Large ball mill

Abstract

The large ball mill comprises a base, a supporting side plate is fixedly installed on the top face of the base, a grinding chamber is rotationally connected to the side face of the supporting side plate, one end of the grinding chamber communicates with a discharging chamber, a side motor is fixedly installed on the side face of the discharging chamber, and spiral blades are installed at the output end of the side motor; and a screening mechanism is arranged on the inner wall of the discharging chamber. Automatic screening and cyclic utilization of materials are achieved through linkage of the filter plate and the spiral blade, qualified materials are directly discharged after being screened, unqualified materials can flow back to the grinding chamber for secondary grinding, the requirement for manual intervention is reduced, the overall grinding efficiency and the product quality are improved, and the production cost is reduced. Meanwhile, the filter plate vibrates up and down through linkage of the extrusion rod and the spring A, the screening process is effectively accelerated through the mechanical vibration, materials are prevented from blocking the filter plate, the filtering efficiency is ensured, and the production continuity is improved.

Description

Technical Field

[0001] The invention relates to the field of ball mills, in particular to a large-scale ball mill. Background Art

[0002] Ball mill is the key equipment for crushing materials after they are broken. It is widely used in cement, silicate products, refractory materials, fertilizers, black and non-ferrous metal beneficiation, glass and ceramics and other production industries to grind various ores and other grindable materials in dry or wet manner.

[0003] Publication No. CN207786729U discloses a ball mill, including a base, a grinding chamber, a reducer, a motor and a bag dust collector, wherein the grinding chamber is cylindrical, the grinding chamber is arranged horizontally, a feed port is arranged at one end of the grinding chamber, and a discharge port is arranged at the other end of the grinding chamber, the grinding chamber is filled with a ball mill, an annular gear is welded on the outside of the grinding chamber, and the gear is coaxially arranged with the grinding chamber, the motor cooperates with the input end of the reducer, and a driving gear for driving the gear to rotate is fixed at the output end of the reducer, and the base is provided with two A bearing is fixed on the top of the two bases, and the bearings on both sides are respectively matched with the feed port and the discharge port. A discharge box is matched at the discharge port, and the discharge box has an opening for inserting the discharge port. A dust suction hole is provided on the side of the discharge box away from the opening, and a filter screen is matched in the dust suction hole. The mesh aperture of the filter screen is 50-100 mesh. A dust suction pipe is connected to the outside of the discharge box, and the dust suction pipe is flange-connected to the discharge box. The dust suction pipe is connected to the bag dust collector, and a discharge conduit is obliquely arranged below the discharge box. Although this type of ball mill can effectively absorb the dust generated during the grinding process. However, for this type of ball mill, the screening and reflux of materials usually need to rely on manual operation, and the distinction and processing of qualified and unqualified materials are relatively cumbersome, which increases the workload of the operator and may lead to low efficiency and unstable product quality. Therefore, improvements are needed. Summary of the invention

[0004] The purpose of the present invention is to solve the technical problems raised in the above background technology.

[0005] The present invention adopts the following technical scheme: a large ball mill comprises a base, a supporting side plate is fixedly installed on the top surface of the base, a grinding chamber is rotatably connected to the side surface of the supporting side plate, one end of the grinding chamber is connected to a discharge chamber, a side motor is fixedly installed on the side surface of the discharge chamber, a spiral blade is installed on the output end of the side motor, the spiral blade is located inside the discharge chamber, a screening mechanism is arranged on the inner wall of the discharge chamber, a prompt mechanism is arranged on the top surface of the discharge chamber, and a heat dissipation mechanism is arranged on the surface of the grinding chamber; The screening mechanism includes a sliding rod, which is arranged through the top surface of the discharge chamber, a top block is fixedly installed on one end of the sliding rod, a filter plate is fixedly installed on the other end of the sliding rod, and an extrusion rod is installed on the output end of the side motor, and the extrusion rod interferes with the movement of the filter plate.

[0006] Preferably, the slide rod is slidably connected to the discharge chamber, a spring A is sleeved on the surface of the slide rod, one end of the spring A is fixedly connected to the top block, and the other end of the spring A is fixedly connected to the discharge chamber.

[0007] Preferably, a driving motor is fixedly mounted on the top surface of the base, a driving pulley is mounted on the output end of the driving motor, a driven pulley is fixedly mounted on the surface of the grinding chamber, and transmission belts are sleeved on the surfaces of the driving pulley and the driven pulley.

