Indoxacarb finished product crystallization method

Abstract

The present invention discloses an indoxacarb finished product crystallization method, which comprises a crystallization cylinder mechanism, a lifting cover plate mechanism, a crystallization plate mechanism, a driving mechanism and a collection disc, and during use, a mixed solution of indoxacarb and an organic solvent is poured into a crystallization chamber, the indoxacarb finished product with the mass being 3-5% of the mass of the reaction liquid is added as a seed crystal, and the seed crystal is crystallized; a pipeline valve on a feeding pipe is opened, the feeding pipe and a refrigerating fluid conveying pipe are connected, refrigerating fluid is conveyed into a material distributing piece through a pipeline pump machine and conveyed into a crystallization plate mechanism through a first material distributing hole and a second material distributing hole, and the first pump machine and the second pump machine are started to enable the refrigerating fluid to circulate between a circulating refrigerating pipe and a material distributing channel of the material distributing piece; the temperature of the surface of the crystallization plate shell is rapidly reduced, indoxacarb crystals are separated out on the surface of the crystallization plate shell, the temperature of the surface of the crystallization plate shell is rapidly reduced by accurately controlling the temperature of the surface of the crystallization plate shell, and the crystallization separation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pesticides, and in particular to a method for crystallizing an indoxacarb finished product. Background Art

[0002] Indoxacarb is a highly effective, low-toxic, low-residue pesticide that is highly toxic to pests but safe for animals. It is a new type of broad-spectrum, highly effective insecticide used as a tool for pest control in farmland and horticultural crops, as well as for controlling pests in lawns, gardens and indoor plants in homes and public places. Indoxacarb works by affecting chemical transmitters (neurotransmitters) in the insect nervous system.

[0003] At present, in the synthesis and production process of indoxacarb, in order to improve the activity of indoxacarb, it is necessary to purify it when it is prepared, so as to ensure the effectiveness and safety of indoxacarb. Indoxacarb is usually dissolved in an organic solvent and then precipitated from the organic solvent. In the crystallization production of indoxacarb, different crystal forms will be obtained in different solvents or at different temperatures of the same solvent. The crystallization process of indoxacarb in the solution is not only controlled by thermodynamics, but also affected by kinetics. The existing indoxacarb crystallization production device cannot accurately control the temperature of a specific area in the crystallization tank, so that the precipitation position of the crystal is not fixed, which is not convenient for collecting the crystal. In the later stage of the crystallization process, due to the saturation of the crystal, the precipitation of the crystal becomes more and more difficult, which is not conducive to improving the crystallization efficiency. Summary of the invention

[0004] The object of the present invention is to provide a method for crystallizing an indoxacarb finished product, so as to solve the technical problem in the prior art that the temperature of a specific area in a crystallization tank cannot be accurately controlled, so that the precipitation position of the crystal is not fixed and it is inconvenient to collect the crystal.

[0005] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0006] A method for crystallizing an indoxacarb finished product comprises: step one: lifting a lifting cover plate mechanism on a crystallization cylinder mechanism by a driving mechanism, pouring a mixed solution of indoxacarb and an organic solvent into a crystallization chamber, adding 3 / 1000 to 5 / 1000 of the mass of an indoxacarb finished product in the reaction solution as a crystal seed, and then lowering and covering the lifting cover plate mechanism on the crystallization cylinder mechanism by a driving mechanism.

[0007] Step 2: Open the pipeline valve on the feed pipe and connect the feed pipe with the refrigerant delivery pipe, deliver the refrigerant to the distribution part through the pipeline pump and deliver the refrigerant to the crystallization plate mechanism through the distribution hole 1 and the distribution hole 2, and close the pipeline valve on the feed pipe.

[0008] Step 3: Start pump 1 and pump 2 to circulate the refrigerant between the circulating refrigeration pipe and the distribution channel of the distribution member, thereby quickly reducing the temperature of the surface of the crystallization plate shell, so that indoxacarb crystals are precipitated on the surface of the crystallization plate shell.

[0009] Step 4: After the crystals are precipitated, the lifting cover mechanism is lifted by the driving mechanism so that the collection plate is higher than the solution surface, and the crystals on the collection plate are collected.

