Ball mill feeding and discharging port capable of reducing material blockage

Abstract

The utility model relates to the field of ball mills, in particular to a ball mill feed and discharge port capable of reducing material blockage, which comprises a support, a barrel arranged on the support, a push rod slidably arranged at the end of the barrel, a pipeline arranged on the side of the barrel, and a brush arranged at one end of the push rod close to the feed and discharge port. An eccentric wheel is rotatably arranged on the support outside the barrel, a crank is rotatably connected to the eccentric wheel, the other end of the crank is rotatably connected with the end of the push rod, a speed reducer is arranged on the support, and the speed reducer comprises an input shaft and an output shaft connected with the eccentric wheel; a gear is arranged at the end, close to the driving gear, of the transmission shaft and meshed with the driving gear, and the transmission shaft is coaxially connected with the input shaft through a coupler. The utility model has the advantage of reducing material blockage.

Description

Technical Field

[0001] This utility model relates to the field of ball mills, specifically to a ball mill inlet and outlet that reduces material blockage. Background Technology

[0002] A ball mill is a widely used grinding equipment. Its working principle is that the transmission device drives the horizontally placed cylinder to rotate at a low speed. The liner on the inner wall of the cylinder and the grinding media (such as steel balls) adhere to the cylinder and rise under the action of centrifugal force until the gravity exceeds the centrifugal force and they fall freely, forming an impact crushing of the material.

[0003] Ball mills deal with granular or powdery materials during both feeding and discharging. Blockages often occur during the feeding process, especially in ball mills where both the inlet and outlet are horizontal. Particularly at the outlet, a filter screen is often installed to prevent the grinding media from being discharged. However, the filter screen is more prone to clogging, leading to material blockage. Summary of the Invention

[0004] The purpose of this invention is to provide a ball mill inlet and outlet design that reduces material blockage at the inlet and outlet of the ball mill.

[0005] The technical solution adopted is as follows:

[0006] A ball mill inlet / outlet design to reduce material blockage includes a support frame with a cylindrical body rotatably connected to the ball mill's inlet / outlet. A push rod is slidably mounted at the end of the cylindrical body, and a pipe is provided on the side of the cylindrical body. A brush is mounted on the end of the push rod near the inlet / outlet. An eccentric wheel is rotatably mounted on the support frame outside the cylindrical body, and a crank is rotatably connected to the eccentric wheel. The other end of the crank is rotatably connected to the end of the push rod. A reducer is mounted on the support frame, including an input shaft and an output shaft connected to the eccentric wheel. A drive gear ring is provided at the ball mill's inlet / outlet. A transmission shaft is rotatably mounted on the support frame, and a gear is mounted on the end of the transmission shaft near the drive gear. The gear meshes with the drive gear. The transmission shaft is coaxially connected to the input shaft using a coupling.

[0007] Preferably, the push rod has multiple push bars spaced apart on its side.

[0008] Preferably, the brush is vertically positioned at the upper end of the push rod.

[0009] Preferably, the inside of the cylinder is provided with a rubber conical dust cover 15 fitted onto the push rod.

[0010] Preferably, the push rod is installed at the upper-middle part of the inlet and outlet.

[0011] Compared to existing technologies, the advantages are:

[0012] 1. The rotation of the inlet and outlet is driven by the transmission shaft and reducer to drive the eccentric wheel to rotate, thereby causing the push rod to move back and forth. During the reciprocating movement of the push rod, the screen is cleaned by a brush to reduce blockage during the feeding process.

[0013] 2. Multiple push rods are spaced apart on the side of the push rod. During the feeding and discharging process, the push rods loosen the material to prevent material accumulation and blockage. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the ball mill inlet and outlet for reducing material blockage, according to the present invention.

[0015] Figure 2 This is a schematic diagram of the internal structure of the ball mill inlet and outlet cylinder, which reduces material blockage according to this utility model.

[0016] Figure 3 yes Figure 2 A schematic diagram of the structure at point A in the middle.

[0017] In the diagram: 1. Support; 2. Cylinder; 3. Limiting ring; 4. Limiting bolt; 5. Push rod; 6. Pipe; 7. Brush; 8. Eccentric wheel; 9. Crank; 10. Pusher bar; 11. Reducer; 12. Drive gear ring; 13. Transmission shaft; 14. Gear; 15. Rubber conical dust cover. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments, such as... Figures 1 to 3 As shown:

[0019] Example 1: A ball mill inlet and outlet with reduced material blockage includes a support 1, on which a cylinder 2 is mounted. The support 1 is fixedly mounted on the floor of the workshop. The cylinder 2 is rotatably connected to the support 1. The support 1 is provided with a positioning mechanism connected to the cylinder 2. The positioning mechanism includes a limiting ring 3. The limiting ring 3 is internally threaded with a limiting bolt 4. The positioning of the cylinder 2 is achieved by rotating the limiting bolt 4 to press the outside of the cylinder 2.

[0020] The cylinder 2 is rotatably connected to the inlet and outlet of the ball mill. A push rod 5 is slidably provided at the end of the cylinder 2. The push rod 5 slides horizontally inside the cylinder 2. The end of the push rod 5 extends into the inlet and outlet. A pipe 6 is provided on the side of the cylinder 2. When installed at the outlet, the cylinder 2 is rotated so that the pipe 6 is facing downwards. When installed at the inlet, the cylinder 2 is rotated so that the pipe 6 is facing upwards.

