An alkali washing circulating tank for F142b production

Abstract

The utility model relates to F142b production technical field, and disclose a kind of caustic wash circulating tank for F142b production, including caustic wash frame and filter screen cylinder, caustic wash frame left side is equipped with the control valve being connected with discharge pipe, right side is communicated with internal caustic wash tank by feed pipe, top hinged frame door is convenient to maintain, servo motor in caustic wash frame right end motor groove, power transmission is carried out to the bevel gear four of drive assembly's bevel gear one, bevel gear two, transmission shaft and bevel gear three, the bevel gear four of drive shaft, drive shaft top end penetrates caustic wash frame and filter screen cylinder fixed, drive it to rotate in caustic wash tank, make material and caustic soda fully mixed cleaning, filter screen cylinder cylindrical surface V-shaped filter hole can intercept impurity, its bottom positioning cylinder cooperates with drive shaft top end waterproof pad, ensure stable operation, steel ball between drive shaft and fixed cylinder reduces friction, improves efficiency, after cleaning, qualified material and caustic soda are discharged through control valve and discharge pipe, realize efficient circulating operation.

Description

Technical Field

[0001] This utility model relates to the field of F142b production technology, specifically to an alkaline washing circulation tank for F142b production. Background Technology

[0002] In the production process of F142b, the alkaline washing process is a key step to ensure product quality. Alkaline washing effectively removes impurities and neutralizes acidic substances through full contact between the alkaline solution and the material, ensuring the purity and performance of F142b products. At the same time, the alkaline washing circulation tank, as the core equipment carrying out the alkaline washing process, directly affects production efficiency and product quality through its operating efficiency and stability. An efficient and stable alkaline washing circulation tank helps to achieve continuous and efficient production and reduce production costs. Therefore, the development of a high-performance alkaline washing circulation tank is crucial for the production of F142b. However, traditional alkaline washing circulation tanks for F142b production have drawbacks. On the one hand, their filter structure design is unreasonable, resulting in poor impurity interception and making it difficult to meet the purity standards of the cleaned materials, thus affecting product quality. On the other hand, the transmission system has poor stability and high frictional resistance between components, which not only leads to high energy consumption but also to frequent failures. Frequent maintenance also increases downtime and reduces production efficiency. In addition, the spatial layout of traditional equipment lacks rationality, and the installation of components and power transmission are limited, making it difficult to meet the growing demand for high quality and high efficiency in F142b production. Therefore, we propose an alkaline washing circulation tank for F142b production. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an alkaline washing circulation tank for F142b production, which solves the aforementioned problems.

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution: an alkaline washing circulation tank for F142b production, comprising: The alkali washing rack and filter cylinder are provided. A control valve is provided at the left end of the alkali washing rack, and a discharge pipe is provided on the control valve. An alkali washing tank is opened on the left side of the alkali washing rack, and a filter cylinder is installed inside the alkali washing tank. The alkali washing tank is connected to the control valve. A feed pipe is provided on the right side of the alkali washing rack, and the feed pipe is connected to the alkali washing tank. A rack door is hinged to the top of the alkali washing rack and is located above the alkali washing tank. A servo motor is installed inside the right end of the alkaline washing rack. A bevel gear one is sleeved on the output shaft of the servo motor. A bevel gear two is provided on the left side of the servo motor. A transmission shaft is installed inside the alkaline washing rack. Bevel gear three is sleeved on both sides of the transmission shaft. The bevel gear two meshes with the bevel gear one and the bevel gear three on the right side of the transmission shaft, respectively. A drive assembly is installed inside the alkaline washing rack. The drive assembly includes a drive shaft and a bevel gear four. The bevel gear four is sleeved on the cylindrical surface of the drive shaft and meshes with the bevel gear three on the left side of the drive shaft. The top end of the drive shaft extends through the alkaline washing rack into the interior of the alkaline washing tank and is fixedly connected to the filter screen cylinder by a nut.

[0005] Preferably, the top left side of the alkaline washing rack has an annular alkaline washing tank, the inside of the alkaline washing rack has a movable cavity that is connected to the bottom of the alkaline washing tank, the right end of the alkaline washing rack has a motor slot, the left side of the motor slot has a placement hole that is located between the motor slot and the movable cavity.

[0006] Preferably, a fixed cylinder is fixed to the bottom of the alkaline washing tank. The inner cylindrical surface of the fixed cylinder has an annular steel groove. The fixed cylinder is located above the movable cavity and is in communication with the movable cavity.

