Solid-liquid separation system for sodium molybdate production and separation method thereof

Abstract

The invention discloses a solid-liquid separation system for sodium molybdate production and a separation method thereof.The solid-liquid separation system comprises a separation box, a reciprocating compression plate is arranged in the separation box, a driving box is arranged at the top end of the separation box, the driving box outputs power to drive the reciprocating compression plate to horizontally reciprocate, and filter screens are arranged on the two sides of the separation box; liquid collecting tanks are arranged on the two sides of the separation box and located below the filter screen, discharge ports are formed in the two sides, close to the liquid collecting tanks, of the bottom end of the separation box, a sliding baffle is arranged below the separation box, and a through groove is formed between the two discharge ports. The separation system is compact and reasonable in structure, and all parts are scientific in layout. The reciprocating compression plate arranged in the separation box is ingeniously matched with the sliding baffle, the discharge outlet and the through groove, solid materials can be automatically discharged while solid-liquid separation is achieved, the equipment space is effectively saved, the occupied area is reduced, and the manufacturing cost and maintenance difficulty of the equipment are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of sodium molybdate production, and in particular to a solid-liquid separation system and a separation method for sodium molybdate production. Background Art

[0002] In the field of sodium molybdate production technology, solid-liquid separation is a key production link. Traditional solid-liquid separation systems and methods for sodium molybdate production have many disadvantages. On the one hand, most common separation equipment has unreasonable structural design, resulting in insufficient utilization of the internal space of the equipment, making the entire separation system bulky and complex in structure, which not only occupies a large amount of production space, but also increases the manufacturing cost and maintenance difficulty of the equipment.

[0003] On the other hand, the existing separation system has obvious deficiencies in separation efficiency. During the separation process, the extrusion and filtration methods of the material are not scientific enough, and it is difficult to fully separate the liquid from the solid in the material, resulting in the liquid after separation still containing more solid impurities, or too much liquid remaining in the solid, affecting the production quality and subsequent processing of sodium molybdate. At the same time, traditional equipment often lacks the ability of automatic discharge and continuous operation, and requires frequent manual operation, which consumes manpower and material resources and reduces production efficiency. In addition, the filter components are easily blocked by impurities after long-term use, and the existing equipment lacks an effective cleaning mechanism, requiring frequent shutdowns for manual cleaning, which further affects the continuity and efficiency of production. Therefore, it is of great practical significance and application prospects to develop a solid-liquid separation system and separation method for sodium molybdate production with reasonable design, compact structure, high separation efficiency, and automatic cleaning and continuous operation capabilities. Summary of the invention

[0004] In order to solve the problems mentioned in the above background technology, the present invention provides a solid-liquid separation system and a separation method for sodium molybdate production.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A solid-liquid separation system for sodium molybdate production comprises a separation box, wherein a reciprocating compression plate is arranged inside the separation box, a driving box is arranged at the top of the separation box, and the driving box outputs power to drive the reciprocating compression plate to move horizontally and reciprocatingly, filter screens are arranged on both sides of the separation box, liquid collecting tanks are arranged on both sides of the separation box below the filter screens, discharge ports are opened on both sides of the bottom of the separation box near the liquid collecting tank, a sliding baffle is arranged at the bottom of the separation box, a through slot is arranged between the two discharge ports, the bottom end of the reciprocating compression plate is in smooth contact with the top of the separation box, and the bottom end of the reciprocating compression plate is connected to the sliding baffle by a connecting block, and the width of the connecting block matches the through slot, and when the reciprocating compression plate is in the middle position, the two discharge ports are blocked.

[0006] Preferably, a drain pipe is provided on one side of the liquid collection tank away from the separation tank, a solid collection tank is provided directly below the separation tank, two sides at the top of the separation tank are respectively connected with a first feed inlet and a second feed inlet, the first feed inlet and the second feed inlet are connected to a material guiding pipe, and electric valves are installed on both the first feed inlet and the second feed inlet.

[0007] Preferably, two horizontally arranged guide rods are fixed inside the separation tank, guide holes corresponding to the reciprocating compression plate are formed on the reciprocating compression plate, and the guide rods penetrate through the reciprocating compression plate through the guide holes.

[0008] Preferably, drive discs are rotatably installed on both sides of the separation tank away from the liquid collection tank, a toggle column is fixed on one side of each of the two drive discs close to each other, toggle chutes are formed on both sides of the reciprocating compression plate close to the toggle columns, the toggle columns extend into the toggle chutes, and the positions of the two toggle columns are staggered from each other, and the drive box drives the two drive discs to rotate synchronously and in opposite directions.

