Energy-saving graphite powder grading device and use method thereof

Abstract

This invention discloses an energy-saving graphite grinding and grading device, relating to the field of graphite pulverization technology. It includes: a base plate with a grinding assembly mounted on its top; intermittently feeding graphite raw material between the grinding rollers via continuous vibration of a vibrating plate, avoiding poor pulverization when large amounts of graphite enter the rollers, improving the uniformity of graphite particle size, and preventing the accumulation of large amounts of graphite that would hinder motor pulverization, thus eliminating the need for increased motor power and achieving energy-saving pulverization; heating air is introduced from the bottom while the graphite raw material is continuously tumbling, ensuring more thorough contact between the graphite raw material and the heated air, effectively evaporating internal moisture, preventing moisture-laden graphite from easily sticking to the grinding rollers after pulverization, ensuring the pulverization effect of graphite while avoiding waste.

Description

Technical Field

[0001] This invention relates to the field of graphite pulverization technology, and more specifically, to an energy-saving graphite grinding and grading device and its usage method. Background Technology

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

[0003] Existing designs typically use graphite grinding devices to pulverize graphite, then transfer the graphite powder to an air classifier for classification. Graphite grinding devices include roller mills and vibratory mills. During use, the graphite raw material is directly poured into the grinding device. A large amount of graphite raw material accumulates after entering the grinding device. Due to the high toughness and slipperiness of graphite, the pulverization effect of graphite decreases, the particle size is uneven, and the power consumption of the motor increases. In order to improve the grinding effect of graphite raw material, it is necessary to dry the graphite raw material before pulverization to prevent the graphite powder from sticking to the graphite grinding device due to moisture. Therefore, a drying device is also required. In the graphite pulverization process, operators need to operate the graphite raw material to flow through different devices one after another. This not only makes it easy for the dust generated during graphite pulverization to spread, but also affects the efficiency of graphite pulverization.

[0004] To address the aforementioned problems, the inventors proposed an energy-saving graphite grinding and grading device and its usage method. Summary of the Invention

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

[0006] To achieve the above objectives, the present invention can be implemented using the following technical solutions:

[0007] The present invention provides an energy-saving graphite grinding and grading device, comprising: a base plate, and a grinding component disposed on the top of the base plate;

[0008] The grinding assembly includes a grinding box fixedly connected to the top of a base plate, a drying chamber fixedly connected to the top of the grinding box, a motor fixedly installed on the top of the base plate, a first gear and a second gear rotatably connected to the side of the grinding box near the motor, the output end of the motor fixedly connected to the middle of the first gear, the first gear and the second gear meshing, pulverizing rollers symmetrically rotatably connected inside the grinding box, the first gear and the second gear respectively coaxially fixedly connected to the two pulverizing rollers, a pulley first coaxially fixedly connected to the side of the second gear away from the grinding box, a second pulley rotatably connected to the side of the drying chamber near the motor, a belt is fitted on the surface 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 to a cam.

[0009] Preferably, the grinding chamber is provided with a drying chamber, and a vibrating plate is slidably connected in the drying chamber. The vibrating plate has three feeding grooves, and the cam abuts against the vibrating plate.

[0010] Preferably, the grinding chamber is equipped with a drying assembly, which includes symmetrically arranged air inlet chambers on the grinding chamber. An electric heater is fixedly installed in the air inlet chamber. A blower is fixedly installed on the side of the grinding chamber near the motor. An air supply pipe is fixedly connected to the output end of the blower. The port of the air supply pipe away from the blower leads to the two air inlet chambers respectively. The drying chamber is connected to the two air inlet chambers. A rotating rod is rotatably connected to the connection between the drying chamber and the air inlet chamber. A baffle is fixedly connected to the surface of the two rotating rods respectively. One end of the two rotating rods extends out of the drying chamber to the outside.

[0011] Preferably, the electric heater is located at the top of the air intake chamber, and the connection between the air supply pipe and the air intake chamber is aligned with the electric heater.

[0012] Preferably, a switching assembly is provided on one side of the grinding box. The switching assembly includes a gear three fixedly connected to one end of the rotating rod that extends out of the drying box. A slot plate one is symmetrically fixedly connected to the side of the drying box near the motor. A rack is slidably connected inside the slot plate one and meshes with the slot plate one. A cylinder one is fixedly installed on the side of the drying box near the motor. A traction rod is fixedly connected to the output end of the cylinder one. 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 movable seat is fixedly connected to the side of the connecting rod away from the sliding sleeve.