[0010] A device for the crystallization method of indoxacarb finished product, comprising: a crystallization cylinder mechanism, comprising a crystallization cylinder body, a crystallization chamber is opened on the crystallization cylinder body, crystallization cylinder side plates are symmetrically distributed and fixedly connected on the side end surface of the crystallization cylinder body, and screws are rotatably connected to the crystallization cylinder side plates;

[0011] The lifting cover plate mechanism comprises a cover plate body, on the side end surface of the cover plate body, cover plate side plates are symmetrically distributed and fixedly connected, threaded sleeves are embedded through and fixedly connected to the end surface of the cover plate side plates, the threaded sleeves on both sides are respectively threadedly connected to the screws on both sides, a feed pipe is embedded through and fixedly connected to the cover plate body, a material dividing piece is fixedly connected to the lower end of the feed pipe, a material dividing channel is opened in the material dividing piece, the material dividing channel is connected to the feed pipe, and material dividing holes 1 and 2 are evenly distributed in an annular manner on the side end surface of the material dividing piece, and the material dividing channel is respectively connected to the material dividing hole 1 and the material dividing hole 2;

[0012] The crystallization plate mechanism comprises a crystallization plate shell, a shell inner cavity is provided in the crystallization plate shell, a circulating refrigeration pipe is provided in the shell inner cavity, a circulating connecting pipe 1 and a circulating connecting pipe 2 are respectively penetrated and embedded in the crystallization plate shell and fixedly connected, one end of the circulating refrigeration pipe is connected to the circulating connecting pipe 1, the other end of the circulating refrigeration pipe is connected to the circulating connecting pipe 2, the circulating connecting pipe 1 is connected to the distributing channel through the distributing hole 1, and the circulating connecting pipe 2 is connected to the distributing channel through the distributing hole 2;

[0013] The driving mechanism is fixedly connected to the bottom surface of the crystallization cylinder body and is used to drive the screws on both sides of the crystallization cylinder body to rotate synchronously.

[0014] As a further solution of the present invention: side brackets are fixedly connected on both sides of the side plates of the crystallization cylinder, and screw stabilization plates are fixedly connected on the upper ends of the side brackets. A stabilization bearing 1 is embedded through and fixedly connected to the side plates of the crystallization cylinder. The outer ring of the stabilization bearing 1 is fixedly connected to the side plates of the crystallization cylinder, the screw is sleeved and fixedly connected to the inner ring of the stabilization bearing 1, a stabilization bearing 2 is embedded through and fixedly connected to the screw stabilization plate, and the screw is rotatably connected to the screw stabilization plate through the stabilization bearing 2.

[0015] As a further solution of the present invention: two screw rods and two threaded sleeves are provided.

[0016] As a further solution of the present invention: the crystallization plate mechanism is evenly distributed in an annular shape on the side end surface of the material dividing piece, the circulation connecting pipes 1 of several crystallization plate mechanisms correspond one-to-one with the annular evenly distributed material dividing holes, and the circulation connecting pipes 2 of several crystallization plate mechanisms correspond one-to-one with the annular evenly distributed material dividing holes 2.

[0017] As a further solution of the present invention: a collecting tray is fixedly connected to the material dividing member, the collecting tray is arranged below the annularly evenly distributed crystallization plate mechanism, and a through hole is opened through the collecting tray.

[0018] As a further solution of the present invention: the driving mechanism includes a mechanism fixing frame, the mechanism fixing frame is fixedly connected to the bottom surface of the crystallization tube body, a mechanism fixing plate 1 is fixedly connected to one side of the mechanism fixing frame, a mechanism fixing plate 2 is fixedly connected to the other side of the mechanism fixing frame, a driving bearing 1 is embedded through and fixedly connected to the mechanism fixing plate 1, a driven shaft is arranged on the mechanism fixing plate 1, the driven shaft is rotatably connected to the mechanism fixing plate 1 through the driving bearing 1, a driving bearing 2 is embedded through and fixedly connected to the mechanism fixing plate 2, a driving shaft is arranged on the mechanism fixing plate 2, and the driving shaft is rotatably arranged on the mechanism fixing plate 2 through the driving bearing 2.

