Solvent recovery treatment device for fipronil production

Abstract

The invention relates to the technical field of solvent recovery treatment, in particular to a solvent recovery treatment device for fipronil production, which comprises a frame body, a tower body, a plurality of tower plates, a driving assembly and an overturning assembly, the frame body is of a frame type structure and plays a supporting role, the tower body comprises a pair of barrels, an activity chamber and two groups of tension springs, in order to realize automatic filler replacement and uniform filler distribution, the tower plate is turned over through the feeding and discharging assembly, so that waste falls into the discharging hopper, then the filler is lifted to a high position and falls into the tower plate, automatic filler replacement can be realized, and the filler replacement efficiency is improved. And in addition, during feeding, the movable chamber can descend firstly, then quickly ascend and instantly stop through the driving assembly, so that the filler accumulated in the tower plate is thrown upwards and then randomly falls onto a dense net of the tower plate, the filler can be uniformly distributed by repeating for multiple times, and the treatment quality is improved.

Description

Technical Field

[0001] This invention relates to the field of solvent recovery and treatment technology, and specifically to a solvent recovery and treatment device for fipronil production. Background Technology

[0002] Fipronil is a pesticide (insecticide) produced using organic solvents such as acetone, acetonitrile, and toluene. These solvents act as "reaction media," helping the raw materials react chemically to produce fipronil, but they themselves do not participate in the formation of the final product. These solvents are expensive, and direct discharge after the reaction would cause serious water pollution. Therefore, they must be recycled and treated before being discharged to reduce production costs and prevent environmental pollution.

[0003] In solvent recovery and treatment, the distillation column, as the core purification equipment, has the core function of physically separating waste solvent containing impurities into "clean solvent" that meets purity standards and can be reused in production. Simultaneously, it retains difficult-to-separate impurities at the bottom of the column for subsequent processing. The trays, as key separation units within the distillation column, have packing material that is the core carrier for gas-liquid mass transfer. By increasing the gas-liquid contact area and enhancing turbulence, they significantly enhance the separation and purification effect. However, after long-term use, the packing material is prone to clogging, corrosion, or efficiency decline, making replacement a persistent challenge in industrial operation and maintenance.

[0004] Existing technologies already contain relevant improvements, such as the solvent distillation apparatus for chemical waste treatment described in Chinese Patent Publication No. CN119977042B. This apparatus includes a frame, mounting boxes, and a column body. Two mounting boxes are connected to the frame, and the column body is mounted on both boxes, with the mounting boxes communicating with the column body. However, while this approach achieves automated replacement of the tray packing, it still has significant shortcomings: Firstly, it is difficult to ensure uniform distribution of new packing material on the tray surface during automated replacement, leading to uneven gas-liquid contact and directly affecting distillation purity. Secondly, the scraping method used to remove old packing material easily causes it to spill into the column body, contaminating the solvent to be treated, reducing distillation quality, and increasing equipment cleaning and maintenance costs. Summary of the Invention

[0005] The purpose of this invention is to provide a solvent recovery and treatment device for fipronil production, which can automatically replace the packing material, ensure uniform distribution of the packing material, and prevent the old packing material from spilling out.

[0006] To achieve this objective, the present invention adopts the following technical solution: A solvent recovery and treatment device for fipronil production is provided, including a frame structure that provides support, a tower body, multiple trays, a drive assembly, and a tilting assembly. The tower body includes a pair of cylindrical bodies, a movable chamber, and two sets of tension springs. The two cylindrical bodies pass through and are slidably connected to the top and bottom walls of the movable chamber, respectively. The top cylindrical body passes through and is fixedly connected to the top wall of the frame, and the bottom cylindrical body passes through and is fixedly connected to the bottom wall of the frame. The movable chamber is a hollow columnar structure. The two sets of tension springs are located around the two cylindrical bodies, and their ends are fixedly connected to the outer periphery of the cylindrical bodies and the outer periphery of the movable chamber, respectively. The trays are bucket-shaped structures with slots at the top. A dense mesh is fixedly installed in the slots of the trays. The trays are rotatably installed in the movable chamber via the tilting assembly. One end of the tray passes through and is slidably connected to the movable chamber. The drive assembly is installed on the frame and is used to drive the movable chamber to move vertically.

