Beta-type spodumene grinding and screening device and screening method

Abstract

The invention belongs to the technical field of material screening, particularly relates to a beta-type spodumene grinding and screening device and a screening method, and provides the following scheme aiming at the problem that an existing screening device cannot quickly and effectively solve the problem that a filter screen in the device is blocked: the beta-type spodumene grinding and screening device comprises two support frames, and the opposite sides of the two supporting frames are connected with the same limiting frame through bolts, the interior of the limiting frame is movably connected with a cylinder, the upper portion of the cylinder is fixedly connected with a grinding table, and the top of the grinding table is fixedly connected with a grinding machine. According to the beta-type spodumene grinding and screening device and the screening method, beta-type spodumene blocked on filter holes of the first screen on the screening device can be effectively dredged, and meanwhile beta-type spodumene powder accumulated on the surface of the second screen is swept, so that smooth operation of the beta-type spodumene screening process is guaranteed; and the effects that the normal use of the device is influenced and the screening efficiency is reduced due to excessive accumulation caused by blockage of beta-type spodumene in the device are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of material screening, and particularly relates to a β-spodumene grinding and screening device and a screening method. Background Art

[0002] Spodumene, as an important industrial mineral of lithium, mainly comes from lithium-rich granite pegmatite. It is different from other pyroxene minerals because spodumene is a pegmatite mineral, often symbiotic with quartz, tourmaline, beryl, etc., and the color of spodumene crystals will change when heated or irradiated by ultraviolet light, and may lose luster under the action of sunlight. When roasted to about 1000 °C, spodumene will rapidly transform into β-spodumene and exhibit thermal cracking properties.

[0003] After β-spodumene is ground, it needs to be screened. During the screening process of β-spodumene by the screening device, some β-spodumene will block the filter screen in the device, and it is necessary to stop the machine and clean the screen manually, which affects the normal use of the screening device and reduces the screening efficiency. Summary of the Invention

[0004] The present invention discloses a β-spodumene grinding and screening device and a screening method, aiming to solve the technical problem that the existing screening device in the background art cannot quickly and effectively solve the blockage of the filter screen in the device.

[0005] A β-spodumene grinding and screening device proposed by the present invention includes two support frames. The opposite sides of the two support frames are connected with the same limiting frame by bolts, and a cylinder is movably connected inside the limiting frame. A grinding table is fixedly connected above the cylinder, and a grinding machine is fixedly connected to the top of the grinding table. A feeding hole is opened on one side of the cylinder, and a feeding pipe is fixedly connected inside the feeding hole. The inner wall of the cylinder is fixedly connected with a first screen and a second screen at equal intervals. The first screen is located above the second screen. A blockage dredging module is arranged inside the cylinder, and the blockage dredging module is located between the first screen and the second screen. A vibration and shaking module is arranged at the bottom of the cylinder; The blockage dredging module includes a mounting seat movably connected above a moving plate, and a plurality of ejector rods evenly distributed in a circle are arranged on the top of the mounting seat; The vibration and shaking module includes a cross support plate, and a square through hole is opened on one side of the cross support plate. A rack is movably connected inside the square through hole.

[0006] By providing a cylinder body, a blockage dredging module, a vibration shaking module, a first screen and a second screen, the device can effectively dredge the large particles blocked on the first screen of the screening device by using the blockage dredging module, and at the same time clean the powder accumulated on the surface of the second screen, so as to ensure the smooth operation of β spodumene during the screening process, and avoid the excessive accumulation caused by the blockage of β spodumene in the device, which affects the use function of the device and reduces the screening efficiency.

