Efficient lithium ore ball mill

Abstract

The invention discloses an efficient lithium ore ball mill, and relates to the technical field of ball mills, the efficient lithium ore ball mill comprises a rotary inner cylinder and a movable screening assembly, and a communication port is formed in one end of the axis of the rotary inner cylinder. In the using process, through linkage cooperation of the movable screening assembly and the reciprocating adjusting assembly, on one hand, the rotary inner barrel drives the screening barrel externally connected to the communicating opening to synchronously rotate at a constant speed through the connecting rod, particle size screening of material particles obtained after rough grinding is achieved, and the particle uniformity of follow-up fine grinding is guaranteed; the change of the inclination angle of the lower inclined plate is controlled through the telescopic rod, so that the screen barrel keeps rotating synchronously with the rotating inner barrel, meanwhile, the connecting rod is located in the through hole in the end of the rotating inner barrel to swing in a reciprocating mode, materials blocked in a grid gap are stripped under the action of inertia and centrifugal force, and therefore self-cleaning of the screen barrel in the using process can be achieved; and the continuous working time of the ball mill is prolonged, so that the use efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ball mills, in particular to a high-efficiency lithium ore ball mill. Background Art

[0002] After lithium ore is mined, it is in large blocks. In order to facilitate transportation and subsequent use, it needs to be processed step by step, such as crushing and grinding. The ball mill is the key equipment for grinding lithium ore after it is crushed. The ball mill barrel in the prior art is equipped with grinding bodies, which are generally steel balls and are loaded into the barrel according to different diameters and a certain proportion. When the barrel of the ball mill rotates, the grinding bodies are attached to the barrel lining due to inertia, centrifugal force and friction and are carried away by the barrel. When they are brought to a certain height, they are thrown down due to their own gravity. The falling grinding bodies produce a heavy impact and grinding effect on the materials in the barrel like a projectile.

[0003] However, when the size of the material entering the ball mill is large, it takes a longer time to grind to reach the required particle size, which will lead to reduced grinding efficiency and increased energy consumption, and may cause uneven distribution of the ground material particles, affecting product quality.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a high-efficiency lithium ore ball mill is proposed. Summary of the invention

[0005] The object of the present invention is to provide a high-efficiency lithium ore ball mill to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency lithium ore ball mill, comprising a rotating inner cylinder and a movable screening assembly, a connecting port is provided at one end of the axis of the rotating inner cylinder, and through holes are symmetrically provided at the upper and lower ends of the connecting port, the movable screening assembly is slidably installed on the end of the rotating inner cylinder, the movable screening assembly comprises a screen barrel, a grid, a connecting rod, a reset spring and a ball seat, the inner cavity of the screen barrel is connected with the rotating inner cylinder through the connecting port, and the screen barrel is fixed with a grid in a circumferential array, and gaps are left between adjacent grids, connecting rods are fixedly installed at both ends of one side of the screen barrel, and the connecting rods are slidably matched with the corresponding through holes, and a reset spring is sleeved on the connecting rod in the gap between the screen barrel and the rotating inner cylinder, a ball seat is fixedly installed on the outer edge of the other side of the screen barrel, and a movable ball is rollingly installed inside the ball seat.

[0007] Furthermore, the outer wall of the rotating inner cylinder is radially surrounded by a grinding roller, the inner wall of the rotating inner cylinder is fixedly installed with an inner lining plate, and the cavity of the rotating inner cylinder is filled with steel balls.

[0008] Furthermore, a discharge port is provided at the other end of the axis of the rotating inner cylinder, and the discharge port is connected in series with the wind system through an air duct so that the rotating inner cylinder is in a negative pressure state.

[0009] Furthermore, a gear ring is arranged around the outer edge of the discharge port, and the gear ring is meshed with a gear at the output end of the driving device to realize rotation transmission.

[0010] Furthermore, a fixed outer cylinder is sleeved on the outer side of the rotating inner cylinder, and the axes of the rotating inner cylinder and the fixed outer cylinder coincide with each other and form an angle with the horizontal plane, and an opening on one side of the fixed outer cylinder is rotatably matched with the rotating inner cylinder through a slewing bearing.