[0019] As a further solution of the present invention: a driving wheel is sleeved through the driving shaft and is coaxially fixedly connected thereto, a driven wheel is sleeved through the driven shaft and is coaxially fixedly connected thereto, a transmission belt is arranged between the driving wheel and the driven wheel, a motor is fixedly connected to the second mechanism fixing plate, and the driving end of the motor is coaxially fixedly connected to the driving shaft.

[0020] Beneficial effects of the present invention:

[0021] 1. When the present invention is used, the lifting cover plate mechanism on the crystallization cylinder mechanism is lifted by the driving mechanism, and the mixed solution of indoxacarb and the organic solvent is poured into the crystallization chamber, and at the same time, 3 / 1000 to 5 / 1000 of the mass of the finished indoxacarb of the reaction solution is added as a seed crystal, and then the lifting cover plate mechanism on the crystallization cylinder mechanism is lowered and covered by the driving mechanism, and the pipeline valve on the feed pipe is opened and the feed pipe and the refrigerant delivery pipe are connected, and the refrigerant is delivered to the material distribution member through the pipeline pump, and the refrigerant is delivered to the crystallization plate mechanism through the material distribution hole 1 and the material distribution hole 2, and the pipeline valve on the feed pipe is closed, and the pump machine 1 and the pump machine 2 are started to The refrigerant circulates between the circulating refrigeration pipe and the distributing channel of the distributing member, thereby rapidly reducing the temperature of the outer shell surface of the crystallization plate, so that the indoxacarb crystals are precipitated on the outer shell surface of the crystallization plate. At the same time, a collecting plate is arranged below the annularly evenly distributed crystallization plate mechanism, and a through hole is provided through the collecting plate. The outer shell surface temperature of the crystallization plate is rapidly reduced by precisely controlling the outer shell temperature of the crystallization plate, which is beneficial to improving the efficiency of crystal precipitation. After the crystals are precipitated, the lifting cover plate mechanism is lifted by the driving mechanism, so that the collecting plate is higher than the solution surface, so that the crystals on the collecting plate can be collected easily.

[0022] 2. The present invention can drive the lifting cover plate mechanism to lift and lower through the driving mechanism. The driving mechanism drives the lifting cover plate mechanism to lift and lower by driving the screws on both sides of the crystallization tube body to rotate. A driven shaft is arranged on the first mechanism fixing plate, and a driving shaft is arranged on the second mechanism fixing plate. A driving wheel is sleeved through the driving shaft and coaxially fixedly connected thereto. A driven wheel is sleeved through the driven shaft and coaxially fixedly connected thereto. A transmission belt is arranged between the driving wheel and the driven wheel. The transmission belt can be arranged to drive the driving shaft and the driven shaft to rotate synchronously, so that the screws on both sides of the crystallization tube body rotate synchronously, which can ensure the stability of the lifting and lowering process of the lifting and lowering cover plate mechanism, effectively reduce the disturbance of the crystallization liquid during the lifting and lowering process of the lifting and lowering cover plate mechanism, and prevent smaller crystal nuclei from floating up and falling under the collecting plate during the lifting and lowering process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 2 It is a schematic structural diagram of the connection relationship between the crystallization cylinder mechanism and the driving mechanism of the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the lifting cover mechanism of the present invention;

[0027] Figure 4 It is a schematic structural diagram of the connection relationship between the lifting cover plate mechanism, the crystallization plate mechanism and the collection tray of the present invention;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the crystallization plate mechanism of the present invention;

[0029] Figure 6 It is a partial structural schematic diagram of the crystallization plate mechanism of the present invention.