[0007] In a preferred solution, an annular groove is formed in the inner wall of the cylinder body, and an L-shaped linkage sliding seat is slidably connected inside the annular groove. A driving motor is fixedly connected to one side of the L-shaped linkage sliding seat, and a driving gear is connected to the driving end of the driving motor through a coupling. The annular gear meshes with the driving gear through a tooth groove; a U-shaped rail is fixedly connected to the side of the driving motor away from the driving gear, and a moving plate is slidably connected inside the U-shaped rail. A limiting seat is connected inside the moving plate through a bolt, a circular groove is formed inside the limiting seat, and a double-rod hydraulic cylinder is fixedly connected inside the circular groove; one end of the double-rod hydraulic cylinder is fixedly connected to the bottom of the mounting seat, and four circular openings are formed above the mounting seat and are equally distributed circumferentially. The inner walls of the four circular openings are respectively slidably connected to the outside of the four ejector rods, and the other end of the double-rod hydraulic cylinder is fixedly connected to a cleaning brush plate; limiting rings are fixedly connected to the outside of the four ejector rods, and buffer springs are fixedly connected to the bottoms of the limiting rings. The buffer springs are all wound around the outside of the ejector rods, and the ends of the buffer springs away from the limiting rings are fixedly connected to the upper side of the mounting seat; a servo motor is fixedly connected to the bottom of the U-shaped rail, and the output end of the servo motor is connected to a wire winding roller through a coupling. The wire winding roller is movably connected inside the U-shaped rail, a steel wire rope is fixedly connected to the outside of the wire winding roller, and the end of the steel wire rope away from the wire winding roller is fixedly connected to the outside of the limiting seat.

[0008] By providing a blockage dredging module, the blockage dredging module can use the U-shaped rail and the moving plate to move the mounting seat and the cleaning brush plate to any position on the first screen and the second screen, so that when the filter holes of the first screen are blocked by β spodumene and β spodumene powder accumulates on the surface of the second screen, the device can quickly and accurately position, dredge and clean the blocked and accumulated positions, reduce the positioning and processing time, thereby shortening the downtime of the device and improving the screening efficiency of the device.

[0009] In a preferred embodiment, a rotary motor is fixedly connected to the bottom end of the cylinder body, and the driving end of the rotary motor is fixedly connected to the center of the bottom of the cylinder body through a coupling. Four connecting springs are fixedly connected to the bottom end of the cylinder body and are circumferentially and equidistantly distributed. The ends of the four connecting springs away from the limiting frame are fixedly connected to the same cross-shaped mounting plate. A plurality of limiting holes are circumferentially and equidistantly formed on one side of the cross-shaped mounting plate, and fixing members are movably connected inside the limiting holes; on the opposite sides of the two support frames, a same cross-shaped support plate is connected by bolts, and the bottom ends of the plurality of fixing members are fixedly connected to the top of the cross-shaped support plate. A plurality of compression springs are fixedly connected to the top of the cross-shaped support plate, and one end of each compression spring is fixedly connected to the bottom of the cross-shaped mounting plate. The plurality of compression springs are all movably disposed outside the fixing members; a square groove is formed in the center of the cross-shaped support plate, and a rack is movably connected inside the square groove. The top end of the rack is connected to the bottom of the cross-shaped mounting plate by bolts. Two connecting plates are fixedly connected to the bottom of the cross-shaped support plate. Moving holes are formed on the opposite sides of the two connecting plates, and a rotating shaft is movably connected inside the two moving holes. A notched gear is fixedly connected to the outer wall of the rotating shaft. The rack is meshed with the notched gear through a tooth groove. One end of one of the connecting plates is fixedly connected to a universal motor, and the driving end of the universal motor is connected to one end of the rotating shaft through a coupling.

[0010] By providing a vibration and shaking module, the vibration and shaking module uses the rotary motor and the connecting springs to shake the cylinder body, and at the same time uses the universal motor to change the rotation speed of the notched gear, so as to realize the compression speed of the cross-shaped mounting plate and the cylinder body on the compression springs, so that the device can control the vibration amplitude of the cylinder body according to the different grinding degrees of the β-spodumene, and make the screening effect of the device reach the best.

