Classification desliming machine for low-grade lithium-containing minerals

Abstract

The utility model discloses a low-grade lithium-containing mineral classification desliming machine which comprises a supporting frame, a classification desliming assembly is installed on the inner wall of the supporting frame, a conveying assembly is installed on the right side wall of the supporting frame, and a feeding assembly is installed on the left side wall of the supporting frame. According to the grading desliming machine for the low-grade lithium-containing minerals, the driving motor drives the transmission rollers, the transmission seats and the first toothed belt wheels to rotate, the multiple transmission rollers and the transmission seats are driven to rotate, the vibration motor drives the screening plate to vibrate, and soil on the screening plate is vibrated to be scattered and falls onto the ground below the screening plate; and when the screening plates move, telescopic rods and springs can be driven to move up and down in the inner walls of the corresponding mounting frames, so that ore mixtures can be screened in a classified mode, large ore blocks, small ore blocks and soil are separated, continuous desliming and screening work is achieved, and the recovery rate of lepidolite and the overall ore classification efficiency can be improved to a greater extent.

Description

Technical Field

[0001] The utility model relates to the technical field of mineral processing, in particular to a classification desludging machine for low-grade lithium-containing minerals. Background Art

[0002] With the rapid growth of new energy electric vehicles, the demand for lithium continues to increase. Lithium extraction from spodumene can no longer meet market demand. Therefore, lithium extraction from lepidolite and its lithium-containing minerals will be widely used, and the comprehensive utilization of the lithium element in lepidolite is crucial. Lithium minerals mainly include lepidolite and spodumene. They are widely present in nature, but their grade is low and they are difficult to process. Low-grade lithium-containing minerals are mainly used to extract lithium, such as lithium carbonate and lithium hydroxide. These lithium substances are important raw materials for industries such as batteries, ceramics, and glass. After being mined, lithium-containing minerals are mixed with mud and need to be desludged during subsequent mineral processing before subsequent ore processing.

[0003] Because the raw ore contains a large amount of primary and secondary ultrafine mud, direct flotation results in large fluctuations in product indicators and difficulty in controlling the liquid level. Therefore, desludging is performed before flotation to control the mud content of the flotation feed below 18%. Desludging also causes the loss of ultrafine lepidolite, resulting in a loss of lepidolite recovery rate. The large-scale development of the lepidolite beneficiation industry has affected the recovery rate of lepidolite concentrate. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a low-grade lithium-containing mineral classification desludging machine to solve the above problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a low-grade lithium-containing mineral classification desludging machine, comprising a support frame, a classification desludging assembly is installed on the inner wall of the support frame, a conveying assembly is installed on the right wall of the support frame, and a feeding assembly is installed on the left wall of the support frame;

[0006] The grading desliming assembly includes a driving motor, the left side of the rear wall of the support frame is fixedly connected to the driving motor, the inner wall of the support frame is evenly rotated with several groups of transmission rollers, the outer wall of each group of transmission rollers is evenly installed with several transmission seats, the front end of the roller shaft of each group of transmission rollers passes through the support frame through a bearing and is fixedly installed with a toothed belt pulley, the outer walls of the two toothed belt pulleys of the same group are both driven and installed with the same toothed belt, the rear ends of the roller shafts of the two adjacent transmission rollers are both passed through the support frame and are fixedly installed with a toothed belt, the outer walls of the two adjacent toothed belt pulleys are both driven and installed with the same toothed belt, the four corners of the inner bottom wall of the support frame are fixedly installed with mounting frames, several inner walls of the mounting frames are installed with telescopic rods, several outer walls of the telescopic rods are installed with springs, the tops of several telescopic rods are fixedly installed with the same screening plate, and the left and right sides of the bottom wall of the screening plate are fixedly installed with vibration motors.

[0007] Through the above technical solution, the graded desliming component can fully deslim and classify the ore mixture, which is beneficial to subsequently improve the recovery rate of lepidolite.

[0008] Furthermore, the power shaft of the driving motor passes through the support frame through a bearing and is fixedly connected to the corresponding transmission roller shaft. The spacing distribution between several transmission rollers is the same. The height of the telescopic rod on the left is greater than the height of the telescopic rod on the right. The screening plate is in an inclined state with the left side higher and the right side lower. The height of the transmission seat on the far right matches the conveying assembly. Protective frames are fixedly installed on the front and rear walls of the support frame and at the positions corresponding to the toothed pulley one and the toothed pulley two.