[0013] Preferably, the top of the movable seat is symmetrically fixedly connected with a second groove plate, and each rack has a rod fixedly connected to the end away from the first groove plate, and the end of the rod away from the rack is slidably connected inside the second groove plate.

[0014] Preferably, three baffles are slidably connected inside the vibrating plate, and sliding rods are fixedly connected to both sides of the three baffles. One end of two sliding rods extends out of the drying box, and the other end of two sliding rods extends into the vibrating plate. The two sliding rods are slidably connected to the drying box, and the ends of the two sliding rods extending out of the drying box are fixedly connected to the movable seat.

[0015] Preferably, a discharge port is provided below the drying chamber in the drying box, and a blowing port is provided below the two air inlet chambers in the drying box. The discharge port and the blowing port are connected to the grinding box.

[0016] Preferably, a grading assembly is provided on the top of the base plate. The grading assembly includes a grading box fixedly installed on the side of the base plate away from the grinding box. The grading box is open on both sides and connected to the grinding box. Three sieve plates are fixedly connected inside the grading box. Three rotating plates are rotatably connected to the base plate. A cylinder is rotatably connected to the bottom of the base plate. A crossbar is rotatably connected to the movable end of the cylinder. Six pull rods are rotatably connected to the crossbar. The pull rods are arranged in groups of two. The ends of the three groups of pull rods away from the crossbar are rotatably connected to the three rotating plates respectively.

[0017] The method of using an energy-saving graphite grinding and classifying device includes the following steps:

[0018] Step 1: Pour the lumps of graphite into the drying oven, allowing them to enter the drying chamber and fall onto the vibrating plate;

[0019] Step 2: Simultaneously start the motor, heater and blower, so that the cam rotates and drives the vibrating plate to vibrate continuously, which initially separates the soil-filled graphite raw materials. At the same time, the air entering and leaving the blower is heated by the heater and blown from the bottom of the drying chamber to the bottom of the graphite raw materials for drying.

[0020] Step 3: After drying is completed, the motor, heater and blower are turned off at the same time, and cylinder one is started to extend it. With the cooperation of the traction rod, sliding sleeve and moving seat, the baffle two is pulled away from the feeding trough, so that the graphite raw material can pass through the feeding trough. During the extension of cylinder one, the trough plate two cooperates with the insert rod, so that the rack drives the baffle one to rotate 90 degrees through gear three and rotating rod, thereby sealing the bottom of the drying chamber and connecting the air inlet chamber with the blowing port.

[0021] Step 4: Restart the motor and blower, so that the cam drives the vibrating plate to vibrate continuously, intermittently feeding the graphite raw material between the crushing rollers. At the same time, the airflow sent by the blower blows into the crushing rollers through the air inlet and the blowing port, causing the graphite powder after being crushed by the crushing rollers to flow to the bottom of the crushing rollers.

[0022] Step 5: The graphite powder reaches the bottom of the grinding chamber under the action of the airflow, and is carried into the classifier by the airflow when the grinding chamber is connected to the classifier.

[0023] Step 6: Graphite powder enters the classifier under the action of airflow and comes into contact with the sieve plate. Under the action of airflow, the graphite powder continuously rolls and is screened on the sieve plate. Three-stage classification is achieved under the action of three sieve plates.

[0024] Step 7: After screening, turn off the blower. The graphite powder falls to the top of the rotating plate under gravity. Start cylinder two to retract its moving end. Cylinder two pulls the three rotating plates to rotate and open through the crossbar and tie rod, and discharges the screened three-stage graphite powder from the grading box.

[0025] As described above, the features and advantages of the energy-saving graphite grinding and grading device of the present invention are as follows:

[0026] Vibration feeding allows graphite raw materials to be intermittently fed between the crushing rollers, preventing large amounts of graphite from being added to the rollers and resulting in poor crushing effect. This improves the uniformity of graphite particle size. Frequent, small-batch feeding avoids accumulation or blockage of the crushing rollers. The mechanical vibration generated during vibration feeding can initially separate graphene sheets, reducing the effect of interlayer van der Waals forces during subsequent crushing, lowering the probability of secondary agglomeration, and increasing the dispersion efficiency before crushing. Furthermore, the small-batch, multiple-time entry of graphite raw materials between the rollers prevents large amounts of graphite from accumulating and making it difficult for the motor to crush, eliminating the need to increase motor power and thus achieving energy-saving crushing.