[0008] Preferably, the prompt mechanism includes a slide plate, which is slidably arranged on the top surface of the discharge chamber, a rack is fixedly installed on the surface of the slide plate, a vertical plate is fixedly installed on the surface of the discharge chamber, a short rod is rotatably connected to the side of the vertical plate, a round rod is fixedly installed on one end of the short rod, a reflective sheet is fixedly installed on the surface of the round rod, a gear is fixedly installed on the surface of the short rod, the slide plate is slidably connected to the discharge chamber, the gear is meshed with the rack, and the extrusion rod interferes with the movement of the slide plate.

[0009] Preferably, the reflective sheets are arranged in a circular shape on the surface of the round rod.

[0010] Preferably, the heat dissipation mechanism includes a heat sink, which is fixedly mounted on the surface of the grinding chamber, a vertical block is fixedly mounted on the top surface of the base, a short plate is penetrated through the surface of the vertical block, the short plate is slidably connected to the vertical block, and a rubber block is fixedly mounted on one end of the short plate.

[0011] Preferably, a push handle is fixedly mounted on the other end of the short plate, and a spring B is sleeved on the surface of the short plate.

[0012] Preferably, the rubber block is made of natural rubber.

[0013] In summary, the advantages and positive effects of the present invention are: 1. In the present invention, the material enters the grinding chamber, and then the driving motor drives the active pulley to rotate, and the active pulley can then drive the driven pulley to rotate through the transmission belt, and the driven pulley can then drive the grinding chamber to rotate, and then the grinding balls in the grinding chamber can be driven to move, thereby grinding the material. At the same time, the ground material can be driven by the side motor to rotate the spiral blade, and then the material is transported to the grinding chamber. The material can stay on the filter plate at this time, and when the side motor drives the spiral blade to rotate, it can synchronously drive the extrusion rod at the output end to rotate. During the rotation of the extrusion rod, the filter plate can be squeezed, and the filter plate can slide downward through the slide rod at this time. When the extrusion rod leaves the filter plate, due to the elastic force of the spring A, the spring A can drive the top block to move upward, and the top block can then drive the slide rod and the filter plate to move Up reset, that is, when the spiral blade rotates, the filter plate can be made to oscillate up and down, so that the material conveyed by the spiral blade can be filtered, thereby screening out qualified materials, and the remaining unqualified materials accumulated on the filter plate can be subsequently re-conveyed to the grinding chamber by the spiral blade for further grinding. The present invention realizes automatic screening and recycling of materials through the linkage of the filter plate and the spiral blade. Qualified materials are directly discharged after screening, and unqualified materials can be returned to the grinding chamber for secondary grinding, which reduces the need for manual intervention and improves the overall grinding efficiency and product quality. At the same time, the linkage of the extrusion rod and the spring A makes the filter plate vibrate up and down. Through this mechanical vibration, the screening process is effectively accelerated to prevent materials from being blocked on the filter plate, thereby ensuring filtration efficiency, improving production continuity, and having high practicality.

[0014] 2. In the present invention, during the rotation of the extrusion rod, the slide plate can be squeezed upward, and the slide plate can then drive the rack to move upward. When the rack moves, it can drive the gear meshing with it to rotate, and the gear can drive the short rod to rotate, and the short rod can then drive the round rod and the reflector to rotate, so that when the spiral blade is working, the reflector can be rotated and remind the staff to pay attention. The present invention automatically drives the reflector to rotate when the spiral blade is working through the linkage mechanism of the extrusion rod, the gear, the short rod and the reflector, thereby providing a visual reminder, avoiding the need for additional electronic or sensor systems, and effectively reminding the operator that the equipment is working in the absence of electronic control, thereby enhancing the safety and intuitiveness of equipment operation, and because of the use of a purely mechanical linkage structure, the introduction of electronic components is avoided, and the risk of circuit failure or sensor failure is reduced. This not only reduces the complexity of the equipment, but also improves the reliability of the equipment in harsh working environments and reduces the dependence on the power control system. The rotating reflector provides real-time and visual equipment status feedback for the operator, which is convenient for the staff to observe whether the equipment is in working state at a distance, thereby improving the convenience and efficiency of operation.

