A lithium carbonate solid-liquid separation device

Abstract

The application belongs to the technical field of lithium carbonate solid-liquid separation, and discloses a lithium carbonate solid-liquid separation device; the device comprises two groups of supporting plates, a motor shell, a driving mechanism, a screening assembly and a cleaning assembly, a vertical rod is rotatably installed at the center of the top of the shell, a rotating rod is sleeved at the bottom of the vertical rod, and two stirring rods are symmetrically installed on the outer side of the rotating rod close to the cleaning assembly. The device is used in cooperation with the driving mechanism, the screening assembly, the cleaning assembly, the vertical rod, the rotating rod and the limiting strip, realizes the operation of intermittent rotation after the downward sliding of the rotating rod, and then upward sliding, makes the stirring rod stir the lithium carbonate, drives the brushes on the brush plate to clean the lithium carbonate in the filter hole, saves the power consumption caused by the opening and closing of the separator, and after the lithium carbonate is separated and dried, the device is turned over by the motor, so that the lithium carbonate falls on the screen plate and is vibrated and screened, the step of transporting the lithium carbonate is reduced, and the lithium carbonate is prevented from being dampened and deteriorated during transportation.

Description

Technical Field

[0001] This invention relates to the field of solid-liquid separation technology, and more specifically, to a lithium carbonate solid-liquid separation device. Background Technology

[0002] Lithium carbonate is an inorganic compound used as a raw material and component in ceramics, glass, ferrites, etc., and for applications such as silver paste spraying. The main production methods for lithium carbonate are the ore method and the brine comprehensive utilization method. After the brine extracts barium chloride, the lithium-containing liquid is added with soda ash to remove calcium and magnesium ions. Hydrochloric acid is added for acidification, sodium chloride is evaporated to remove it, iron is removed, and then excess soda ash is added to precipitate lithium carbonate. After washing with water, centrifugation, and drying, the finished lithium carbonate product is obtained.

[0003] In lithium carbonate solid-liquid separation, a centrifuge is used to filter, wash, and dry the lithium carbonate solid-liquid mixture. Compressed air is injected into the separator, and under air pressure, the mixture is separated from the solid by passing through filter plates. However, after prolonged use, the filter plates are prone to clogging and require cleaning. During filter plate cleaning, the separation equipment cannot be used, resulting in reduced production efficiency and increased power consumption due to the separator's switching power supply. After drying, the lithium carbonate needs to be transported to a screening device for further sieving. During transportation, the lithium carbonate is susceptible to contact with moisture in the external environment, leading to moisture absorption and deterioration.

[0004] In view of this, this application proposes a lithium carbonate solid-liquid separation device. Summary of the Invention

[0005] To overcome the above-mentioned defects of the prior art, the present invention proposes a lithium carbonate solid-liquid separation device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lithium carbonate solid-liquid separation device, comprising a support plate, wherein there are two sets of support plates, and a housing is rotatably mounted between the two sets of support plates via a rotating shaft. One end of the rotating shaft is fixedly connected to an output shaft of a motor mounted on the support plate. A vertical rod is rotatably mounted at the center of the top of the housing. A drive mechanism is provided on one side of the top of the vertical rod and mounted on the top of the inner side of the housing. A rotating rod is sleeved on the bottom of the vertical rod. A screening component is provided at the upper end of the rotating rod. A cleaning component is provided at the bottom of the rotating rod and mounted on the bottom of the housing. Two stirring rods are symmetrically mounted on the outer side of the rotating rod near the cleaning component.

[0007] Furthermore, the drive mechanism includes a mounting plate installed on the top of the inner side of the housing. A drive rod is rotatably mounted on the inner side of the mounting plate. One end of the drive rod is fixedly connected to the output shaft of a second motor installed on the outer side of the mounting plate. An incomplete gear is mounted on the outer side of the drive rod, and an incomplete gear is mounted on the other end of the drive rod. A driven rod is also rotatably mounted on the inner side of the mounting plate. A complete gear is mounted on one end of the driven rod, which meshes with the incomplete gear. An eccentric wheel is mounted on the other end of the driven rod. The outer end face of the eccentric wheel abuts against a retaining ring fixed to the top of the rotating rod. A limit strip is fixedly connected to the inner side of the rotating rod, and the limit strip is slidably connected in a limit groove opened on the outer side of the upright.