[0007] Preferably, a servo motor and an auxiliary shaft are respectively arranged inside the motor slot. The auxiliary shaft is located on the left side of the servo motor and is fixed inside the motor slot. The auxiliary shaft is fitted with a second bevel gear, and the output shaft of the servo motor is fitted with a first bevel gear. The second bevel gear and the first bevel gear mesh with each other.

[0008] Preferably, the drive shaft is inserted into the interior of the alkaline washing rack through a placement hole, and bevel teeth three are respectively sleeved on both sides of the drive shaft, wherein the bevel teeth three on the right side of the drive shaft mesh with bevel teeth two, and the bevel teeth three on the left side of the drive shaft are disposed inside the movable cavity.

[0009] Preferably, the drive assembly consists of a drive shaft and a bevel gear four. The bevel gear four is sleeved on the bottom cylindrical surface of the drive shaft. The bevel gear four and the drive shaft are disposed inside the movable cavity, and the bevel gear four meshes with the bevel gear three on the left side of the drive shaft.

[0010] Preferably, a second annular steel groove is formed on the outer cylindrical surface of the top of the drive shaft, and a waterproof annular pad is fixed to the top of the drive shaft. The second steel groove is located inside the waterproof annular pad, and a connecting column is fixed to the top of the waterproof annular pad.

[0011] Preferably, the waterproof pad at the top of the drive shaft is fitted onto the fixed cylinder, and the bottom of the drive shaft is located inside the movable cavity, wherein the second steel groove corresponds to the first steel groove, and steel balls are provided between the first steel groove and the second steel groove and are in frictional engagement, and the connecting post at the top of the waterproof pad is located inside the alkaline washing tank.

[0012] Preferably, a positioning cylinder is fixed at the bottom of the filter screen cylinder. The filter screen cylinder is set inside the alkaline washing tank, and the positioning cylinder is sleeved on the waterproof gasket. The connecting column passes through the positioning cylinder and is fixed by a nut. The waterproof gasket is tightly attached to the bottom of the alkaline washing tank and rotates to engage. The cylindrical surface of the filter screen cylinder has multiple sets of V-shaped filter holes.

[0013] Compared with the prior art, this utility model provides an alkaline washing circulation tank for F142b production, which has the following beneficial effects: 1. The F142b production alkaline washing circulation tank features multiple sets of V-shaped filter holes on the cylindrical surface of the filter cylinder, which can accurately intercept material impurities, ensuring the high purity of the material after washing and effectively improving product quality. The servo motor drives the filter cylinder to rotate stably in the alkaline washing tank through a transmission system composed of various bevel teeth, drive shaft, and drive shaft, promoting thorough mixing of material and alkali solution, greatly improving cleaning efficiency. The rolling friction of steel balls between the drive shaft and the fixed cylinder significantly reduces rotational resistance, not only extending the service life of the equipment but also improving operational stability and energy efficiency. The hinged door at the top of the alkaline washing rack facilitates quick opening and removal of the filter cylinder for cleaning impurities, making maintenance convenient and efficient. The rationally arranged movable chamber, motor slot, and placement holes provide a stable installation space and smooth power transmission path for each component, ensuring long-term stable and efficient operation of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the structure of this utility model; Figure 3 This is a cross-sectional schematic diagram of the alkaline washing rack structure of this utility model; Figure 4 This is a schematic diagram of the filter cylinder structure of this utility model; Figure 5 This is a cross-sectional view of the drive shaft structure of this utility model.