[0011] A method for using a β-spodumene grinding and screening device, using a β-spodumene grinding and screening device as described above, includes the following steps: Step 1: The ground β-spodumene flows from the edge of the grinding table into the cylinder body and falls onto the first screen. Use the vibration and shaking module to continuously vibrate and shake, so that the first screen screens out large particles. The screened β-spodumene powder passes through the second screen again for re-screening, and the screened β-spodumene powder flows out of the cylinder body through the discharge pipe. Step 2: After the screening is completed, use the blockage and dredging module to process the powder and particles blocked on the first screen. Insert the ejector rod into the filter holes on the first screen to push out the particles blocked in the filter holes, and at the same time use the cleaning brush plate to clean the surface of the second screen.

[0012] As can be seen from the above, a β-spodumene grinding and screening device provided by the present invention can effectively dredge the β-spodumene blocked in the filter holes of the first screen and clean the β-spodumene powder accumulated on the surface of the second screen, thereby ensuring the smooth operation of the β-spodumene screening process, avoiding the excessive accumulation caused by the blockage of β-spodumene in the device, affecting the normal use of the device and reducing the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of a β-spodumene grinding and screening device proposed by the present invention; Figure 2 is a schematic cross-sectional structure diagram of a blockage dredging module of a β-spodumene grinding and screening device proposed by the present invention; Figure 3 is a partial structure schematic diagram of a blockage dredging module of a β-spodumene grinding and screening device proposed by the present invention; Figure 4 is a schematic diagram of the mounting seat and wire winding roller structure of a β-spodumene grinding and screening device proposed by the present invention; Figure 5 is a schematic diagram of the mounting seat structure of a β-spodumene grinding and screening device proposed by the present invention; Figure 6 is a schematic cross-sectional structure diagram of a vibration and shaking module of a β-spodumene grinding and screening device proposed by the present invention; Figure 7 is a partial cross-sectional structure schematic diagram of a vibration and shaking module of a β-spodumene grinding and screening device proposed by the present invention.

[0014] In the figure: 1, support frame; 2, limit frame; 3, cylinder body; 4, first screen; 5, second screen; 6, blockage dredging module; 601, L-shaped linkage sliding seat; 602, annular gear; 603, driving gear; 604, driving motor; 605, servo motor; 606, U-shaped rail; 607, moving plate; 608, limit seat; 609, double-rod hydraulic cylinder; 610, cleaning brush plate; 611, mounting seat; 612, wire winding roller; 613, steel wire rope; 614, ejector rod; 615, limit ring; 616, buffer spring; 7, vibration and shaking module; 701, rotating motor; 702, connecting spring; 703, cross mounting plate; 704, fixing piece; 705, compression spring; 706, cross support plate; 707, rack; 708, general motor; 709, connecting plate; 710, notched gear; 711, rotating shaft; 8, grinding table; 9, grinder; 10, feeding pipe. DETAILED DESCRIPTION OF THE INVENTION

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0016] A β-type spodumene grinding and screening device disclosed by the present invention is mainly applied to the scenario where the existing screening device cannot quickly and effectively solve the problem of filter screen blockage in the device.

[0017] Refer to Figure 1-7 , a β-type spodumene grinding and screening device, includes two support frames 1. The opposite sides of the two support frames 1 are connected with the same limiting frame 2 by bolts, and a cylinder body 3 is movably connected inside the limiting frame 2. A grinding table 8 is fixedly connected above the cylinder body 3, and a grinding machine 9 is fixedly connected to the top of the grinding table 8. A feeding hole is opened on one side of the cylinder body 3, and a feeding pipe 10 is fixedly connected inside the feeding hole. The inner wall of the cylinder body 3 is fixedly connected with a first screen 4 and a second screen 5 at equal intervals. The first screen 4 is located above the second screen 5. A blockage dredging module 6 is arranged inside the cylinder body 3, and the blockage dredging module 6 is located between the first screen 4 and the second screen 5. A vibration and shaking module 7 is arranged at the bottom of the cylinder body 3; The blockage dredging module 6 includes that a mounting seat 611 is movably connected above a moving plate 607, and a plurality of ejector rods 614 are arranged at equal intervals in a circumferential manner on the top of the mounting seat 611; The vibration and shaking module 7 includes a cross-shaped support plate 706, and a square through hole is opened on one side of the cross-shaped support plate 706. A rack 707 is movably connected inside the square through hole.