[0009] Through the above technical solution, the driving motor works by connecting to an external power supply and a controller, and the screening plate can classify and screen small ores and soil.

[0010] Furthermore, the feeding assembly includes a support seat, a feeding rack is installed on the top wall of the support seat, a feeding hopper is installed on the top wall of the feeding rack, two guide plates are installed on the feeding rack, the two guide plates are symmetrically arranged on the left and right, and the two guide plates are staggered and inclined, a discharge plate is installed on the bottom wall of the support seat, the right side wall of the discharge plate is fixedly connected to the left side wall of the support frame, and the bottom of the discharge plate is tilted to the right to match the height of the transmission seat located on the far left.

[0011] Through the above technical solution, the main function of the feeding assembly is to slow down the feeding, and the setting of the guide plate can reduce the impact of the ore.

[0012] Furthermore, the conveying assembly includes a conveying frame, which is fixedly mounted on the right side wall of the support frame. A material receiving seat is mounted on the left wall of the conveying frame. The material receiving seat is triangular and has a height lower than the rightmost transmission seat.

[0013] Through the above technical solution, the receiving seat is mainly used to receive large pieces of ore.

[0014] Furthermore, a discharge port is provided on the left side wall of the conveying frame, the height of the discharge port is lower than the screening plate and the position matches the screening plate, and rotating rollers are rotatably installed on the front and rear parts of the inner wall of the conveying frame, and the outer walls of the two rotating rollers are both driven and installed with the same conveyor belt, and the right end of the roller shaft of the rotating roller located at the front passes through the conveying frame through a bearing and is fixed with a transmission gear.

[0015] Through the above technical solution, large pieces of ore can be transported under the cooperation of the rotating roller 1 and the conveyor belt 1.

[0016] Furthermore, rotating roller 2 is rotatably installed on the front and rear parts of the inner wall of the conveying frame and located under the rotating roller. The outer walls of the two rotating rollers are both transmission-installed with the same conveyor belt 2. The right end of the roller shaft of the rotating roller 2 located at the front passes through the conveying frame through a bearing and is fixedly installed with a transmission gear 2. The transmission gear 2 is meshed with the transmission gear 1. A servo motor is fixedly installed on the rear part of the right side wall of the conveying frame. The power shaft of the servo motor passes through the conveying frame through a bearing and is fixedly connected to the roller shaft of the corresponding rotating roller 1.

[0017] Through the above technical solution, small pieces of ore can be transported under the cooperation of the second conveyor belt and the second rotating roller.

[0018] Furthermore, discharge outlets are provided on the front and rear walls of the conveyor frame corresponding to the positions of conveyor belt 1 and conveyor belt 2, and discharge plates are fixedly installed on the outer walls of the two discharge outlets. A protective cover is installed on the right side wall of the conveyor frame corresponding to the positions of transmission gear 1 and transmission gear 2.

[0019] Through the above technical solution, the conveying directions of conveyor belt 1 and conveyor belt 2 are opposite, and large ores and small ores are transported to different processing locations.

[0020] Furthermore, a top frame is fixedly mounted on the bottom wall of the support frame.

[0021] Through the above technical solution, the top frame has the function of supporting and fixing the entire device.

[0022] Beneficial effects

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The low-grade lithium-containing mineral grading and desludging machine drives the transmission roller, transmission seat and toothed belt pulley 1 to rotate through the driving motor. Through the cooperation of toothed belt pulley 1, toothed belt 1, toothed belt pulley 2 and toothed belt 2, multiple transmission rollers and transmission seats are driven to rotate. The mixture of ore and soil blocks is put into the feed hopper, falls on the discharge plate through the guide plate, feed rack and guide plate, and slides onto the transmission seat. When the transmission seat rotates, the large pieces of ore will be gradually transported to the right, and the small pieces of ore and soil will be transported to the right through the transmission seat. The gap between the seat and the transmission roller falls down onto the screening plate, and the vibration motor drives the screening plate to vibrate. The soil on the screening plate is shaken and falls to the ground below the screening plate. When the screening plate moves, it will drive the telescopic rod and the spring to move up and down in the inner wall of the corresponding mounting frame, so that the ore mixture can be graded and screened, and large pieces of ore, small pieces of ore and soil can be separated. Continuous desludging and screening work can greatly improve the recovery rate of lepidolite and the overall ore classification efficiency.

