Grinding machine for lepidolite ore processing

Abstract

The invention belongs to the technical field of grinding machining, and particularly relates to a grinding machine for lepidolite ore machining, which comprises a base, a barrel is rotatably arranged on the upper part of the base, a plurality of grinding steel balls are arranged in the barrel, a plurality of groups of lining plates are laid in the barrel, and the plurality of groups of lining plates are combined and spliced in the barrel to form a grinding cavity; a plurality of isolation plates distributed in the length direction of the barrel are fixedly arranged in the grinding cavity, material guiding mechanisms symmetrically arranged in the radial direction of the grinding cavity are arranged on the inner wall of the grinding cavity, and a horn-shaped screen frame is fixedly arranged in the rear end of the grinding cavity. A plurality of partition plates for dividing the grinding cavity into a plurality of independent grinding spaces are arranged in the grinding cavity, grinding steel balls in the grinding cavity are evenly distributed on the premise that grinding and conveying of raw materials in the grinding cavity are not affected, it is ensured that the raw materials can be effectively and fully ground and extruded by the grinding steel balls in each area, and the grinding efficiency of the raw materials is improved. And sufficient grinding of raw materials is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of grinding processing, and in particular relates to a grinding machine for processing lepidolite ore. Background Art

[0002] Ball mill is one of the necessary equipment in the production and processing of lepidolite ore. For example, the fine grinding process after the coarse crushing of lepidolite ore, the mineral dissociation grinding process before flotation, the regrinding process of lepidolite roasting products, the ultrafine activation grinding process before leaching, and the tailings reprocessing grinding process after flotation all require ball mill for grinding processing. The main working principle is to feed the lepidolite ore raw material into the cylinder through the feed port. There are a large number of steel balls inside the cylinder. The rotation of the cylinder continuously drives the steel balls to move, impacting, shearing and squeezing the raw materials, thereby achieving crushing and grinding of the raw materials.

[0003] However, the existing ball mill has the following defects: 1. After the raw materials enter the ball mill cylinder, due to the action of gravity, some of the raw materials will still accumulate inside the lower end of the cylinder even if the cylinder is constantly rotating. When the steel balls are thrown down and hit the surface of the raw materials, the thick accumulation of raw materials will reduce the effect of the steel balls on squeezing and grinding the raw materials.

[0004] 2. Qualified raw materials will be discharged from the discharge end through the sieve plate inside the cylinder. However, some unqualified raw materials will be retained near the sieve plate. In addition, in order to facilitate the movement of raw materials in the cylinder, the cylinder is usually arranged at a certain angle. These raw materials retained near the sieve plate are difficult to return to the grinding area and be re-grinded by the steel balls, resulting in the gradual accumulation of unqualified raw materials at the sieve plate, which needs to be cleaned regularly, otherwise it will affect the processing efficiency and effect of the entire ball mill. Summary of the Invention

[0005] In order to solve the above technical problems, the embodiments of the present application provide the following technical solutions: The present invention provides a grinding machine for processing lithium mica ore, comprising a base, a cylinder rotatably provided on the upper part of the base, a plurality of grinding steel balls provided inside the cylinder, a plurality of groups of lining plates laid inside the cylinder, the plurality of groups of lining plates are combined and spliced ​​inside the cylinder to form a grinding chamber, the lining plates are fixed to the cylinder by bolts, a plurality of isolation plates distributed along the length direction of the cylinder are fixedly provided in the grinding chamber, the inner wall of the grinding chamber is provided with a material guiding mechanism symmetrically arranged along its radial direction, the rear end of the grinding chamber is fixed with a trumpet-shaped screen frame, the annular wall of the screen frame is provided with a plurality of sieve holes, and a material return mechanism is provided between the screen frame and the adjacent isolation plates. The material guide mechanism includes multiple bases fixedly mounted on the inner wall of the grinding chamber. The multiple bases and multiple isolation plates are staggered within the grinding chamber. A discharge port is defined at one end of the base away from the grinding chamber axis. A first scraper is rotatably mounted on the end of the base near the grinding chamber axis. Multiple springs are fixedly mounted on the side of the first scraper near its rotation point. A connecting plate is fixedly mounted on the ends of the multiple springs away from the first scraper, and the connecting plate is fixedly connected to the base. A connecting rod is fixedly mounted between the multiple first scraper plates of the same material guide mechanism. The rear end of the connecting rod is movably connected to an L-shaped swing rod. The end of the swing rod near the connecting rod movably abuts against the screen frame. The end of the swing rod away from the connecting rod is rotatably connected to the screen frame via a torsion spring.