[0027] By introducing heated air from the bottom while the graphite raw material is constantly tumbling due to vibration, the hot air achieves heat diffusion through airflow circulation. This avoids localized high temperature accumulation, reduces overheating of the graphite raw material, and allows the hot air to diffuse more extensively within the graphene raw material. At the same time, the hot air blowing can quickly remove moisture or residual solvents adsorbed on the surface of the graphene raw material, reducing its viscosity and preventing damp particles from accumulating at the feed inlet and forming clumps. This reduces the risk of equipment blockage and improves feeding stability, resulting in more thorough contact between the graphite raw material and the heated air. The internal moisture is effectively evaporated, preventing the graphite containing moisture from easily sticking to the crushing roller after crushing, ensuring the crushing effect of the graphite, and avoiding waste.

[0028] By introducing airflow between the crushing rollers, not only can the crushed graphite powder on the surface of the crushing rollers be carried away, but the graphite powder can also be guided to move synchronously with the airflow, thus avoiding the situation where the graphite powder is easily lifted up and spread to the surrounding environment, reducing waste.

[0029] The airflow moves the graphite powder through multiple filter screens, allowing the graphite powder of different sizes to fully contact the screens for filtration and classification. As the graphite powder tumbles and contacts the screens, the classification effect is improved, and the graphite powder is further prevented from diffusing into the environment.

[0030] The drying, pulverizing, and grading of graphite powder are achieved through a small number of electric mechanisms, eliminating the need for different devices and reducing the power consumption of the equipment. Furthermore, all steps are completed within the device, saving the process of transferring graphite raw materials between different devices. This makes it time-saving and labor-saving. At the same time, the steps of drying the graphene raw material to be pulverized by pulverizing it in small, even amounts between the pulverizing rollers prevent the pulverizing rollers from having a larger torque due to accumulation and friction, thereby achieving the purpose of energy saving of the motor on the pulverizing rollers. Attached Figure Description

[0031] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0033] Figure 3 This is a three-dimensional cross-sectional view of the overall structure shown in this invention;

[0034] Figure 4 This is an enlarged view of a partial structure shown in the present invention;

[0035] Figure 5 This is a three-dimensional cross-sectional view of the vibrating plate structure shown in this invention;

[0036] Figure 6 As shown in this invention Figure 3 Enlarged view of point A in the middle;

[0037] Figure 7 This is an enlarged view of a partial structure shown in the present invention;

[0038] Figure 8 This is a three-dimensional cross-sectional view of the drying assembly structure shown in this invention;

[0039] Figure 9 This is a three-dimensional cross-sectional view of the internal structure of the vibration plate shown in this invention;

[0040] Figure 10 This is a three-dimensional schematic diagram of the switching component structure shown in this invention.

[0041] In this invention, the reference numerals are: 1. base plate;

[0042] Grinding assembly: 201, Grinding box; 202, Drying box; 203, Motor; 204, Gear 1; 205, Gear 2; 206, Crushing roller; 207, Pulley 1; 208, Pulley 2; 209, Rotating shaft; 210, Cam; 211, Drying chamber; 212, Vibrating plate; 213, Feed chute;

[0043] Drying components: 301, air inlet chamber; 302, electric heater; 303, blower; 304, air supply pipe; 305, rotating rod; 306, baffle one;

[0044] Switching components: 401, Gear 3; 402, Slot plate 1; 403, Rack; 404, Cylinder 1; 405, Traction rod; 406, Sliding sleeve; 407, Connecting rod; 408, Moving seat; 409, Slot plate 2; 410, Insert rod; 411, Baffle 2; 412, Sliding rod; 413, Discharge port; 414, Blowing port;

[0045] Grading components: 501, grading box; 502, sieve plate; 503, rotating plate; 504, cylinder two; 505, crossbar; 506, pull rod. Detailed Implementation