[0015] 3. In the present invention, the heat generated by the grinding chamber can be conducted out through the heat sink, and the grinding chamber can drive the heat sink to rotate synchronously during rotation, and the heat sink can dissipate the heat into the air. During long-term use, if dust accumulates inside the heat sink, the staff only needs to push the short plate to move through the push handle, and the short plate can then drive the rubber block to move. The rubber block is then inserted into the heat sink, so that during the rotation of the heat sink, stains and dust can be wiped out by the rubber block. When the push handle is released, due to the elastic force of the spring B, the spring B can drive the push handle to reset, and the push handle then drives the short plate and the rubber block to reset. The present invention realizes dynamic heat dissipation by the heat sink rotating synchronously when the grinding chamber rotates. An automatic cleaning mechanism is added at the same time. The staff can clean the dust and stains inside the heat sink without disassembling the equipment or stopping the operation, which simplifies the maintenance process of the equipment and improves the working efficiency and continuous operation capability of the equipment. The design of the heat sink and the grinding chamber rotating synchronously speeds up the transfer and dissipation of heat, effectively reduces the temperature in the grinding chamber, prevents equipment damage or reduced working efficiency due to overheating, extends the service life of the equipment, and improves the operating stability. Through the linkage cleaning mechanism of the push handle, short plate and rubber block, the staff only needs to simply operate the push handle to automatically remove the dust and dirt on the heat sink. There is no need to stop the equipment or manually disassemble it for cleaning, which reduces equipment downtime and manual intervention and reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the present invention.

[0017] Figure 2 It is a cross-sectional view from a bottom up perspective of the present invention.

[0018] Figure 3 It is a cross-sectional view of the present invention.

[0019] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0020] Figure 5 It is a top view of the present invention.

[0021] Figure 6 yes Figure 5 Enlarged view of point B in the middle.

[0022] Description of reference numerals: 1. Base; 2. Support side plate; 3. Grinding chamber; 4. Driving motor; 5. Active pulley; 6. Driven pulley; 7. Transmission belt; 8. Discharging chamber; 9. Side motor; 10. Spiral blade; 11. Screening mechanism; 12. Prompt mechanism; 13. Heat dissipation mechanism; 1101. Sliding rod; 1102. Top block; 1103. Filter plate; 1104. Extrusion rod; 1105. Spring A; 1201. Sliding plate; 1202. Rack; 1203. Vertical plate; 1204. Short rod; 1205. Round rod; 1206. Reflective sheet; 1207. Gear; 1301. Heat sink; 1302. Vertical block; 1303. Short plate; 1304. Rubber block; 1305. Push handle; 1306. Spring B. DETAILED DESCRIPTION

[0023] Embodiment 1 See also Figure 1-6 The present invention provides a technical solution: a large ball mill, comprising a base 1, and a supporting side plate 2 is fixedly installed on the top surface of the base 1. The supporting side plate 2 is connected to the base 1 by bolts or welding. This connection method can ensure that the equipment remains stable during long-term operation and is convenient for later maintenance and disassembly. The side of the supporting side plate 2 is rotatably connected with a grinding chamber 3, and the grinding chamber 3 is connected to the supporting side plate 2 by a bearing or a sliding bearing. The use of the bearing can reduce friction, ensure that the grinding chamber 3 runs smoothly at high speed, and extend the service life of the equipment. A driving motor 4 is fixedly installed on the top surface of the base 1, and the driving motor 4 is fixed on the base 1 by a flange or bolt connection method to ensure that the driving motor 4 will not loosen or shift during operation. A driving pulley 5 is installed at the output end of the driving motor 4, and the driving pulley 5 is installed on the output shaft of the driving motor 4 by a keyway connection or a threaded fixing method to ensure the reliability and stability of power transmission. A driven pulley 6 is fixedly installed on the surface of the grinding chamber 3, and the driven pulley 6 is fixed to the grinding chamber 3 by a keyway or a threaded connection method, and this connection method is convenient for installation and replacement. The surfaces of the driving pulley 5 and the driven pulley 6 are sleeved with a transmission belt 7, and the tension of the transmission belt 7 is adjusted by a tensioning pulley to ensure the smoothness of the belt transmission and the efficient transmission of power. One end of the grinding chamber 3 is connected to the discharge chamber 8, and the discharge chamber 8 is connected to the grinding chamber 3 by a flange. The flange connection has good sealing properties to prevent material leakage. A side motor 9 is fixedly installed on the side of the discharge chamber 8, and the side motor 9 is fixed to the discharge chamber 8 by a flange or bolts to ensure that it maintains stable operation under high load conditions. A spiral blade 10 is installed at the output end of the side motor 9. The spiral blade 10 is located inside the discharge chamber 8. The spiral blade 10 is fixedly connected by a keyway or a thread to ensure the smooth transportation of the material.