[0006] According to a favorable embodiment, a first support seat is fixedly provided on the upper part of the front and rear ends of the base, the front and rear ends of the cylinder are rotatably connected to the adjacent first support seats, the front end of the cylinder is fixedly connected to a feed pipe connected to the interior of the cylinder, and a spiral guide plate is fixedly provided on the inner wall of the feed pipe.

[0007] According to a favorable embodiment, a second support seat is fixedly provided on the upper part of the base and below the middle part of the cylinder, and guide wheels are rotatably provided at the front and rear ends of the upper part of the second support seat. A connecting ring is fixedly provided in the middle part of the outer wall of the cylinder, and the outer wall of the connecting ring is in rolling contact with the guide wheel.

[0008] According to a favorable embodiment, a discharge port is provided on the inner wall of the rear end of the grinding chamber, a material receiving seat is fixedly provided on the upper part of the base and below the discharge port, a material receiving trough is provided on the material receiving seat, and the material receiving trough is composed of an arc trough and a slope trough, a material stripping plate is movably provided in the material receiving trough, and the material stripping plate is fixedly connected to the outer wall of the cylinder, and the screen frame is located on the left side of the discharge port.

[0009] According to an advantageous embodiment, a gear ring is fixedly provided on the rear end outer wall of the cylinder, a transmission gear is meshed on the gear ring, and the transmission gear is connected to a drive motor fixedly provided on the left side wall of the base through a connecting shaft.

[0010] According to a favorable embodiment, two arc-shaped first movable holes are opened on the surface of the isolation plate, the connecting rod is movably arranged in the corresponding first movable holes, the grinding chamber is set to a cylindrical structure, and the isolation plate is set to a circular shape. The diameter of the isolation plate is smaller than the diameter of the grinding chamber, and a conveying channel for raw materials to pass through is formed between the outer wall of the isolation plate and the inner wall of the grinding chamber.

[0011] According to a favorable embodiment, limit pins are fixedly provided on the front and rear side walls of the first scraper plate, and a limit block movably abutting against the limit pin is fixedly provided on the base, and the limit block is located above and on the same side as the corresponding connecting plate.

[0012] According to a favorable embodiment, the swing rod is composed of an impact section and a rotating shaft section fixedly connected to the impact section. A second movable hole is opened on the surface of the impact section in the swing rod. The end of the connecting rod close to the screen frame movably passes through the second movable hole and is fixedly connected to the limiting plate.

[0013] According to a favorable embodiment, the return material mechanism includes a return material pipe, the return material mechanism includes a return material pipe, the front end of the return material pipe is fixedly arranged on the adjacent isolation plate, the rear end of the return material pipe is fixedly arranged on the screen frame, a return material channel is arranged inside the return material pipe, a second scraper plate is arranged on the inner wall of the screen frame, and an injection port is opened on the return material channel at a position opposite to the second scraper plate.

[0014] According to an advantageous embodiment, a baffle with an arc-shaped structure is fixedly provided in the injection port, and the return channel is configured as a truncated cone-shaped channel with a diameter gradually decreasing from front to back.

[0015] Compared with the prior art, the grinding machine for processing lepidolite ore provided by the embodiment of the present invention has the following beneficial effects: 1. In the present invention, a plurality of isolation plates are provided in the grinding chamber to divide the grinding chamber into a plurality of independent grinding spaces. Under the premise of not affecting the grinding and transportation of the raw materials in the grinding chamber, the grinding steel balls in the grinding chamber are evenly distributed, ensuring that the raw materials can be effectively and fully ground and squeezed by the grinding steel balls in each area, thereby ensuring that the raw materials are fully ground.