[0046] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0047] Example 1: See Figures 1-10 As shown, this is an embodiment of the present invention, and the energy-saving graphite grinding and classifying device provided will be described in detail below:

[0048] An energy-saving graphite grinding and grading device, such as Figures 1-6 as well as Figure 9 As shown, it includes: a base plate 1, and a grinding assembly is provided on the top of the base plate 1;

[0049] The grinding assembly includes a grinding chamber 201 fixedly connected to the top of a base plate 1. A drying chamber 202 is fixedly connected to the top of the grinding chamber 201. A motor 203 is fixedly installed on the top of the base plate 1. Gear 1 204 and gear 205 are rotatably connected to the side of the grinding chamber 201 near the motor 203. The output end of the motor 203 is fixedly connected to the middle of gear 1 204. Gear 1 204 and gear 205 are meshed. Crushing rollers 206 are symmetrically rotatably connected inside the grinding chamber 201. Gear 1 204 and gear 205 are coaxially fixedly connected to the two crushing rollers 206 respectively. A pulley 207 is coaxially fixedly connected to the side of gear 205 away from the grinding chamber 201. The drying chamber 202 is located near the motor 203. One side of 03 is rotatably connected to a second pulley 208. The surfaces of the first pulley 207 and the second pulley 208 are covered with a belt, and the first pulley 207 drives the second pulley 208 to rotate through the belt. The middle of the second pulley 208 is coaxially fixedly connected to a rotating shaft 209. One end of the rotating shaft 209 passes through the grinding box 201 and is fixedly connected to a cam 210. The grinding box 201 is provided with a drying chamber 211. A vibrating plate 212 is slidably connected in the drying chamber 211. The vibrating plate 212 can slide up and down in the drying chamber 211. Three feeding grooves 213 are opened on the vibrating plate 212. The three feeding grooves 213 are equidistantly opened on the vibrating plate 212. The cam 210 abuts against the vibrating plate 212.

[0050] Furthermore, such as Figures 1-6 As shown, a drying assembly is provided on the grinding chamber 201. The drying assembly includes symmetrically arranged air inlets 301 on the grinding chamber 201. An electric heater 302 is fixedly installed in the air inlet 301. A blower 303 is fixedly installed on the side of the grinding chamber 201 near the motor 203. An air supply pipe 304 is fixedly connected to the output end of the blower 303. The port of the air supply pipe 304 away from the blower 303 leads to the two air inlets 301 respectively. The drying chamber 211 is connected to the two air inlets 301. A rotating rod 305 is rotatably connected to the connection between the drying chamber 211 and the air inlets 301. A baffle 306 is fixedly connected to the surface of the two rotating rods 305 respectively. One end of the two rotating rods 305 extends out of the drying chamber 202 to the outside. The electric heater 302 is located at the top inside the air inlet 301. The connection between the air supply pipe 304 and the air inlet 301 is aligned with the electric heater 302 so that the blown air can carry away the heat.

[0051] Furthermore, such as Figures 4-6 as well as Figure 9As shown, a switching assembly is provided on one side of the grinding chamber 201. The switching assembly includes a gear 401 fixedly connected to a rotating rod 305 extending out of one end of the drying chamber 202. A slotted plate 402 is symmetrically fixedly connected to the side of the drying chamber 202 near the motor 203. A rack 403 is slidably connected inside the slotted plate 402 and meshes with the slotted plate 402. A cylinder 404 is fixedly installed on the side of the drying chamber 202 near the motor 203. A traction rod 405 is fixedly connected to the output end of the cylinder 404. The surface of the traction rod 405... A sliding sleeve 406 is slidably connected. A connecting rod 407 is fixedly connected to the outer surface of the sliding sleeve 406. A movable seat 408 is fixedly connected to the side of the connecting rod 407 away from the sliding sleeve 406. A second slot plate 409 is symmetrically fixedly connected to the top of the movable seat 408, and the two slot plates 409 are horizontally inclined in a direction away from each other. An insert rod 410 is fixedly connected to the end of each rack 403 away from the first slot plate 402. The end of the insert rod 410 away from the rack 403 is slidably connected inside the second slot plate 409, so that the movable seat 408 moves up and down and carries... When the moving trough plate 409 slides up and down, the insert rod 410 remains inside the trough plate 409 and maintains a limiting relationship. Three baffles 411 are slidably connected inside the vibrating plate 212. The three baffles 411 are equidistant, and the spacing between them is the same as that between the three feeding troughs 213. Sliding rods 412 are fixedly connected to both sides of the three baffles 411. One end of two sliding rods 412 passes through the drying chamber 202, and the other end of two sliding rods 412 passes through the vibrating plate 212. The drying chamber 202 and the sliding rods 412... The sliding connection is larger than the thickness of the sliding rod 412, allowing the sliding rod 412 to slide up and down a short distance within the drying chamber 202. The two sliding rods 412 are slidably connected to the drying chamber 202, and one end of each sliding rod 412 extending out of the drying chamber 202 is fixedly connected to the movable seat 408. A discharge port 413 is provided below the drying chamber 211 within the drying chamber 202, and a blowing port 414 is provided below each of the two air inlet chambers 301 within the drying chamber 202. The discharge port 413 and the blowing port 414 are connected to the grinding chamber 201.