[0024] See also Figure 1-6, the inner wall of the discharge chamber 8 is provided with a screening mechanism 11, and the screening mechanism 11 includes a slide bar 1101, and the slide bar 1101 is arranged on the top surface of the discharge chamber 8. The slide bar 1101 is slidably connected to the discharge chamber 8 through a guide rail or a bearing. The use of the guide rail can ensure the smooth sliding of the slide bar 1101 and avoid the jamming phenomenon. A top block 1102 is fixedly installed at one end of the slide bar 1101, and a filter plate 1103 is fixedly installed at the other end of the slide bar 1101. The filter plate 1103 is fixed to the slide bar 1101 by bolts or snaps, which is easy to disassemble and clean. An extrusion rod 1104 is installed at the output end of the side motor 9, and the extrusion rod 1104 is fixedly connected by a keyway or a thread. When working, the extrusion rod 1104 drives the filter plate 1103 to vibrate up and down to realize automatic screening of materials. A spring A1105 is sleeved on the surface of the slide rod 1101, one end of the spring A1105 is fixedly connected to the top block 1102, and the other end is fixedly connected to the discharge chamber 8. The spring A1105 is made of spring steel material, has good elasticity and fatigue resistance, and can maintain stable elastic force for a long time.

[0025] Embodiment 2 See also Figure 3-4 On the basis of Example 1, a prompt mechanism 12 is provided on the top surface of the discharge chamber 8. The prompt mechanism 12 includes a slide plate 1201. The extrusion rod 1104 interferes with the movement of the slide plate 1201. When the extrusion rod 1104 rotates, the slide plate 1201 can be squeezed, so that the slide plate 1201 slides up and down in the discharge chamber 8. The slide plate 1201 is arranged on the top surface of the discharge chamber 8. A rack 1202 is fixedly installed on the surface of the slide plate 1201. The rack 1202 is fixed on the slide plate 1201 by bolts or welding to ensure the meshing accuracy between the rack 1202 and the gear 1207. A vertical plate 1203 is fixedly installed on the surface of the discharge chamber 8. The vertical plate 1203 is fixed by bolts to facilitate later adjustment and maintenance. The side of the vertical plate 1203 is rotatably connected with a short rod 1204. The short rod 1204 is rotatably connected to the vertical plate 1203 by a bearing to ensure flexible and stable rotation. A round bar 1205 is fixedly mounted on one end of the short rod 1204. The round bar 1205 is connected to the short rod 1204 by welding or bolting to ensure structural strength. A reflective sheet 1206 is fixedly mounted on the surface of the round rod 1205. The reflective sheet 1206 is installed by bolts or snaps to facilitate replacement and maintenance. The reflective sheets 1206 are arranged in a circular shape on the surface of the round rod 1205 to ensure that the staff can observe the rotation state of the reflective sheets 1206 from different angles. A gear 1207 is fixedly mounted on the surface of the short rod 1204. The gear 1207 is meshed with the rack 1202. The gear 1207 is fixed to the short rod 1204 by bolts to ensure that it will not loosen during rotation.

[0026] Embodiment 3 See also Figure 5-6On the basis of Example 1, a heat dissipation mechanism 13 is provided on the surface of the grinding chamber 3. The heat dissipation mechanism 13 includes a heat sink 1301. The heat sink 1301 is fixedly mounted on the surface of the grinding chamber 3. The heat sink 1301 is fixed by welding or bolts to ensure that the heat sink 1301 can rotate synchronously with the grinding chamber 3. A vertical block 1302 is fixedly mounted on the top surface of the base 1. The vertical block 1302 is fixed on the base 1 by bolts or welding to ensure the stability and durability of the vertical block 1302. A short plate 1303 is provided on the surface of the vertical block 1302. The short plate 1303 is slidably connected to the vertical block 1302 by a guide rail or a bearing to ensure that the short plate 1303 is stable and smooth during the push and pull process. A push handle 1305 is fixedly mounted on the other end of the short plate 1303. The material of the push handle 1305 can be selected from wear-resistant rubber or plastic to ensure its comfort and durability during operation. The surface of the short board 1303 is sleeved with a spring B1306, one end of the spring B1306 is fixedly connected to the short board 1303, and the other end is fixedly connected to the vertical block 1302. The spring B1306 is made of spring steel and has good durability and elasticity. A rubber block 1304 is fixedly installed at one end of the short board 1303. The rubber block 1304 is made of natural rubber, which has good flexibility and wear resistance and can effectively clean the dust and dirt inside the heat sink 1301.