[0015] In the diagram: 1. Discharge pipe; 2. Control valve; 3. Alkali washing rack; 4. Feed pipe; 5. Servo motor; 6. Bevel gear one; 7. Auxiliary shaft; 8. Bevel gear two; 9. Bevel gear three; 10. Transmission shaft; 11. Drive shaft; 12. Bevel gear four; 13. Steel ball; 14. Filter screen cylinder; 15. Rack door; 16. Motor slot; 17. Placement hole; 18. Movable cavity; 19. Fixed cylinder; 20. Steel trough one; 21. Alkali washing tank; 22. Positioning cylinder; 23. Steel trough two; 24. Waterproof pad; 25. Connecting column. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-5 An alkaline washing circulation tank for F142b production, comprising: The alkaline washing rack 3 and the filter cylinder 14 are provided. The left end of the alkaline washing rack 3 is equipped with a control valve 2 and a discharge pipe 1. An alkaline washing tank 21 is opened on the left side of the alkaline washing rack 3. The filter cylinder 14 is installed inside the alkaline washing tank 21. The alkaline washing tank 21 is connected to the control valve 2. The right side of the alkaline washing rack 3 is equipped with a feed pipe 4 and is connected to the alkaline washing tank 21. A rack door 15 is hinged to the top of the alkaline washing rack 3 and is located above the alkaline washing tank 21. A servo motor 5 is installed inside the right end of the alkaline washing rack 3. A bevel gear 6 is sleeved on the output shaft of the servo motor 5. A bevel gear 8 is installed on the left side of the servo motor 5. A transmission shaft 10 is installed inside the alkaline washing rack 3. A bevel gear 9 is sleeved on both sides of the transmission shaft 10. The bevel gear 8 meshes with the bevel gear 6 and the bevel gear 9 on the right side of the transmission shaft 10, respectively. The drive assembly located inside the alkaline washing rack 3 includes a drive shaft 11 and a bevel gear 12. The bevel gear 12 is sleeved on the cylindrical surface of the drive shaft 11 and meshes with the bevel gear 9 on the left side of the transmission shaft 10. The top end of the drive shaft 11 extends through the alkaline washing rack 3 into the interior of the alkaline washing tank 21 and is fixedly connected to the filter screen cylinder 14 by a nut.

[0018] Furthermore, an annular alkaline washing tank 21 is provided on the top left side of the alkaline washing rack 3. An active cavity 18 is provided inside the alkaline washing rack 3. The active cavity 18 is connected to the bottom of the alkaline washing tank 21. A motor slot 16 is provided on the right end of the alkaline washing rack 3. A placement hole 17 is provided on the left side of the motor slot 16. The placement hole 17 is located between the motor slot 16 and the active cavity 18, providing a space basis for the installation of various components and power transmission.

[0019] Furthermore, a fixed cylinder 19 is fixed to the bottom of the alkaline washing tank 21. The inner cylindrical surface of the fixed cylinder 19 has an annular steel groove 20. The fixed cylinder 19 is located above the movable cavity 18 and is interconnected with the movable cavity 18, providing a support and cooperation structure for the installation and rotation of the drive shaft 11.

[0020] Furthermore, a servo motor 5 and an auxiliary shaft 7 are respectively installed inside the motor slot 16. The auxiliary shaft 7 is located on the left side of the servo motor 5 and is fixed inside the motor slot 16. The auxiliary shaft 7 is fitted with a second bevel tooth 8, and the output shaft of the servo motor 5 is fitted with a first bevel tooth 6. The second bevel tooth 8 and the first bevel tooth 6 mesh with each other to form the initial link of power transmission.

[0021] Furthermore, the drive shaft 10 is inserted into the alkaline washing rack 3 through the placement hole 17, and bevel teeth 9 are respectively sleeved on both sides of the drive shaft 10. The bevel teeth 9 on the right side of the drive shaft 10 mesh with bevel teeth 8, and the bevel teeth 9 on the left side of the drive shaft 10 are set inside the movable cavity 18 to realize the transmission of power from the motor slot 16 to the movable cavity 18.

[0022] Furthermore, the drive assembly consists of a drive shaft 11 and a bevel gear 12. The bevel gear 12 is fitted on the bottom cylindrical surface of the drive shaft 11. The bevel gear 12 and the drive shaft 11 are located inside the movable cavity 18, and the bevel gear 12 meshes with the bevel gear 9 on the left side of the transmission shaft 10 to transmit power to the drive shaft 11.

[0023] Furthermore, a ring-shaped steel groove 23 is provided on the outer cylindrical surface of the top of the drive shaft 11. A ring-shaped waterproof pad 24 is fixed to the top of the drive shaft 11. The steel groove 23 is located inside the waterproof pad 24. A connecting column 25 is fixed to the top of the waterproof pad 24 to prepare for cooperation with the fixed cylinder 19 and connection with the filter cylinder 14, and to play a waterproof role through the waterproof pad 24.

[0024] Furthermore, the waterproof pad 24 at the top of the drive shaft 11 is sleeved on the fixed cylinder 19, and the bottom of the drive shaft 11 is located inside the movable cavity 18. The second steel channel 23 corresponds to the first steel channel 20. Steel balls 13 are provided between the first steel channel 20 and the second steel channel 23 and are in frictional engagement. The connecting post 25 at the top of the waterproof pad 24 is located inside the alkaline washing tank 21, so that when the drive shaft 11 rotates, it drives the filter cylinder 14 to rotate and reduces resistance.