[0052] Furthermore, such as Figure 1 as well as Figure 10As shown, a grading assembly is provided on the top of the base plate 1. The grading assembly includes a grading box 501 fixedly installed on the side of the base plate 1 away from the grinding box 201. Three sieve plates 502 are fixedly connected inside the grading box 501. The diameter of the three sieve plates 502 decreases sequentially. Three rotating plates 503 are rotatably connected to the base plate 1. A cylinder 504 is rotatably connected to the bottom of the base plate 1. A crossbar 505 is rotatably connected to the movable end of the cylinder 504. Six pull rods 506 are rotatably connected to the crossbar 505. The pull rods 506 are in groups of two. The ends of the three groups of pull rods 506 away from the crossbar 505 are respectively rotatably connected to the three rotating plates 503. The grading box 501 is open on both sides and connected to the grinding box 201.

[0053] Based on the above embodiments, the following is the complete working process and working principle of the above embodiments:

[0054] The initial state is:

[0055] The rack 403 is located inside the first trough plate 402 on the side near the second trough plate 409. The first baffle 306 blocks the blowing port 414. The drying chamber 211 and the air inlet chamber 301 are in communication. The movable end of the first cylinder 404 is not extended. The insert rod 410 is located inside the second trough plate 409 on the side away from the drying box 202. The three second baffles 411 block the three discharge troughs 213. The second cylinder 504 is not retracted. The rotating plate 503 is not rotated.

[0056] The working status is:

[0057] Drying graphite:

[0058] After the block graphite raw material is poured into the drying chamber 211, the motor 203 and the blower 303 are started. The motor 203 drives gear 204 to rotate, which in turn drives gear 205 to rotate. Gear 205, through pulley 207 and a belt, drives pulley 208 to rotate, which in turn drives cam 210 to rotate via shaft 209. When cam 210 rotates, the protruding part pushes the vibrating plate 212 upwards when it contacts it. As cam 210 rotates, the protruding part moves away from the vibrating plate 212. At 12 o'clock, the vibrating plate 212 slides downward in the drying chamber 211 under the action of gravity. As the cam 210 rotates continuously, the vibrating plate 212 vibrates and shakes the graphite raw material. At the same time, the blower 303 blows air into the air inlet chamber 301 through the air supply pipe 304. After entering the air inlet chamber 301, the air first comes into contact with the electric heater 302. The air is heated by the electric heater 302 and then enters the drying chamber 211. Thus, in conjunction with the vibrating plate 212, the graphite raw material is dried by heated air while it is being shaken. The drying is faster and the drying efficiency of the graphite raw material is effectively improved.

[0059] Switching states:

[0060] After the graphite raw material is dried, cylinder 404 is activated and its movable end extends. This causes the movable end to move the moving seat 408 and connecting rod 407 away from the drying chamber 202 via the traction rod 405 and sliding sleeve 406. The moving seat 408 pulls the sliding rod 412, which is fixedly connected to it. This causes the sliding rod 412 to slide the three baffles 411 towards the moving seat 408 until the baffles 411 are misaligned with the feeding trough 213. At this point, the feeding trough 213 is no longer blocked by the baffles 411. Graphite raw material can fall from the feed trough 213 into the grinding box 201. During this process, the moving seat 408 drives the second trough plate 409 to move away from the drying box 202, so that the insert rod 410 engages with the inclined groove of the second trough plate 409. As the second trough plate 409 moves away from the drying box 202, the rack 403 slides towards the first trough plate 402, thereby driving the third gear 401 to rotate. The third gear 401 drives the first baffle 306 to rotate through the rotating rod 305, so that the first baffle 306... Figure 6 When rotated 90 degrees counterclockwise in the middle state, 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 switch from the drying state to the pulverizing state.

