; 205, gear two; 206, crushing roller; 207, pulley one; 208, pulley two; 209, rotating shaft; 210, cam; 211, drying cavity; 212, vibrating plate; 213, feeding chute; Drying component: 301, air inlet cavity; 302, electric heater; 303, blower; 304, air delivery pipe; 305, rotating rod; 306, baffle one; Switching component: 401, gear three; 402, groove plate one; 403, rack; 404, cylinder one; 405, traction rod; 406, sliding sleeve; 407, connecting rod; 408, moving seat; 409, groove plate two; 410, inserting rod; 411, baffle two; 412, sliding rod; 413, discharging opening; 414, blowing opening; Classification component: 501, classification box; 502, sieve plate; 503, rotating plate; 504, cylinder two; 505, cross bar; 506, pull rod. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0021] Embodiment 1: Refer to Figures 1 to 10As shown in the figure, an embodiment provided by the present invention, a kind of energy-saving graphite powder grinding and classifying device will be elaborated in detail as follows: An energy-saving graphite powder grinding and classifying device, such as Figures 1 to 6 and Figure 9 shown, includes: a bottom plate 1, and a powder grinding assembly is arranged on the top of the bottom plate 1; The powder grinding assembly includes a powder grinding box 201 fixedly connected to the top of the bottom plate 1, a drying box 202 is fixedly connected to the top of the powder grinding box 201, a motor 203 is fixedly installed on the top of the bottom plate 1, a first gear 204 and a second gear 205 are rotatably connected to one side of the powder grinding box 201 close to the motor 203, the output end of the motor 203 is fixedly connected to the middle of the first gear 204, the first gear 204 is meshed with the second gear 205, two crushing rollers 206 are symmetrically rotatably connected in the powder grinding box 201, the first gear 204 and the second gear 205 are respectively coaxially fixedly connected to the two crushing rollers 206, a first pulley 207 is coaxially fixedly connected to the side of the second gear 205 away from the powder grinding box 201, a second pulley 208 is rotatably connected to one side of the drying box 202 close to the motor 203, a belt is sleeved on the surfaces of the first pulley 207 and the second pulley 208, and the first pulley 207 drives the second pulley 208 to rotate through the belt, a rotating shaft 209 is coaxially fixedly connected to the middle of the second pulley 208, one end of the rotating shaft 209 passes through the powder grinding box 201 and is fixedly connected to a cam 210, a drying cavity 211 is arranged in the powder grinding box 201, a vibrating plate 212 is slidably connected in the drying cavity 211, the vibrating plate 212 can slide up and down in the drying cavity 211, three material discharging grooves 213 are formed in the vibrating plate 212, the three material discharging grooves 213 are equidistantly arranged on the vibrating plate 212, and the cam 210 abuts against the vibrating plate 212.

[0022] Furthermore, as Figures 1 to 6 shown, a drying assembly is arranged on the powder grinding box 201, the drying assembly includes air inlet cavities 301 symmetrically formed on the powder grinding box 201, an electric heater 302 is fixedly installed in the air inlet cavities 301, a blower 303 is fixedly installed on one side of the powder grinding box 201 close to the motor 203, the output end of the blower 303 is fixedly connected to an air delivery pipe 304, the ports of the air delivery pipe 304 away from the blower 303 respectively lead to the two air inlet cavities 301, the drying cavity 211 is communicated with the two air inlet cavities 301, rotating rods 305 are rotatably connected to the joints of the drying cavity 211 and the two air inlet cavities 301, baffles 306 are respectively fixedly connected to the surfaces of the two rotating rods 305, one ends of the two rotating rods 305 penetrate through the drying box 202 to the outside, the electric heater 302 is located at the top in the air inlet cavity 301, and the joint of the air delivery pipe 304 and the air inlet cavity 301 is aligned with the electric heater 302, so as to facilitate the blown air to take away heat.