[0018] Specifically, the ground β-type spodumene flows from the edge of the grinding table 8 into the cylinder body 3 and falls onto the first screen 4. The vibration and shaking module 7 is used to continuously vibrate and shake, so that the first screen 4 screens out large particles. The screened β-type spodumene powder passes through the second screen 5 again for re-screening. The screened β-type spodumene powder flows out of the cylinder body 3 through the feeding pipe 10. After the screening is completed, the blockage dredging module 6 is used to deal with the powder and particles blocked on the first screen 4. The ejector rods 614 are inserted into the filter holes on the first screen 4, so as to push out the particles blocked in the filter holes. At the same time, a cleaning brush plate 610 is used to clean the surface of the second screen 5; The device can effectively dredge the large particles blocked on the first screen 4 of the screening device by using the blockage dredging module 6, and at the same time clean the powder accumulated on the surface of the second screen 5, so as to ensure the smooth operation of β-type spodumene during the screening process, and avoid the excessive accumulation caused by the blockage of β-type spodumene in the device, which affects the use function of the device and reduces the screening efficiency.

[0019] Refer to Figure 2 , Figure 3 , Figure 4 and Figure 5, in a preferred embodiment, an annular groove is formed in the inner wall of the cylinder body 3, and an L-shaped linkage sliding seat 601 is slidably connected inside the annular groove. A driving motor 604 is fixedly connected to one side of the L-shaped linkage sliding seat 601. The driving end of the driving motor 604 is connected to a driving gear 603 through a coupling. The annular gear 602 meshes with the driving gear 603 through a tooth groove; a U-shaped rail 606 is fixedly connected to the side of the driving motor 604 away from the driving gear 603, and a moving plate 607 is slidably connected inside the U-shaped rail 606. A limiting seat 608 is connected to the inside of the moving plate 607 through bolts. A circular groove is formed in the limiting seat 608, and a double-rod hydraulic cylinder 609 is fixedly connected inside the circular groove; one end of the double-rod hydraulic cylinder 609 is fixedly connected to the bottom of the mounting seat 611, and four circular openings are formed above the mounting seat 611 and are equally distributed circumferentially. The inner walls of the four circular openings are respectively slidably connected to the outer parts of the four ejector rods 614. The other end of the double-rod hydraulic cylinder 609 is fixedly connected to a cleaning brush plate 610; limiting rings 615 are fixedly connected to the outer parts of the four ejector rods 614, and buffer springs 616 are fixedly connected to the bottoms of the limiting rings 615. The buffer springs 616 are all wound around the outer parts of the ejector rods 614, and the ends of the buffer springs 616 away from the limiting rings 615 are fixedly connected to the upper side of the mounting seat 611; a servo motor 605 is fixedly connected to the bottom of the U-shaped rail 606, and the output end of the servo motor 605 is connected to a wire winding roller 612 through a coupling. The wire winding roller 612 is movably connected inside the U-shaped rail 606. A steel wire rope 613 is fixedly connected to the outer part of the wire winding roller 612, and one end of the steel wire rope 613 away from the wire winding roller 612 is fixedly connected to the outer part of the limiting seat 608.