[0025] Furthermore, a positioning cylinder 22 is fixed to the bottom of the filter cylinder 14. The filter cylinder 14 is set inside the alkaline washing tank 21, and the positioning cylinder 22 is sleeved on the waterproof gasket 24. The connecting column 25 passes through the positioning cylinder 22 and is fixed by a nut. The waterproof gasket 24 is tightly attached to the bottom of the alkaline washing tank 21 and rotates to engage. The cylindrical surface of the filter cylinder 14 has multiple sets of V-shaped filter holes to achieve stable installation and filtration function in the alkaline washing tank 21.

[0026] Structural Description: Discharge pipe 1: Discharge pipe 1 is a pipe structure that connects to control valve 2 and is used to discharge the cleaned material and alkali solution in alkaline washing tank 21 to realize the material output function; Control valve 2: Control valve 2 is installed at the left end of the alkaline washing rack 3 and connected to the discharge pipe 1. By controlling its opening and closing, the material discharge is regulated to ensure that the discharge process is controllable. Alkali washing rack 3: Alkali washing rack 3 is an integral load-bearing structure, with an internal alkali washing tank 21, movable cavity 18, etc., providing installation space and operating foundation for each component; Feed pipe 4: Feed pipe 4 connects the right side of the alkaline washing rack 3 to the alkaline washing tank 21, and is the channel for materials to enter the alkaline washing tank 21, ensuring smooth material input; Servo motor 5: Servo motor 5 is placed in the motor slot 16 at the right end of the alkaline washing rack 3, and serves as a power source to provide power for the operation of the equipment through bevel gear transmission; Bevel gear 16: Bevel gear 16 is fitted onto the output shaft of servo motor 5 and meshes with bevel gear 28. It is a key transmission component in the power transmission initiation stage. Auxiliary shaft 7: The auxiliary shaft 7 is fixed inside the motor slot 16 to the left side of the servo motor 5, and is fitted with bevel gear 8 to assist in the initial transmission and conversion of power. Bevel gear 28: Bevel gear 28 is installed on auxiliary shaft 7 and meshes with bevel gear 16 and bevel gear 39, playing a role in power transmission; Bevel gear 39: Bevel gear 39 is fitted on both sides of the drive shaft 10 and meshes with bevel gear 28 and bevel gear 412 respectively to realize power transmission relay; Drive shaft 10: Drive shaft 10 passes through alkaline washing frame 3, and bevel teeth 39 on both sides participate in the transmission, transmitting power from motor slot 16 to drive component in movable cavity 18; Drive shaft 11: Drive shaft 11 is located in the movable cavity 18, and the top is connected to the filter screen cylinder 14. It drives the filter screen cylinder 14 to rotate in the alkaline washing tank 21 through bevel gear transmission. Bevel gear 4 12: Bevel gear 4 12 is fitted at the bottom of drive shaft 11 and meshes with bevel gear 3 9 on the left side of transmission shaft 10 to transmit power to drive shaft 11; Steel ball 13: Steel ball 13 is placed between the steel groove 20 of the fixed cylinder 19 and the steel groove 23 of the drive shaft 11, and the rotational resistance of the drive shaft 11 is reduced by rolling friction; Filter cylinder 14: The filter cylinder 14 is located inside the alkaline washing tank 21, and its bottom is connected to the drive shaft 11. The cylindrical V-shaped filter holes achieve material filtration. Door 15: Door 15 is hinged to the top of the alkaline washing rack 3 and located above the alkaline washing tank 21, making it easy to open and clean the impurities trapped inside the filter screen cylinder 14; Motor slot 16: Motor slot 16 is located at the right end of alkaline washing rack 3 and is used to install servo motor 5 and auxiliary shaft 7, providing installation space for power source; Placement hole 17: The placement hole 17 is located between the motor slot 16 and the movable cavity 18, through which the drive shaft 10 passes, and is a key channel for the power transmission path; Movable cavity 18: The movable cavity 18 is located inside the alkaline washing rack 3 and is connected to the alkaline washing tank 21. It is used to accommodate the drive components and ensure power transmission and component operation. Fixed cylinder 19: Fixed cylinder 19 is fixed to the bottom of alkaline washing tank 21. The inner wall steel groove 20 cooperates with drive shaft 11 to provide support and rotation structure for drive shaft 11. Steel channel 1 20: Steel channel 1 20 is opened on the inner wall of the fixed cylinder 19 and corresponds to steel channel 23 of the drive shaft 11, and works with steel ball 13 to achieve low resistance rotation; Alkaline washing tank 21: Alkaline washing tank 21 is located inside the alkaline washing rack 3 on the left side. It is the core area for mixing and washing materials with alkaline solution and carries the main processing function. Positioning cylinder 22: The positioning cylinder 22 is fixed to the bottom of the filter cylinder 14, and is fitted with a waterproof gasket 24. It works with the connecting column 25 to achieve stable installation of the filter cylinder 14. Steel channel 23: Steel channel 23 is opened at the top of the drive shaft 11 and corresponds to steel channel 20 of the fixed cylinder 19. The rotational friction is reduced by steel ball 13. Waterproof pad 24: The waterproof pad 24 is fixed to the top of the drive shaft 11 and sleeved with the fixing cylinder 19, which is both waterproof and assists in the installation and rotation of the filter cylinder 14; Connecting post 25: The connecting post 25 is fixed to the top of the waterproof pad 24, passes through the positioning cylinder 22 and is fixed to the filter cylinder 14, so as to realize the connection between the drive shaft 11 and the filter cylinder 14.