[0011] Furthermore, an air duct is embedded in the inner wall of the fixed outer cylinder, and the inlets and outlets on both sides of the "U"-shaped structure of the air duct are respectively located at the head and tail ends of the grinding roller axis.

[0012] Furthermore, a feed port is connected to the side end of the fixed outer cylinder, and the feed port is connected to the lithium ore silo through a feeder.

[0013] Furthermore, an outer lining plate is fixed to the inner wall of the fixed outer cylinder by screws, and a ring channel cooperating with the grinding roller is opened on the inner wall of the outer lining plate.

[0014] Furthermore, a reciprocating adjustment component is fixed by screws on the opening on the other side of the fixed outer cylinder, and the reciprocating adjustment component includes an end cover, a slag discharge port and a telescopic rod. The end cover is fastened to a screw hole reserved in the opening on the other side of the fixed outer cylinder by screws, and the bottom side of the end cover is connected to the slag discharge port, and the outer side of the end cover is threadedly connected to the telescopic rod.

[0015] Furthermore, the reciprocating adjustment assembly also includes a rotating pin and an inclined plate. The rotating pin is fixedly installed on the inner side of the end cover, and the rotating pin is rotatably connected to one end of the inclined plate. The other end of the inclined plate is abutted against the end of the telescopic rod, and the inclined plate disk is rollingly matched with the movable ball in the ball seat.

[0016] The present invention provides a high-efficiency lithium ore ball mill, which has the following beneficial effects: 1. During the use of the present invention, the axes of the fixed outer cylinder and the rotating inner cylinder embedded therein coincide with each other and form an angle with the horizontal plane. On the one hand, the lithium ore material is scattered into the ring channel of the inner wall of the fixed outer cylinder under the action of gravity, so that the rotating inner cylinder can roughly grind the lithium ore material by rolling the grinding rollers arranged radially on the outer edge in the ring channel of the inner wall of the fixed outer cylinder. On the other hand, the discharge port of the rotating inner cylinder is connected in series with the wind system through the air duct, so that the rotating inner cylinder is in a negative pressure state, so that the roughly ground lithium ore material flows back from the air duct to the screen barrel at the head end of the rotating inner cylinder, and the qualified material is sucked into the rotating cylinder through the grid gap on the outer edge of the screen barrel. During the rotation of the inner drum, the falling steel balls act like projectiles to hit and grind the materials in the drum to achieve fine grinding of the lithium ore materials, while the unqualified materials fall back and are coarsely ground again until they meet the particle size standards. This application effectively facilitates the grinding of materials by the ball mill by first coarsely grinding the lithium ore materials and then finely grinding them, thereby expanding the scope of application of the ball mill, reducing the grinding time of the materials, improving the grinding efficiency, and reducing the energy consumption of the equipment. The coarsely ground lithium ore materials are screened to control the particle size and uniformity of the materials, thereby further optimizing the grinding effect.

[0017] 2. During the use of the present invention, the present application uses the linkage cooperation of the movable screening component and the reciprocating adjustment component. On the one hand, the rotating inner cylinder drives the external screen barrel at the connecting port to rotate synchronously and uniformly through the connecting rod, thereby realizing particle size screening of the material particles after coarse grinding to ensure the uniformity of the particles in subsequent fine grinding. On the other hand, the telescopic rod controls the change of the inclination angle of the lower inclined plate, so that the screen barrel can keep rotating synchronously with the rotating inner cylinder while also swinging back and forth in the through hole at the end of the rotating inner cylinder through the connecting rod. Under the action of inertia and centrifugal force, the material blocked in the gap of the grille is peeled off, so that the screen barrel can be self-cleaned during use without stopping for maintenance and dredging, thereby extending the continuous working time of the ball mill to improve the use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention; Figure 2 It is a schematic diagram of the split structure of the device of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the device of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the fixed outer cylinder of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the rotating inner cylinder of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the end cover of the present invention; Figure 7 It is a schematic diagram of the structure of the movable screening assembly of the present invention.