[0021] A brush 7 is provided at one end of the push rod 5 near the inlet and outlet. An eccentric wheel 8 is rotatably mounted on the support 1 outside the cylinder 2. A crank 9 is rotatably connected to the eccentric wheel 8. The other end of the crank 9 is rotatably connected to the end of the push rod 5. The rotation of the eccentric wheel 8 drives the push rod 5 to move back and forth, and the brush 7 cleans the material blocked on the screen.

[0022] A reducer 11 is installed on the support 1. The reducer 11 includes an input shaft and an output shaft connected to the eccentric wheel 8. A drive gear ring 12 is installed at the inlet and outlet of the ball mill. The drive gear 14 rotates synchronously with the ball mill. A transmission shaft 13 is rotatably installed on the support 1. A gear 14 is installed at one end of the transmission shaft 13 near the drive gear 14. The gear 14 meshes with the drive gear ring 12. The transmission shaft 13 is coaxially connected to the input shaft by a coupling.

[0023] Example 2: A ball mill inlet and outlet with reduced material blockage includes a support 1, on which a cylinder 2 is mounted. The support 1 is fixedly mounted on the floor of the workshop. The cylinder 2 is rotatably connected to the support 1. The support 1 is provided with a positioning mechanism connected to the cylinder 2. The positioning mechanism includes a limiting ring 3. The limiting ring 3 is internally threaded with a limiting bolt 4. The positioning of the cylinder 2 is achieved by rotating the limiting bolt 4 to press the outside of the cylinder 2.

[0024] The cylinder body 2 is rotatably connected to the inlet and outlet of the ball mill. A push rod 5 is slidably installed at the end of the cylinder body 2. The push rod 5 slides horizontally inside the cylinder body 2, and the end of the push rod 5 extends into the inlet and outlet. A rubber conical dust cover 15 is installed inside the cylinder body 2 and sleeved on the push rod 5. The installation height of the push rod 5 is in the upper middle part of the inlet and outlet to reduce the impact of the push rod 5 on the material moving inside the cylinder body 2. A pipe 6 is provided on the side of the cylinder body 2. When installed at the outlet, the cylinder body 2 is rotated to the position where the pipe 6 is downward. When installed at the inlet, the cylinder body 2 is rotated to the position where the pipe 6 is upward.

[0025] A brush 7 is provided at one end of the push rod 5 near the inlet / outlet. The brush 7 is vertically positioned at the top of the push rod 5 to reduce the impact of the brush 7 on the material moving inside the cylinder 2. An eccentric wheel 8 is rotatably mounted on the support 1 outside the cylinder 2. A crank 9 is rotatably connected to the eccentric wheel 8. The other end of the crank 9 is rotatably connected to the end of the push rod 5. The rotation of the eccentric wheel 8 drives the push rod 5 to move back and forth, using the brush 7 to clean the material clogging the screen. Multiple pusher rods 10 are spaced apart on the side of the push rod 5. The pusher rods 10 loosen the material and prevent material accumulation from causing blockage.

[0026] A reducer 11 is installed on the support 1. The reducer 11 includes an input shaft and an output shaft connected to the eccentric wheel 8. A drive gear ring 12 is installed at the inlet and outlet of the ball mill. The drive gear 14 rotates synchronously with the ball mill. A transmission shaft 13 is rotatably installed on the support 1. A gear 14 is installed at one end of the transmission shaft 13 near the drive gear 14. The gear 14 meshes with the drive gear ring 12. The transmission shaft 13 is coaxially connected to the input shaft by a coupling.

[0027] The working principle is as follows:

[0028] During the feeding and discharging process into the ball mill, the ball mill rotates, and the eccentric wheel 8 is driven to rotate through the meshing of gear 14 and drive gear ring 12 and the reducer 11. The rotation of the eccentric wheel 8 drives the push rod 5 to move back and forth. During the reciprocating movement of the push rod 5, the brush 7 cleans the screen reciprocally to reduce blockage during the feeding process. At the same time, the push rod 10 loosens the material to prevent material accumulation and blockage.

[0029] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A ball mill inlet / outlet design to reduce material blockage, characterized in that: The device includes a support (1), on which a cylinder (2) is mounted. The cylinder (2) is rotatably connected to the inlet and outlet of the ball mill. A push rod (5) is slidably mounted at the end of the cylinder (2). A pipe (6) is mounted on the side of the cylinder (2). A brush (7) is mounted on the end of the push rod (5) near the inlet and outlet. An eccentric wheel (8) is rotatably mounted on the support (1) outside the cylinder (2). A crank (9) is rotatably connected to the eccentric wheel (8). The other end of the crank (9) is connected to the push rod (5). The end of the ball mill is rotatably connected. A reducer (11) is provided on the bracket (1). The reducer (11) includes an input shaft and an output shaft connected to the eccentric wheel (8). A drive gear ring (12) is provided at the inlet and outlet of the ball mill. A transmission shaft (13) is rotatably provided on the bracket (1). A gear (14) is provided at one end of the transmission shaft (13) near the drive gear (14). The gear (14) meshes with the drive gear (14). The transmission shaft (13) is coaxially connected to the input shaft by a coupling.

2. The ball mill inlet / outlet for reducing material blockage as described in claim 1, characterized in that: The push rod (5) is provided with multiple push rods (10) spaced apart on its side.

3. The ball mill inlet / outlet for reducing material blockage as described in claim 1, characterized in that: The brush (7) is vertically positioned at the upper end of the push rod (5).

4. The ball mill inlet and outlet for reducing material blockage as described in claim 1, characterized in that: The inside of the cylinder (2) is provided with a rubber conical dust cover (15) that is sleeved on the push rod (5).

5. A ball mill inlet / outlet for reducing material blockage as described in claim 1, characterized in that: The push rod (5) is installed at the upper middle part of the inlet and outlet.

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