[0008] Furthermore, the screening assembly includes a fixed plate installed inside the upper part of the housing. The bottom of the fixed plate is elastically connected to three layered screen plates by two limiting springs. The fixed plate and the three screen plates are also movably sleeved on the outside of the rotating rod, and the three screen plates are fixedly connected by a connecting plate. The bottom of the screen plate closest to the fixed plate is fixedly connected to a disc II. The bottom surface of the disc II has a plurality of semi-circular protrusions I arranged in a ring. The disc I is fixedly installed on the outer wall of the rotating rod near the disc II. The disc I and the disc II are also movably sleeved on the outside of the rotating rod. The surface of the disc I has a plurality of semi-circular protrusions II arranged in a ring. The protrusions on the disc I and the disc II are spaced apart and form sliding contact. The side of the screen plate closest to the fixed plate is fixedly connected to a guide block, which is slidably connected in a guide groove opened in the inner wall of the housing.

[0009] Furthermore, the cleaning assembly includes a fixed cylinder installed at the bottom of the housing, which is in communication with the housing. A filter plate is installed on the top of the fixed cylinder, which is parallel to the bottom surface of the inner side of the housing. Two brush plates are symmetrically installed on the outer side of the rotating rod near the bottom of the filter plate. The brushes on the top of the brush plates are inserted into the filter holes in the annular array on the filter plate. A rotating plate is elastically connected to the bottom surface of the inner side of the fixed cylinder through a buffer spring. The top of the rotating plate is rotatably connected to the bottom of the rotating rod. Two limiting rods that are slidably connected to the fixed cylinder are symmetrically installed on the outer side of the rotating plate. A drain pipe is connected to the bottom of the fixed cylinder.

[0010] Furthermore, a driven rod two is rotatably mounted on the inner side of the mounting plate. The incomplete gear one meshes with the complete gear two fixed on the driven rod two. A driving bevel gear is mounted on the end of the driven rod two away from the mounting plate. The driving bevel gear meshes with the driven bevel gear fixed on the upright.

[0011] Furthermore, each of the complete gear one and complete gear two is provided with a pawl that engages with it on one side. The pawl is rotatably connected to the inner side of the mounting plate via a fixing rod, and the pawl is also elastically connected to the inner side of the mounting plate via an arc spring.

[0012] Furthermore, the outer side of the incomplete gear one has one-twelfth teeth, and the outer side of the incomplete gear two has one-quarter teeth. When the outer teeth of the incomplete gear one contact the complete gear two, the outer teeth of the incomplete gear two contact the complete gear one by one-third.

[0013] Furthermore, the outer wall of the outer shell is provided with cleaning doors corresponding to the positions of the fixing plate and the three sieve plates, and the diameter of the sieve holes of the three sieve plates gradually decreases from bottom to top.

[0014] Furthermore, a feed pipe is connected to one side of the outer shell, a water injection pipe is also connected to one side of the outer shell, an air inlet pipe is connected to the other side of the outer shell, and a hot air pipe is connected to the other side of the outer shell.

[0015] The technical effects and advantages of the lithium carbonate solid-liquid separation device of the present invention are as follows:

[0016] (1) By using the drive mechanism, upright rod, rotating rod and limit bar together, the rotating rod slides down and then rotates intermittently and then slides up. The stirring rod moves with the rotating rod, and at the same time slides down and then rotates intermittently and then slides up. The stirring rod comes into full contact with lithium carbonate, which can increase the stirring and drying of the lithium carbonate solid-liquid mixture.

[0017] (2) By using the drive mechanism, upright rod, rotating rod, limit bar and cleaning component together, the brush plate slides down and rotates intermittently and then slides up. The brush slides down and disengages from one set of filter holes in the filter plate, then rotates to another set of filter holes, slides up and inserts into another set of filter holes. This can push out the lithium carbonate in the filter holes, avoid clogging the filter holes, and clean the filter plate during the solid-liquid separation of lithium carbonate, improve production efficiency and save power consumption caused by the switch of the separator.

