Feeding device for a lithium ore mill

Abstract

The application discloses a feeding device of a lithium ore mill, and relates to the technical field of feeding devices, which comprises a machine body and a conveying assembly, the conveying assembly is arranged in the machine body, a feeding hopper is arranged on one side of the machine body, the conveying assembly comprises a feeding rod, the feeding rod is arranged in the machine body, an air inlet is arranged on one side of the feeding rod, and paddles are arranged on one side of the feeding rod. When the application is used, the material can be doubly dewatered during the conveying process, the material can be pre-crushed during the second dewatering, dust removal is simultaneously performed, dust diffusion is avoided, the air inlet amount can be automatically adjusted according to the feeding speed during the conveying process, the cleaning speed of the filter screen is synchronously controlled, the filter screen is prevented from being blocked, the material can be screened once before entering the ore mill, ferromagnetic substances in the material are removed, oversized material is backflowed, the oversized material is crushed again, and the oversized material is prevented from being inconveniently processed in the ore mill.

Description

Technical Field

[0001] This invention relates to the field of feeding device technology, specifically to a feeding device for a lithium ore mill. Background Technology

[0002] A mining mill is a mechanical device used for crushing, grinding, and processing ores, minerals, slag, and other mining raw materials. Mining mills play a crucial role in the mining industry by extracting useful minerals or metals from raw ores, which are typically used to manufacture metals, building materials, chemical products, and for other industrial applications.

[0003] When using a ore mill to process lithium ore, a feeding device is needed to feed the ore into the mill. However, during the transportation and processing of lithium ore, the material may clump together and cause blockages in the pipes or devices due to excessive moisture content. Summary of the Invention

[0004] The purpose of this invention is to provide a feeding device for a lithium ore mill to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a feeding device for a lithium ore mill, comprising a body and a conveying assembly, wherein the conveying assembly is disposed within the body, and a feed hopper is disposed on one side of the body; the conveying assembly includes a feeding rod, which is disposed within the body, and an air inlet is disposed on one side of the feeding rod; a blade is disposed on one side of the feeding rod, and a crushing rod is connected to the surface of the blade on one side of the feeding rod; a flow groove is disposed inside the side of the blade connected to the crushing rod; a water outlet groove is disposed on the bottom side of the body, and a filter screen is disposed in the water outlet groove; a transmission cavity is disposed at one end of the body, and a cam plate is rotatably connected within the transmission cavity; a motor is connected to one side of the cam plate.

[0006] Furthermore, the blade connected to the crushing rod on one side is in an equidistant spiral shape, and the blade on the other side is in a variable pitch spiral shape. The cam plate is connected to the feeding rod through a magnetic coupling. The air intake is connected to the crushing rod through a flow channel. The motor is connected to the ore mill through a sensor and a controller, so that the operating power of the motor matches the operating power of the ore mill.

[0007] Furthermore, a pressure rod is slidably connected to the middle of the transmission cavity, and a needle plate is connected to one end of the pressure rod. Return springs are connected to the four corners of the needle plate, and a water baffle is connected to the edge of the needle plate. The needle plate is elastically connected to the machine body through the return springs.

[0008] Furthermore, one end of the feeding rod is connected to a drive wheel, and a ventilation component is provided on one side of the driving wheel. The ventilation component includes a valve disc, and the valve disc is provided on one side of the driving wheel, with symmetrical sealing grooves inside the valve disc.

[0009] Furthermore, the ventilation assembly also includes a sealing spring, with sealing springs symmetrically connected in the sealing groove, and a valve plate connected to the other end of the sealing spring. Connecting rods are symmetrically connected to both sides of the valve plate, and a pressure block is connected to the other end of the connecting rod.

[0010] Furthermore, the valve plates are tightly fitted together, and the valve plates are elastically connected to the sealing groove via sealing springs. The valve plates are slidably connected to the valve disc via the sealing groove, and the connecting rod is slidably connected to the valve disc.

[0011] Furthermore, an air extraction chamber is provided on one side of the machine body, and an air extraction pipe is connected to one side of the air extraction chamber. A partition is slidably connected inside the air extraction chamber, and buffer springs are symmetrically connected around the partition. A connecting rod is symmetrically connected to one side of the partition, and a pressure plate is connected to the other end of the connecting rod. The edge of the partition is in contact with the inner wall of the air extraction chamber, and the partition is elastically connected to the air extraction chamber through the buffer springs. The connecting rod is slidably connected to the machine body.