[0019] In the figure: 1. rotating inner cylinder; 2. connecting port; 3. through hole; 4. movable screening assembly; 401. screen barrel; 402. grille; 403. connecting rod; 404. return spring; 405. ball seat; 5. grinding roller; 6. inner lining plate; 7. steel ball; 8. discharge port; 9. gear ring; 10. fixed outer cylinder; 11. air duct; 12. feed port; 13. outer lining plate; 14. ring channel; 15. reciprocating adjustment assembly; 1501. end cover; 1502. slag discharge port; 1503. telescopic rod; 1504. rotating pin; 1505. inclined plate. DETAILED DESCRIPTION

[0020] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention. See also Figures 5 to 7 The present invention provides a technical solution: a high-efficiency lithium ore ball mill, comprising a rotating inner cylinder 1 and a movable screening assembly 4, wherein a connecting port 2 is provided at one end of the axis of the rotating inner cylinder 1, and through holes 3 are symmetrically provided at the upper and lower ends of the connecting port 2, and the movable screening assembly 4 is slidably installed at the end of the rotating inner cylinder 1, and the movable screening assembly 4 comprises a screening barrel 401, a grille 402, a connecting rod 403, a return spring 404 and a ball seat 405, the inner cavity of the screening barrel 401 is connected with the rotating inner cylinder 1 through the connecting port 2, and the grille 402 is fixed to the circumferential array of the screening barrel 401, and a gap is left between adjacent grilles 402, connecting rods 403 are fixedly installed at both ends of one side of the screening barrel 401, and the connecting rod 403 is slidably matched with the corresponding through hole 3, and a return spring 404 is sleeved on the connecting rod 403 in the gap between the screening barrel 401 and the rotating inner cylinder 1, and the outer edge of the other side of the screening barrel 401 is fixedly installed A ball seat 405 is installed, and a movable ball is rollingly installed inside the ball seat 405. A reciprocating adjustment component 15 is fixed by screws on the opening on the other side of the fixed outer cylinder 10. The reciprocating adjustment component 15 includes an end cover 1501, a slag discharge port 1502 and a telescopic rod 1503. The end cover 1501 is fastened to the screw hole reserved in the opening on the other side of the fixed outer cylinder 10 by screws, and the bottom side of the end cover 1501 is connected with the slag discharge port 1502, and the outer side of the end cover 1501 is threadedly connected with the telescopic rod 1503. The reciprocating adjustment component 15 also includes a rotating pin 1504 and an inclined plate 1505. A rotating pin 1504 is fixedly installed on the inner side of the end cover 1501, and the rotating pin 1504 is rotatably connected to one end of the inclined plate 1505, and the other end of the inclined plate 1505 is abutted against the end of the telescopic rod 1503, and the disk surface of the inclined plate 1505 is rollingly matched with the movable ball in the ball seat 405. The specific operation is as follows. During continuous use, the lithium ore material will gradually block the gap between the grille 402 on the outer edge of the screen barrel 401, resulting in poor material passage and accumulation. In traditional technology, the ball mill often needs to be shut down and the screen barrel 401 needs to be disassembled for unblocking and cleaning. During use of the present application, the user only needs to turn the hand wheel to control the telescopic rod 1503 to abut against one end of the inclined plate 1505, so that the other end of the inclined plate 1505 is located on the inner side of the end cover 1501 and tilted through the rotating pin 1504. In this way, the ball seat 405 on the outer edge of the head end of the screen barrel 401 rolls on the inclined disk of the end cover 1501, and slides back and forth in the through holes 3 at both ends of the connecting port 2 at the end of the rotating inner cylinder 1 through the connecting rods 403 on both sides of the rear end of the screen barrel 401. The setting of the return spring 404 ensures that the ball seat 405 on the outer edge of the head end of the screen barrel 401 is always close to the end The cover 1501 tilts the disk surface to ensure the continuation of the reciprocating motion. The present application uses the linkage cooperation of the movable screening component 4 and the reciprocating adjustment component 15. On the one hand, the rotating inner cylinder 1 drives the screen barrel 401 connected to the connecting port 2 to rotate synchronously and uniformly through the connecting rod 403, so as to achieve particle size screening of the coarsely ground material particles to ensure the uniformity of the subsequent finely ground particles. On the other hand, the telescopic rod 1503 controls the change of the inclination angle of the lower inclined plate 1505, so that the screen