[0023] Furthermore, as Figures 4 to 6 andFigure 9 As shown, a switching component is provided on one side of the grinding box 201. The switching component includes a third gear 401 fixedly connected to one end of the rotating rod 305 passing through the drying box 202. On one side of the drying box 202 close to the motor 203, a first groove plate 402 is symmetrically and fixedly connected. A rack 403 is slidably connected in the first groove plate 402, and the rack 403 is meshed with the first groove plate 402. A first cylinder 404 is fixedly installed on one side of the drying box 202 close to the motor 203. A traction rod 405 is fixedly connected to the output end of the first cylinder 404. A sliding sleeve 406 is slidably connected to the surface of the traction rod 405. A connecting rod 407 is fixedly connected to the outer surface of the sliding sleeve 406. A moving seat 408 is fixedly connected to one side of the connecting rod 407 away from the sliding sleeve 406. Second groove plates 409 are symmetrically and fixedly connected to the top of the moving seat 408, and the two second groove plates 409 are horizontally inclined in the direction away from each other. One end of each rack 403 away from the first groove plate 402 is fixedly connected with an insertion rod 410. One end of the insertion rod 410 away from the rack 403 is slidably connected in the second groove plate 409, so that when the moving seat 408 moves up and down and drives the second groove plate 409 to slide up and down, the insertion rod 410 is still located in the second groove plate 409 and maintains the limiting relationship. Three second baffles 411 are slidably connected in the vibrating plate 212. The three second baffles 411 are arranged at equal intervals. The distance between the three second baffles 411 is the same as that of the three feeding slots 213. Both sides of the three second baffles 411 are fixedly connected with sliding rods 412. One end of the two sliding rods 412 penetrates into the drying box 202. One end of the two sliding rods 412 penetrating into the drying box 202 penetrates into the vibrating plate 212. The size of the sliding connection between the drying box 202 and the sliding rod 412 is larger than the thickness of the sliding rod 412, so that the sliding rod 412 can slide up and down a small distance in the drying box 202. The two sliding rods 412 are slidably connected with the drying box 202. One end of the two sliding rods 412 penetrating out of the drying box 202 is fixedly connected with the moving seat 408. A feeding port 413 is provided below the drying cavity 211 in the drying box 202. Blowing ports 414 are provided below the two air inlet cavities 301 in the drying box 202. The feeding port 413 and the blowing ports 414 are communicated with the grinding box 201.

[0024] Further, as Figure 1 and Figure 10As shown in the figure, a grading component is provided on the top of the bottom plate 1. The grading component includes a grading box 501 fixedly installed on the side of the bottom plate 1 away from the grinding box 201. Three sieve plates 502 are fixedly connected inside the grading box 501, and the diameters of the three sieve plates 502 decrease in sequence. Three rotating plates 503 are rotatably connected to the bottom plate 1. A second cylinder 504 is rotatably connected to the bottom of the bottom plate 1. The movable end of the second cylinder 504 is rotatably connected to a cross bar 505. Six pull rods 506 are rotatably connected to the cross bar 505. Two pull rods 506 form a group. The ends of the three groups of pull rods 506 away from the cross bar 505 are respectively rotatably connected to the three rotating plates 503. Both sides of the grading box 501 are through, and the grading box 501 is communicated with the grinding box 201.

[0025] Combined with the above embodiments, the following is the entire working process and working principle of the above embodiments: The initial state is: The rack 403 is located on the side of the first groove plate 402 close to the second groove plate 409. The first baffle 306 blocks the blowing port 414. The drying chamber 211 is in communication with the air inlet chamber 301. The movable end of the first cylinder 404 does not extend. The insertion rod 410 is located on the side of the second groove plate 409 away from the drying box 202. The three second baffles 411 block the three material discharge grooves 213. The second cylinder 504 does not contract, and the rotating plate 503 does not rotate.