[0012] Furthermore, a discharge port is provided on one side of the machine body, and a guide plate is provided inside the discharge port. A screening frame is provided on one side of the discharge port, and a conveyor belt is provided inside the screening frame. A magnetic strip is provided inside the conveyor belt. A return port is provided on one side of the bottom of the screening frame, and a sorting port is provided on the other side of the bottom of the screening frame. A return trough is provided below the return port, and the return trough is connected to the feed hopper.

[0013] Furthermore, a transmission wheel is rotatably connected to the upper part of the screening frame, and a cam block is provided on one side of the transmission wheel. Slide rods are slidably connected to both sides of the screening frame, and a pad is connected to one end of the slide rod. A sieve plate is connected to the other end of the slide rod, and vibration springs are connected to the four corners of the sieve plate.

[0014] Furthermore, the other end of the vibration spring is connected to the screening frame and the machine body respectively, and the screen plate is elastically connected to the screening frame and the machine body through the vibration spring, and the transmission wheel meshes with the drive wheel.

[0015] This invention provides a feeding device for a lithium ore mill, which has the following advantages: During use, the material can be dehydrated twice during the conveying process, and the material is pre-crushed during the second dehydration, while dust removal is performed to prevent dust from escaping. During the conveying process, the air intake can be automatically adjusted according to the feeding speed, and the cleaning speed of the filter screen can be controlled simultaneously to prevent filter screen clogging. Before the material enters the mill, the material can be screened once to remove ferromagnetic substances, and materials with excessive volume can be returned for further crushing to prevent materials with excessive volume from being inconvenient to process in the mill.

[0016] 1. In use, this invention can convey materials through paddles, and during the conveying process, the variable-pitch spiral paddles squeeze the materials to remove moisture, thus preventing the materials from agglomerating and clogging pipes or devices due to excessive moisture content. In subsequent conveying, the crushing rods on the equidistant spiral paddles can crush the squeezed materials, preventing them from agglomerating and causing blockages. The crushed materials are also more easily processed by the grinding mill. During the crushing of materials, hot air can be sprayed from the crushing rods to dry the materials, thereby removing surface moisture and performing secondary dehydration. During the compression dehydration, the filter screen can be cleaned simultaneously to prevent material from clogging the filter screen and preventing moisture from being discharged smoothly.

[0017] 2. During crushing and drying, this invention can simultaneously extract the dust and moisture generated during crushing from the machine body and vibrate the screen to prevent clogging. The screen can prevent large particles from being extracted and can automatically adjust the airflow path under the action of centrifugal force, thereby automatically adjusting the airflow according to the feed amount. This avoids the drying effect being reduced due to insufficient airflow or the larger material particles being blown away due to excessive airflow. While controlling the airflow path, the vibration frequency of the screen can also be controlled simultaneously to avoid long-term rapid vibration accelerating the accumulation of metal fatigue in the spring.

[0018] 3. After the material leaves the machine, the present invention can drive the screen plate to vibrate through gear linkage, thereby separating the material with excessive volume and returning it for further crushing. At the same time, it can also remove ferromagnetic substances contained in the material and allow the lithium mineral material mixed in to be returned with the large volume material, thus avoiding resource waste. Attached Figure Description

[0019] Figure 1 This is a half-sectional three-dimensional structural diagram of a feeding device for a lithium ore mill according to the present invention;

[0020] Figure 2 This is a three-dimensional exploded cross-sectional view of the feeding device of a lithium ore mill according to the present invention.

[0021] Figure 3 This is a cross-sectional view of the feeding rod of the feeding device for a lithium ore mill according to the present invention.

[0022] Figure 4 This is a three-dimensional exploded cross-sectional view of the valve disc of the feeding device for a lithium ore mill according to the present invention.

[0023] Figure 5 This is a schematic diagram of the overall three-dimensional structure of the feeding device for a lithium ore mill according to the present invention;

[0024] Figure 6 This is a three-dimensional exploded cross-sectional view of the screening frame of the feeding device for a lithium ore mill according to the present invention.