[0027] Working principle: the material enters the grinding chamber 3, and then the driving motor 4 drives the active pulley 5 to rotate, and the active pulley 5 can then drive the driven pulley 6 to rotate through the transmission belt 7, and the driven pulley 6 can then drive the grinding chamber 3 to rotate, and then the grinding balls in the grinding chamber 3 can be driven to move, thereby grinding the material. At the same time, the ground material can be driven by the spiral blade 10 to rotate through the side motor 9, and then the material is transported to the grinding chamber 3. The material can now stay on the filter plate 1103, and when the side motor 9 drives the spiral blade 10 to rotate, it can synchronously drive the extrusion rod 1104 at the output end to rotate. During the rotation of the extrusion rod 1104, the filter plate 1103 can be squeezed, and the filter plate 1103 can now be moved by sliding The rod 1101 slides downward, and when the extrusion rod 1104 leaves the filter plate 1103, due to the elastic force of the spring A1105, the spring A1105 can drive the top block 1102 to move upward, and the top block 1102 can then drive the slide rod 1101 and the filter plate 1103 to reset upward. In other words, when the spiral leaf 10 rotates, the filter plate 1103 can be made to oscillate up and down, so that the material transported by the spiral leaf 10 can be filtered, thereby screening out qualified materials, and the remaining unqualified materials accumulated on the filter plate 1103 can be subsequently transported to the grinding chamber 3 through the spiral leaf 10 for continued grinding. The present invention realizes automatic screening and recycling of materials through the linkage between the filter plate 1103 and the spiral leaf 10, and qualified materials are The material is directly discharged after screening, while the unqualified material can be returned to the grinding chamber 3 for secondary grinding, which reduces the need for manual intervention and improves the overall grinding efficiency and product quality. At the same time, the linkage between the extrusion rod 1104 and the spring A1105 causes the filter plate 1103 to vibrate up and down. Through this mechanical vibration, the screening process is effectively accelerated to prevent the material from being blocked on the filter plate 1103, thereby ensuring the filtration efficiency and improving the production continuity. During the rotation of the extrusion rod 1104, the slide plate 1201 can be squeezed upward, and the slide plate 1201 can then drive the rack 1202 to move upward. When the rack 1202 moves, it can drive the gear 1207 meshing with it to rotate, and the gear 1207 can drive the short rod 1204 to rotate. The short rod 1204 can then drive the round rod 1205 and the reflective sheet 1206 to rotate, so that when the spiral blade 10 is working, the reflective sheet 1206 can be rotated to remind the staff. The present invention automatically drives the reflective sheet 1206 to rotate when the spiral blade 10 is working through the linkage mechanism of the extruded rod 1104, the gear 1207, the short rod 1204 and the reflective sheet 1206, thereby providing a visual reminder, avoiding the need for additional electronic or sensor systems, and effectively reminding the operator that the equipment is working in the absence of electronic control, thereby enhancing the safety and intuitiveness of the equipment operation, and because a purely mechanical linkage structure is adopted, the introduction of electronic components is avoided, thereby reducing the risk of circuit failure or sensor failure.This not only reduces the complexity of the equipment, but also improves the reliability of the equipment in harsh working environments, reduces dependence on power control systems, and the rotating reflector 1206 provides operators with real-time and visual equipment status feedback, which is convenient for staff to observe whether the equipment is in working condition at a long distance, thereby improving the convenience and efficiency of operation. The heat sink 1301 provided can export the heat generated by the grinding chamber 3. At the same time, during the rotation of the grinding chamber 3, the heat sink 1301 can be driven to rotate synchronously, and the heat sink 1301 can dissipate the heat into the air. At the same time, during long-term use, if dust accumulates on the inside of the heat sink 1301, the staff only needs to push the short plate 1303 through the push handle 1305, and the short plate 1303 can then drive the rubber block 1304 to move. The rubber block 1304 is then inserted into the heat sink 1301, so that during the rotation of the heat sink 1301, stains and dust can be wiped out by the rubber block 1304, and when the push handle 1305 is released, due to the elastic force of the spring B1306, Spring B1306 can drive the push handle 1305 to reset, and the push handle 1305 then drives the short plate 1303 and the rubber block 1304 to reset. The present invention realizes dynamic heat dissipation by synchronously rotating the heat sink 1301 when the grinding chamber 3 rotates, and at the same time adds an automatic cleaning mechanism. The staff can clean the dust and stains inside the heat sink 1301 without disassembling the equipment or stopping the operation, which simplifies the maintenance process of the equipment and improves the working efficiency and continuous operation capability of the equipment. The design of synchronous rotation of the heat sink 1301 and the grinding chamber 3 accelerates the transfer and dissipation of heat, effectively reduces the temperature in the grinding chamber 3, prevents equipment damage or reduced working efficiency due to overheating, extends the service life of the equipment, and improves the operating stability. Through the linkage cleaning mechanism of the push handle 1305, the short plate 1303 and the rubber block 1304, the staff only needs to simply operate the push handle 1305 to automatically remove the dust and dirt on the heat sink 1301, without stopping the equipment or manually disassembling it for cleaning, thereby reducing equipment downtime and manual intervention and reducing maintenance costs.