[0016] 2. The material guide mechanism provided in the present invention rotates together with the cylinder, and lifts part of the raw materials accumulated inside the lower end of the cylinder during the rotation, thereby reducing the accumulation of raw materials inside the cylinder, so that when the grinding steel balls hit the surface of the raw materials, they can better cooperate with the liner to grind and extrude the raw materials, thereby improving the grinding quality of the raw materials by the grinding steel balls.

[0017] 3. The material guiding mechanism provided in the present invention drives the swinging rod to cyclically impact the screen frame through the connecting rod, thereby promoting the passage of the raw materials through the sieve holes on the surface of the screen frame and reducing the risk of clogging of the sieve holes on the surface of the screen frame.

[0018] 4. The material return mechanism provided in the present invention cooperates with the screen frame to transfer the insufficiently ground raw materials from the vicinity of the screen frame to the previous grinding space, thereby preventing the raw materials that cannot pass through the screen frame from being trapped near the screen frame for a long time, without the need for subsequent shutdown processing, thereby improving the grinding processing efficiency of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural diagram of the present invention as a whole.

[0020] Figure 2 It is a partial cross-sectional view of the present invention.

[0021] Figure 3 It is a half-section schematic diagram of the present invention.

[0022] Figure 4 It is a side sectional view of the material receiving seat of the present invention.

[0023] Figure 5 It is a side sectional view of the cylinder of the present invention.

[0024] Figure 6 It is a three-dimensional structural diagram of the material guiding mechanism of the present invention.

[0025] Figure 7 for Figure 6 A magnified structural diagram of part A.

[0026] Figure 8 It is a three-dimensional structural diagram of the material guiding mechanism, screen frame and material returning mechanism of the present invention.

[0027] Figure 9 for Figure 8 Enlarged structural diagram of part B.

[0028] Figure 10 It is a partial cross-sectional view of the return pipe of the present invention.

[0029] Figure 11 It is a cross-sectional view of the screen frame of the present invention.

[0030] Reference numerals in the figures: 1, base; 2, cylinder; 3, grinding steel balls; 4, lining plate; 5, grinding chamber; 6, isolation plate; 7, material guide mechanism; 701, base; 7011, discharge port; 702, first scraper; 703, spring; 704, connecting plate; 8, material return mechanism; 801, material return pipe; 802, material return channel; 803, second scraper; 804, material injection port; 805, baffle; 9, connecting rod; 10, swing rod; 11, torsion spring; 12. First support seat; 13. Feed pipe; 14. Spiral guide plate; 15. Second support seat; 16. Guide wheel; 17. Connecting ring; 18. Discharge port; 19. Material receiving seat; 20. Material receiving trough; 21. Gear ring; 22. Transmission gear; 23. Drive motor; 24. First movable hole; 25. Conveying channel; 26. Limit pin; 27. Limit block; 28. Second movable hole; 29. ​​Limit disk; 30. Screen frame; 31. Screen hole; 32. Material selector plate. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-11 This application is described in further detail.

[0032] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 5A grinding machine for processing lepidolite ore comprises a base 1, a cylinder 2 rotatably provided on the upper part of the base 1, a plurality of grinding steel balls 3 are provided inside the cylinder 2, a first support seat 12 is fixedly provided on the upper part of the front and rear ends of the base 1, the front and rear ends of the cylinder 2 are rotatably connected to the adjacent first support seat 12, a feed pipe 13 communicating with the interior of the cylinder 2 is fixedly connected to the front end of the cylinder 2, and a spiral guide plate 14 is fixedly provided on the inner wall of the feed pipe 13. A plurality of groups of lining plates 4 are laid on the interior of the cylinder 2, and the plurality of groups of lining plates 4 are assembled and spliced ​​together to form a grinding chamber 5 inside the cylinder 2, and the lining plates 4 are fixed to the cylinder 2 by bolts. A second support seat 15 is fixedly provided on the upper part of the base 1 and located below the middle part of the cylinder 2, and guide wheels 16 are rotatably provided on the front and rear ends of the upper part of the second support seat 15, a connecting ring 17 is fixedly provided on the middle part of the outer wall of the cylinder 2, and the outer wall of the connecting ring 17 is in rolling contact with the guide wheel 16. A gear ring 21 is fixedly provided on the outer wall of the rear end of the cylinder 2, and a transmission gear 22 is meshed on the gear ring 21. The transmission gear 22 is connected to a drive motor 23 fixed on the left side wall of the base 1 through a connecting shaft. The entire grinder is tilted and installed on the external support platform through the base 1. Both ends of the cylinder 2 are supported by the first support seat 12. At the same time, the middle position of the cylinder 2 is supported by the second support seat 15 and the guide wheel 16, so that the cylinder 2 can rotate stably. During operation, the transmission gear 22 is driven to rotate by the drive motor 23, so that the gear ring 21 on the cylinder 2 can drive the cylinder 2 to rotate, and the raw material is fed into the feed pipe 13. The spiral guide plate 14 in the feed pipe 13 can feed the raw material into the cylinder 2 stably and continuously. When the cylinder 2 rotates, the grinding steel balls 3 are rotated to a certain height under the action of centrifugal force and then thrown down to squeeze and grind the raw materials inside the lower end of the cylinder 2. It should be noted that the size and shape of the two first support seats 12 at the front and rear are designed according to other structural designs, such as Figure 1 As shown, the front and rear first support seats 12 have certain differences in size and shape, and both function to support the cylinder 2 .