[0025] In the diagram: 1. Machine body; 2. Conveying assembly; 201. Feeding rod; 202. Air inlet; 203. Paddle; 204. Crushing rod; 205. Flow channel; 206. Water outlet channel; 207. Filter screen; 208. Transmission chamber; 209. Cam plate; 210. Motor; 3. Feed hopper; 4. Pressure rod; 5. Needle plate; 6. Return spring; 7. Water baffle; 8. Drive wheel; 9. Ventilation assembly; 901. Valve disc; 902. Sealing groove; 903. Sealing spring ; 904, Valve plate; 905, Connecting rod; 906, Pressure block; 10, Air extraction chamber; 11, Air extraction pipe; 12, Partition screen; 13, Buffer spring; 14, Connecting rod; 15, Pressure plate; 16, Discharge port; 17, Guide plate; 18, Screening frame; 19, Conveyor belt; 20, Magnetic strip; 21, Return port; 22, Sorting port; 23, Return trough; 24, Drive wheel; 25, Cam block; 26, Slide rod; 27, Pad plate; 28, Screen plate; 29, Vibration spring. Detailed Implementation

[0026] Please see Figures 1 to 6 The present invention provides a technical solution: a feeding device for a lithium ore mill, comprising a body 1 and a conveying assembly 2. The conveying assembly 2 is disposed inside the body 1, and a feed hopper 3 is disposed on one side of the body 1. The conveying assembly 2 includes a feeding rod 201, which is disposed inside the body 1. An air inlet 202 is disposed on one side of the feeding rod 201. A blade 203 is disposed on one side of the feeding rod 201, and a crushing rod 204 is connected to the surface of the blade 203 on one side of the feeding rod 201. A flow channel 205 is disposed inside the side of the blade 203 connected to the crushing rod 204. A water outlet trough 206 is disposed on the bottom side of the body 1, and a filter screen 207 is disposed inside the water outlet trough 206. A transmission cavity 208 is disposed at one end of the body 1, and a cam plate 209 is rotatably connected inside the transmission cavity 208. A motor 210 is connected to one side of the cam plate 209.

[0027] Please see Figures 1 to 4The blade 203 is connected to the crushing rod 204 on one side in an equidistant spiral shape, and the blade 203 on the other side in a variable-pitch spiral shape. The cam plate 209 is connected to the feed rod 201 via a magnetic coupling. The air inlet 202 is connected to the crushing rod 204 via a flow channel 205. The motor 210 is connected to the ore mill via sensors and a controller, so that the operating power of the motor 210 matches the operating power of the ore mill. A pressure rod 4 is slidably connected to the middle of the transmission cavity 208, and one end of the pressure rod 4... A needle plate 5 is connected, with return springs 6 connected to its four corners, and a water baffle 7 connected to the edge of the needle plate 5. The needle plate 5 is elastically connected to the machine body 1 through the return springs 6. One end of the feed rod 201 is connected to a drive wheel 8, and a ventilation assembly 9 is provided on one side of the feed rod 201 and the drive wheel 8. The ventilation assembly 9 includes a valve disc 901, and the valve disc 901 is symmetrically provided with sealing grooves 902. The ventilation assembly 9 also includes a sealing spring. A sealing spring 903 is symmetrically connected within a sealing groove 902, and the other end of the sealing spring 903 is connected to a valve plate 904. Connecting rods 905 are symmetrically connected to both sides of the valve plate 904, and the other end of each connecting rod 905 is connected to a pressure block 906. The valve plates 904 are tightly fitted together, and the valve plates 904 are elastically connected to the sealing groove 902 via the sealing spring 903. The valve plates 904 are slidably connected to the valve disc 901 via the sealing groove 902, and the connecting rods 905 are slidably connected to the valve disc 901. Next, an air extraction chamber 10 is provided on one side of the machine body 1, and an air extraction pipe 11 is connected to one side of the air extraction chamber 10. A partition 12 is slidably connected inside the air extraction chamber 10, and buffer springs 13 are symmetrically connected around the partition 12. A connecting rod 14 is symmetrically connected to one side of the partition 12, and a pressure plate 15 is connected to the other end of the connecting rod 14. The edge of the partition 12 is in contact with the inner wall of the air extraction chamber 10, and the partition 12 is elastically connected to the air extraction chamber 10 through the buffer springs 13. The connecting rod 14 is slidably connected to the machine body 1.