[0018] (3) After the lithium carbonate is separated and dried, the equipment is flipped by the motor to make the lithium carbonate fall onto the screen plate. Through the combined use of the drive structure, uprights, rotating rods, limit bars and screening components, the lithium carbonate is vibrated and screened, which avoids the accumulation of lithium carbonate on the screen plate, increases the screening effect, reduces the steps of transporting lithium carbonate, and avoids the lithium carbonate from getting damp and deteriorating during transportation. Attached Figure Description

[0019] Figure 1 This is a perspective view of the overall structure of the present invention;

[0020] Figure 2 This is a cross-sectional view of the overall internal structure of the present invention;

[0021] Figure 3 This is a flipped sectional view of the overall internal structure of the present invention;

[0022] Figure 4 This is a perspective view of the contact structure between the eccentric wheel and the retaining ring of the present invention;

[0023] Figure 5 This is a perspective view of the connection structure of the upright pole, driving mechanism, and rotating pole of the present invention;

[0024] Figure 6 This is a three-dimensional view of the structural distribution on the mounting plate of the present invention;

[0025] Figure 7 This is a perspective view of the rotating structure of the fixing plate and sieve plate of the present invention;

[0026] Figure 8 This is a cross-sectional view of the cleaned component structure for the present invention;

[0027] Figure 9 This is a three-dimensional view of the structural distribution on the rotating rod of the present invention.

[0028] In the picture:

[0029] 1. Outer shell; 101. Cleaning door; 102. Feed pipe; 103. Air inlet pipe; 104. Water injection pipe; 105. Hot air pipe; 2. Support plate; 3. Motor 1; 4. Rotating shaft; 5. Upright pole; 6. Drive mechanism; 601. Mounting plate; 602. Driven bevel gear; 603. Motor 2; 604. Drive rod; 6041. Incomplete gear 1; 6042. Incomplete gear 2; 605. Driven rod 1; 6051. Complete gear 1; 6052. Eccentric wheel; 606. Driven rod 2; 6061. Complete gear 2; 6062. Main... 607. Moving bevel gear; 6071. Fixed rod; 6072. Pawl; 6073. Arc spring; 608. Retaining ring; 7. Rotating rod; 701. Limiting bar; 702. Stirring rod; 8. Screening assembly; 801. Disc one; 802. Fixed plate; 803. Limiting spring; 804. Screen plate; 805. Connecting plate; 806. Disc two; 807. Guide block; 9. Cleaning assembly; 901. Fixed cylinder; 9011. Drain pipe; 902. Filter plate; 903. Buffer spring; 904. Rotating plate; 9041. Limiting rod; 905. Brush plate. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] Example

[0032] Reference Figure 1-9Support plate 2, there are two sets of support plates 2, and the outer shell 1 is rotatably installed between the two sets of support plates 2 through the rotating shaft 4. The bottom of the support plate 2 is in contact with the ground and supports the whole. One end of the rotating shaft 4 is fixedly connected to the output shaft of the motor 3 installed on the support plate 2. The outer shell 1 is flipped by the motor 3, so that the lithium carbonate inside the outer shell 1 is flipped. A vertical rod 5 is rotatably installed at the center of the top inside the outer shell 1.

[0033] A drive mechanism 6 is installed on one side of the top of the pole 5, which is mounted on the top of the inner side of the housing 1. The drive mechanism 6 includes a mounting plate 601 mounted on the top of the inner side of the housing 1. The mounting plate 601 has an L-shaped cross section. An active rod 604 is rotatably mounted on the inner side of the mounting plate 601. One end of the active rod 604 is fixedly connected to the output shaft of a second motor 603 mounted on the outer side of the mounting plate 601. An incomplete gear 6041 is mounted on the outer side of the active rod 604, which drives the active rod 604 to rotate through the second motor 603.

[0034] A driven rod 606 is rotatably mounted on the inner side of the mounting plate 601. An incomplete gear 6041 meshes with a complete gear 6061 fixed on the driven rod 606. The rotation of the driving rod 604 drives the driven rod 606 to rotate. A driving bevel gear 6062 is mounted on the end of the driven rod 606 away from the mounting plate 601. The driving bevel gear 6062 meshes with a driven bevel gear 602 fixed on the upright 5. The rotation of the driven rod 606 drives the upright 5 to rotate.