Claims

1. A large ball mill, comprising a base (1), characterized in that: A supporting side plate (2) is fixedly mounted on the top surface of the base (1); a grinding chamber (3) is rotatably connected to the side surface of the supporting side plate (2); one end of the grinding chamber (3) is connected to a discharge chamber (8); a side motor (9) is fixedly mounted on the side surface of the discharge chamber (8); a spiral blade (10) is mounted on the output end of the side motor (9); the spiral blade (10) is located inside the discharge chamber (8); a screening mechanism (11) is arranged on the inner wall of the discharge chamber (8); a prompt mechanism (12) is arranged on the top surface of the discharge chamber (8); and a heat dissipation mechanism (13) is arranged on the surface of the grinding chamber (3); The screening mechanism (11) comprises a sliding rod (1101), the sliding rod (1101) being arranged to penetrate the top surface of the discharge chamber (8), a top block (1102) being fixedly mounted on one end of the sliding rod (1101), a filter plate (1103) being fixedly mounted on the other end of the sliding rod (1101), and an extrusion rod (1104) being mounted on the output end of the side motor (9), the extrusion rod (1104) interfering with the movement of the filter plate (1103).

2. A large ball mill according to claim 1, characterized in that: The sliding rod (1101) is slidably connected to the discharge chamber (8); a spring A (1105) is sleeved on the surface of the sliding rod (1101); one end of the spring A (1105) is fixedly connected to the top block (1102); and the other end of the spring A (1105) is fixedly connected to the discharge chamber (8).

3. A large ball mill according to claim 1, characterized in that: A driving motor (4) is fixedly mounted on the top surface of the base (1), a driving pulley (5) is mounted on the output end of the driving motor (4), a driven pulley (6) is fixedly mounted on the surface of the grinding chamber (3), and a transmission belt (7) is sleeved on the surfaces of the driving pulley (5) and the driven pulley (6).

4. A large ball mill according to claim 1, characterized in that: The prompt mechanism (12) comprises a slide plate (1201), the slide plate (1201) being slidably arranged on the top surface of the discharge chamber (8), a rack (1202) being fixedly mounted on the surface of the slide plate (1201), a vertical plate (1203) being fixedly mounted on the surface of the discharge chamber (8), a short rod (1204) being rotatably connected to the side surface of the vertical plate (1203), a round rod (1205) being fixedly mounted on one end of the short rod (1204), a reflective sheet (1206) being fixedly mounted on the surface of the round rod (1205), a gear (1207) being fixedly mounted on the surface of the short rod (1204), the slide plate (1201) being slidably connected to the discharge chamber (8), the gear (1207) being meshed with the rack (1202), and the movement of the extrusion rod (1104) and the slide plate (1201) interfering.

5. A large ball mill according to claim 4, characterized in that: The reflective sheets (1206) are arranged in a circular shape on the surface of the round rod (1205).

6. A large ball mill according to claim 1, characterized in that: The heat dissipation mechanism (13) comprises a heat sink (1301), the heat sink (1301) being fixedly mounted on the surface of the grinding chamber (3), a vertical block (1302) being fixedly mounted on the top surface of the base (1), a short plate (1303) being arranged through the surface of the vertical block (1302), the short plate (1303) being slidably connected to the vertical block (1302), and a rubber block (1304) being fixedly mounted on one end of the short plate (1303).

7. A large ball mill according to claim 6, characterized in that: A push handle (1305) is fixedly mounted on the other end of the short plate (1303), and a spring B (1306) is sleeved on the surface of the short plate (1303).

8. A large ball mill according to claim 6, characterized in that: The rubber block (1304) is made of natural rubber.

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