[0028] The specific operation is as follows: During use, the material can be conveyed by the paddles 203. During conveying, the variable-pitch spiral paddles 203 compress the material, removing moisture and preventing it from agglomerating and clogging pipes or devices due to excessive moisture content. In subsequent conveying, the crushing rods 204 on the equidistant spiral paddles 203 crush the compressed material, preventing it from clumping together and causing blockages. The crushed material is also more readily processed by the grinding mill. During crushing, hot air can be ejected from the crushing rods 204 to dry the material, removing surface moisture and performing secondary dehydration. During the extrusion and dehydration process, the filter screen 207 can be cleaned simultaneously to prevent material from clogging the filter screen 207 and preventing water from being discharged smoothly. During the crushing and drying process, the dust and water vapor generated during crushing can be extracted from the machine body 1 simultaneously, and the partition screen 12 can be vibrated to prevent the partition screen 12 from clogging. The partition screen 12 can prevent large particles of material from being extracted. Under the action of centrifugal force, the airflow path can be automatically adjusted, thereby automatically adjusting the airflow according to the feed amount. This prevents the airflow from being too small, which would reduce the drying effect, or from being too large, which would blow up larger material particles. While controlling the airflow path, the vibration frequency of the partition screen 12 can also be controlled simultaneously to prevent long-term rapid vibration from accelerating the accumulation of metal fatigue in the spring.

[0029] Please see Figure 1 and Figures 5 to 6 The machine body 1 has a discharge port 16 on one side, and a guide plate 17 is installed inside the discharge port 16. A screening frame 18 is installed on one side of the discharge port 16, and a conveyor belt 19 is installed inside the screening frame 18. A magnetic strip 20 is installed inside the conveyor belt 19. A return port 21 is installed on one side of the bottom of the screening frame 18, and a sorting port 22 is installed on the other side of the bottom of the screening frame 18. A return chute 23 is installed below the return port 21 and is connected to the feed hopper 3. The upper part of the screening frame 18 rotates. A transmission wheel 24 is connected, and a cam block 25 is provided on one side of the transmission wheel 24. Slide rods 26 are slidably connected to both sides of the screening frame 18. A pad 27 is connected to one end of the slide rod 26, and a screen plate 28 is connected to the other end of the slide rod 26. Vibration springs 29 are connected to the four corners of the screen plate 28. The other end of the vibration springs 29 is connected to the screening frame 18 and the machine body 1 respectively. The screen plate 28 is elastically connected to the screening frame 18 and the machine body 1 through the vibration springs 29. The transmission wheel 24 meshes with the drive wheel 8.

[0030] The specific operation is as follows: after the material leaves the machine body 1, the screen plate 28 can be driven to vibrate through gear linkage, thereby separating the material with excessive volume and returning it for further crushing. At the same time, the ferromagnetic substances contained in the material can also be screened out, and the lithium mineral material mixed in can be returned with the large volume material to avoid resource waste.

[0031] In summary, when using this feeding device for a lithium ore mill, the motor 210 and the mill are first started. The sensor and controller match the operating power of the motor 210 with that of the mill, so that the feeding rate is synchronized with the processing efficiency of the mill. Then, the material is fed from the feed hopper 3 into the machine body 1. When the motor 210 drives the cam plate 209 to rotate, it can drive the feeding rod 201 to rotate inside the machine body 1 through the magnetic coupling. The magnetic coupling can prevent the motor 210 from being damaged if the feeding rod 201 jams.

[0032] The feeding rod 201 drives the paddle 203 to rotate inside the machine body 1, which can convey the material. Because the paddle 203 on the side near the motor 210 is a variable pitch spiral, the paddle 203 can squeeze the material when conveying it, thereby performing preliminary dehydration. The squeezed water can leave the machine body 1 from the water outlet 206. The filter screen 207 can intercept the material to prevent it from falling. When the motor 210 drives the cam plate 209 to rotate, it can periodically press the pressure rod 4, which causes the pressure rod 4 to drive the needle plate 5 to reciprocate under the machine body 1 through the return spring 6. This causes the needle plate 5 to periodically clean the filter screen 207, preventing the material from clogging the filter screen 207 and preventing the squeezed water from flowing out smoothly. The baffle plate 7 can prevent the squeezed water from splashing to the side of the machine body 1.