[0026] The working state is: Drying graphite: After pouring the massive graphite raw material into the drying chamber 211, the motor 203 and the blower 303 are started. After the motor 203 is started, it drives the first gear 204 to rotate. The first gear 204 drives the second gear 205 to rotate, so that the second gear 205 drives the second pulley 208 to rotate through the first pulley 207 and the belt, and then drives the cam 210 to rotate through the rotating shaft 209. When the cam 210 rotates, under the action of the protruding part, when the protruding part contacts the vibrating plate 212, the vibrating plate 212 is pushed upward. When the cam 210 rotates so that the protruding part is away from the vibrating plate 212, the vibrating plate 212 slides downward in the drying chamber 211 under the action of gravity. Therefore, when the cam 210 rotates continuously, the vibrating plate 212 vibrates to shake the graphite raw material open. At the same time, the blower 303 blows air into the air inlet chamber 301 through the air delivery pipe 304. After the air enters the air inlet chamber 301, it first contacts the electric heater 302. After being heated by the electric heater 302, the air then enters the drying chamber 211, so as to cooperate with the vibrating plate 212 to dry the graphite raw material with heated air while the graphite raw material is continuously shaken, which is faster and effectively improves the drying efficiency of the graphite raw material.

[0027] Switching state: After the graphite raw material is dried, the cylinder 1 404 starts and extends the movable end, so that the movable end drives the movable seat 408 and the connecting rod 407 to move away from the drying box 202 through the traction rod 405 and the sliding sleeve 406. The movable seat 408 pulls the sliding rod 412 fixedly connected to it, so that the sliding rod 412 drives the three baffles 2 411 to slide in the direction of the movable seat 408 until the baffle 2 411 is misaligned with the discharge chute 213, and the discharge chute 213 is no longer blocked by the baffle 2 411. The graphite raw material can fall into the grinding box 201 from the feeding chute 213. During this process, the movable seat 408 drives the slot plate 2 409 to move away from the drying box 202, so that the insertion rod 410 cooperates with the inclined groove of the slot plate 2 409. When the slot plate 2 409 moves away from the drying box 202, the rack 403 slides toward the slot plate 1 402, thereby driving the gear 3 401 to rotate. The gear 3 401 drives the baffle 1 306 to rotate through the rotating rod 305, so that the baffle 1 306 rotates. Figure 6 The middle state rotates counterclockwise by ninety degrees, at which time the drying chamber 211 and the air inlet chamber 301 are no longer connected, and the air inlet chamber 301 is connected to the blowing port 414, completing the switching from the drying state to the crushing state.

[0028] Even feeding: After switching to the crushing state, the motor 203 rotates again through gear 1 204, gear 2 205, pulley 1 207, pulley 2 208 and rotating shaft 209 to make the cam 210 rotate. The vibration plate 212 shakes again to drive the graphite raw material to move. At this time, part of the graphite raw material will be shaken off from the discharge chute 213 and fall into the grinding box 201 from the discharge port 413, so that the graphite raw material intermittently enters the grinding box 201 when the vibration plate 212 is constantly shaking, avoiding the situation where all the graphite raw materials enter between the crushing rollers 206 and cause poor grinding effect, thereby improving the grinding effect of graphite, and preventing a large amount of graphite raw materials from entering the crushing rollers 206. The situation that the motor 203 increases the output power when the crushing rollers 206 are difficult to crush will not occur, thereby reducing the consumption of the motor 203 while ensuring the grinding effect, and achieving energy saving.

[0029] Reduce residue: After the graphite is shaken from the top of the vibrating plate 212 and falls between the crushing rollers 206, the motor 203 drives the crushing rollers 206 to continue rotating through the first gear 204 and the second gear 205 to crush the graphite raw material. At this time, the electric heater 302 has been turned off. The air flow sent into the air inlet chamber 301 through the air delivery pipe 304 by the blower 303 enters between the two crushing rollers 206 under the guiding action of the blowing port 414, and passes through the two crushing rollers 206 to reach the bottom of the grinding box 201. Under the continuous action of the air flow passing through the surface of the crushing rollers 206, the powder that is easy to remain on the surface of the crushing rollers 206 after the graphite is crushed will be carried away by the air flow, so as to maintain the crushing effect of the crushing rollers 206 on the graphite.