[0020] Specifically, after the first screen 4 is blocked by the powder and particles of β-spodumene, the driving motor 604 is started. The driving motor 604 drives the driving gear 603 meshing with the annular gear 602 to rotate, so that the U-shaped rail 606 can perform a circular motion inside the cylinder body 3. The servo motor 605 is started. The servo motor 605 drives the wire winding roller 612 to rotate, so that the wire winding roller 612 winds or releases the steel wire rope 613, and the moving plate 607 slides inside the U-shaped rail 606. After the limiting seat 608 moves to the lower part of the blocked position on the first screen 4, the double-rod hydraulic cylinder 609 is started. The double-rod hydraulic cylinder 609 lifts the mounting seat 611, so that the ejector rods 614 on the mounting seat 611 can be inserted into the blocked filter holes on the first screen 4, and the powder and particles in the filter holes are pushed out. At the same time, the cleaning brush plate 610 cleans the surface of the second screen 5.

[0021] In a specific application scenario, the blockage dredging module 6 is mainly applicable to the dredging and cleaning link during the blockage dredging and cleaning process. That is, the blockage dredging module 6 can use the U-shaped rail 606 to move the moving plate 607 and the limit seat 608 to any position on the first screen 4 and the second screen 5. Thus, when the first screen 4 is blocked by powder and particles and β-type spodumene powder accumulates on the surface of the second screen 5, the device can quickly and accurately locate the blocked position, reduce the positioning and processing time, thereby shortening the downtime of the device and improving the screening efficiency of the device.

[0022] It should be noted that the impact force generated when the buffer ejector rod 614 dredges the filter holes on the first screen 4 is buffered by the limit ring 615 and the buffer spring 616 to avoid damage to the first screen 4 caused by the ejector rod 614.

[0023] Refer to Figure 6 and Figure 7 Referring to

[0024] Specifically, before the β-spodumene falls onto the first sieve 4 for screening, start the rotating motor 701. The rotating motor 701 drives the cylinder 3 to shake. At the same time, start the general motor 708. The general motor 708 rotates the notched gear 710. Since the notched gear 710 meshes with the tooth groove of the tooth bar 707, the tooth bar 707 drives the cross mounting plate 703 and the cylinder 3 to move downward as a whole, compressing the compression spring 705. When the notched gear 710 rotates to a certain angle, the compression spring 705 uses its own elastic force to make the cross mounting plate 703 and the cylinder 3 move upward as a whole, thereby realizing continuous vibration and shaking of the first sieve 4 and the second sieve 5 for the β-spodumene, and thus realizing the screening process of the β-spodumene.

[0025] In a specific application scenario, the vibration and shaking module 7 is applicable to the vibration and shaking link during the vibration and shaking process. That is, the vibration and shaking module 7 uses the rotating motor 701 and the connecting spring 702 to shake the cylinder 3. At the same time, the general motor 708 is used to change the rotation speed of the notched gear 710, so as to realize the compression speed of the cross mounting plate 703 and the cylinder 3 on the compression spring 705, enabling the device to control the vibration amplitude of the cylinder 3 according to different grinding degrees of the β-spodumene, and making the screening effect of the device reach the best.