barrel 401 keeps rotating synchronously with the rotating inner cylinder 1 while also swinging back and forth in the through hole 3 at the end of the rotating inner cylinder 1 through the connecting rod 403. Under the action of inertia and centrifugal force, the material blocked in the gap of the grille 402 is peeled off, so that the screen barrel 401 can be self-cleaned during use without stopping for maintenance and dredging, thereby extending the continuous working time of the ball mill to improve the use efficiency. See also Figures 1 to 4 The outer wall of the rotating inner cylinder 1 is radially surrounded by a grinding roller 5, and an inner lining plate 6 is fixedly installed on the inner wall of the rotating inner cylinder 1, and the cavity of the rotating inner cylinder 1 is filled with steel balls 7. A discharge port 8 is opened at the other end of the axis of the rotating inner cylinder 1, and the discharge port 8 is connected in series with the wind system through an air duct so that the rotating inner cylinder 1 is in a negative pressure state. A gear ring 9 is surrounded by the outer edge of the discharge port 8, and the gear ring 9 is meshed with the gear at the output end of the driving device to realize rotation transmission. A fixed outer cylinder 10 is sleeved on the outside of the rotating inner cylinder 1, and the axis of the rotating inner cylinder 1 and the fixed outer cylinder 10 are connected. Overlapping and forming an angle with the horizontal plane, and an opening on one side of the fixed outer cylinder 10 is rotatably matched with the rotating inner cylinder 1 through a slewing bearing, an air duct 11 is buried in the inner wall of the fixed outer cylinder 10, and the inlets and outlets on both sides of the "U"-shaped structure of the air duct 11 are respectively located at the head and tail ends of the axis of the grinding roller 5, and the side end of the fixed outer cylinder 10 is connected with a feed port 12, and the feed port 12 is connected to the lithium ore silo through a feeder, and an outer lining plate 13 is fixed to the inner wall of the fixed outer cylinder 10 with screws, and a ring channel 14 matching the grinding roller 5 is opened on the inner wall of the outer lining plate 13; The specific operation is as follows: the solid lithium ore of the present application is crushed and sent to the feed port 12 at the side end of the fixed outer cylinder 10 by the feeder; the driving device meshes the output end gear with the gear ring 9 at the tail end of the rotating inner cylinder 1, so that the rotating inner cylinder 1 is located inside the fixed outer cylinder 10 through a slewing bearing and rotates at a constant speed; the fixed outer cylinder 10 of the present application and the axis of the rotating inner cylinder 1 embedded therein coincide with each other and form an angle with the horizontal plane; on the one hand, the lithium ore material is scattered into the annular channel 14 of the inner wall of the fixed outer cylinder 10 under the action of gravity, so that the rotating inner cylinder 1 realizes the rough grinding of the lithium ore material through the rolling of the grinding rollers 5 radially arranged on the outer edge located in the annular channel 14 of the inner wall of the fixed outer cylinder 10; on the other hand, the discharge port 8 of the rotating inner cylinder 1 is connected in series with the wind system through the air duct, so that the rotating inner cylinder 1 is in a negative pressure state, so that the roughly ground lithium ore material flows back from the air duct 11 to the screen barrel 401 at the head end of the rotating inner cylinder 1, and the qualified materials are The material is sucked into the rotating inner cylinder 1 through the gap of the grille 402 on the outer edge of the screen barrel 401. Then, during the rotation of the rotating inner cylinder 1, the built-in steel balls 7 are attached to the lining plate 6 in the cylinder due to inertia, centrifugal force and friction and are carried away by the cylinder. When they are brought to a certain height, they are thrown down due to their own gravity. The falling steel balls 7 act like projectiles to produce a heavy impact and grinding effect on the material in the cylinder to achieve fine grinding of the lithium ore material, while the unqualified material falls back and is coarsely ground again until it meets the particle size standard. The present application first coarsely grinds the lithium ore material and then finely grinds it, thereby effectively facilitating the grinding of the material by the ball mill, expanding the application range of the ball mill, reducing the grinding time of the material, improving the grinding efficiency, and reducing the energy consumption of the equipment. The coarsely ground lithium ore material is screened, which is beneficial to control the particle size and uniformity of the material, and further optimizes the grinding effect.