[0025] (2) The low-grade lithium-containing mineral grading and desludging machine drives the rotating roller 1, the conveyor belt 1 and the transmission gear 1 to rotate through the servo motor. The transmission gear 1 drives the transmission gear 2, the rotating roller 2 and the conveyor belt 2 to rotate. The small pieces of ore pass through the discharge port to the conveyor belt 2 inside the conveyor frame and are transported out through the corresponding discharge port and the discharge plate. The large pieces of ore are received and placed on the conveyor belt 1 and are transported out through the corresponding discharge port and the discharge plate. After the large pieces of ore, the small pieces of ore and the soil are separated, the large pieces of ore and the small pieces of ore can be quickly transported out in different directions, which is conducive to the classification and use of ores of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front schematic diagram of the utility model;

[0027] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0028] Figure 3 It is a rear schematic diagram of the utility model;

[0029] Figure 4 This is an exploded view of the internal structure of the graded desludging assembly of the utility model;

[0030] Figure 5 This is a bottom view of the external structure of the graded desludging assembly of the utility model;

[0031] Figure 6 It is an exploded view of the internal structure of the conveying component of the present utility model.

[0032] Explanation of the markings in the figure: 1. Support frame; 2. Feed assembly; 21. Discharge plate; 22. Support seat; 23. Feed frame; 24. Guide plate; 25. Feed hopper; 3. Grading and desludging assembly; 31. Drive motor; 32. Drive roller; 33. Drive seat; 34. Toothed pulley 1; 35. Toothed belt 1; 36. Toothed pulley 2; 37. Toothed belt 2; 38. Mounting frame; 39. Telescopic rod; 310. Spring ; 311. Screening plate; 312. Vibrating motor; 313. Protective frame; 4. Conveying assembly; 41. Conveying frame; 42. Discharge port; 43. Material receiving seat; 44. Discharge port; 45. Rotating roller 2; 46. Conveyor belt 2; 47. Rotating roller 1; 48. Servo motor; 49. Conveyor belt 1; 410. Discharge plate; 411. Transmission gear 1; 412. Transmission gear 2; 413. Protective cover; 5. Top frame. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example 1

[0035] See also Figure 1-6 The low-grade lithium-containing mineral graded desludging machine of the present invention comprises a support frame 1, a graded desludging assembly 3 is installed on the inner wall of the support frame 1, a conveying assembly 4 is installed on the right side wall of the support frame 1, and a feeding assembly 2 is installed on the left side wall of the support frame 1;

[0036] The graded desludging assembly 3 includes a drive motor 31, and the left side of the rear wall of the support frame 1 is fixedly connected to the drive motor 31. The inner wall of the support frame 1 is evenly rotated and installed with several groups of transmission rollers 32. The outer wall of each group of transmission rollers 32 is evenly installed with several transmission seats 33. The front end of the roller shaft of each group of transmission rollers 32 passes through the support frame 1 through a bearing and is fixedly installed with a toothed pulley 34. The outer walls of the two toothed pulleys 34 in the same group are both driven and installed with the same toothed belt 35. The rear ends of the roller shafts of the two adjacent transmission rollers 32 are both fixedly installed with a toothed pulley 2 36 through a bearing passing through the support frame 1. The outer walls of the two adjacent toothed pulleys 2 36 are both driven and installed with the same toothed belt 2 37. The four corners of the inner bottom wall of the support frame 1 are fixedly installed with mounting brackets 38, and several mounting brackets The inner wall of 38 is installed with a telescopic rod 39, and the outer walls of several telescopic rods 39 are installed with springs 310. The tops of several telescopic rods 39 are fixedly installed with the same screening plate 311. The left and right sides of the bottom wall of the screening plate 311 are fixedly installed with vibration motors 312. The power shaft of the drive motor 31 passes through the support frame 1 through a bearing and is fixedly connected to the roller shaft of the corresponding transmission roller 32. The spacing distribution between the several transmission rollers 32 is the same. The height of the telescopic rod 39 on the left is greater than that of the telescopic rod 39 on the right. The screening plate 311 is in an inclined state with the left higher and the right lower. The height of the transmission seat 33 on the far right matches that of the conveying assembly 4. Protective frames 313 are fixedly installed on the front and rear walls of the support frame 1 and at the positions corresponding to the toothed belt pulley 1 34 and the toothed belt pulley 2 36;