[0035] An incomplete gear 6042 is installed at the other end of the driving rod 604. A driven rod 605 is rotatably installed on the inner side of the mounting plate 601. A complete gear 6051 that meshes with the incomplete gear 6042 is installed at one end of the driven rod 605. The rotation of the driving rod 604 drives the driven rod 605 to rotate. An eccentric wheel 6052 is installed at the other end of the driven rod 605. The outer end face of the eccentric wheel 6052 abuts against the retaining ring 608 fixed to the top of the rotating rod 7. The rotation of the eccentric wheel 6052 squeezes the retaining ring 608 to slide downward. A limiting strip 701 is fixed to the inner side of the rotating rod 7. The limiting strip 701 is slidably connected in the limiting groove opened on the outer side of the upright 5. The limiting strip 701 and the limiting groove increase the rotational resistance between the rotating rod 7 and the upright 5, so that the rotating rod 7 rotates synchronously when the upright 5 rotates.

[0036] The outer side of incomplete gear 1 6041 has one-twelfth teeth, and the outer side of incomplete gear 2 6042 has one-quarter teeth. When the outer teeth of incomplete gear 1 6041 contact the complete gear 2 6061, the outer teeth of incomplete gear 2 6042 contact the complete gear 1 6051 for one-third of the time. When the outer teeth of incomplete gear 2 6042 contact the complete gear 1 6051 for one-third of the time, the brush plate 905 slides downward, and the brush detaches from a set of filter holes. When the outer teeth of gear 2 6042 are in contact with two-thirds of the complete gear 1 6051, the outer teeth of incomplete gear 1 6041 are in contact with complete gear 2 6061. The brush plate 905 rotates thirty degrees. When the outer teeth of incomplete gear 1 6041 are no longer in contact with complete gear 2 6061, the brush plate 905 rotates to below another set of filter holes. When the outer teeth of incomplete gear 2 6042 are no longer in contact with complete gear 1 6051, the brush of the brush plate 905 is inserted into another set of filter holes.

[0037] Both the first complete gear 6051 and the second complete gear 6061 have a pawl 6071 on one side that engages with them. The pawl 6071 corresponds to the forward rotation direction of the first complete gear 6051 and the second complete gear 6061. It is rotatably connected to the inner side of the mounting plate 601 by a fixing rod 607. The pawl 6071 is also elastically connected to the inner side of the mounting plate 601 by an arc spring 6072. The arc spring 6072 limits the pawl 6071 to prevent the first complete gear 6051 and the second complete gear 6061 from reversing.

[0038] A rotating rod 7 is fitted at the bottom of the upright 5, and a screening assembly 8 is provided at the upper end of the rotating rod 7. The screening assembly 8 includes a fixed plate 802 installed inside the upper part of the outer shell 1. The bottom of the fixed plate 802 is elastically connected to three layered screen plates 804 by two limiting springs 803. The fixed plate 802 serves to separate the internal cavity of the outer shell 1 and provide installation positions for the screen plates 804. The limiting springs 803 serve to buffer the upward pressing force of the screen plates 804 and realize the vibration of the screen plates 804. The fixed plate 802 and the three screen plates 804 are also movably fitted on the outside of the rotating rod 7, and the three screen plates 804 are fixedly connected by a connecting plate 805. The bottom of the screen plate 804 closest to the fixed plate 802 is fixedly connected to a disc 806. The bottom surface of the disc 806 has a ring array of multiple semi-circular protrusions, and the outer wall of the rotating rod 7 is close to the disc. A disc 801 is fixed at position 806. Discs 801 and 806 are movably sleeved on the outside of the rotating rod 7. The surface of disc 801 has a ring array of multiple semi-circular protrusions. The protrusions on discs 801 and 806 are spaced apart and form sliding contact. The protrusions on discs 801 and 806 increase the rotational resistance between them. When the protrusions on discs 801 and 806 are pressed together, disc 806 is subjected to compressive force and moves upward. A guide block 807 is fixed to the side of the screen plate 804 closest to the fixed plate 802. The guide block 807 is slidably connected in the guide groove opened in the inner wall of the outer shell 1. The guide block 807 and the guide groove limit the screen plate 804 and prevent the screen plate 804 from rotating due to the rotational resistance of the rotating rod 7.