[0033] See Figure 3 and Figure 4 A discharge port 18 is provided on the inner wall of the rear end of the grinding chamber 5. A material receiving seat 19 is fixedly provided on the upper part of the base 1 and below the discharge port 18. A material receiving trough 20 is provided on the material receiving seat 19. The material receiving trough 20 is composed of an arc-shaped groove and a sloped groove. A material stripping plate 32 is movably provided in the material receiving trough 20 and is fixedly connected to the outer wall of the cylinder 2. The ground raw material is discharged from the discharge port 18 and falls into the arc-shaped groove of the material receiving trough 20 below. The material stripping plate 32 then rotates with the cylinder 2. During the rotation, the material stripping plate 32 pushes the raw material in the arc-shaped groove of the material receiving trough 20 into the sloped groove, and finally slides into the external collection device.

[0034] See Figure 2 、 Figure 3 and Figure 5A plurality of isolation plates 6 are fixedly arranged in the grinding chamber 5 and distributed along the length direction of the cylinder 2. The grinding chamber 5 is set to a cylindrical structure, and the isolation plates 6 are set to be circular. The diameter of the isolation plates 6 is smaller than the diameter of the grinding chamber 5. A conveying channel 25 for the raw materials to pass through is formed between the outer wall of the isolation plates 6 and the inner wall of the grinding chamber 5.

[0035] In order to disperse the grinding steel balls 3 in the grinding chamber 5 in multiple areas of the grinding chamber 5 as much as possible, multiple isolation plates 6 are set in the grinding chamber 5. A grinding space is formed between two adjacent isolation plates 6 and between the frontmost isolation plate 6 and the front inner wall of the grinding chamber 5. Each grinding space is filled with multiple grinding steel balls 3. The raw materials can be ground in the grinding space while gradually moving from front to back toward the discharge port 18 through the conveying channel 25, avoiding the problem of uneven grinding caused by the accumulation of the grinding steel balls 3 in the grinding chamber 5, so that the grinding steel balls 3 can be evenly distributed in various areas of the grinding chamber 5, ensuring that the raw materials can be ground in an orderly and sufficient manner.

[0036] See Figure 2 、 Figure 3 、 Figure 6 and Figure 7 The inner wall of the grinding chamber 5 is mounted with a material guide mechanism 7 arranged symmetrically along its radial direction. The material guide mechanism 7 includes multiple bases 701 fixedly mounted on the inner wall of the grinding chamber 5. The multiple bases 701 are staggered with multiple isolation plates 6 within the grinding chamber 5. A discharge port 701 is defined at one end of the base 701 away from the axis of the grinding chamber 5. A first scraper 702 is rotatably mounted on the end of the base 701 near the axis of the grinding chamber 5. Multiple springs 703 are fixedly mounted on the side of the first scraper 702 near its rotation point. The springs 703 are evenly distributed along the axis of the grinding chamber 5. A connecting plate 704 is fixedly mounted on the ends of the multiple springs 703 away from the first scraper 702. The connecting plate 704 is fixedly connected to the base 701. Limit pins 26 are fixedly mounted on both the front and rear walls of the first scraper 702. A limit block 27 is fixedly mounted on the base 701, which movably abuts against the limit pin 26. The limit block 27 is located above and on the same side as the corresponding connecting plate 704. The limiting pin 26 on the first scraper plate 702 is rotated to a certain angle and abuts against the limiting block 27 to limit the first scraper plate 702 .