[0009] Preferably, a horizontal rotating shaft and a drive motor are installed inside the drive box, a first straight gear is fixed on the output shaft of the drive motor, a second straight gear is fixed on the outside of the horizontal rotating shaft, the first straight gear meshes with the second straight gear, both ends of the horizontal rotating shaft extend to the outside of the drive box, and a first bevel gear is fixed.

[0010] Preferably, vertical rotating shafts are rotatably installed on both sides of the separation tank close to the drive discs through brackets, a second bevel gear is fixed at the top of each vertical rotating shaft, the conical surfaces of the two second bevel gears are in opposite directions, and the two second bevel gears respectively mesh with the two first bevel gears.

[0011] Preferably, a third bevel gear is fixed at the bottom end of each vertical rotating shaft, a fourth bevel gear is fixed on each drive disc, and the two third bevel gears respectively mesh with the two fourth bevel gears.

[0012] Preferably, a plurality of cleaning brushes are rotatably installed inside the separation tank near the filter screen, and the bristles of the cleaning brushes are in contact with the filter screen.

[0013] Preferably, the plurality of cleaning brushes are equidistantly distributed from top to bottom, and the rotating shafts of the cleaning brushes extend to the outside of the separation tank and are fixed with third straight gears, and the third straight gears mesh with each other.

[0014] Preferably, an incomplete toothed ring is fixed on one of the drive discs, the tooth distribution angle of the incomplete toothed ring is between ninety degrees and one hundred and twenty degrees, and a fourth straight gear is fixed on the rotating shaft of the cleaning brush near the middle position, the fourth straight gear meshes with the incomplete toothed ring correspondingly, and the positions of the third straight gear and the incomplete toothed ring are staggered from each other.

[0015] A solid-liquid separation method for sodium molybdate production includes the following steps: Step S1: Feeding Feed the material to be separated into the separation tank through the material guiding pipe, the first feed port and the second feed port, and control the feeding by using an electric valve.

[0016] Step S2: Solid-liquid separation Start the drive motor in the drive box, and the drive mechanism drives the reciprocating compression plate to move horizontally back and forth to squeeze the material. The liquid passes through the filter screen and flows into the liquid collection tank, while the solid remains.

[0017] Step S3: Liquid collection The liquid in the liquid collection tank is discharged through the drain pipe.

[0018] Step S4: Solid discharge When the reciprocating compression plate moves, one side discharge port is opened, and the solid falls into the collection tank; after returning to the middle position to block the discharge port, new material is added to the emptying side.

[0019] Step S5: Filter screen cleaning When the drive disc rotates, the incomplete gear ring drives the cleaning brush to rotate to clean the filter screen, and the reciprocating compression plate alternately cleans the filter screens on both sides when it moves.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The separation system of the present invention has a compact and reasonable structure, and the layout of each component is scientific. For example, the ingenious cooperation of the reciprocating compression plate, the sliding baffle, the discharge port and the through groove arranged in the separation tank can not only achieve solid-liquid separation, but also automatically complete the discharge of solid materials, effectively saving equipment space, reducing the floor area, and lowering the manufacturing cost and maintenance difficulty of the equipment.

[0021] 2. By driving the reciprocating compression plate to move horizontally back and forth through the drive box to squeeze the material, the efficiency and quality of solid-liquid separation are greatly improved. Compared with the traditional separation method, it can squeeze out the liquid in the material more fully, making the separated liquid have a lower solid content and less solid residue liquid, which is beneficial to improving the production quality of sodium molybdate and the convenience of subsequent processing.

[0022] 3. This system has the ability of automatic feeding, discharging and continuous operation. The material automatically enters the separation tank through the material guiding pipe and the electric valve, and the reciprocating movement of the reciprocating compression plate realizes the alternating pressure filtration and discharging of the materials on both sides, without frequent manual operation, which not only saves manpower and material resources, but also significantly improves the production efficiency and reduces the labor intensity.