[0021] In summary, when using the high-efficiency lithium ore ball mill, the solid lithium ore of the present application is crushed and then sent to the feed port 12 at the side end of the fixed outer cylinder 10 by the feeder, and the driving device meshes the output end gear with the gear ring 9 at the tail end of the rotating inner cylinder 1, so that the rotating inner cylinder 1 is located inside the fixed outer cylinder 10 through a slewing bearing and rotates at a constant speed. The axis of the fixed outer cylinder 10 and the rotating inner cylinder 1 embedded therein coincide with each other and form an angle with the horizontal plane. On the one hand, the lithium ore material is scattered into the annular channel 14 of the inner wall of the fixed outer cylinder 10 under the action of gravity, so that the rotating inner cylinder 1 can achieve rough grinding of the lithium ore material through the rolling of the grinding rollers 5 radially arranged on the outer edge located in the annular channel 14 of the inner wall of the fixed outer cylinder 10. On the other hand, the discharge port 8 of the rotating inner cylinder 1 is connected to the wind through the air duct. The system is connected in series so that the rotating inner cylinder 1 is in a negative pressure state, so that the coarsely ground lithium ore material flows back from the air duct 11 to the screen barrel 401 at the head end of the rotating inner cylinder 1, and the qualified material is sucked into the rotating inner cylinder 1 through the gap of the grille 402 on the outer edge of the screen barrel 401. After that, during the rotation of the rotating inner cylinder 1, the built-in steel balls 7 are attached to the lining plate 6 in the cylinder due to inertia, centrifugal force and friction, and are carried away by the cylinder. When they are brought to a certain height, they are thrown down due to their own gravity. The falling steel balls 7 hit and grind the materials in the cylinder like projectiles to achieve fine grinding of the lithium ore material, while the unqualified materials fall back and are coarsely ground again until they meet the particle size standard. The present application first coarsely grinds the lithium ore material Grinding, and then fine grinding, which effectively brings convenience to the ball mill for grinding materials, expands the application range of the ball mill, reduces the grinding time of materials, improves grinding efficiency, reduces equipment energy consumption, and the lithium ore materials after coarse grinding are screened, which is beneficial to control the particle size and uniformity of the materials, and further optimize the grinding effect. During continuous use, the lithium ore materials will gradually block the gap between the grille 402 on the outer edge of the screen barrel 401, resulting in poor material passage and accumulation. In traditional technology, it is often necessary to stop the ball mill and disassemble the screen barrel 401 for unblocking and cleaning. During the use of the present application, the user only needs to turn the hand wheel to control the telescopic rod 1503 to abut against one end of the inclined plate 1505, so that the other end of the inclined plate 1505 is rotated through the pin 1 504 is located on the inner side of the end cover 1501 and is tilted. In this way, the ball seat 405 on the outer edge of the head end of the screen barrel 401 slides back and forth in the through holes 3 at both ends of the connecting port 2 at the end of the rotating inner cylinder 1 through the connecting rods 403 on both sides of the tail end of the screen barrel 401 during the rolling process on the tilted disk surface of the end cover 1501. The setting of the return spring 404 ensures that the ball seat 405 on the outer edge of the head end of the screen barrel 401 is always close to the tilted disk surface of the end cover 1501 to ensure the continuous reciprocating motion. The present application uses the linkage cooperation of the movable screening component 4 and the reciprocating adjustment component 15. On the one hand, the rotating inner cylinder 1 drives the screen barrel 401 connected to the connecting port 2 to rotate synchronously and at a uniform speed through the connecting rod 403, thereby realizing the particle size screening of the coarsely ground material particles to ensure the uniformity of the subsequent finely ground particles.On the other hand, the inclination angle of the lower inclined plate 1505 is controlled by the telescopic rod 1503, so that the screen barrel 401 can keep rotating synchronously with the rotating inner cylinder 1 while also swinging back and forth in the through hole 3 at the end of the rotating inner cylinder 1 through the connecting rod 403, so that the materials blocked in the gap of the grille 402 can be peeled off under the action of inertia and centrifugal force, so that the screen barrel 401 can be self-cleaned during use, without stopping for maintenance and dredging, and the continuous working time of the ball mill can be extended to improve the use efficiency.

[0022] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various implementations with various modifications suitable for specific uses.