[0039] The bottom of the rotating rod 7 is provided with a cleaning assembly 9 installed at the bottom of the outer casing 1. The cleaning assembly 9 includes a fixed cylinder 901 installed at the bottom of the outer casing 1, which is in communication with the outer casing 1. A filter plate 902 is installed on the top of the fixed cylinder 901, which is parallel to the inner bottom surface of the outer casing 1. When the lithium carbonate solid-liquid mixture inside the outer casing 1 is under pressure, it must first be filtered by the filter plate 902 before entering the fixed cylinder 901. Two brush plates 905 are symmetrically installed on the outer side of the rotating rod 7 near the bottom of the filter plate 902. Each brush is inserted into a filter hole in a ring array on the filter plate 902. There are twelve sets of filter holes. A brush on a brush plate 905 is inserted into a set of filter holes. A rotating plate 904 is elastically connected to the bottom inner side of the fixed cylinder 901 through a buffer spring 903. The top of the rotating plate 904 is rotatably connected to the bottom of the rotating rod 7. Two limiting rods 9041 are symmetrically installed on the outer side of the rotating plate 904 and are slidably connected to the fixed cylinder 901. The limiting rods 9041 limit the up and down sliding of the rotating plate 904 and prevent the rotating plate 904 from rotating due to the rotational force of the rotating rod 7.

[0040] A feed pipe 102 is connected to one side of the outer casing 1, through which a lithium carbonate solid-liquid mixture is poured into the interior of the outer casing 1. A water injection pipe 104 is also connected to one side of the outer casing 1, connecting to an external water pipe. An air inlet pipe 103 is connected to the output of an external compressor, injecting compressed air into the interior of the outer casing 1 to create pressure. A hot air pipe 105 is connected to the other side of the outer casing 1, connecting to the output of an external hot air blower, which delivers hot air into the interior of the outer casing 1 to dry the lithium carbonate inside. A drain pipe 9011 is connected to the bottom of the fixed cylinder 901, through which excess liquid is discharged. The filtered liquid has valves installed inside the feed pipe 102, air inlet pipe 103, water injection pipe 104, hot air pipe 105, and drain pipe 9011. The feed pipe 102, air inlet pipe 103, water injection pipe 104, hot air pipe 105, and drain pipe 9011 are opened and closed by the valves. The outer wall of the outer shell 1 has cleaning doors 101 corresponding to the positions of the fixed plate 802 and the three sieve plates 804. The corresponding cleaning doors 101 facilitate the removal of lithium carbonate from the fixed plate 802 and the three sieve plates 804 after screening. Two stirring rods 702 are symmetrically installed on the outside of the rotating rod 7 near the cleaning component 9. The stirring rods 702 are located at the lower end of the inner shell 1 and can stir the lithium carbonate solid-liquid mixture.

[0041] Working principle: In the first step, open the feed pipe 102 valve to inject the lithium carbonate solid-liquid mixture into the outer casing 1 through the feed pipe 102. Close the feed pipe 102 valve and start motor 603. Motor 603 drives the drive rod 604, incomplete gear 6041, and incomplete gear 6042 to rotate. The teeth of incomplete gear 6042 mesh with complete gear 6051, driving complete gear 6051 to rotate. Pawl 6071 slides on the tooth surface of complete gear 6051 and is limited by arc spring 6072. Complete gear 6051 drives driven rod 605 to rotate, driven rod 605 drives eccentric wheel 6052 to rotate. The point of eccentric wheel 6052 farthest from the axis gradually approaches and squeezes retaining ring 608. Retaining ring 608 drives rotating rod 7 to slide downward. Rotating rod 7 squeezes buffer spring 903 through rotating plate 904. Rotating rod 7 drives stirring rod 702, brush plate 905 and disc. As gear 801 slides downwards, the brush slides down through a set of filter holes on filter plate 902 and disengages. When the teeth of incomplete gear 6042 mesh with the teeth of complete gear 6051 for one-third of the time, eccentric wheel 6052 engages with retaining ring 608. At this point, the teeth of incomplete gear 6041 rotate to mesh with complete gear 6061, causing complete gear 6061 to rotate. The pawl 6071 on complete gear 6061 slides on the tooth surface of complete gear 6061. The movement is limited by the arc spring 6072. The second gear 6061 drives the driven rod 606 and the driving bevel gear 6062 to rotate. The driving bevel gear 6062 drives the driven bevel gear 602 to rotate. The driven bevel gear 602 drives the upright rod 5 to rotate. The upright rod 5 drives the rotating rod 7 to rotate through the frictional resistance between the limiting strip 701 and the slide groove. The rotating rod 7 drives the stirring rod 702, the brush plate 905 and the first disc 801 to rotate. The stirring rod 702 stirs the lithium carbonate solid-liquid mixture.