[0037] In the embodiment of the present utility model, the purpose of this setting is that the setting of the graded desludging component 3 can perform graded desludging on the ore mixture, and the large pieces of ore, small pieces of ore and soil mixed in the ore mixture can be screened out, which is convenient for subsequent use for different purposes and can avoid the soil affecting the recovery rate of lithium mica. At the same time, the graded desludging component 3 can work continuously, which can improve the ore extraction efficiency of the entire device and further improve the recovery rate of lithium mica.

[0038] Example 2

[0039] See also Figure 1-6, this embodiment provides a technical solution based on the first embodiment: the feeding assembly 2 includes a support seat 22, a feeding rack 23 is installed on the top wall of the support seat 22, a feeding hopper 25 is installed on the top wall of the feeding rack 23, and two guide plates 24 are installed on the feeding rack 23. The two guide plates 24 are arranged symmetrically on the left and right, and the two guide plates 24 are arranged in a staggered and inclined manner. A discharge plate 21 is installed on the bottom wall of the support seat 22, and the right side wall of the discharge plate 21 is fixedly connected to the left side wall of the support frame 1, and the bottom of the discharge plate 21 is tilted to the right and is located on the leftmost side. The transmission seat 33 is matched in height, and the conveying assembly 4 includes a conveying frame 41, which is fixedly mounted on the right side wall of the support frame 1. A material receiving seat 43 is mounted on the left wall of the conveying frame 41. The material receiving seat 43 is triangular and slightly lower in height than the transmission seat 33 on the far right. A discharge port 42 is provided on the left wall of the conveying frame 41. The discharge port 42 is lower in height than the screening plate 311 and the position matches. A rotating roller 47 is rotatably mounted on the front and rear parts of the inner wall of the conveying frame 41. The outer walls of the two rotating rollers 47 are both driven and mounted with the same conveyor belt 4 9. The right end of the roller shaft of the rotating roller 1 47 at the front passes through the conveying frame 41 through a bearing and is fixedly installed with a transmission gear 1 411. The front and rear parts of the inner wall of the conveying frame 41 and the lower part of the rotating roller 1 47 are both rotatably installed with rotating rollers 2 45. The outer walls of the two rotating rollers 2 45 are both driven and installed with the same conveyor belt 2 46. The right end of the roller shaft of the rotating roller 2 45 at the front passes through the conveying frame 41 through a bearing and is fixedly installed with a transmission gear 2 412. The transmission gear 2 412 is meshed with the transmission gear 1 411, and the conveying frame 41 A servo motor 48 is fixedly installed at the rear of the right side wall. The power shaft of the servo motor 48 passes through the conveying frame 41 and is fixedly connected to the corresponding roller shaft of the rotating roller 1 47 through a bearing. Discharge ports 44 are opened on the front and rear walls of the conveying frame 41 at the positions corresponding to the conveyor belt 1 49 and the conveyor belt 2 46. Discharge plates 410 are fixedly installed on the outer walls of the two discharge ports 44. A protective cover 413 is installed on the right side wall of the conveying frame 41 at the positions corresponding to the transmission gear 1 411 and the transmission gear 2 412. The top frame 5 is fixedly installed on the bottom wall of the support frame 1.

[0040] In the embodiment of the present utility model, the purpose of this setting is that the setting of the feeding component 2 is mainly to slow down the falling ore mixture and reduce its impact force under the action of the guide plate 24 during feeding, and the setting of the feeding component 2 can transport large pieces of ore and small pieces of ore in a graded manner to avoid mixed accumulation of the two. They can be classified and placed according to different usage needs. The entire device has good work efficiency and practicality in the desliming processing of the ore mixture through the mutual cooperation of various components, which helps to improve the recovery rate of lithium mica.