[0030] Blowing and grading: After the ground graphite is carried to the bottom of the grinding box 201 by the air flow, since the grinding box 201 is connected to the sieve plate 502 and the side of the sieve plate 502 away from the grinding box 201 is not closed, the air flow drives the graphite powder into the grading box 501. After the air flow drives the graphite powder into the grading box 501, the graphite powder tumbles continuously and contacts the sieve plate 502. Since the caliber of the sieve plate 502 decreases in turn, the fine graphite powder can pass through the two sieve plates 502. The graphite powder is divided into three grades by the sieve plate 502 according to its size. Subsequently, the air flow is blown out through the last sieve plate 502, so that the air flow in the device is circulated, thus realizing the effect of air flow assisting in the material separation of graphite. And during the grading process, the graphite powder tumbles continuously and contacts the sieve plate 502, and the grading is more thorough.

[0031] Automatic discharging: After the grading of the graphite powder is completed, the motor 203 and the blower 303 are powered off. The graphite powder of different grades falls on the tops of the three rotating plates 503. Subsequently, the second cylinder 504 is started and the movable end contracts, pulling the cross bar 505 to move towards the second cylinder 504, so that the cross bar 505 drives the rotating plate 503 to rotate through the pull rod 506, and thus the rotating plate 503 rotates downward to open. At this time, the graphite powder of different grades slides down along the inclined rotating plate 503, realizing the effect of automatic discharging by gravity, which saves time and effort.

[0032] Embodiment 2: A method for using an energy-saving graphite grinding and grading device includes the following steps: Step 1: Pour the lumpy graphite into the drying box 202 so that it enters the drying chamber 211 and falls on the vibrating plate 212; Step 2: Start the motor 203, the electric heater 302 and the blower 303 at the same time, so that the cam 210 rotates to push the vibrating plate 212 to vibrate continuously, and the lumpy graphite raw material is preliminarily separated. At the same time, the air input by the blower 303 is heated by the electric heater 302 and blown from the bottom of the drying chamber 211 to the bottom of the graphite raw material for drying; Step 3: After the drying is completed, simultaneously turn off the motor 203, the electric heater 302, and the blower 303, and start the cylinder 1 404 to extend it. Under the cooperation of the towing bar 405, the sliding sleeve 406, and the moving seat 408, pull the baffle 2 411 away from the blanking chute 213, so that the graphite raw material can pass through the blanking chute 213. During the extension of the cylinder 1 404, the chute plate 2 409 cooperates with the insertion rod 410, so that the rack 403 drives the baffle 1 306 to rotate 90 degrees through the gear 3 401 and the rotating rod 305, so that the bottom of the drying chamber 211 is closed and the air inlet chamber 301 is communicated with the blowing port 414; Step 4: Start the motor 203 and the blower 303 again, so that the cam 210 drives the vibrating plate 212 to vibrate continuously, intermittently feeding the graphite raw material between the crushing rollers 206. At the same time, the air flow sent by the blower 303 blows into the space between the crushing rollers 206 through the air inlet chamber 301 and the blowing port 414, driving the graphite powder crushed by the crushing rollers 206 to flow to the bottom of the crushing rollers 206; Step 5: The graphite powder reaches the bottom of the grinding box 201 under the action of the air flow, and is carried into the classification box 501 by the air flow under the condition that the grinding box 201 is connected to the classification box 501; Step 6: The graphite powder enters the classification box 501 under the action of the air flow and contacts the sieve plate 502. Under the action of the air flow, the graphite powder continuously tumbles at the sieve plate 502 for screening, and three-stage classification is realized under the action of the three sieve plates 502; Step 7: After the screening is completed, turn off the blower 303. The graphite powder falls on the top of the rotating plate 503 under the action of gravity. Start the cylinder 2 504 to contract its movable end. The cylinder 2 504 pulls the three rotating plates 503 to rotate and open through the cross bar 505 and the pull rod 506, discharging the three-stage graphite powder separated by the sieve out of the classification box 501.