[0030] In the figure: 1. Crystallization cylinder mechanism; 11. Crystallization cylinder body; 12. Crystallization chamber; 13. Crystallization cylinder side plate; 14. Screw; 15. Side bracket; 16. Screw stabilizing plate; 2. Lifting cover plate mechanism; 21. Cover plate body; 22. Cover plate side plate; 23. Threaded sleeve; 24. Feed pipe; 25. Material dividing piece; 26. Material dividing hole 1; 27. Material dividing hole 2; 3. Crystallization plate mechanism; 31. Crystallization plate shell; 32. Shell cavity; 33 , circulation connecting pipe one; 34, circulation connecting pipe two; 35, circulation refrigeration pipe; 36, pump one; 37, pump two; 4, driving mechanism; 41, mechanism fixing frame; 42, mechanism fixing plate one; 43, mechanism fixing plate two; 44, motor; 45, driving bearing one; 46, driving bearing two; 47, driving wheel; 48, driven wheel; 49, transmission belt; 410, driven shaft; 411, driving shaft; 5, collecting plate; 6, through hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figure 1-Figure 6As shown, a device for crystallizing finished product of indoxacarb comprises: a crystallization barrel mechanism 1, a lifting cover plate mechanism 2, a crystallization plate mechanism 3 and a driving mechanism 4, the crystallization barrel mechanism 1 comprises a crystallization barrel body 11, a crystallization chamber 12 is provided on the crystallization barrel body 11, crystallization barrel side plates 13 are symmetrically distributed and fixedly connected on the side end surface of the crystallization barrel body 11, and screws 14 are rotatably connected to the crystallization barrel side plates 13, the lifting cover plate mechanism 2 comprises a cover plate body 21, cover plate side plates 22 are symmetrically distributed and fixedly connected on the side end surface of the cover plate body 21, threaded sleeves 23 are penetrated, embedded and fixedly connected on the end surface of the cover plate side plate 22, and the threaded sleeves 23 on both sides are respectively threadedly connected to the screws 14 on both sides, a feed pipe 24 is penetrated, embedded and fixedly connected on the cover plate body 21, and a material dividing piece 25 is fixedly connected to the lower end of the feed pipe 24, a material dividing channel is provided in the material dividing piece 25, and the material dividing channel is communicated with the feed pipe 24 , the side end faces of the dividing piece 25 are respectively and evenly distributed with dividing holes 1 26 and dividing holes 27, and the dividing channels are respectively connected with the dividing holes 1 26 and the dividing holes 27, the crystallization plate mechanism 3 comprises a crystallization plate shell 31, a shell inner cavity 32 is opened in the crystallization plate shell 31, a circulating refrigeration pipe 35 is arranged in the shell inner cavity 32, a circulating connecting pipe 1 33 and a circulating connecting pipe 2 34 are respectively penetrated, embedded and fixedly connected on the crystallization plate shell 31, one end of the circulating refrigeration pipe 35 is connected with the circulating connecting pipe 1 33, and the other end of the circulating refrigeration pipe 35 is connected with the circulating connecting pipe 2 34, the circulating connecting pipe 1 33 is connected with the dividing channel through the dividing hole 1 26, and the circulating connecting pipe 2 34 is connected with the dividing channel through the dividing hole 27, the driving mechanism 4 is fixedly connected to the bottom surface of the crystallization tube body 11, and the driving mechanism 4 is used to drive the screws 14 on both sides of the crystallization tube body 11 to rotate synchronously.

[0033] Side brackets 15 are fixedly connected to both sides of the crystallization cylinder side plate 13, and screw stabilizing plates 16 are fixedly connected to the upper ends of the side brackets 15. A stabilizing bearing 1 is embedded through and fixedly connected to the crystallization cylinder side plate 13, and the outer ring of the stabilizing bearing 1 is fixedly connected to the crystallization cylinder side plate 13. The screw 14 is sleeved and fixedly connected to the inner ring of the stabilizing bearing 1, and a stabilizing bearing 2 is embedded through and connected to the screw stabilizing plate 16. The screw 14 is rotatably connected to the screw stabilizing plate 16 via the stabilizing bearing 2.

[0034] In some specific embodiments, two screws 14 and two threaded sleeves 23 are provided.

[0035] In some specific embodiments, the crystallization plate mechanism 3 is evenly distributed in an annular shape on the side end surface of the material dividing member 25, and the circulation connecting pipes 33 of several crystallization plate mechanisms 3 correspond one to one with the annular evenly distributed material dividing holes 26, and the circulation connecting pipes 2 34 of several crystallization plate mechanisms 3 correspond one to one with the annular evenly distributed material dividing holes 27.

[0036] The material dividing member 25 is fixedly connected with a collecting tray 5 . The collecting tray 5 is arranged below the annularly evenly distributed crystallizing plate mechanism 3 . A through hole 6 is formed through the collecting tray 5 .