[0061] Evenly distribute the material:

[0062] After switching to the crushing state, the motor 203 rotates again, causing the cam 210 to rotate via gear 204, gear 205, pulley 207, pulley 208, and rotating shaft 209. This causes the vibrating plate 212 to vibrate again, moving the graphite raw material. At this time, some graphite raw material is shaken off from the feed trough 213 and falls into the grinding box 201 from the feed port 413. This allows the graphite raw material to enter the grinding box 201 intermittently while the vibrating plate 212 is constantly vibrating, preventing all the graphite raw material from entering between the crushing rollers 206 and causing poor grinding effect. This improves the grinding effect of graphite and prevents a large amount of graphite raw material from entering the crushing rollers 206. This also prevents the motor 203 from increasing its output power when the crushing rollers 206 are difficult to crush, thus reducing the consumption of the motor 203 while ensuring the grinding effect and achieving energy saving.

[0063] Reduce residue:

[0064] After the graphite is shaken off 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 and crushing the graphite raw material through gear 1 204 and gear 2 205. At this time, the electric heater 302 is turned off, and the air supply pipe 304 sends the airflow into the air inlet chamber 301 through the blower 303. The airflow is guided by the blowing port 414 and enters between the two crushing rollers 206. It passes through the two crushing rollers 206 and reaches the bottom of the grinding box 201. Under the action of the airflow continuously passing over 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 airflow, thereby maintaining the crushing effect of the crushing rollers 206 on the graphite.

[0065] Material grading:

[0066] After the ground graphite is carried by the airflow to the bottom of the grinding chamber 201, since the grinding chamber 201 is connected to the sieve plate 502 and the side of the sieve plate 502 away from the grinding chamber 201 is not closed, the airflow carries the graphite powder into the classifying chamber 501. After the graphite powder enters the classifying chamber 501, it continuously tumbles and comes into contact with the sieve plate 502. Since the diameter of the sieve plate 502 decreases sequentially, the fine graphite powder can pass through two sieve plates 502. According to the size of the graphite powder, it is divided into three grades by the sieve plate 502. Then the airflow blows out through the last sieve plate 502, so that the airflow in the device achieves circulation, thereby realizing the effect of airflow-assisted graphite separation. In addition, during the classification process, the graphite powder continuously tumbles and comes into contact with the sieve plate 502, making the classification more thorough.

[0067] Automatic material feeding:

[0068] After the graphite powder is classified, the motor 203 and blower 303 are de-energized. The graphite powder of different grades falls on the top of the three rotating plates 503. Then, cylinder 2 504 is started and drives the movable end to retract, pulling the crossbar 505 to move towards cylinder 2 504. This causes the crossbar 505 to pull the rotating plate 503 to rotate through the pull rod 506, thus rotating the rotating plate 503 downward and opening it. At this time, the graphite powder of different grades slides down the inclined rotating plate 503, achieving the effect of automatic discharge by gravity, saving time and effort.

[0069] Example 2: A method for using an energy-saving graphite grinding and grading device includes the following steps:

[0070] Step 1: Pour the lumpy graphite into the drying oven 202, so that it enters the drying chamber 211 and falls onto the vibrating plate 212;

[0071] Step 2: Simultaneously start the motor 203, the electric heater 302 and the blower 303, so that the cam 210 rotates and drives the vibrating plate 212 to vibrate continuously, so as to initially separate the graphite raw material in soil blocks. At the same time, the air entering and leaving the blower 303 is heated by the electric heater 302 and then blown from the bottom of the drying chamber 211 to the bottom of the graphite raw material for drying.