[0033] The above are only the embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An energy-saving graphite grinding and classification device, characterized in that Including: A bottom plate (1), on the top of the bottom plate (1) is provided with a powder grinding assembly; The powder grinding assembly includes a powder grinding box (201) fixedly connected to the top of the bottom plate (1). A drying box (202) is fixedly connected to the top of the powder grinding box (201). A motor (203) is fixedly installed on the top of the bottom plate (1). One side of the powder grinding box (201) close to the motor (203) is rotatably connected with a first gear (204) and a second gear (205). The output end of the motor (203) is fixedly connected to the middle of the first gear (204). The first gear (204) is meshed with the second gear (205). Two crushing rollers (206) are symmetrically and rotatably connected in the powder grinding box (201). The first gear (204) and the second gear (205) are respectively coaxially fixedly connected with the two crushing rollers (206). One side of the second gear (205) away from the powder grinding box (201) is coaxially fixedly connected with a first pulley (207). One side of the drying box (202) close to the motor (203) is rotatably connected with a second pulley (208). A belt is sleeved on the surfaces of the first pulley (207) and the second pulley (208). The middle of the second pulley (208) is coaxially fixedly connected with a rotating shaft (209). One end of the rotating shaft (209) passes through the powder grinding box (201) and is fixedly connected with a cam (210).

2. The energy-saving graphite grinding and classification device according to claim 1, wherein A drying cavity (211) is arranged in the powder grinding box (201). A vibrating plate (212) is slidably connected in the drying cavity (211). Three material discharging grooves (213) are arranged on the vibrating plate (212). The cam (210) abuts against the vibrating plate (212).

3. An energy-saving graphite grinding and classification device according to claim 2, characterized in that, A drying assembly is arranged on the powder grinding box (201). The drying assembly includes air inlet cavities (301) symmetrically arranged on the powder grinding box (201). An electric heater (302) is fixedly installed in the air inlet cavity (301). A blower (303) is fixedly installed on one side of the powder grinding box (201) close to the motor (203). The output end of the blower (303) is fixedly connected with an air delivery pipe (304). The ports of the air delivery pipe (304) away from the blower (303) respectively lead to the two air inlet cavities (301). The drying cavity (211) is communicated with the two air inlet cavities (301). Rotating rods (305) are rotatably connected at the joints of the drying cavity (211) and the two air inlet cavities (301). Baffle plates one (306) are respectively fixedly connected to the surfaces of the two rotating rods (305). One ends of the two rotating rods (305) penetrate out of the drying box (202) to the outside.

4. An energy-saving graphite grinding and classification device according to claim 3, characterized in that The electric heater (302) is located at the top inside the air inlet cavity (301). The joint of the air delivery pipe (304) and the air inlet cavity (301) is aligned with the electric heater (302).

5. An energy-saving graphite grinding and classification device according to claim 4, characterized in that, On one side of the grinding powder box (201), a switching component is provided. The switching component includes a third gear (401) fixedly connected to one end of the rotating rod (305) passing through the drying box (202). On one side of the drying box (202) close to the motor (203), a first groove plate (402) is symmetrically and fixedly connected. A rack (403) is slidably connected in the first groove plate (402), and the rack (403) is meshed with the first groove plate (402). On one side of the drying box (202) close to the motor (203), a first air cylinder (404) is fixedly installed. A traction rod (405) is fixedly connected to the output end of the first air cylinder (404). A sliding sleeve (406) is slidably connected to the surface of the traction rod (405). A connecting rod (407) is fixedly connected to the outer surface of the sliding sleeve (406). A moving seat (408) is fixedly connected to one side of the connecting rod (407) away from the sliding sleeve (406).

6. The energy-saving graphite grinding and classification device according to claim 5, characterized in that, On the top of the moving seat (408), a second groove plate (409) is symmetrically and fixedly connected. One end of each rack (403) away from the first groove plate (402) is fixedly connected with an inserting rod (410). One end of the inserting rod (410) away from the rack (403) is slidably connected in the second groove plate (409).

7. An energy-saving graphite grinding and classification device according to claim 6, characterized in that, Three second baffles (411) are slidably connected in the vibrating plate (212). Both sides of the three second baffles (411) are fixedly connected with a sliding rod (412). One end of the two sliding rods (412) penetrates into the drying box (202). One end of the two sliding rods (412) penetrating into the drying box (202) penetrates into the vibrating plate (212). The two sliding rods (412) are slidably connected with the drying box (202). One end of the two sliding rods (412) penetrating out of the drying box (202) is fixedly connected with the moving seat (408).