[0007] Preferably, the drive assembly includes a lever, a stop lever, a connecting plate, a rotating seat, and a locking mechanism. The bottom of the rotating seat is fixedly connected to the frame, the connecting plate is fixedly connected to one side of the movable chamber, one end of the lever is rotatably connected to the inner wall of the rotating seat, and the other end of the lever has slots at the top and bottom. The inner wall of the slot is in contact with one side of the connecting plate. The stop lever has the same structure as the lever and is rotatably mounted on the rotating seat. The locking mechanism is used to lock the lever and the stop lever.

[0008] Preferably, the drive assembly further includes a first motor, a drive shaft, an electric slide table, and a guide rail. The bottom of the guide rail is fixedly connected to the frame, the electric slider is slidably connected to the periphery of the guide rail, the bottom of the first motor is fixedly connected to the electric slide table, the output shaft of the first motor is coaxially connected to one end of the drive shaft, the other end of the drive shaft has a multi-faceted prism structure, one end of the lever has a through ratchet groove, and the drive shaft is inserted into the ratchet groove.

[0009] Preferably, the locking mechanism includes a sliding sleeve, a limiting rod, and a first spring. The bottom of the sliding sleeve is fixedly connected to the frame. One end of the limiting rod passes through the side wall of the sliding sleeve and is slidably connected to it. The other end of the limiting rod has a polygonal prism structure and is inserted into a ratchet groove. The first spring is located inside the sliding sleeve and its two ends are fixedly connected to the inner wall of the sliding sleeve and the limiting rod, respectively.

[0010] Preferably, the drive shaft and the limiting rod are coaxially arranged, and a ball bearing is rotatably connected to one end of the drive shaft, with the ball bearing abutting against one end of the limiting rod.

[0011] Preferably, the tilting assembly includes a second motor, multiple sprockets, and multiple sealing mechanisms. The second motor is fixedly connected to the side wall of the active chamber, and the output shaft of the second motor is coaxially connected to one of the sprockets. The multiple sprockets are driven by a chain. A cam shaft is fixedly connected to the bottom of the tower plate. The cam shaft passes through the side wall of the active chamber and is rotatably connected to it. The sprockets are coaxially connected to the cam shaft. The sealing mechanism is installed in the active chamber and is used to ensure the airtightness of the active chamber.

[0012] Preferably, one end of the active chamber has multiple U-shaped grooves, the inner wall of the U-shaped grooves is in contact with the tower plate, and the sealing mechanism includes a baffle, a telescopic rod and a second spring. The baffle is slidably connected to one end of the active chamber, the top of the baffle abuts against the bottom of the tower plate, the bottom of the telescopic rod is fixedly connected to the active chamber, the telescopic end of the telescopic rod is fixedly connected to the bottom of the baffle, and the second spring is sleeved on the periphery of the telescopic rod. The two ends of the second spring are fixedly connected to the active chamber and the baffle respectively.

[0013] Preferably, it also includes a loading and unloading assembly, which includes a loading pipe, an auger, a third motor, and a material box. The material box is fixedly connected to the frame, the bottom of the loading pipe passes through the top wall of the material box and is fixedly connected to it, the auger is rotatably connected to the inner wall of the loading pipe and fits against each other, the third motor is fixedly connected to the frame, and the output shaft of the third motor passes through the top wall of the loading pipe and is coaxially connected to the auger.

[0014] Preferably, one end of the feeding pipe is connected to multiple branch pipes, and the feeding and unloading assembly also includes multiple feed pipes and multiple vertical plates. The vertical plates are fixedly connected to one end of the movable chamber, the feed pipes pass through the vertical plates and are connected to the movable chamber, the feed pipes and branch pipes are both arranged at an angle, the feed pipes are located above the tower plate and are equipped with electrically controlled valves on the outside, and the branch pipes are slidably connected to the grooves on the vertical plates.

[0015] Preferably, the loading and unloading assembly also includes multiple hoppers located below the tower plate. The multiple hoppers are stacked vertically and connected to each other, with the bottom hopper passing through the bottom wall of the frame and fixedly connected to it.

[0016] The beneficial effects of this invention are: 1. This invention uses a loading and unloading assembly to lift the packing material to a high position and drop it into the tower plate. After the processing is completed, the tower plate with a bucket-shaped structure is driven to flip by a flipping assembly, so that the waste material falls into the unloading hopper, which can realize automatic packing material replacement and collection.