[0041] When the utility model is working, firstly, the drive motor 31, the vibration motor 312 and the servo motor 48 are connected through the external power supply and the controller. When the low-grade lithium-containing ore is graded and deslimed, the drive motor 31 is started to drive the transmission roller 32 to rotate. When the transmission roller 32 rotates, it drives the transmission seat 33 and the toothed belt pulley 1 34 to rotate, and through the mutual cooperation between the toothed belt pulley 1 34 and the toothed belt 1 35 and the mutual cooperation between the toothed belt pulley 2 36 and the toothed belt 2 37, multiple transmission rollers 32 and the transmission seat 33 are driven to rotate at the same time. Then the servo motor 48 is started to drive the rotating roller 1 47 to rotate, and the conveyor belt 1 49 drives the conveyor belt 1 located in the front. The rotating roller 1 47 and the transmission gear 1 411 rotate. When the transmission gear 1 411 rotates, it drives the transmission gear 2 412 meshing with it to rotate. When the transmission gear 2 412 rotates, it drives the rotating roller 2 45 at the front to rotate. When the rotating roller 2 45 at the front rotates, it drives the rotating roller 2 45 at the rear to rotate through the transmission of the conveyor belt 2 46. Finally, the conveyor belt 1 49 and the conveyor belt 2 46 start to drive at the same speed, but in opposite directions, and the mixture of ore and soil blocks is put into the feed hopper 25. Then, the ore is guided by the guide plate 24 and falls through the feed rack 23 and the guide plate 24. On the discharge plate 21, the mixture of ore and soil blocks then slides from the discharge plate 21 to the transmission seat 33. The transmission seat 33 will gradually transport large pieces of ore to the right when it rotates. The mixture of ore and soil blocks is transported from left to right for a certain distance. The soil on the ore collides with each other and is shaken off during the transportation process. Small pieces of ore and soil fall down to the screening plate 311 through the gap between the transmission seat 33 and the transmission roller 32. The vibration motor 312 is then started to drive the screening plate 311 to vibrate, and the soil on the screening plate 311 is shaken and falls to the ground below the screening plate 311. The screening plate 311 is in motion. At this time, the telescopic rod 39 and the spring 310 will be driven to move up and down in the inner wall of the corresponding mounting frame 38, and the small pieces of ore will slide to the right through the discharge port 42 and enter the conveyor belt 2 46 inside the conveyor frame 41, and then the small pieces of ore on the screening plate 311 will be conveyed out by the conveyor belt 2 46 through the corresponding discharge port 44 and the discharge plate 410. The large pieces of ore conveyed on the transmission seat 33 will fall onto the conveyor belt 1 49 through the receiving seat 43 and be conveyed out through the corresponding discharge port 44 and the discharge plate 410, so that the entire device can classify the mixture of ore and soil blocks, and classify and transport the large pieces of ore, small pieces of ore and soil impurities.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-grade lithium-containing mineral classification desludging machine, comprising a support frame (1), characterized in that: A graded desludging assembly (3) is installed on the inner wall of the support frame (1), a conveying assembly (4) is installed on the right side wall of the support frame (1), and a feeding assembly (2) is installed on the left side wall of the support frame (1); The classification desludging assembly (3) includes a driving motor (31), the left side of the rear wall of the support frame (1) is fixedly connected to the driving motor (31), the inner wall of the support frame (1) is uniformly rotatably mounted with a plurality of groups of transmission rollers (32), the outer wall of each group of the transmission rollers (32) is uniformly mounted with a plurality of transmission seats (33), the front end of the roller shaft of each group of the transmission rollers (32) is fixedly mounted with a toothed belt wheel (34) through a bearing penetrating the support frame (1), the outer walls of the two toothed belt wheels (34) in the same group are both driven and mounted with the same toothed belt (35), and the rear ends of the roller shafts of the two adjacent transmission rollers (32) are both connected through a bearing. A toothed pulley (36) is fixedly installed on the support frame (1) through the bearing, and the outer walls of two adjacent toothed pulleys (36) are both driven by the same toothed belt (37). The four corners of the inner bottom wall of the support frame (1) are fixedly installed with mounting frames (38), the inner walls of several mounting frames (38) are each installed with a telescopic rod (39), the outer walls of several telescopic rods (39) are each installed with a spring (310), the tops of several telescopic rods (39) are each fixedly installed with the same screening plate (311), and the left and right sides of the bottom wall of the screening plate (311) are both fixedly installed with a vibration motor (312).