[0023] 4. Multiple cleaning brushes installed near the filter screen inside the separation box achieve automatic cleaning of the filter screen through the meshing transmission between the incomplete tooth ring on the driving disc and the fourth spur gear and the third spur gear on the cleaning brush rotating shaft. During the reciprocating movement of the reciprocating compression plate, the filter screens on both sides are alternately cleaned, effectively preventing the filter screen from being blocked, ensuring the continuous and efficient operation of the separation system, reducing the number of shutdowns for cleaning, and improving the continuity of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is the right view of the present invention; Figure 2 is the first perspective three-dimensional view of the present invention; Figure 3 is the rear view of the present invention; Figure 4 is the second perspective three-dimensional view of the present invention; Figure 5 is the schematic diagram of the internal structure of the separation box of the present invention; Figure 6 is the exploded view of the mating relationship between the driving disc and the reciprocating compression plate of the present invention; Figure 7 is the schematic diagram of the mating relationship between the reciprocating compression plate and the sliding baffle of the present invention; Figure 8 is the main perspective cross-sectional view of the separation box of the present invention; In the figure: 1. Separation box; 101. Filter screen; 102. Liquid collection tank; 1021. Drain pipe; 103. First feed inlet; 1031. Electric valve; 104. Second feed inlet; 105. Material guiding pipe; 106. Driving disc; 1061. Poking column; 1062. Fourth bevel gear; 1063. Incomplete tooth ring; 107. Reciprocating compression plate; 1071. Poking chute; 1072. Sliding baffle; 108. Vertical rotating shaft; 1081. Second bevel gear; 1082. Third bevel gear; 109. Guide rod; 110. Discharge port; 111. Through groove; 2. Driving box; 201. Driving motor; 202. First spur gear; 203. Horizontal rotating shaft; 2031. Second spur gear; 2032. First bevel gear; 3. Cleaning brush; 301. Third spur gear; 302. Fourth spur gear; 4. Solid collection tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment 1

[0028] Referring to Figure 1-8 , a solid-liquid separation system for sodium molybdate production includes a separation tank 1. A reciprocating compression plate 107 is arranged inside the separation tank 1. A driving tank 2 is arranged at the top of the separation tank 1. The driving tank 2 outputs power to drive the reciprocating compression plate 107 to move horizontally back and forth. Filter meshes 101 are arranged on both sides of the separation tank 1. Liquid collecting tanks 102 are arranged below the filter meshes 101 on both sides of the separation tank 1. Discharge ports 110 are formed on both sides of the bottom of the separation tank 1 near the two sides of the liquid collecting tanks 102. A sliding baffle 1072 is arranged below the separation tank 1. A through groove 111 is arranged between the two discharge ports 110. The bottom end of the reciprocating compression plate 107 is in smooth contact with the top of the separation tank 1. The bottom end of the reciprocating compression plate 107 and the sliding baffle 1072 are connected by a connecting block, and the width of the connecting block matches the through groove 111. When the reciprocating compression plate 107 is in the middle position, both discharge ports 110 are blocked. When the reciprocating compression plate 107 moves horizontally back and forth, it can squeeze the materials on both sides. By increasing the pressure, the liquid in the materials can be filtered out through the filter mesh 101 and enter the liquid collecting tank 102, while the solids remain in the separation tank 1. Due to the presence of the sliding baffle 1072, the discharge ports 110 can be blocked. When the reciprocating compression plate 107 moves from the middle position towards one side of the filter mesh 101, the discharge port 110 on the far side will gradually open, so as to automatically discharge the internally squeezed and filtered solid materials. After the reciprocating compression plate 107 moves to the outermost edge position and returns to the middle position, the discharge port 110 is blocked again. At this time, new materials are added to the side where the solid materials were just discharged, and then the reciprocating compression plate 107 continues to move towards the side with the newly added materials for pressure filtration. At this time, the discharge port 110 on the side where the pressure filtration was completed previously opens to discharge the pressure-filtered solid materials. In this way, by repeating the cycle, continuous pressure filtration of the materials on both sides can be completed, and automatic discharging can be carried out after the pressure filtration is completed, which saves more space and improves the pressure filtration efficiency.

[0029] Among them, a liquid drain pipe 1021 is provided on the side of the liquid collecting tank 102 away from the separation box 1, a solid collecting tank 4 is provided directly below the separation box 1, and the first feed port 103 and the second feed port 104 are respectively connected to the two sides of the top of the separation box 1, and the first feed port 103 and the second feed port 104 are connected to the material guide pipe 105, and the first feed port 103 and the second feed port 104 are both installed with electric valves 1031; The liquid collected in the liquid collecting tank 102 is discharged through the drain pipe 1021, and the material to be filtered is introduced into the first feed port 103 and the second feed port 104 from the material guide pipe 105, and is added to the two sides of the reciprocating compression plate 107 in the separation box 1 through the first feed port 103 and the second feed port 104. When material needs to be added, open the electric valve 1031.