[0037] In order to improve the grinding effect of the grinding steel balls 3 on the raw materials, the cylinder 2 can drive the base 701 and the first scraper 702 to rotate when it rotates. When the first scraper 702 rotates to the lower end, it will lift the raw materials accumulated inside the lower end of the cylinder 2 together with all the grinding steel balls 3 in the grinding space, and rotate with the cylinder 2. Moreover, since a discharge port 7011 is provided at the lower end of the base 701, a part of the raw materials will still remain at the lower end of the cylinder 2. When the first scraper 702 is lifted to a certain height, the first scraper 702 will tilt, so that the grinding steel balls 3 on the first scraper 702 are thrown down from the inside of the upper end of the cylinder 2 and hit part of the raw materials inside the lower end of the cylinder 2. Since the raw materials inside the lower end of the cylinder 2 are reduced at this time, the grinding steel balls 3 can better cooperate with the liner 4 when hitting the raw materials, thereby achieving a better grinding and extrusion effect on the raw materials.

[0038] See Figure 2 、 Figure 5 、 Figure 6 、 Figure 8 、 Figure 11 A trumpet-shaped screen frame 30 is fixedly provided at the rear end of the grinding chamber 5 and on the left side of the discharge port 18. A plurality of screen holes 31 are provided on the annular wall of the screen frame 30. A connecting rod 9 is fixedly connected between multiple first scraper plates 702 corresponding to the same material guiding mechanism 7. Two arc-shaped first movable holes 24 are provided on the surface of the isolation plate 6. The center of the first movable hole 24 is coaxial with the rotation connection point of the first scraper plate 702 itself, and the connecting rod 9 is movably provided in the corresponding first movable hole 24. The rear end of the connecting rod 9 is movably connected to a swing rod 10 with an L-shaped structure. The swing rod 10 is composed of an impact section and a rotating shaft section perpendicular to the impact section and fixedly connected. A second movable hole 28 is provided on the surface of the impact section of the swing rod 10. The end of the connecting rod 9 close to the screen frame 30 movably passes through the second movable hole 28 and is fixedly connected to the limiting plate 29. The end of the impact section of the swing rod 10 close to the inner wall of the screen frame 30 is movably abutted against the inner wall of the screen frame 30. The end of the rotating shaft section of the swing rod 10 away from the connecting rod 9 is rotationally connected to the screen frame 30 through a torsion spring 11.

[0039] In order to prevent the screen frame 30 from being blocked, the screen frame 30 is set to a conical structure. When the lower end of the screen frame 30 contacts the raw material for screening, the screened surface will rotate with the cylinder 2. After rotating to a certain height, Figure 11As shown, the sieve holes 31 on the surface of the sieve frame 30 are in an inclined state, and the raw materials inside the sieve holes 31 can more easily flow out of the sieve holes 31, which can reduce the risk of blockage. At the same time, when the first scraper 702 rotates to scrape the grinding steel balls and raw materials inside the lower end of the cylinder 2, the first scraper 702 will rotate relative to the base 701 under the influence of gravity, so that the first scraper 702 can drive the connecting rod 9 to rotate. At this time, the spring 703 is compressed, and the rotation of the connecting rod 9 will drive the swing rod 10 to rotate. One end of the rotating shaft section of the swing rod 10 is connected to the screen frame 30 through the torsion spring 11, so that the torsion spring 11 rotates to store energy for the swing rod 10. When the first scraper 702 rotates to a high position and throws out the grinding steel balls 3 and raw materials on its surface, the first scraper 702 will lose pressure, and the first scraper 702 will reverse under the action of the spring 703. At the same time, the swing rod 10 rotates rapidly under the action of the torsion spring 11, and one end of the impact section of the swing rod 10 will hit the inner wall of the screen frame 30, causing the inner wall of the screen frame 30 to vibrate, thereby promoting the movement of materials in the screen frame 30, further reducing the risk of blockage of the screen frame 30 on the surface of the screen frame 30.