[0017] 2. During the feeding process, the present invention drives the moving chamber to descend first, then rise rapidly and stop instantly, so that the packing material accumulated in the tray is thrown upward and then randomly falls onto the mesh of the tray. After repeated operation, the packing material can be evenly distributed, thus improving the processing quality.

[0018] 3. When discharging waste, the present invention drives the moving chamber to slowly rise and then quickly descend, so that the waste in the tower plate is slowly lifted, pauses briefly under inertia and then falls back onto the tower plate. This not only increases the discharge speed, but also uses inertia to separate the packing from the tower plate, preventing the packing from getting stuck on the tower plate. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments of the present invention will be briefly described below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0022] Figure 3 This is a schematic diagram of the tower structure of the present invention.

[0023] Figure 4 This is a split view of the tower structure of the present invention.

[0024] Figure 5 This is a cross-sectional view of the activity room structure of the present invention.

[0025] Figure 6 yes Figure 2 Enlarged view of the structure at point A in the middle.

[0026] Figure 7 This is a schematic diagram of the drive component structure of the present invention.

[0027] Figure 8 This is a structural breakdown diagram of the driving component of the present invention.

[0028] Figure 9 yes Figure 5 Enlarged view of the structure at point A in the middle.

[0029] Figure 10 This is a structural breakdown diagram of the loading and unloading assembly of the present invention.

[0030] Figure 11 yes Figure 4 Enlarged view of the structure at point A in the middle.

[0031] In the picture: 1. Frame; 10. Tower body; 100. Cylinder; 101. Activity chamber; 1010. U-shaped groove; 102. Tension spring; 11. Tower plate; 110. Convex shaft; 2. Drive assembly; 20. Lever; 200. Slot; 201. Ratchet; 21. Stop bar; 22. Connecting plate; 23. Rotary seat; 24. First motor; 25. Drive shaft; 26. Electric slide; 27. Guide rail; 28. Ball bearing; 3. Tilting assembly; 30. Second motor; 31. Sprocket; 32. Sealing mechanism; 320. Baffle; 321. Telescopic rod; 322. Second spring; 4. Locking mechanism; 40. Sliding sleeve; 41. Limiting rod; 42. First spring; 5. Loading and unloading assembly; 50. Loading pipe; 500. Branch pipe; 51. Screwdriver; 52. Third motor; 53. Material box; 54. Feed pipe; 55. Vertical plate; 56. Electrically controlled valve; 57. Discharge hopper. Detailed Implementation

[0032] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0034] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0035] In the description of this invention, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating a connection between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] like Figures 1 to 11 As shown: A solvent recovery and treatment device for fipronil production includes a frame 1, which is a frame structure providing support. It also includes a tower body 10, multiple trays 11, a drive assembly 2, and a tilting assembly 3. The tower body 10 includes a pair of cylindrical bodies 100, a movable chamber 101, and two sets of tension springs 102. The two cylindrical bodies 100 pass through and are slidably connected to the top and bottom walls of the movable chamber 101, respectively. The top cylindrical body 100 passes through and is fixedly connected to the top wall of the frame 1, and the bottom cylindrical body 100 passes through and is fixedly connected to the bottom wall of the frame 1. The chamber 101 is a hollow columnar structure. Two sets of tension springs 102 are located on the periphery of the two cylinders 100 respectively. The two ends of the tension springs 102 are fixedly connected to the periphery of the cylinder 100 and the periphery of the movable chamber 101 respectively. The tower plate 11 is a bucket-shaped structure with a through groove on the top. A dense mesh is fixedly installed in the through groove of the tower plate 11. The tower plate 11 can be rotatably installed in the movable chamber 101 through the flipping component 3. One end of the tower plate 11 passes through the movable chamber 101 and is slidably connected to it. The drive component 2 is installed on the frame 1 and is used to drive the movable chamber 101 to move vertically.

[0037] When recovering the solvent used in fipronil production, the solvent is introduced from the bottom of the column 10 and heated to evaporate it. The vapor rises and passes through the packing in the column 11, allowing for full gas-liquid contact. Finally, the vapor is re-condensed at the top of the column 10 and collected, thus completing the distillation. When replacing the packing in the column 11, the column 11 is first rotated by the tilting assembly 3, causing one end to rotate downwards in the U-shaped groove 1010, which pushes the sealing mechanism 32 to open. At this time, the packing slides down the inclined column 11 into the feed hopper 57. Simultaneously, the drive assembly 2 works, pushing the movable chamber 101 to slide vertically along the cylinder 100. The movable chamber 101 first rises slowly and then quickly descends to reset. The column 11 moves synchronously with the movable chamber 101, allowing the remaining packing inside to detach from the mesh on the column 11 under inertia and slide smoothly, thus preventing material jamming.