[0030] Among them, two horizontally arranged guide rods 109 are fixed inside the separation box 1, and a guide hole corresponding to the reciprocating compression plate 107 is opened on the reciprocating compression plate 107. The guide rod 109 penetrates the reciprocating compression plate 107 through the guide hole. When the equipment is running, the guide rod 109 provides a precise guide track for the movement of the reciprocating compression plate 107, so that the reciprocating compression plate 107 can make stable horizontal reciprocating movement along the axial direction of the guide rod 109 under the action of the driving device.

[0031] Example 2

[0032] Reference Figure 1-8 The difference between this embodiment and embodiment 1 is that the two sides of the separation box 1 away from the liquid collecting tank 102 are rotatably mounted with driving discs 106, and the sides of the two driving discs 106 close to each other are fixed with toggle posts 1061, and the two sides of the reciprocating compression plate 107 close to the toggle posts 1061 are provided with toggle slide grooves 1071, and the toggle posts 1061 extend into the toggle slide grooves 1071, and the positions of the two toggle posts 1061 are staggered, and the driving box 2 drives the two driving discs 106 to rotate synchronously in opposite directions; Since the two driving discs 106 rotate synchronously in opposite directions, and the two toggle posts 1061 are staggered up and down and inserted into the toggle slide grooves 1071 on both sides of the reciprocating compression plate 107, when the two driving discs 106 rotate, in conjunction with the horizontal guiding effect of the guide rod 109, the reciprocating compression plate 107 can be pushed to move in the same direction, and since the force points are on both sides of the reciprocating compression plate 107 and are symmetrically distributed up and down, the thrust on the reciprocating compression plate 107 can be shared, so that the force on the reciprocating compression plate 107 is more balanced when it moves, and it is not easy to deviate and rub.

[0033] In order to drive the two driving discs 106 to rotate synchronously and in opposite directions, a horizontal rotating shaft 203 and a driving motor 201 are installed in the driving box 2. A first straight gear 202 is fixed to the output shaft of the driving motor 201, and a second straight gear 2031 is fixed to the outside of the horizontal rotating shaft 203. The first straight gear 202 meshes with the second straight gear 2031. Both ends of the horizontal rotating shaft 203 extend to the outside of the driving box 2 and are fixed with first bevel gears 2032. When the driving motor 201 is started, the horizontal rotating shaft 203 can be driven to rotate through the meshing of the first straight gear 202 and the second straight gear 2031.

[0034] When the horizontal rotating shaft 203 rotates, the first bevel gears 2032 rotate. On both sides of the separation box 1 close to the driving discs 106, vertical rotating shafts 108 are rotatably installed through brackets. A second bevel gear 1081 is fixed to the top end of the vertical rotating shaft 108. The conical surfaces of the two second bevel gears 1081 are in opposite directions, and the two second bevel gears 1081 respectively mesh with the two first bevel gears 2032. By the meshing of the first bevel gears 2032 and the second bevel gears 1081, the two vertical rotating shafts 108 can be driven to rotate synchronously, and their rotation directions are the same.

[0035] A third bevel gear 1082 is fixed to the bottom end of the vertical rotating shaft 108, and a fourth bevel gear 1062 is fixed to the driving disc 106. The two third bevel gears 1082 respectively mesh with the two fourth bevel gears 1062. Since the two vertical rotating shafts 108 rotate synchronously and in the same direction, and the meshing relationships of the two pairs of third bevel gears 1082 and fourth bevel gears 1062 are opposite, the purpose of driving the two driving discs 106 to rotate synchronously and in opposite directions is achieved.

[0036] Embodiment 3

[0037] Refer to Figure 1-8 , the difference between this embodiment and Embodiment 1 is that a plurality of cleaning brushes 3 are rotatably installed inside the separation box 1 near the filter screen 101. The bristles of the cleaning brushes 3 are in contact with the filter screen 101. The plurality of cleaning brushes 3 are equidistantly distributed from top to bottom, and the rotating shafts of the cleaning brushes 3 extend to the outside of the separation box 1 and are fixed with third straight gears 301. The third straight gears 301 mesh with each other.