[0027] Working principle: During operation, the material flows into the alkaline washing tank 21 inside the alkaline washing frame 3 through the feed pipe 4. The alkaline washing tank 21 is the core processing area, and the filter cylinder 14 inside it plays a key filtering role. The cylindrical surface of the filter cylinder 14 has multiple sets of V-shaped filter holes, which can effectively intercept impurities in the material and ensure the purity of the material after washing. In terms of power transmission, the servo motor 5, which is located in the motor slot 16 inside the right end of the alkaline washing frame 3, provides power to the entire system. After the servo motor 5 starts, the cone sleeve on its output shaft... When bevel gear 6 begins to rotate, it meshes with bevel gear 8, which is sleeved on auxiliary shaft 7, transmitting power to auxiliary shaft 7. Auxiliary shaft 7 then meshes with bevel gear 9 on the right side of transmission shaft 10, driving transmission shaft 10 to rotate. Bevel gear 9 on the left side of transmission shaft 10 meshes with bevel gear 12, which is sleeved on the cylindrical surface of drive shaft 11 in the drive assembly, thereby causing drive shaft 11 to rotate. The rotation of drive shaft 11 is crucial. Its top end extends through alkaline washing frame 3 into the interior of alkaline washing tank 21 and is fixedly connected to filter screen cylinder 14 by a nut. When the drive shaft 11 rotates, it drives the filter screen cylinder 14 to rotate within the alkaline washing tank 21. During rotation, the material inside the filter screen cylinder 14 comes into full contact with and mixes with the alkaline solution, achieving efficient cleaning. Simultaneously, steel balls 13 are positioned between the steel groove 23 on the bottom cylindrical surface of the drive shaft 11 and the steel groove 20 on the inner cylindrical surface of the fixed cylinder 19. Through the rolling friction of the steel balls 13, the resistance during the rotation of the drive shaft 11 is reduced, improving the stability and efficiency of the equipment operation. After cleaning, the alkaline solution and impurities in the material are contained within the filter screen cylinder 14. Under filtration, impurities are trapped inside the filter cylinder 14, while the alkali solution and the washed material can be discharged through the discharge pipe 1 via the control valve 2 connected to the alkali washing tank 21. When it is necessary to clean the impurities inside the filter cylinder 14, the frame door 15 hinged to the top of the alkali washing rack 3 can be opened to easily and quickly remove the filter cylinder 14 for cleaning. Throughout the process, the internal structure of the alkali washing rack 3, such as the movable cavity 18, motor slot 16, and placement hole 17, provides a reasonable spatial layout for the installation of various components and power transmission, ensuring stable and efficient operation of the equipment.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An alkaline washing circulation tank for F142b production, characterized in that, include: Alkali washing rack (3) and filter cylinder (14). A control valve (2) is provided at the left end of the alkali washing rack (3). A discharge pipe (1) is provided on the control valve (2). An alkali washing tank (21) is opened on the left side inside the alkali washing rack (3). A filter cylinder (14) is provided inside the alkali washing tank (21). The alkali washing tank (21) is connected to the control valve (2). A feed pipe (4) is provided on the right side of the alkali washing rack (3). The feed pipe (4) is connected to the alkali washing tank (21). A rack door (15) is hinged to the top of the alkali washing rack (3). The rack door (15) is located above the alkali washing tank (21). A servo motor (5) is installed inside the right end of the alkaline washing rack (3). A bevel gear (6) is sleeved on the output shaft of the servo motor (5). A bevel gear (8) is installed on the left side of the servo motor (5). A transmission shaft (10) is installed inside the alkaline washing rack (3). A bevel gear (9) is sleeved on both sides of the transmission shaft (10). The bevel gear (8) meshes with the bevel gear (6) and the bevel gear (9) on the right side of the transmission shaft (10). The drive assembly is located inside the alkaline washing rack (3). The drive assembly includes a drive shaft (11) and a bevel gear (12). The bevel gear (12) is sleeved on the cylindrical surface of the drive shaft (11) and meshes with the bevel gear (9) on the left side of the transmission shaft (10). The top end of the drive shaft (11) extends through the alkaline washing rack (3) into the interior of the alkaline washing tank (21) and is fixedly connected to the filter cylinder (14) by a nut.