[0033] When the extruded material reaches the blade 203 on the other side, as the blade 203 rotates, while conveying the material, the crushing rod 204 on the blade 203 can crush the extruded material to prevent the material from agglomerating and causing blockage after extrusion. The crushed material is also more easily processed by the grinding mill. When crushing the material, as the feeding rod 201 rotates, the valve plate 904 slides in the sealing groove 902 under the action of centrifugal force and compresses the sealing spring 903, thereby opening the air inlet 202. After the hot air is sent into the air inlet 202 on the feeding rod 201, it can be sprayed out from the crushing rod 204 through the flow groove 205, so that the blade 203, together with the sprayed hot air, dries the crushed material, removes the residual moisture on the surface of the material, and performs secondary dehydration. When the hot air is drying, the dust generated during the crushing of the material can also be blown off the material.

[0034] An external air pump extracts dust and moisture from the machine body 1 through the air extraction pipe 11. The screen 12 can intercept large particles of material to prevent them from being extracted from the machine body 1 along with the dust. As the operating power of the ore mill changes, the speed of the motor 210 driving the feeding rod 201 to rotate also changes synchronously. Different speeds result in different centrifugal forces, and the distance that the valve plate 904 moves in the sealing groove 902 will also change, thereby adjusting the size of the air inlet 202. This allows the flow rate of the hot air to automatically adapt to the efficiency of feeding and crushing, avoiding the drying effect being reduced due to insufficient air flow or the larger material particles being blown away due to excessive air flow.

[0035] When the valve plate 904 moves, it can drive the pressure block 906 to move away from the valve disc 901 via the connecting rod 905. When the feeding rod 201 rotates, it can drive the pressure block 906 to move synchronously via the valve disc 901, thereby periodically squeezing the pressure plate 15. This causes the pressure plate 15 to drive the partition 12 to oscillate repeatedly in the suction chamber 10 via the buffer spring 13, thereby cleaning the partition 12 and preventing it from becoming clogged. As the rotation speed of the feeding rod 201 changes, the moving distance of the pressure block 906 also changes, thereby changing the contact frequency between the pressure block 906 and the pressure plate 15. This, in turn, regulates the oscillation frequency of the partition 12, preventing long-term rapid oscillation from accelerating the accumulation of metal fatigue in the spring, and also preventing the partition 12 from being unable to be cleaned in time due to an excessively low oscillation frequency.

[0036] When material falls from the discharge port 16 onto the screen plate 28 along the guide plate 17, the feeding rod 201 drives the cam block 25 to rotate via the drive wheel 8 and transmission wheel 24, thereby repeatedly pressing the pad plate 27. This causes the pad plate 27 to drive the screen plate 28 to vibrate repeatedly within the screening frame 18 via the slide rod 26 and vibration spring 29. Material that is too large slides along the screen plate 28 and leaves the screening frame 18 through the return port 21, then flows back into the feed hopper 3 through the return chute 23, and re-enters the machine body 1 for crushing until its size meets the requirements. Material that passes through the screen plate 28... After the material falls onto the conveyor belt 19, the magnetic strip 20 will attract the ferromagnetic substances in the material onto the conveyor belt 19, causing it to move along with the conveyor belt 19. The lithium ore component can then slide out of the screening frame 18 along the inclined surface of the conveyor belt 19 and enter the ore mill for processing. When the lithium ore component, which is carried by the ferromagnetic substance, moves to the lower surface of the conveyor belt 19, it will fall into the return port 21 under the action of gravity for recirculation. After the ferromagnetic substance moves above the sorting port 22, it loses the attraction of the magnetic strip 20 and falls down, leaving the screening frame 18 through the sorting port 22.