2. The low-grade lithium-containing mineral classification desludging machine according to claim 1, characterized in that: The power shaft of the driving motor (31) passes through the support frame (1) and is fixedly connected to the corresponding transmission roller (32) through a bearing. The spacing distribution between the plurality of transmission rollers (32) is the same. The height of the telescopic rod (39) on the left is greater than that of the telescopic rod (39) on the right. The screening plate (311) is in an inclined state with the left side higher and the right side lower. The height of the transmission seat (33) on the far right matches that of the conveying assembly (4). Protective frames (313) are fixedly installed on the front and rear walls of the support frame (1) and at the positions corresponding to the toothed belt pulley 1 (34) and the toothed belt pulley 2 (36).

3. The low-grade lithium-containing mineral classification desludging machine according to claim 1, characterized in that: The feeding assembly (2) includes a support base (22), a feeding rack (23) is installed on the top wall of the support base (22), a feeding hopper (25) is installed on the top wall of the feeding rack (23), two guide plates (24) are installed on the feeding rack (23), the two guide plates (24) are arranged symmetrically on the left and right, and the two guide plates (24) are arranged in a staggered and inclined manner, a discharge plate (21) is installed on the bottom wall of the support base (22), the right side wall of the discharge plate (21) is fixedly connected to the left side wall of the support base (1), and the bottom of the discharge plate (21) is tilted to the right to match the height of the transmission base (33) located on the leftmost side.

4. The low-grade lithium-containing mineral classification desludging machine according to claim 1, characterized in that: The conveying assembly (4) comprises a conveying frame (41), the conveying frame (41) being fixedly mounted on the right side wall of the support frame (1), and a material receiving seat (43) being mounted on the left side wall of the conveying frame (41), the material receiving seat (43) being triangular and having a height lower than the rightmost transmission seat (33).

5. The low-grade lithium-containing mineral classification desludging machine according to claim 4, characterized in that: A discharge port (42) is provided on the left side wall of the conveying frame (41). The height of the discharge port (42) is lower than that of the screening plate (311) and the position thereof matches. A rotating roller (47) is rotatably mounted on the front and rear portions of the inner wall of the conveying frame (41). The outer walls of the two rotating rollers (47) are both drive-mounted with the same conveyor belt (49). The right end of the roller shaft of the rotating roller (47) at the front passes through the conveying frame (41) through a bearing and is fixedly mounted with a transmission gear (411).

6. The low-grade lithium-containing mineral classification desludging machine according to claim 5, characterized in that: The front and rear parts of the inner wall of the conveying frame (41) and the lower part of the rotating roller 1 (47) are both rotatably installed with the rotating roller 2 (45), and the outer walls of the two rotating rollers 2 (45) are both transmission-installed with the same conveyor belt 2 (46). The right end of the roller shaft of the rotating roller 2 (45) located at the front passes through the conveying frame (41) through a bearing and is fixedly installed with a transmission gear 2 (412). The transmission gear 2 (412) is meshed with the transmission gear 1 (411). A servo motor (48) is fixedly installed at the rear part of the right side wall of the conveying frame (41), and the power shaft of the servo motor (48) passes through the conveying frame (41) through a bearing and is fixedly connected to the roller shaft of the corresponding rotating roller 1 (47).

7. The low-grade lithium-containing mineral classification and desludging machine according to claim 5, characterized in that: Discharge outlets (44) are provided on the front and rear walls of the conveyor frame (41) at positions corresponding to conveyor belt 1 (49) and conveyor belt 2 (46), and discharge plates (410) are fixedly installed on the outer walls of the two discharge outlets (44). A protective cover (413) is installed on the right side wall of the conveyor frame (41) at positions corresponding to transmission gear 1 (411) and transmission gear 2 (412).

8. The low-grade lithium-containing mineral classification and desludging machine according to claim 1, characterized in that: A top frame (5) is fixedly mounted on the bottom wall of the support frame (1).

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