[0026] A method for using a β-spodumene grinding and screening device, using a β-spodumene grinding and screening device as described above, includes the following steps: Step 1: The ground β-spodumene flows from the edge of the grinding table 8 into the cylinder 3 and falls onto the first sieve 4. Use the vibration and shaking module 7 to describe continuous vibration and shaking, so that the first sieve 4 screens large particles. The screened β-spodumene powder passes through the second sieve 5 again for re-screening. The screened β-spodumene powder flows out of the cylinder 3 through the feeding pipe 10 (before the β-spodumene falls onto the first sieve 4 for screening, start the rotating motor 701. The rotating motor 701 drives the cylinder 3 to shake. At the same time, start the general motor 708. The general motor 708 rotates the notched gear 710. Since the notched gear 710 meshes with the tooth groove of the tooth bar 707, the tooth bar 707 drives the cross mounting plate 703 and the cylinder 3 to move downward as a whole, compressing the compression spring 705. When the notched gear 710 rotates to a certain angle, the compression spring 705 uses its own elastic force to make the cross mounting plate 703 and the cylinder 3 move upward as a whole, thereby realizing continuous vibration and shaking of the first sieve 4 and the second sieve 5 for the β-spodumene, and thus realizing the screening process of the β-spodumene); Step 2. After the screening is completed, use the blockage dredging module 6 to process the powder and particles blocked on the first sieve 4. Insert the ejector rod 614 into the filter holes on the first sieve 4 to push out the particles blocked in the filter holes. At the same time, use the cleaning brush plate 610 to clean the surface of the second sieve 5. (After the first sieve 4 is blocked by the powder and particles of β-spodumene, start the drive motor 604. The drive motor 604 drives the drive gear 603 engaged with the annular gear 602 to rotate, so that the U-shaped rail 606 can move in a circular motion inside the cylinder 3. Start the servo motor 605. The servo motor 605 drives the wire winding roller 612 to rotate, so that the wire winding roller 612 winds or releases the steel wire rope 613, and makes the moving plate 607 slide inside the U-shaped rail 606. After the limit seat 608 moves to the lower part of the blocked position on the first sieve 4, start the double-rod hydraulic cylinder 609. The double-rod hydraulic cylinder 609 lifts the mounting seat 611, so that the ejector rod 614 on the mounting seat 611 can be inserted into the blocked filter holes on the first sieve 4 to push out the powder and particles in the filter holes. At the same time, the cleaning brush plate 610 cleans the surface of the second sieve 5).

[0027] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A β-type spodumene grinding and screening device, comprising two support frames (1), characterized in that, On the opposite sides of the two support frames (1), the same limiting frame (2) is connected by bolts, and a cylinder body (3) is movably connected inside the limiting frame (2). A grinding table (8) is fixedly connected above the cylinder body (3), and a grinding machine (9) is fixedly connected to the top of the grinding table (8). A material discharging hole is formed in one side of the cylinder body (3), and a material discharging pipe (10) is fixedly connected inside the material discharging hole. The inner wall of the cylinder body (3) is fixedly connected with a first sieve (4) and a second sieve (5) at equal intervals. The first sieve (4) is located above the second sieve (5). A blockage dredging module (6) is arranged inside the cylinder body (3), and the blockage dredging module (6) is located between the first sieve (4) and the second sieve (5). A vibration and shaking module (7) is arranged at the bottom of the cylinder body (3); The blockage dredging module (6) includes that a mounting seat (611) is movably connected above a moving plate (607), and a plurality of ejector rods (614) are arranged at the top of the mounting seat (611) in a circumferentially equally spaced manner; The vibration and shaking module (7) includes a cross-shaped support plate (706), and a square through hole is formed in one side of the cross-shaped support plate (706). A rack (707) is movably connected inside the square through hole.

2. The β spodumene grinding and screening device according to claim 1, wherein An annular groove is formed in the inner wall of the cylinder body (3), and an L-shaped linkage sliding seat (601) is slidably connected inside the annular groove. A driving motor (604) is fixedly connected to one side of the L-shaped linkage sliding seat (601). The driving end of the driving motor (604) is connected with a driving gear (603) through a coupling. An annular gear (602) is meshed with the driving gear (603) through a tooth groove.

3. The β-type spodumene grinding and screening device according to claim 2, wherein, A U-shaped rail (606) is fixedly connected to the side of the driving motor (604) away from the driving gear (603), and a moving plate (607) is slidably connected inside the U-shaped rail (606). A limiting seat (608) is connected inside the moving plate (607) by bolts. A circular groove is formed inside the limiting seat (608), and a double-rod hydraulic cylinder (609) is fixedly connected inside the circular groove.

4. A β spodumene grinding and screening device according to claim 3, characterized in that, One end of the double-rod hydraulic cylinder (609) is fixedly connected to the bottom of the mounting seat (611), and four circular openings are formed above the mounting seat (611) in a circumferentially equally spaced manner. The inner walls of the four circular openings are respectively slidably connected to the outer parts of the four ejector rods (614). The other end of the double-rod hydraulic cylinder (609) is fixedly connected with a cleaning brush plate (610).