[0042] The second step is performed, and simultaneously, the brush plate 905 rotates from below one set of filter holes to below another set of filter holes. The teeth of the incomplete gear 1 6041 disengage from the complete gear 2 6061, and the complete gear 2 6061 stops rotating. The rebound force of one of the arc springs 6072 drives one of the pawls 6071 to fix the complete gear 2 6061. The eccentric wheel 6052 continues to rotate, and the point of the eccentric wheel 6052 farthest from the axis gradually moves away from the retaining ring 608. The compressive force on the retaining ring 608 decreases, and the rebound force of the buffer spring 903 drives... The rotating plate 904, rotating rod 7, and retaining ring 608 move upward. The rotating rod 7 drives the brush plate 905 to move upward. The brush is inserted into another set of filter holes. At this time, the teeth of the incomplete gear 2 6042 disengage from the complete gear 1 6051. The complete gear 1 6051 does not rotate. The rebound force of another arc spring 6072 drives another pawl 6071 to fix the complete gear 1 6051. The driving rod 604 continues to rotate. The above operation is repeated, causing the rotating rod 7, stirring rod 702, brush plate 905, and disc 1 801 to slide downward, rotate, and then slide upward.

[0043] Perform the third step: Open the valves of the air inlet pipe 103 and the drain pipe 9011. Connect the output end of the external compressor to the air inlet pipe 103 to inject compressed air into the housing 1. Liquid is filtered through the filter holes of the filter plate 902 and discharged from the drain pipe 9011. Solids are blocked by the filter plate 902 at the top. Close the valves of the air inlet pipe 103 and the drain pipe 9011. Then open the valve of the water inlet pipe 104 to connect the external water pipe to the water inlet pipe 104. Water enters the housing 1 from the water inlet pipe 104. Then open the air inlet pipe 103. 3. Open the drain pipe 9011 valve and the hot air pipe 105 valve, connect the output end of the external hot air blower to the hot air pipe 105, and the hot air enters the interior of the outer shell 1 through the hot air pipe 105 to dry the lithium carbonate solid. Start the motor 3, the motor 3 drives the outer shell 1 to flip, and the lithium carbonate solid falls from the filter plate 902 to the sieve plate 804. At the same time, the second protrusion on the disc 801 and the first protrusion on the disc 806 press and contact, driving the sieve plate 804 to press the limiting spring 803, causing the sieve plate 804 to vibrate and screen the lithium carbonate solid.