[0037] The driving mechanism 4 includes a mechanism fixing frame 41, which is fixedly connected to the bottom surface of the crystallization tube body 11, a mechanism fixing plate 1 42 is fixedly connected to one side of the mechanism fixing frame 41, and a mechanism fixing plate 2 43 is fixedly connected to the other side of the mechanism fixing frame 41. A driving bearing 1 45 is embedded and fixedly connected to the mechanism fixing plate 1 42, and a driven shaft 410 is provided on the mechanism fixing plate 1 42. The driven shaft 410 is rotatably connected to the mechanism fixing plate 1 42 through the driving bearing 1 45. The mechanism fixing plate 2 43 is embedded and fixedly connected to the mechanism fixing plate 1 A driving bearing 46 is fixedly connected, and a driving shaft 411 is arranged on the mechanism fixing plate 43. The driving shaft 411 is rotatably arranged on the mechanism fixing plate 43 through the driving bearing 46. A driving wheel 47 is sleeved through the driving shaft 411 and is coaxially fixedly connected thereto. A driven wheel 48 is sleeved through the driven shaft 410 and is coaxially fixedly connected thereto. A transmission belt 49 is arranged between the driving wheel 47 and the driven wheel 48. A motor 44 is fixedly connected to the mechanism fixing plate 43, and a driving end of the motor 44 is coaxially fixedly connected to the driving shaft 411.

[0038] In some specific embodiments, the feed pipe 24 is provided with a pipeline valve and a pipeline pump, respectively.

[0039] A method for crystallizing an indoxacarb finished product comprises:

[0040] Step 1: lift the lifting cover mechanism 2 on the crystallization cylinder mechanism 1 through the driving mechanism 4, pour the mixed solution of indoxacarb and organic solvent into the crystallization chamber 12, and add 3 / 1000 to 5 / 1000 of the mass of indoxacarb finished product as seed crystals, and then lower and cover the lifting cover mechanism 2 on the crystallization cylinder mechanism 1 through the driving mechanism 4.

[0041] Step 2: Open the pipeline valve on the feed pipe 24 and connect the feed pipe 24 to the refrigerant delivery pipe, deliver the refrigerant to the distribution member 25 through the pipeline pump and deliver the refrigerant to the crystallization plate mechanism 3 through the distribution hole 1 26 and the distribution hole 2 27, and close the pipeline valve on the feed pipe 24.

[0042] Step 3: Start pump 1 36 and pump 2 37 to circulate the refrigerant between the circulating refrigeration pipe 35 and the distribution channel of the distribution member 25, thereby quickly reducing the temperature of the surface of the crystallization plate shell 31, so that indoxacarb crystals are precipitated on the surface of the crystallization plate shell 31.

[0043] Step 4: After the crystals are precipitated, the lifting cover mechanism 2 is lifted by the driving mechanism 4 so that the collecting plate 5 is higher than the solution surface, and the crystals on the collecting plate 5 are collected.

[0044] In order to facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution is briefly described in combination with specific application scenarios:

[0045] When in use, the lifting cover plate mechanism 2 on the crystallization cylinder mechanism 1 is lifted by the driving mechanism 4, and the mixed solution of indoxacarb and the organic solvent is poured into the crystallization chamber 12, and at the same time, 3 / 1000 to 5 / 1000 of the mass of the finished indoxacarb of the reaction solution is added as a seed crystal, and then the lifting cover plate mechanism 2 on the crystallization cylinder mechanism 1 is lowered and covered by the driving mechanism 4, and the pipeline valve on the feed pipe 24 is opened and the feed pipe 24 and the refrigerant liquid delivery pipe are connected, and the refrigerant liquid is delivered to the distribution member 25 through the pipeline pump, and the refrigerant liquid is delivered to the crystallization plate mechanism 3 through the distribution hole 1 26 and the distribution hole 27, and the pipeline valve on the feed pipe 24 is closed, and the pump 1 36 and the pump 2 37 are started. The refrigerant circulates between the circulating refrigeration pipe 35 and the material distribution channel of the material distribution member 25, thereby quickly reducing the temperature of the surface of the crystallization plate shell 31, so that the indoxacarb crystals are precipitated on the surface of the crystallization plate shell 31. At the same time, a collecting plate 5 is arranged below the annularly evenly distributed crystallization plate mechanism 3, and a through hole 6 is opened through the collecting plate 5. The temperature of the surface of the crystallization plate shell 31 is quickly reduced by accurately controlling the temperature of the surface of the crystallization plate shell 31, which is beneficial to improving the efficiency of crystal precipitation. After the crystals are precipitated, the lifting cover plate mechanism 2 is lifted by the driving mechanism 4, so that the collecting plate 5 is higher than the solution surface, so that the crystals on the collecting plate 5 can be collected.