[0038] Then, the tray 11 is rotated and reset, and new packing is sprinkled into the tray 11 through the feed pipe 54, causing the drive component 2 to work again. First, the moving chamber 101 is slowly lowered, and then quickly raised and reset. Through inertia, the packing in the tray 11 is thrown up backward and then falls randomly. After repeated multiple times, the packing can be evenly distributed on the mesh, thereby improving the distillation quality and packing efficiency while realizing automatic material replacement, and also preventing the packing from spilling out.

[0039] like Figures 2 to 8 As shown: The drive assembly 2 includes a lever 20, a stop lever 21, a connecting plate 22, a rotating seat 23, and a locking mechanism 4. The bottom of the rotating seat 23 is fixedly connected to the frame 1, and the connecting plate 22 is fixedly connected to one side of the movable chamber 101. One end of the lever 20 is rotatably connected to the inner wall of the rotating seat 23, and the other end of the lever 20 has slots 200 at the top and bottom. The inner wall of the slots 200 is in contact with one side of the connecting plate 22. The stop lever 21 has the same structure as the lever 20 and is rotatably mounted on the rotating seat 23. The locking mechanism 4 is used to lock the lever 20 and the stop lever 21.

[0040] The drive assembly 2 also includes a first motor 24, a drive shaft 25, an electric slide 26, and a guide rail 27. The bottom of the guide rail 27 is fixedly connected to the frame 1, and the electric slider is slidably connected to the periphery of the guide rail 27. The bottom of the first motor 24 is fixedly connected to the electric slide 26. The output shaft of the first motor 24 is coaxially connected to one end of the drive shaft 25. The other end of the drive shaft 25 has a multi-faceted prism structure. One end of the lever 20 has a through ratchet groove 201, and the drive shaft 25 is inserted into the ratchet groove 201.

[0041] The locking mechanism 4 includes a sliding sleeve 40, a limiting rod 41, and a first spring 42. The bottom of the sliding sleeve 40 is fixedly connected to the frame 1. One end of the limiting rod 41 passes through the side wall of the sliding sleeve 40 and is slidably connected to it. The other end of the limiting rod 41 is a polygonal prism structure and is inserted into the ratchet groove 201. The first spring 42 is located inside the sliding sleeve 40 and its two ends are fixedly connected to the inner wall of the sliding sleeve 40 and the limiting rod 41, respectively.

[0042] The drive shaft 25 and the limit rod 41 are coaxially arranged. One end of the drive shaft 25 is rotatably connected to a ball bearing 28, and the ball bearing 28 and one end of the limit rod 41 abut against each other.

[0043] In operation, lever 20 and stop lever 21 are positioned above and below connecting plate 22, respectively, with connecting plate 22 fitting against the inner wall of slot 200 to prevent tower body 10 from shaking. During material change, limit lever 41 is inserted into stop lever 21, preventing it from rotating. Simultaneously, stop lever 21 presses against the lower edge of connecting plate 22. Then, the first motor 24 is activated, its output shaft driving drive shaft 25 to rotate. Drive shaft 25 is inserted into lever 20. As lever 20 rotates, it presses against the lower edge of connecting plate 22 and lifts upward, causing movable chamber 101 to rise slowly. At this time, the tension spring 102 at the bottom is further stretched. Since tension spring 102 is always in a stretched state, when lever 20 separates from connecting plate 22, tension spring 102 rebounds, causing movable chamber 101 to drop instantly. Connecting plate 22 descends and impacts stop lever 21, bringing movable chamber 101 to a stop. The packing in the tray 11 is first lifted, then comes to rest and falls back onto the tray 11. Through inertia, the packing adhering to the tray 11 is separated and discharged.