[0072] Step 3: After drying is completed, simultaneously turn off motor 203, heater 302 and blower 303, and start cylinder 1 404 to extend it. With the cooperation of traction rod 405, sliding sleeve 406 and moving seat 408, baffle 2 411 is pulled away from feeding trough 213, so that graphite raw material can pass through feeding trough 213. During the extension of cylinder 1 404, trough plate 2 409 cooperates with insertion rod 410, so that rack 403 drives baffle 1 306 to rotate 90 degrees through gear 3 401 and rotating rod 305, so that the bottom of drying chamber 211 is closed and air inlet chamber 301 is connected to blowing port 414.

[0073] Step 4: Restart the motor 203 and blower 303, 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 airflow sent by the blower 303 is blown into the crushing rollers 206 through the air inlet 301 and the blowing port 414, causing the graphite powder crushed by the crushing rollers 206 to flow to the bottom of the crushing rollers 206.

[0074] Step 5: The graphite powder reaches the bottom of the grinding box 201 under the action of the airflow, and is carried into the classifier 501 by the airflow under the condition that the grinding box 201 is connected to the classifier 501.

[0075] Step 6: Graphite powder enters the classifier 501 under the action of airflow and comes into contact with the sieve plate 502. Under the action of airflow, the graphite powder continuously rolls and is screened at the sieve plate 502. Three-stage classification is achieved under the action of three sieve plates 502.

[0076] Step 7: After screening, 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 retract its moving end. The cylinder 2 504 pulls the three rotating plates 503 to rotate and open through the crossbar 505 and the pull rod 506, and discharges the screened three-stage graphite powder into the grading box 501.

[0077] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An energy-saving graphite grinding and grading device, characterized in that, Includes: a base plate, with a grinding assembly mounted on top of the base plate; The grinding assembly includes a grinding box fixedly connected to the top of the base plate, a drying box fixedly connected to the top of the grinding box, and a rotating shaft, one end of which passes through the grinding box and is fixedly connected to a cam. A drying chamber is provided inside the grinding box, and a vibrating plate is slidably connected inside the drying chamber. Three feeding grooves are opened on the vibrating plate, and the cam abuts against the vibrating plate. The grinding chamber is equipped with a drying assembly, which includes symmetrically arranged air inlet chambers on the grinding chamber. An electric heater is fixedly installed in the air inlet chamber. A blower is fixedly installed on the side of the grinding chamber near the motor. An air supply pipe is fixedly connected to the output end of the blower. The port of the air supply pipe away from the blower leads to the two air inlet chambers respectively. The drying chamber is connected to the two air inlet chambers. A rotating rod is rotatably connected to the connection between the drying chamber and the air inlet chamber. A baffle is fixedly connected to the surface of the two rotating rods respectively. One end of the two rotating rods extends out of the drying chamber to the outside. The electric heater is located at the top of the air intake chamber, and the connection between the air supply pipe and the air intake chamber is aligned with the electric heater. A switching assembly is provided on one side of the grinding box. The switching assembly includes a gear three fixedly connected to one end of the rotating rod that extends out of the drying box. A slot plate one is symmetrically fixedly connected to the side of the drying box near the motor. A rack is slidably connected inside the slot plate one and meshes with the slot plate one. A cylinder one is fixedly installed on the side of the drying box near the motor. A traction rod is fixedly connected to the output end of the cylinder one. 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 movable seat is fixedly connected to the side of the connecting rod away from the sliding sleeve. The top of the movable seat is symmetrically and fixedly connected with a second slot plate. Each rack has a rod fixedly connected to the end away from the first slot plate. The end of the rod away from the rack is slidably connected inside the second slot plate. Three baffles are slidably connected inside the vibrating plate. Sliding rods are fixedly connected to both sides of the three baffles. One end of two sliding rods goes into the drying box, and the other end of two sliding rods goes into the vibrating plate. The two sliding rods are slidably connected to the drying box, and the other end of two sliding rods that go out of the drying box is fixedly connected to the moving seat. Inside the drying chamber, there are blowing ports below the two air inlets. The blowing ports are connected to the grinding chamber. The airflow enters between the two grinding rollers through the guiding effect of the blowing ports. After the graphite raw material is dried, cylinder one is activated and its movable end extends, causing the movable end to move the moving seat and connecting rod away from the drying box via the traction rod and sliding sleeve. The moving seat pulls the sliding rod fixedly connected to it, causing the sliding rod to slide the three baffles two towards the moving seat until the baffles two are misaligned with the feeding trough. The feeding trough is no longer blocked by the baffles two, and the graphite raw material falls from the feeding trough into the grinding box. During this process, the moving seat drives the trough plate two away from the drying box, so that the insert rod engages with the inclined groove of the trough plate two. Thus, when the trough plate two moves away from the drying box, the rack slides towards the trough plate one, thereby driving the gear three to rotate. The gear three drives the baffle one to rotate through the rotating rod, causing the baffle one to rotate 90 degrees counterclockwise. At this time, the drying chamber and the air inlet chamber are no longer connected, and the air inlet chamber is connected to the blowing port, completing the switch from the drying state to the pulverizing state.