2. The alkaline washing circulation tank for F142b production according to claim 1, characterized in that, The alkaline washing rack (3) has an annular alkaline washing tank (21) on the top left side. The alkaline washing rack (3) has an active cavity (18) inside. The active cavity (18) is connected to the bottom of the alkaline washing tank (21). The alkaline washing rack (3) has a motor slot (16) on the right side. The motor slot (16) has a placement hole (17) on the left side. The placement hole (17) is located between the motor slot (16) and the active cavity (18).

3. The alkaline washing circulation tank for F142b production according to claim 2, characterized in that, The bottom of the alkaline washing tank (21) is fixed with a fixed cylinder (19). The inner cylindrical surface of the fixed cylinder (19) is provided with an annular steel groove (20). The fixed cylinder (19) is located above the movable cavity (18) and is in communication with the movable cavity (18).

4. The alkaline washing circulation tank for F142b production according to claim 3, characterized in that, The motor slot (16) is equipped with a servo motor (5) and an auxiliary shaft (7). The auxiliary shaft (7) is located on the left side of the servo motor (5) and is fixed inside the motor slot (16). The auxiliary shaft (7) is fitted with a bevel gear (8).

5. The alkaline washing circulation tank for F142b production according to claim 2, characterized in that, The drive shaft (10) is inserted through the placement hole (17) inside the alkaline washing rack (3), and bevel teeth three (9) are respectively sleeved on both sides of the drive shaft (10). The bevel teeth three (9) on the right side of the drive shaft (10) meshes with bevel teeth two (8), and the bevel teeth three (9) on the left side of the drive shaft (10) is located inside the movable cavity (18).

6. The alkaline washing circulation tank for F142b production according to claim 1, characterized in that, The drive assembly consists of a drive shaft (11) and a bevel gear four (12). The bottom of the drive shaft (11) is fitted with a bevel gear four (12). The bevel gear four (12) and the drive shaft (11) are located inside the movable cavity (18), and the bevel gear four (12) meshes with the bevel gear three (9) on the left side of the transmission shaft (10).

7. The alkaline washing circulation tank for F142b production according to claim 6, characterized in that, The drive shaft (11) has an annular steel groove (23) on its outer side. The top of the drive shaft (11) is provided with a ring-shaped waterproof pad (24). The steel groove (23) is located inside the waterproof pad (24). A connecting column (25) is fixed to the top of the waterproof pad (24).

8. The alkaline washing circulation tank for F142b production according to claim 7, characterized in that, The waterproof pad (24) at the top of the drive shaft (11) is sleeved on the fixed cylinder (19), and the bottom of the drive shaft (11) is located inside the movable cavity (18). The second steel groove (23) corresponds to the first steel groove (20). A steel ball (13) is provided between the first steel groove (20) and the second steel groove (23) and friction fits. The connecting column (25) at the top of the waterproof pad (24) is located inside the alkaline washing tank (21).

9. The alkaline washing circulation tank for F142b production according to claim 8, characterized in that, The filter cylinder (14) has a positioning cylinder (22) fixed at the bottom inside. The filter cylinder (14) is set inside the alkaline washing tank (21), and the positioning cylinder (22) is sleeved on the waterproof pad (24). The connecting column (25) passes through the positioning cylinder (22) and is fixed by a nut. The waterproof pad (24) is tightly attached to the bottom inside the alkaline washing tank (21) and rotates to engage. The cylindrical surface of the filter cylinder (14) has multiple sets of V-shaped filter holes.

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