[0038] Among them, an incomplete tooth ring 1063 is fixed on one of the driving discs 106. The tooth distribution angle of the incomplete tooth ring 1063 is between 90 degrees and 120 degrees. A fourth spur gear 302 is fixed on the rotating shaft of the cleaning brush 3 near the middle position. The fourth spur gear 302 meshes with the incomplete tooth ring 1063 correspondingly. The position of the third spur gear 301 is staggered from that of the incomplete tooth ring 1063. When the driving disc 106 rotates and pushes the reciprocating compression plate 107 to move towards the right, the teeth of the incomplete tooth ring 1063 gradually rotate to the position of the fourth spur gear 302, and drive one of the cleaning brushes 3 to rotate through meshing. Then, the remaining cleaning brushes 3 are driven to rotate together through the meshing between the third spur gears 301. And with the reciprocating movement of the reciprocating compression plate 107, the cleaning brushes 3 on both sides can be driven to rotate alternately. When the reciprocating compression plate 107 moves to the right to filter the materials on its right side, it will drive the cleaning brush 3 on its left side to rotate and clean the left filter screen 101, thereby promoting the discharge of the solid materials on the left side and preparing for the next filtration. When the reciprocating compression plate 107 moves to the left, it will drive the cleaning brush 3 on the right side to rotate.

[0039] Example 4

[0040] A solid-liquid separation method for sodium molybdate production includes the following steps: Step S1: Feeding The material to be separated is fed into the separation tank 1 through the material guiding pipe, the first feed port 103 and the second feed port 104, and the feeding is controlled by the electric valve 1031.

[0041] Step S2: Solid-liquid separation Start the drive motor 201 in the drive box 2, and the drive mechanism drives the reciprocating compression plate 107 to move horizontally back and forth to squeeze the materials. The liquid passes through the filter screen 101 and flows into the liquid collection tank 102, and the solids are retained.

[0042] Step S3: Liquid collection The liquid in the liquid collection tank 102 is discharged through the drain pipe 1021.

[0043] Step S4: Solid discharge When the reciprocating compression plate 107 moves, one side of the discharge port is opened, and the solids fall into the collection tank; after returning to the middle position to block the discharge port 110, new materials are added to the emptying side.

[0044] Step S5: Filter screen cleaning When the driving disc 106 rotates, the incomplete tooth ring 1063 drives the cleaning brush 3 to rotate to clean the filter screen 101, and when the reciprocating compression plate 107 moves, it alternately cleans the filter screens 101 on both sides In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0045] In the present invention, unless otherwise clearly specified and defined, terms such as "set", "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] The control mode of the present invention is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The provision of power also belongs to the common knowledge in the art. And the present invention is mainly used to protect mechanical devices, so the control mode and circuit connection of the present invention will not be further explained in detail.

[0047] 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 solid-liquid separation system for sodium molybdate production, comprising a separation box (1), characterized in that: The separation box (1) is provided with a reciprocating compression plate (107) inside, and a driving box (2) is provided at the top of the separation box (1). The driving box (2) outputs power to drive the reciprocating compression plate (107) to move horizontally back and forth. Filter screens (101) are provided on both sides of the separation box (1). Liquid collecting grooves (102) are provided on both sides of the separation box (1) below the filter screens (101). Discharge ports (110) are provided on both sides of the bottom end of the separation box (1) near the liquid collecting grooves (102). A sliding baffle (1072) is provided below the separation box (1), a through slot (111) is provided between the two discharge ports (110), the bottom end of the reciprocating compression plate (107) is in smooth contact with the top end of the separation box (1), and the bottom end of the reciprocating compression plate (107) and the sliding baffle (1072) are connected via a connecting block, and the width of the connecting block matches the through slot (111), and when the reciprocating compression plate (107) is in the middle position, both discharge ports (110) are blocked.

2. A solid-liquid separation system for sodium molybdate production according to claim 1, characterized in that: A liquid discharge pipe (1021) is provided on a side of the liquid collecting tank (102) away from the separation box (1), a solid collecting tank (4) is provided directly below the separation box (1), and a first feed port (103) and a second feed port (104) are respectively connected to both sides of the top of the separation box (1), the first feed port (103) and the second feed port (104) are connected to a material guide pipe (105), and electric valves (1031) are installed on both the first feed port (103) and the second feed port (104).