[0040] See Figure 2 、 Figure 8 、 Figure 9 and Figure 10 A return mechanism 8 is provided between the screen frame 30 and the adjacent isolation plate 6. The return mechanism 8 includes a return pipe 801, the front end of which is fixedly provided on the adjacent isolation plate 6, and the rear end of which is fixedly provided on the screen frame 30. A return channel 802 is provided inside the return pipe 801, a second scraper plate 803 is provided on the inner wall of the screen frame 30, and a feed port 804 is provided on the return channel 802 opposite the second scraper plate 803. A baffle 805 with an arc-shaped structure is fixedly provided inside the feed port 804. The baffle 805 can prevent the raw material from falling from the feed port 804 to the vicinity of the screen frame 30 below as much as possible when the feed port 804 rotates downward. The return channel 802 is provided as a truncated cone-shaped channel with a diameter gradually decreasing from front to back.

[0041] The raw material moves toward the inner wall of the screen frame 30, and the qualified ground raw material is discharged through the screen holes 31 on the surface of the screen frame 30. At the same time, the screen frame 30 always rotates with the cylinder 2. When the second scraper plate 803 on the inner wall of the screen frame 30 rotates to the lower end, it will scrape up the raw material accumulated at the lower end, and after it is lifted to a certain height, the second scraper plate 803 tilts, and the raw material will slide downward along the second scraper plate 803. Since the second scraper plate 803 is aligned with the injection port 804 on the return pipe 801, most of the raw material will enter the return pipe 801, and the return channel 802 inside the return pipe 801 is frustum-shaped, which helps the raw material in the return channel 802 to move toward the isolation plate 6 during the continuous rotation of the return pipe 801, and finally falls into the nearest grinding space for secondary grinding. This cycle transfers the insufficiently ground raw materials near the screen frame 30 to the nearest grinding space for secondary grinding, which can effectively avoid the impact of this part of the insufficiently ground raw materials on the screen frame 30, thereby reducing the maintenance frequency of the screen frame 30, further improving the overall grinding processing efficiency, and at the same time avoiding the insufficiently ground raw materials being trapped on the inner wall of the screen frame 30 and causing blockage of the screen frame 30.

[0042] During specific operation, the raw material is fed into the cylinder 2 through the feed pipe 13, and the rotation of the cylinder 2 drives the material guiding mechanism 7 to rotate. The material guiding mechanism 7 can lift part of the raw material and all the grinding steel balls 3 inside the lower end of the cylinder 2 to a certain height and then throw them down. The grinding steel balls 3 can better cooperate with the lining plate 4 to grind and extrude the raw material, and as the cylinder 2 continues to rotate, the raw material gradually moves toward the screen frame 30 and moves to the discharge port 18 through the screen frame 30 for discharge. In this process, the material guiding mechanism 7 can drive the swing rod 10 to rotate through the connecting rod 9, so that the swing rod 10 can cyclically hit the screen frame 30, promote the flow of raw material in the screen frame 30 on the surface of the screen frame 30, and at the same time reduce the risk of blockage. At the same time, the second scraper plate 803 on the inner wall of the screen frame 30 can transfer the raw material that is not fully ground near the screen frame 30 to the nearest grinding space for secondary grinding, which can effectively avoid the influence of this part of the insufficiently ground raw material on the screen frame 30.