[0044] The tray 11 is rotated and reset, then new packing is injected, causing the electric slide 26 to operate, driving the first motor 24 to move horizontally along the guide rail 27, pushing the drive shaft 25 into the ratchet groove 201 on the stop bar 21, and pushing out the limit bar 41, causing the limit bar 41 to slide along the sliding sleeve 40. The first spring 42 is compressed. At this time, as the drive shaft 25 rotates, the stop bar 21 and the lever 20 rotate synchronously, causing them to switch directions. Then the drive shaft 25 retracts from the stop bar 21, the first spring 42 rebounds and pushes the limit bar 41 to reset, and then the lever 20 rotates in the opposite direction, first pressing down the movable chamber 101. When the lever 20 separates from the connecting plate 22, the tension spring 102 rebounds and causes the movable chamber 101 to rise instantaneously and hit the stop bar 21 through the connecting plate 22 to stop, causing the packing in the tray 11 to be thrown upward under inertia, thus achieving uniform packing after multiple repetitions.

[0045] like Figures 3 to 9 As shown: The tilting assembly 3 includes a second motor 30, multiple sprockets 31, and multiple sealing mechanisms 32. The second motor 30 is fixedly connected to the side wall of the active chamber 101. The output shaft of the second motor 30 is coaxially connected to one of the sprockets 31. The multiple sprockets 31 are driven by chains. A cam shaft 110 is fixedly connected to the bottom of the tower plate 11. The cam shaft 110 passes through the side wall of the active chamber 101 and is rotatably connected to it. The sprockets 31 are coaxially connected to the cam shaft 110. The sealing mechanism 32 is installed in the active chamber 101 and is used to ensure the airtightness of the active chamber 101.

[0046] The activity chamber 101 has multiple U-shaped grooves 1010 at one end. The inner wall of the U-shaped grooves 1010 is in contact with the tower plate 11. The sealing mechanism 32 includes a baffle 320, a telescopic rod 321, and a second spring 322. The baffle 320 is slidably connected to one end of the activity chamber 101. The top of the baffle 320 abuts against the bottom of the tower plate 11. The bottom of the telescopic rod 321 is fixedly connected to the activity chamber 101. The telescopic end of the telescopic rod 321 is fixedly connected to the bottom of the baffle 320. The second spring 322 is sleeved around the telescopic rod 321. The two ends of the second spring 322 are fixedly connected to the activity chamber 101 and the baffle 320, respectively.

[0047] The second motor 30 is activated, and its output shaft drives one of the sprockets 31 and the cam shaft 110 to rotate, causing the tray 11 to rotate. Simultaneously, through chain transmission between the sprockets 31, multiple trays 11 rotate synchronously. The end of the tray 11 extending to the outside of the movable chamber 101 slides downwards within the U-shaped groove 1010. This presses against the baffle 320, causing it to slide down. The baffle 320 compresses the second spring 322, while the telescopic rod 321 shortens, causing the tray 11 to rotate from a horizontal position to an inclined position, thus emptying its internal packing. Combined with the up-and-down shaking of the movable chamber 101, this achieves rapid and high-quality packing emptying. The bucket-shaped structure of the tray 11 also prevents packing spillage. The inner wall of the horizontal tray 11 is in close contact with the inner wall of the U-shaped groove 1010, and the baffle 320 is in close contact with the bottom of the tray 11, sealing the U-shaped groove 1010 and ensuring the airtightness of the tower body 10.

[0048] like Figures 4 to 11 As shown: It also includes a loading and unloading assembly 5, which includes a loading pipe 50, an auger 51, a third motor 52, and a material box 53. The material box 53 is fixedly connected to the frame 1. The bottom of the loading pipe 50 passes through the top wall of the material box 53 and is fixedly connected to it. The auger 51 is rotatably connected to the inner wall of the loading pipe 50 and fits against each other. The third motor 52 is fixedly connected to the frame 1. The output shaft of the third motor 52 passes through the top wall of the loading pipe 50 and is coaxially connected to the auger 51.

[0049] One end of the feeding pipe 50 is connected to multiple branch pipes 500. The feeding and unloading assembly 5 also includes multiple feed pipes 54 and multiple vertical plates 55. The vertical plate 55 is fixedly connected to one end of the movable chamber 101. The feed pipe 54 passes through the vertical plate 55 and is connected to the movable chamber 101. The feed pipe 54 and the branch pipes 500 are both arranged at an angle. The feed pipe 54 is located above the tower plate 11 and is equipped with an electrically controlled valve 56 on its periphery. The branch pipe 500 is slidably connected to the groove on the vertical plate 55.