2. The energy-saving graphite grinding and classifying device according to claim 1, characterized in that, A motor is fixedly installed on the top of the base plate. Gear 1 and Gear 2 are rotatably connected to the side of the grinding box near the motor. The output end of the motor is fixedly connected to the middle of Gear 1. Gear 1 and Gear 2 are meshed. Crushing rollers are symmetrically rotatably connected inside the grinding box. Gear 1 and Gear 2 are coaxially fixedly connected to the two crushing rollers respectively. Pulley 1 is coaxially fixedly connected to the side of Gear 2 away from the grinding box. Pulley 2 is rotatably connected to the side of the drying box near the motor. A belt is fitted on the surface of both Pulley 1 and Pulley 2. A rotating shaft is coaxially fixedly connected to the middle of Pulley 2.

3. The energy-saving graphite grinding and grading device according to claim 2, characterized in that, The drying chamber has a discharge port located at the bottom of the drying cavity, which is connected to the grinding chamber.

4. The energy-saving graphite grinding and grading device according to claim 3, characterized in that, A grading assembly is provided on the top of the base plate. The grading assembly includes a grading box fixedly installed on the side of the base plate away from the grinding box. The grading box is open on both sides and connected to the grinding box. Three sieve plates are fixedly connected inside the grading box. Three rotating plates are rotatably connected to the base plate. A cylinder is rotatably connected to the bottom of the base plate. A crossbar is rotatably connected to the movable end of the cylinder. Six tie rods are rotatably connected to the crossbar. The tie rods are arranged in groups of two. The ends of the three groups of tie rods away from the crossbar are rotatably connected to the three rotating plates respectively.

5. The method of using the energy-saving graphite grinding and grading device according to claim 4, characterized in that, The method of use includes the following steps: Step 1: Pour the lumps of graphite into the drying oven, allowing them to enter the drying chamber and fall onto the vibrating plate; Step 2: Simultaneously start the motor, heater and blower, so that the cam rotates and drives the vibrating plate to vibrate continuously, which initially separates the soil-filled graphite raw materials. At the same time, the air entering and leaving the blower is heated by the heater and blown from the bottom of the drying chamber to the bottom of the graphite raw materials for drying. Step 3: After drying is completed, simultaneously turn off the motor, heater and blower, and start cylinder one to extend it. With the cooperation of the traction rod, sliding sleeve and moving seat, the baffle two is pulled away from the feeding trough, so that the graphite raw material passes through the feeding trough. During the extension of cylinder one, the trough plate two cooperates with the insert rod, so that the rack drives the baffle one to rotate 90 degrees through gear three and rotating rod, thereby sealing the bottom of the drying chamber and connecting the air inlet chamber with the blowing port. Step 4: Restart the motor and blower, so that the cam drives the vibrating plate to vibrate continuously, intermittently feeding the graphite raw material between the crushing rollers. At the same time, the airflow sent by the blower blows into the crushing rollers through the air inlet and the blowing port, causing the graphite powder after being 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 chamber under the action of the airflow, and is carried into the classifier by the airflow when the grinding chamber is connected to the classifier. Step 6: Graphite powder enters the classifier under the action of airflow and comes into contact with the sieve plate. Under the action of airflow, the graphite powder continuously rolls and is screened on the sieve plate. Three-stage classification is achieved under the action of three sieve plates. Step 7: After screening, turn off the blower. The graphite powder falls to the top of the rotating plate under gravity. Start cylinder two to retract its moving end. Cylinder two pulls the three rotating plates to rotate and open through the crossbar and tie rod, and discharges the screened three-stage graphite powder from the grading box.

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