[0043] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A grinding machine for processing lepidolite, comprising a base, characterized in that: A cylinder is rotatably provided on the upper part of the base, a plurality of grinding steel balls are provided inside the cylinder, a plurality of lining plates are laid inside the cylinder, the lining plates are fixed to the cylinder by bolts, and the plurality of lining plates form a grinding chamber inside the cylinder, a plurality of isolation plates distributed along the length direction of the cylinder are fixedly provided in the grinding chamber, a material guide mechanism symmetrically arranged along the radial direction of the grinding chamber is provided on the inner wall of the grinding chamber, a trumpet-shaped screen frame is fixedly provided inside the rear end of the grinding chamber, a plurality of sieve holes are opened on the annular wall of the screen frame, and a material return mechanism is provided between the screen frame and the adjacent isolation plates; The material guiding mechanism includes a plurality of bases fixedly arranged on the inner wall of the grinding chamber, the plurality of bases and the plurality of isolation plates are staggeredly distributed in the grinding chamber, a discharge port is opened at one end of the base away from the axis of the grinding chamber, a first scraper is rotatably arranged at one end of the base close to the axis of the grinding chamber, a plurality of springs are fixedly arranged on the side surface of one end of the first scraper close to its rotation point, and a connecting plate is fixedly arranged on one end of the plurality of springs away from the first scraper, and the connecting plate is fixedly connected to the base; A connecting rod is fixedly connected between multiple first scraper plates corresponding to the same material guiding mechanism. The rear end of the connecting rod is movably connected to a swing rod with an L-shaped structure. The end of the swing rod close to the connecting rod is movably abutted against the screen frame, and the end of the swing rod away from the connecting rod is rotationally connected to the screen frame through a torsion spring.

2. A grinding machine for processing lepidolite according to claim 1, characterized in that: A first support seat is fixedly provided on the upper part of the front and rear ends of the base, and the front and rear ends of the cylinder are rotatably connected to the adjacent first support seats. The front end of the cylinder is fixedly connected to a feed pipe connected to the interior of the cylinder, and a spiral guide plate is fixedly provided on the inner wall of the feed pipe.

3. A grinding machine for processing lepidolite according to claim 2, characterized in that, A second support seat is fixedly provided on the upper part of the base and below the middle part of the cylinder. Guide wheels are rotatably provided at both the front and rear ends of the upper part of the second support seat. A connecting ring is fixedly provided in the middle part of the outer wall of the cylinder. The outer wall of the connecting ring is in rolling contact with the guide wheel.

4. A grinding machine for processing lepidolite according to claim 1, characterized in that: A discharge port is provided on the rear end inner wall of the grinding chamber, and a material receiving seat is fixedly provided on the upper part of the base and below the discharge port. A material receiving trough is provided on the material receiving seat, and the material receiving trough is composed of an arc trough and a slope trough. A material stripping plate is movably provided in the material receiving trough, and the material stripping plate is fixedly connected to the outer wall of the cylinder. The screen frame is located on the left side of the discharge port.

5. A grinding machine for processing lepidolite according to claim 1, characterized in that, A gear ring is fixedly provided on the rear end outer wall of the cylinder, and a transmission gear is meshed on the gear ring. The transmission gear is connected to a drive motor fixedly provided on the left side wall of the base through a connecting shaft.

6. A grinding machine for processing lepidolite according to claim 1, characterized in that: Two arc-shaped first movable holes are opened on the surface of the isolation plate, and the connecting rod is movably set in the corresponding first movable holes. The grinding chamber is set to a cylindrical structure, and the isolation plate is set to a circular shape. The diameter of the isolation plate is smaller than the diameter of the grinding chamber. A conveying channel for raw materials to pass through is formed between the outer wall of the isolation plate and the inner wall of the grinding chamber.

7. A grinding machine for processing lepidolite according to claim 1, characterized in that: Limit pins are fixedly provided on the front and rear side walls of the first scraper plate, and a limit block movably abutting against the limit pin is fixedly provided on the base. The limit block is located above and on the same side as the corresponding connecting plate.

8. A grinding machine for processing lepidolite according to claim 1, characterized in that: The swing rod is composed of an impact section and a rotating shaft section fixedly connected to the impact section. A second movable hole is opened on the surface of the impact section of the swing rod. The end of the connecting rod close to the screen frame is movable through the second movable hole and fixedly connected to the limiting plate.

9. A grinding machine for processing lepidolite according to claim 1, characterized in that: The return material mechanism includes a return material pipe, the front end of the return material pipe is fixedly arranged on the adjacent isolation plate, the rear end of the return material pipe is fixedly arranged on the screen frame, a return material channel is arranged inside the return material pipe, a second scraper plate is arranged on the inner wall of the screen frame, and an injection port is opened on the return material channel at a position opposite to the second scraper plate.

10. A grinding machine for processing lepidolite according to claim 9, characterized in that: A baffle with an arc-shaped structure is fixedly arranged in the injection port, and the return channel is configured as a truncated cone-shaped channel with a diameter gradually decreasing from the front to the back.

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