[0050] The loading and unloading assembly 5 also includes multiple unloading hoppers 57, which are located below the tower plate 11. The multiple unloading hoppers 57 are stacked vertically and connected to each other. The unloading hopper 57 at the bottom passes through the bottom wall of the frame 1 and is fixedly connected to it.

[0051] New packing material is poured into the hopper 53, activating the third motor 52. Its output shaft drives the auger 51 to rotate within the feed pipe 50. The friction between the auger 51 and the inner wall of the feed pipe 50 lifts the packing material in the hopper 53 upwards. When the packing material passes through the branch pipe 500, the electrically controlled valve 56 opens, allowing the packing material to slide from the inclined branch pipe 500 into the feed pipe 54 and finally fall onto the tray 11, completing the feeding process. The electrically controlled valve 56 is then closed to prevent steam leakage. During the vertical movement of the movable chamber 101, the branch pipe 500 slides within the groove of the baffle 320, preventing excess packing material from spilling out of the feed pipe 500. When discharging waste material, the packing material slides from the tray 11 into the discharge hopper 57. The material flows through multiple vertically stacked discharge hoppers 57 and finally falls downwards into the container, completing the discharge collection.

[0052] It should be stated that the above-described specific embodiments are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to the present invention. However, such variations, as long as they do not depart from the spirit of the present invention, should be within the scope of protection of the present invention. Furthermore, some terminology used in this specification and claims is not limiting, but merely for the purpose of clearly describing the positional relationships and functions of the components.

Claims

1. A solvent recovery treatment device for fipronil production, comprising a frame body (1) which is a frame structure and serves as a support, characterized in that, The tower body (10) comprises a pair of cylinders (100), a movable chamber (101) and two groups of tension springs (102), the two cylinders (100) are respectively connected with the top wall and the bottom wall of the movable chamber (101) in a sliding mode, the cylinder (100) at the top is connected with the top wall of the frame body (1) in a fixed mode, the cylinder (100) at the bottom is connected with the bottom wall of the frame body (1) in a fixed mode, the movable chamber (101) is in a hollow columnar structure, the two groups of tension springs (102) are respectively arranged at the periphery of the two cylinders (100), the two ends of the tension spring (102) are fixedly connected with the periphery of the cylinder (100) and the periphery of the movable chamber (101), the tower plate (11) is in a bucket-shaped structure with a through slot formed in the top, the tower plate (11) is fixedly provided with a dense net in the through slot, the tower plate (11) is rotatably arranged in the movable chamber (101) through the overturning assembly (3), one end of the tower plate (11) penetrates through the movable chamber (101) and is connected with the movable chamber (101) in a sliding mode, and the driving assembly (2) is arranged on the frame body (1) and used for driving the movable chamber (101) to move vertically.

2. The solvent recovery treatment device for fipronil production according to claim 1, characterized by, The driving assembly (2) comprises a driving rod (20), a blocking rod (21), a connecting plate (22), a rotating seat (23) and a locking mechanism (4), the bottom of the rotating seat (23) is fixedly connected with the frame body (1), the connecting plate (22) is fixedly connected with one side of the movable chamber (101), one end of the driving rod (20) is rotatably connected with the inner wall of the rotating seat (23), the other end of the driving rod (20) is provided with a clamping groove (200) at the top and the bottom, the inner wall of the clamping groove (200) is attached to one side of the connecting plate (22), the blocking rod (21) is the same in structure as the driving rod (20), the blocking rod (21) is rotatably arranged on the rotating seat (23), and the locking mechanism (4) is used for locking the driving rod (20) and the blocking rod (21).

3. The solvent recovery treatment device for fipronil production according to claim 2, characterized by The driving assembly (2) further comprises a first motor (24), a driving shaft (25), an electric sliding table (26) and a guide rail (27), the bottom of the guide rail (27) is fixedly connected with the frame body (1), the electric sliding block is connected with the periphery of the guide rail (27) in a sliding mode, the bottom of the first motor (24) is fixedly connected with the electric sliding table (26), the output shaft of the first motor (24) is coaxially connected with one end of the driving shaft (25), the other end of the driving shaft (25) is in a polygonal columnar structure, one end of the driving rod (20) is provided with a penetrating ratchet-shaped groove (201), and the driving shaft (25) is insertedly connected with the ratchet-shaped groove (201).