Claims

1. A high-efficiency lithium ore ball mill, characterized in that: The invention comprises a rotating inner cylinder (1) and a movable screening assembly (4); a connecting port (2) is provided at one end of the axis of the rotating inner cylinder (1); and through holes (3) are symmetrically provided at the upper and lower ends of the connecting port (2); the movable screening assembly (4) is slidably mounted on the end of the rotating inner cylinder (1); the movable screening assembly (4) comprises a screening barrel (401), a grille (402), a connecting rod (403), a return spring (404) and a ball seat (405); the inner cavity of the screening barrel (401) is connected to the rotating inner cylinder (1) through the connecting port (2); The screen barrel (401) is fixed with grilles (402) in a circumferential array, and gaps are left between adjacent grilles (402); connecting rods (403) are fixedly mounted at both ends of one side of the screen barrel (401), and the connecting rods (403) are slidably matched with corresponding through holes (3); a return spring (404) is sleeved on the connecting rod (403) in the gap between the screen barrel (401) and the rotating inner cylinder (1); a ball seat (405) is fixedly mounted on the outer edge of the other side of the screen barrel (401), and a movable ball is rotatably mounted inside the ball seat (405).

2. The high-efficiency lithium ore ball mill according to claim 1, characterized in that: The outer wall of the rotating inner cylinder (1) is radially surrounded by a grinding roller (5), the inner wall of the rotating inner cylinder (1) is fixedly mounted with an inner lining plate (6), and the cavity of the rotating inner cylinder (1) is filled with steel balls (7).

3. A high-efficiency lithium ore ball mill according to claim 2, characterized in that: A discharge port (8) is provided at the other end of the axis of the rotating inner cylinder (1), and the discharge port (8) is connected in series with the wind system via an air duct so that the rotating inner cylinder (1) is in a negative pressure state.

4. The high-efficiency lithium ore ball mill according to claim 3, characterized in that: The outer edge of the discharge port (8) is surrounded by a gear ring (9), and the gear ring (9) meshes with a gear at the output end of the drive device to achieve rotational transmission.

5. The high-efficiency lithium ore ball mill according to claim 4, characterized in that: The rotating inner cylinder (1) is sleeved with a fixed outer cylinder (10), the axes of the rotating inner cylinder (1) and the fixed outer cylinder (10) coincide with each other and form an angle with the horizontal plane, and an opening on one side of the fixed outer cylinder (10) is rotatably matched with the rotating inner cylinder (1) via a slewing bearing.

6. The high-efficiency lithium ore ball mill according to claim 5, characterized in that: An air duct (11) is embedded in the inner wall of the fixed outer cylinder (10), and the inlets and outlets on both sides of the "U"-shaped structure of the air duct (11) are respectively located at the head and tail ends of the axis of the grinding roller (5).

7. The high-efficiency lithium ore ball mill according to claim 6, characterized in that: A feed port (12) is connected to a side end of the fixed outer cylinder (10), and the feed port (12) is connected to a lithium ore silo via a feeder.

8. The high-efficiency lithium ore ball mill according to claim 7, characterized in that: An outer lining plate (13) is screwed onto the inner wall of the fixed outer cylinder (10), and a ring channel (14) matching with the grinding roller (5) is formed on the inner wall of the outer lining plate (13).

9. The high-efficiency lithium ore ball mill according to claim 8, characterized in that: A reciprocating adjustment component (15) is screwed to the opening on the other side of the fixed outer cylinder (10), and the reciprocating adjustment component (15) comprises an end cover (1501), a slag discharge port (1502) and a telescopic rod (1503). The end cover (1501) is fastened to a screw hole reserved in the opening on the other side of the fixed outer cylinder (10) by means of screws, and the bottom side of the end cover (1501) is connected to the slag discharge port (1502), and the outer side of the end cover (1501) is threadedly connected to the telescopic rod (1503).

10. The high-efficiency lithium ore ball mill according to claim 9, characterized in that: The reciprocating adjustment assembly (15) further comprises a rotating pin (1504) and an inclined plate (1505); the rotating pin (1504) is fixedly mounted on the inner side of the end cover (1501); the rotating pin (1504) is rotatably connected to one end of the inclined plate (1505); the other end of the inclined plate (1505) is in contact with the end of the telescopic rod (1503); and the disk surface of the inclined plate (1505) and the movable ball in the ball seat (405) are in rolling cooperation.

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