[0037] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A feed arrangement for a lithium ore mill, characterised in that, The utility model provides a kind of mineral grinder, including fuselage (1) and conveying assembly (2), the conveying assembly (2) is arranged in the fuselage (1), and the fuselage (1) one side is provided with feed hopper (3), the conveying assembly (2) includes feeding rod (201), the feeding rod (201) is arranged in the fuselage (1), and the feeding rod (201) one side is provided with air inlet (202), the feeding rod (201) one side is provided with paddle (203), and the feeding rod (201) one side paddle (203) surface is connected with broken rod (204), the paddle (203) one side inside that is connected with broken rod (204) is provided with flow-through groove (205), the fuselage (1) bottom side is provided with water outlet (206), and the water outlet (206) is provided with filter screen (207) inside, the fuselage (1) one end is provided with transmission cavity (208), and transmission cavity (208) is rotatably connected with cam plate (209) inside, the cam plate (209) one side is connected with motor (210), the paddle (203) one side that is connected with broken rod (204) is equidistant helical, and the other side of paddle (203) is variable-pitch helical, the cam plate (209) is connected with feeding rod (201) by magnetic coupling, the air inlet (202) is communicated with broken rod (204) by flow-through groove (205), the motor (210) is connected with mineral grinder by sensor, controller, so that the operating power of motor (210) is matched with the operating power of mineral grinder.

2. A feed arrangement for a lithium ore mill according to claim 1, characterised in that, The transmission cavity (208) middle part is slidably connected with pressure rod (4), and the pressure rod (4) one end is connected with needle plate (5), the needle plate (5) four corners are connected with reset spring (6), and the needle plate (5) edge is connected with fender (7), the needle plate (5) is elastically connected with fuselage (1) by reset spring (6).

3. A feed arrangement for a lithium ore mill according to claim 1, wherein, The feeding rod (201) one end is connected with driving wheel (8), and the feeding rod (201) is provided with ventilation assembly (9) on one side of driving wheel (8), the ventilation assembly (9) includes valve disc (901), the feeding rod (201) is provided with valve disc (901) on one side of driving wheel (8), and the valve disc (901) is symmetrically provided with sealing groove (902) inside.

4. A feed arrangement for a lithium ore mill according to claim 3, wherein, The ventilation assembly (9) further includes blocking spring (903), the sealing groove (902) is symmetrically connected with blocking spring (903) inside, and the other end of blocking spring (903) is connected with valve plate (904), the valve plate (904) both sides are symmetrically connected with connecting rod (905), and the other end of connecting rod (905) is connected with pressure block (906).

5. A feed arrangement for a lithium ore mill according to claim 4, wherein, The valve plate (904) is closely attached, and the valve plate (904) is elastically connected with sealing groove (902) by blocking spring (903), the valve plate (904) is slidingly connected with valve disc (901) by sealing groove (902), and the connecting rod (905) is slidingly connected with valve disc (901).

6. A feed arrangement for a lithium ore mill according to claim 1, wherein, The fuselage (1) one side is provided with suction chamber (10), and suction chamber (10) one side is connected with suction pipe (11), the suction chamber (10) is slidably connected with the screen (12), and the screen (12) is symmetrically connected with the buffer spring (13) around, the screen (12) one side is symmetrically connected with the connecting rod (14), and the connecting rod (14) other end is connected with the pressing plate (15), the screen (12) edge is attached with the suction chamber (10) inner wall, and the screen (12) is elastically connected with the suction chamber (10) by buffer spring (13), the connecting rod (14) is slidably connected with the fuselage (1).

7. A feed arrangement for a lithium ore mill according to claim 4, wherein, The fuselage (1) one side is provided with discharge gate (16), and the discharge gate (16) is provided with the guide plate (17), the discharge gate (16) one side is provided with screening frame (18), and the screening frame (18) is provided with the conveyer belt (19), the conveyer belt (19) inside is provided with the magnetic stripe (20), the screening frame (18) bottom one side is provided with the back material mouth (21), and the screening frame (18) bottom other side is provided with the sorting mouth (22), the back material mouth (21) below is provided with the back material groove (23), and the back material groove (23) is connected with the feed hopper (3).

8. A feed arrangement for a lithium ore mill according to claim 7, characterised in that, The screening frame (18) upper portion is rotatably connected with the transmission wheel (24), and the transmission wheel (24) one side is provided with the cam block (25), the screening frame (18) both sides are slidably connected with the slide bar (26), and the slide bar (26) one end is connected with the backing plate (27), the slide bar (26) other end is connected with the sieve plate (28), and the sieve plate (28) four corners are connected with the vibration spring (29).

9. A feed arrangement for a lithium ore mill according to claim 8, characterised in that, The vibration spring (29) other end is connected with the screening frame (18), the fuselage (1) respectively, and the sieve plate (28) is elastically connected with the screening frame (18), the fuselage (1) by vibration spring (29), the transmission wheel (24) is engaged with the drive wheel (8).

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