4. The solvent recovery treatment device for fipronil production according to claim 3, characterized by The locking mechanism (4) comprises a sliding sleeve (40), a limiting rod (41) and a first spring (42), the bottom of the sliding sleeve (40) is fixedly connected with the frame body (1), one end of the limiting rod (41) penetrates through the side wall of the sliding sleeve (40) and is connected with the sliding sleeve (40) in a sliding mode, the other end of the limiting rod (41) is in a polygonal columnar structure and is insertedly connected with the ratchet-shaped groove (201), and the first spring (42) is arranged in the sliding sleeve (40) and has two ends fixedly connected with the inner wall of the sliding sleeve (40) and the limiting rod (41).

5. The solvent recovery treatment apparatus for fipronil production according to claim 4, characterized by The driving shaft (25) is coaxially arranged with the limiting rod (41), and a ball (28) is rotatably connected to one end of the driving shaft (25), and the ball (28) and one end of the limiting rod (41) abut each other.

6. The solvent recovery treatment device for fipronil production according to claim 1, characterized by The turnover assembly (3) comprises a second motor (30), a plurality of chain wheels (31) and a plurality of sealing mechanisms (32). The second motor (30) is fixedly connected to the side wall of the movable chamber (101), and the output shaft of the second motor (30) is coaxially connected with one of the chain wheels (31). The plurality of chain wheels (31) are driven by a chain. The tower plate (11) is fixedly connected with a protruding shaft (110) at the bottom. The protruding shaft (110) penetrates through the side wall of the movable chamber (101) and is rotatably connected thereto. The chain wheel (31) is coaxially connected with the protruding shaft (110). The sealing mechanism (32) is installed in the movable chamber (101) and is used to ensure the air tightness of the movable chamber (101).

7. The solvent recovery treatment apparatus for fipronil production according to claim 6, characterized by A plurality of U-shaped grooves (1010) are formed in one end of the movable chamber (101), and the inner wall of the U-shaped groove (1010) abuts against the tower plate (11). The sealing mechanism (32) comprises a baffle (320), an extension rod (321) and a second spring (322). The baffle (320) is slidably connected to one end of the movable chamber (101), and the top of the baffle (320) abuts against the bottom of the tower plate (11). The bottom of the extension rod (321) is fixedly connected to the movable chamber (101), and the extension end of the extension rod (321) is fixedly connected to the bottom of the baffle (320). The second spring (322) is sleeved around the extension rod (321), and the two ends of the second spring (322) are fixedly connected to the movable chamber (101) and the baffle (320) respectively.

8. The solvent recovery treatment apparatus for fipronil production according to claim 1, characterized by The feeding and discharging assembly (5) further comprises a feeding pipe (50), an auger (51), a third motor (52) and a material box (53). The material box (53) is fixedly connected to the frame body (1). The bottom of the feeding pipe (50) penetrates through the top wall of the material box (53) and is fixedly connected thereto. The auger (51) is rotatably connected to the inner wall of the feeding pipe (50) and abuts against the inner wall. The third motor (52) is fixedly connected to the frame body (1), and the output shaft of the third motor (52) penetrates through the top wall of the feeding pipe (50) and is coaxially connected with the auger (51).

9. The solvent recovery treatment apparatus for fipronil production according to claim 8, characterized by The feeding pipe (50) is connected with a plurality of branch pipes (500) at one end. The feeding and discharging assembly (5) further comprises a plurality of feeding pipes (54) and a plurality of vertical plates (55). The vertical plate (55) is fixedly connected to one end of the movable chamber (101). The feeding pipe (54) penetrates through the vertical plate (55) and is connected to the movable chamber (101). The feeding pipe (54) and the branch pipe (500) are both arranged obliquely. The feeding pipe (54) is located above the tower plate (11) and is provided with an electric control valve (56) around. The branch pipe (500) is slidably connected with the groove on the vertical plate (55).

10. The solvent recovery treatment apparatus for fipronil production according to claim 9, characterized by The feeding and discharging assembly (5) further comprises a plurality of discharging hoppers (57). The discharging hoppers (57) are located below the tower plate (11). The plurality of discharging hoppers (57) are vertically stacked and connected to each other. The bottom discharging hopper (57) penetrates through the bottom wall of the frame body (1) and is fixedly connected thereto.

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