5. A β-type spodumene grinding and screening device according to claim 4, characterized in that, Limiting rings (615) are fixedly connected to the outer parts of the four ejector rods (614), and buffer springs (616) are fixedly connected to the bottoms of the limiting rings (615). The buffer springs (616) are all wound around the ejector rods (614), and the ends of the buffer springs (616) away from the limiting rings (615) are fixedly connected to the upper side of the mounting seat (611).

6. The β spodumene grinding and screening device according to claim 5, wherein, A servo motor (605) is fixedly connected to the bottom of the U-shaped rail (606), and the output end of the servo motor (605) is connected to a wire winding roller (612) through a coupling. The wire winding roller (612) is movably connected inside the U-shaped rail (606). A steel wire rope (613) is fixedly connected to the outside of the wire winding roller (612). One end of the steel wire rope (613) far from the wire winding roller (612) is fixedly connected to the outside of the limit seat (608).

7. A β-spodumene grinding and screening device according to claim 6, characterized in that, A rotary motor (701) is fixedly connected to the bottom end of the cylinder body (3), and the driving end of the rotary motor (701) is fixedly connected to the center of the bottom of the cylinder body (3) through a coupling. Four connecting springs (702) are fixedly connected to the bottom end of the cylinder body (3) and are equally distributed in a circumferential manner. One end of the four connecting springs (702) far from the limit frame (2) is fixedly connected to the same cross mounting plate (703). A plurality of limit holes are equally spaced in a circumferential manner on one side of the cross mounting plate (703), and fixing members (704) are movably connected inside the limit holes.

8. A β-type spodumene grinding and screening device according to claim 7, characterized in that, The opposite sides of the two support frames (1) are bolted to the same cross support plate (706), and the bottom ends of the plurality of fixing members (704) are fixedly connected to the top of the cross support plate (706). A plurality of compression springs (705) are fixedly connected to the top of the cross support plate (706). One end of the compression spring (705) is fixedly connected to the bottom of the cross mounting plate (703), and the plurality of compression springs (705) are all movably outside the fixing members (704).

9. A β-type spodumene grinding and screening device according to claim 8, characterized in that, A square groove is formed in the center of the cross support plate (706), and a rack bar (707) is movably connected inside the square groove. The top end of the rack bar (707) is bolted to the bottom of the cross mounting plate (703). Two connecting plates (709) are fixedly connected to the bottom of the cross support plate (706). Moving holes are formed in the opposite sides of the two connecting plates (709), and a rotating shaft (711) is movably connected inside the two moving holes. A notched gear (710) is fixedly connected to the outer wall of the rotating shaft (711). The rack bar (707) meshes with the notched gear (710) through a tooth groove. One end of one of the connecting plates (709) is fixedly connected to a universal motor (708), and the driving end of the universal motor (708) is connected to one end of the rotating shaft (711) through a coupling.

10. A method for using a grinding and screening device for β-type spodumene, which uses a grinding and screening device for β-type spodumene as described in claim 9, characterized in that, It includes the following steps: Step 1: The ground β-type spodumene flows from the edge of the grinding table (8) into the cylinder body (3) and falls onto the first sieve (4). The vibration shaking module (7) is used to continuously vibrate and shake, so that the first sieve (4) screens out large particles. The screened β-type spodumene powder is then re-screened through the second sieve (5). The screened β-type spodumene powder flows out of the cylinder body (3) through the feeding pipe (10). Step 2: After the screening is completed, the blockage dredging module (6) is used to process the powder and particles blocked on the first sieve (4). The ejector rod (614) is inserted into the filter holes on the first sieve (4) to push out the particles blocked in the filter holes. At the same time, the cleaning brush plate (610) is used to clean the surface of the second sieve (5).

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