[0044] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0045] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lithium carbonate solid-liquid separation device, characterized in that, Includes a support plate (2), which has two sets. The two sets of support plates (2) are rotatably mounted on a housing (1) via a rotating shaft (4). One end of the rotating shaft (4) is fixedly connected to the output shaft of a motor (3) mounted on the support plate (2). A vertical rod (5) is rotatably mounted at the center of the top of the housing (1). A drive mechanism (6) is installed on the top side of the top of the vertical rod (5) and mounted on the top of the inner side of the housing (1). A rotating rod (7) is sleeved on the bottom of the vertical rod (5). A screening component (8) is provided at the upper end of the rotating rod (7). A cleaning component (9) is installed at the bottom of the housing (1). Two stirring rods (702) are symmetrically mounted on the outer side of the rotating rod (7) near the cleaning component (9). The drive mechanism (6) includes a mounting plate (601) installed on the top of the inner side of the housing (1). A drive rod (604) is rotatably mounted on the inner side of the mounting plate (601). One end of the drive rod (604) is fixedly connected to the output shaft of a second motor (603) installed on the outer side of the mounting plate (601). An incomplete gear (6041) is mounted on the outer side of the drive rod (604), and an incomplete gear (6042) is mounted on the other end of the drive rod (604). The inner side of the mounting plate (601) A driven rod (605) is also rotatably mounted. One end of the driven rod (605) is equipped with a complete gear (6051) that meshes with the incomplete gear (6042). The other end of the driven rod (605) is equipped with an eccentric wheel (6052). The outer end face of the eccentric wheel (6052) abuts against the retaining ring (608) fixed to the top of the rotating rod (7). A limit strip (701) is fixed to the inner side of the rotating rod (7). The limit strip (701) is slidably connected in the limit groove opened on the outer side of the upright (5). A driven rod two (606) is rotatably mounted on the inner side of the mounting plate (601). The incomplete gear one (6041) meshes with the complete gear two (6061) fixed on the driven rod two (606). A driving bevel gear (6062) is mounted on the end of the driven rod two (606) away from the mounting plate (601). The driving bevel gear (6062) meshes with the driven bevel gear (602) fixed on the upright (5). Both the first complete gear (6051) and the second complete gear (6061) are provided with a pawl (6071) on one side, which engages with the pawl (6071). The pawl (6071) is rotatably connected to the inner side of the mounting plate (601) via a fixing rod (607). The pawl (6071) is also elastically connected to the inner side of the mounting plate (601) via an arc spring (6072). The outer side of the incomplete gear one (6041) has one-twelfth teeth, and the outer side of the incomplete gear two (6042) has one-quarter teeth. When the outer teeth of the incomplete gear one (6041) contact the complete gear two (6061), the outer teeth of the incomplete gear two (6042) contact the complete gear one (6051) by one-third.

2. The lithium carbonate solid-liquid separation device according to claim 1, characterized in that, The screening assembly (8) includes a fixed plate (802) installed inside the upper part of the outer casing (1). The bottom of the fixed plate (802) is elastically connected to three layered screen plates (804) by two limiting springs (803). The fixed plate (802) and the three screen plates (804) are also movably sleeved on the outside of the rotating rod (7), and the three screen plates (804) are fixedly connected to each other by a connecting plate (805). The bottom of the screen plate (804) closest to the fixed plate (802) is fixedly connected to a second disc (806). The bottom surface of the second disc (806) has a ring array of multiple semi-circular shapes. The first protrusion is provided, and the first disk (801) is fixed on the outer wall of the rotating rod (7) near the second disk (806). The first disk (801) and the second disk (806) are also movably sleeved on the outside of the rotating rod (7). The surface of the first disk (801) has a ring array of multiple semi-circular protrusions. The protrusions on the first disk (801) and the second disk (806) are spaced apart and form a sliding contact. The side of the sieve plate (804) closest to the fixed plate (802) is fixed with a guide block (807). The guide block (807) is slidably connected in the guide groove opened in the inner wall of the outer shell (1).

3. The lithium carbonate solid-liquid separation device according to claim 2, characterized in that, The cleaning assembly (9) includes a fixed cylinder (901) installed at the bottom of the outer shell (1). The fixed cylinder (901) is in communication with the outer shell (1). A filter plate (902) is installed on the top of the fixed cylinder (901) and is parallel to the inner bottom surface of the outer shell (1). Two brush plates (905) are symmetrically installed on the outer side of the rotating rod (7) near the bottom of the filter plate (902). The brushes on the top of the brush plates (905) are inserted into the filter holes in the annular array on the filter plate (902). A rotating plate (904) is elastically connected to the inner bottom surface of the fixed cylinder (901) through a buffer spring (903). The top of the rotating plate (904) is rotatably connected to the bottom of the rotating rod (7). Two limiting rods (9041) that are slidably connected to the fixed cylinder (901) are symmetrically installed on the outer side of the rotating plate (904). A drain pipe (9011) is connected to the bottom of the fixed cylinder (901).

4. A lithium carbonate solid-liquid separation device according to claim 3, characterized in that, The outer wall of the outer shell (1) is provided with cleaning doors (101) corresponding to the positions of the fixing plate (802) and the three sieve plates (804). The diameter of the sieve holes in the three sieve plates (804) gradually decreases from bottom to top.

5. A lithium carbonate solid-liquid separation device according to claim 4, characterized in that, The outer shell (1) is connected to a feed pipe (102) on one side, a water injection pipe (104) on the other side, an air inlet pipe (103) on the other side, and a hot air pipe (105) on the other side.

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