[0046] The lifting cover mechanism 2 can be driven to lift by the driving mechanism 4. The driving mechanism 4 drives the screws 14 on both sides of the crystallization tube body 11 to rotate, thereby driving the lifting cover mechanism 2 to lift. A driven shaft 410 is arranged on the mechanism fixing plate 1 42, and a driving shaft 411 is arranged on the mechanism fixing plate 2 43. A driving wheel 47 is sleeved through the driving shaft 411 and is coaxially fixedly connected. A driven wheel 48 is sleeved through the driven shaft 410 and is coaxially fixedly connected. A transmission belt 49 is arranged between the driving wheel 47 and the driven wheel 48. By setting the transmission belt 49, the driving shaft 411 and the driven shaft 410 can be driven to rotate synchronously, so that the screws 14 on both sides of the crystallization tube body 11 can rotate synchronously, which can ensure the stability of the lifting and lowering process of the lifting and lowering cover mechanism 2, and can effectively reduce the disturbance of the crystallization liquid during the lifting and lowering process of the lifting and lowering cover mechanism 2, so as to prevent smaller crystal nuclei from floating up and falling under the collecting tray 5 during the lifting process.

[0047] Several embodiments of the present invention are described in detail above, but the embodiments of the present invention are not limited thereto and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A method for crystallizing an indoxacarb finished product, characterized in that: include: S1: The lifting cover mechanism (2) on the crystallization cylinder mechanism (1) is lifted by the driving mechanism (4), and a mixed solution of indoxacarb and an organic solvent is poured into the crystallization chamber (12), and at the same time, 3 / 1000 to 5 / 1000 of the mass of the finished indoxacarb in the reaction solution is added as a seed crystal, and then the lifting cover mechanism (2) on the crystallization cylinder mechanism (1) is lowered and covered by the driving mechanism (4); S2: Open the pipeline valve on the feed pipe (24) and connect the feed pipe (24) with the refrigerant delivery pipe, deliver the refrigerant to the material distribution member (25) through the pipeline pump, and deliver the refrigerant to the crystallization plate mechanism (3) through the material distribution hole 1 (26) and the material distribution hole 2 (27), and close the pipeline valve on the feed pipe (24); S3: starting pump 1 (36) and pump 2 (37) to circulate the refrigerant between the circulating refrigeration pipe (35) and the material distribution channel of the material distribution member (25), thereby rapidly reducing the temperature of the surface of the crystallization plate shell (31), so that indoxacarb crystals are precipitated on the surface of the crystallization plate shell (31); S4: After the crystals are precipitated, the lifting cover mechanism (2) is lifted by the driving mechanism (4) so ​​that the collecting plate (5) is higher than the surface of the solution, and the crystals on the collecting plate (5) are collected.

2. The device for the crystallization method of indoxacarb finished product according to claim 1, characterized in that: The crystallization cylinder mechanism (1) comprises a crystallization cylinder body (11), a crystallization chamber (12) is provided on the crystallization cylinder body (11), crystallization cylinder side plates (13) are symmetrically distributed and fixedly connected on the side end surface of the crystallization cylinder body (11), and screws (14) are rotatably connected to the crystallization cylinder side plates (13); The lifting cover plate mechanism (2) comprises a cover plate body (21), a cover plate side plate (22) symmetrically distributed on the side end surface of the cover plate body (21) and fixedly connected, a threaded sleeve (23) is inserted through and embedded in the end surface of the cover plate side plate (22) and fixedly connected, the threaded sleeves (23) on both sides are respectively threadedly connected to the screw rods (14) on both sides, a feed pipe (24) is inserted through and embedded in the cover plate body (21) and fixedly connected, a material distribution piece (25) is fixedly connected to the lower end of the feed pipe (24), a material distribution channel is opened in the material distribution piece (25), and the material distribution channel is connected to the feed pipe (24), and the side end surface of the material distribution piece (25) is respectively and annularly evenly distributed with a first material distribution hole (26) and a second material distribution hole (27), and the material distribution channel is respectively connected to the first material distribution hole (26) and the second material distribution hole (27); The crystallization plate mechanism (3) comprises a crystallization plate shell (31), a shell inner cavity (32) is provided in the crystallization plate shell (31), a circulating refrigeration pipe (35) is provided in the shell inner cavity (32), a circulating connecting pipe (33) and a circulating connecting pipe (34) are respectively embedded and fixedly connected through the crystallization plate shell (31), one end of the circulating refrigeration pipe (35) is connected to the circulating connecting pipe (33), and the other end of the circulating refrigeration pipe (35) is connected to the circulating connecting pipe (34), the circulating connecting pipe (33) is connected to the distributing channel through the distributing hole (26), and the circulating connecting pipe (34) is connected to the distributing channel through the distributing hole (27); The driving mechanism (4) is fixedly connected to the bottom surface of the crystallizing tube body (11), and is used to drive the screws (14) on both sides of the crystallizing tube body (11) to rotate synchronously.