3. A solid-liquid separation system for sodium molybdate production according to claim 1, characterized in that: Two horizontally arranged guide rods (109) are fixed inside the separation box (1), a guide hole corresponding to the reciprocating compression plate (107) is opened on the reciprocating compression plate (107), and the guide rods (109) penetrate the reciprocating compression plate (107) through the guide hole.

4. A solid-liquid separation system for sodium molybdate production according to claim 1, characterized in that: The separation box (1) has driving discs (106) rotatably mounted on both sides away from the liquid collecting tank (102); a toggle post (1061) is fixed to the sides of the two driving discs (106) close to each other; a toggle slide groove (1071) is provided on both sides of the reciprocating compression plate (107) close to the toggle post (1061); the toggle post (1061) extends into the toggle slide groove (1071); and the positions of the two toggle posts (1061) are staggered; the driving box (2) drives the two driving discs (106) to rotate synchronously in opposite directions.

5. A solid-liquid separation system for sodium molybdate production according to claim 4, characterized in that: A horizontal rotating shaft (203) and a driving motor (201) are installed in the driving box (2); a first spur gear (202) is fixed to the output shaft of the driving motor (201); a second spur gear (2031) is fixed to the outside of the horizontal rotating shaft (203); the first spur gear (202) is meshed with the second spur gear (2031); both ends of the horizontal rotating shaft (203) extend to the outside of the driving box (2) and are fixed with a first bevel gear (2032).

6. A solid-liquid separation system for sodium molybdate production according to claim 5, characterized in that: Vertical rotating shafts (108) are rotatably mounted on both sides of the separation box (1) close to the driving disc (106) via brackets, and a second bevel gear (1081) is fixed to the top of the vertical rotating shaft (108). The conical surfaces of the two second bevel gears (1081) are in opposite directions, and the two second bevel gears (1081) are respectively meshed with the two first bevel gears (2032).

7. A solid-liquid separation system for sodium molybdate production according to claim 6, characterized in that: A third bevel gear (1082) is fixed to the bottom end of the vertical rotating shaft (108), a fourth bevel gear (1062) is fixed to the driving disc (106), and the two third bevel gears (1082) are respectively meshed with the two fourth bevel gears (1062).

8. A solid-liquid separation system for sodium molybdate production according to claim 1, characterized in that: A plurality of cleaning brushes (3) are rotatably mounted inside the separation box (1) near the filter screen (101), the bristles of the cleaning brushes (3) are in contact with the filter screen (101), the plurality of cleaning brushes (3) are evenly spaced from top to bottom, and the rotating shafts of the cleaning brushes (3) extend to the outside of the separation box (1) and are fixed with third spur gears (301), and the third spur gears (301) are meshed with each other.

9. A solid-liquid separation system for sodium molybdate production according to claim 8, characterized in that: An incomplete toothed ring (1063) is fixed on one of the driving discs (106), the tooth distribution angle of the incomplete toothed ring (1063) is between ninety degrees and one hundred and twenty degrees, and a fourth spur gear (302) is fixed on the rotating shaft of the cleaning brush (3) near the middle position, the fourth spur gear (302) is meshed with the incomplete toothed ring (1063), and the positions of the third spur gear (301) and the incomplete toothed ring (1063) are staggered.

10. A solid-liquid separation method for sodium molybdate production, using a solid-liquid separation system for sodium molybdate production as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step S1: Feeding Feeding the material to be separated into the separation box (1) through the material guide pipe, the first feed port (103) and the second feed port (104), and controlling the feed by using the electric valve (1031); Step S2: Solid-liquid separation The driving motor (201) in the driving box (2) is started, and the driving mechanism drives the reciprocating compression plate (107) to reciprocate horizontally to squeeze the material, and the liquid flows through the filter screen (101) into the liquid collecting tank (102), and the solid is retained; Step S3: Liquid collection The liquid in the liquid collecting tank (102) is discharged through the liquid discharge pipe (1021); Step S4: Solids Discharge When the reciprocating compression plate (107) moves, the discharge port on one side opens and the solid falls into the collection tank; after returning to the middle position to block the discharge port (110), new material is added to the emptying side; Step S5: Filter cleaning When the driving disc (106) rotates, the incomplete toothed ring (1063) drives the cleaning brush (3) to rotate, thereby cleaning the filter screen (101), and when the reciprocating compression plate (107) moves, the filter screens (101) on both sides are cleaned alternately.

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