8. An energy-saving graphite grinding and classification device according to claim 7, characterized in that A blanking port (413) is arranged below the drying cavity (211) in the drying box (202). Blowing ports (414) are arranged below the two air inlet cavities (301) in the drying box (202). The blanking port (413) and the blowing ports (414) are communicated with the grinding powder box (201).

9. An energy-saving graphite grinding and classification device according to claim 1, characterized in that, A grading component is arranged on the top of the bottom plate (1). The grading component includes a grading box (501) fixedly installed on one side of the bottom plate (1) away from the grinding powder box (201). The two sides of the grading box (501) are through. The grading box (501) is communicated with the grinding powder box (201). Three sieve plates (502) are fixedly connected in the grading box (501). Three rotating plates (503) are rotatably connected to the bottom plate (1). A second air cylinder (504) is rotatably connected to the bottom of the bottom plate (1). The movable end of the second air cylinder (504) is rotatably connected with a cross bar (505). Six pull rods (506) are rotatably connected to the cross bar (505). Two pull rods (506) are in a group. One end of the three groups of pull rods (506) away from the cross bar (505) is respectively rotatably connected with the three rotating plates (503).

10. The usage method of an energy-saving graphite grinding and classification device according to claim 9, characterized in that, Apply an energy-saving graphite grinding and grading device as described in claim 9, and the using method includes the following steps: Step 1: Pour the lumpy graphite into the drying box (202) so that it enters the drying cavity (211) and lands on the vibrating plate (212). Step 2: Start the motor (203), the electric heater (302) and the blower (303) simultaneously, so that the cam (210) rotates to push the vibrating plate (212) to vibrate continuously, preliminarily separating the graphite raw material in the soil clods. At the same time, the air entering and leaving the blower (303) is heated by the electric heater (302) and blown from the bottom of the drying chamber (211) to the bottom of the graphite raw material for drying; Step 3: After drying is completed, turn off the motor (203), the electric heater (302) and the blower (303) simultaneously, and start the first cylinder (404) to extend it. With the cooperation of the traction rod (405), the sliding sleeve (406) and the moving seat (408), pull the second baffle (411) away from the blanking chute (213), so that the graphite raw material can pass through the blanking chute (213). During the extension of the first cylinder (404), the second chute plate (409) cooperates with the insertion rod (410), so that the rack (403) drives the first baffle (306) to rotate 90 degrees through the third gear (401) and the rotating rod (305), so that the bottom of the drying chamber (211) is closed and the air inlet chamber (301) is communicated with the blowing port (414); Step 4: Start the motor (203) and the blower (303) again, so that the cam (210) drives the vibrating plate (212) to vibrate continuously, intermittently feeding the graphite raw material between the crushing rollers (206). At the same time, the air flow sent by the blower (303) is blown into the space between the crushing rollers (206) through the air inlet chamber (301) and the blowing port (414), driving the graphite powder crushed by the crushing rollers (206) to flow to the bottom of the crushing rollers (206); Step 5: The graphite powder reaches the bottom of the grinding powder box (201) under the action of the air flow, and is carried into the classification box (501) by the air flow under the condition that the grinding powder box (201) is connected to the classification box (501); Step 6: The graphite powder enters the classification box (501) under the action of the air flow and contacts the sieve plate (502). Under the action of the air flow, the graphite powder continuously tumbles at the sieve plate (502) for screening, and three-stage classification is realized under the action of the three sieve plates (502); Step 7: After screening is completed, turn off the blower (303). The graphite powder falls on the top of the rotating plate (503) under the action of gravity. Start the second cylinder (504) to contract its movable end. The second cylinder (504) pulls the three rotating plates (503) to rotate and open through the cross bar (505) and the pull rod (506), discharging the three-stage graphite powder separated by screening from the classification box (501).

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