3. The device for the crystallization method of indoxacarb finished product according to claim 1, characterized in that: Both sides of the crystallization cylinder side plate (13) are fixedly connected with side brackets (15), and the upper ends of the side brackets (15) are fixedly connected with screw stabilizing plates (16). A stabilizing bearing 1 is embedded and fixedly connected to the crystallization cylinder side plate (13), and the outer ring of the stabilizing bearing 1 is fixedly connected to the crystallization cylinder side plate (13). The screw (14) is sleeved and fixedly connected to the inner ring of the stabilizing bearing 1. A stabilizing bearing 2 is embedded and fixedly connected to the screw stabilizing plate (16), and the screw (14) is rotatably connected to the screw stabilizing plate (16) through the stabilizing bearing 2.

4. The device for the crystallization method of indoxacarb finished product according to claim 1, characterized in that: Two screw rods (14) and two threaded sleeves (23) are provided.

5. The device for the crystallization method of indoxacarb finished product according to claim 1, characterized in that: The crystallization plate mechanisms (3) are evenly distributed in an annular shape on the side end surface of the material distribution member (25); the circulation connection pipes (33) of a plurality of crystallization plate mechanisms (3) correspond one to one with the evenly distributed material distribution holes (26); and the circulation connection pipes (34) of a plurality of crystallization plate mechanisms (3) correspond one to one with the evenly distributed material distribution holes (27).

6. The device for the crystallization method of indoxacarb finished product according to claim 1, characterized in that: A collecting plate (5) is fixedly connected to the material dividing member (25), and the collecting plate (5) is arranged below the annularly evenly distributed crystallization plate mechanism (3), and a through hole (6) is formed through the collecting plate (5).

7. The device for the crystallization method of indoxacarb finished product according to claim 1, characterized in that: The driving mechanism (4) comprises a mechanism fixing frame (41), the mechanism fixing frame (41) is fixedly connected to the bottom surface of the crystallization tube body (11), one side of the mechanism fixing frame (41) is fixedly connected to a mechanism fixing plate 1 (42), the other side of the mechanism fixing frame (41) is fixedly connected to a mechanism fixing plate 2 (43), a driving bearing 1 (45) is embedded through and fixedly connected to the mechanism fixing plate 1 (42), a driven shaft (410) is arranged on the mechanism fixing plate 1 (42), the driven shaft (410) is rotatably connected to the mechanism fixing plate 1 (42) through the driving bearing 1 (45), a driving bearing 2 (46) is embedded through and fixedly connected to the mechanism fixing plate 2 (43), a driving shaft (411) is arranged on the mechanism fixing plate 2 (43), and the driving shaft (411) is rotatably arranged on the mechanism fixing plate 2 (43) through the driving bearing 2 (46).

8. The device for the crystallization method of indoxacarb finished product according to claim 7, characterized in that: A driving wheel (47) is sleeved through and coaxially fixedly connected to the driving shaft (411), a driven wheel (48) is sleeved through and coaxially fixedly connected to the driven shaft (410), a transmission belt (49) is provided between the driving wheel (47) and the driven wheel (48), a motor (44) is fixedly connected to the second mechanism fixing plate (43), and a driving end of the motor (44) is coaxially fixedly connected to the driving shaft (411).

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