A method for preparing indoxacarb drug-loaded particles

Abstract

The present application relates to the technical field of indoxacarb drug-loaded particle preparation, in particular to a preparation method of indoxacarb drug-loaded particle, comprising the following steps: step one, zeolite is loaded into the screening groove in the screening plate through the screening box at the top of the production device, and the rotation of one of the conveying shafts in the conveying assembly is controlled by the conveying motor, and the other conveying shaft drives the conveying belt to rotate, so that the conveying of the zeolite is realized; step two, the rotation of the second pulley is driven by the first pulley and the transmission belt, the rotation of the eccentric cam is realized, and the first fixed plate is continuously extruded to make it rise; the problems that in the prior art, due to the different sizes of the adsorbed carrier particles, the use effect of the drug-loaded particles is different, and it is difficult to screen different specifications of drug-loaded particles in the prior art, which affects the preparation process of the drug-loaded particles, and the use effect of the drug-loaded particles is not good, etc.

Description

Technical Field

[0001] This invention relates to the field of indoxacarb-loaded granule preparation technology, specifically to a method for preparing indoxacarb-loaded granules. Background Technology

[0002] Indoxacarb is a broad-spectrum insecticide, usually used in the form of drug-loaded particles. The general preparation method of indoxacarb drug-loaded particles is to adsorb indoxacarb solution onto a carrier material to obtain drug-loaded particles. Generally, a carrier material suitable for the adsorption and protection of indoxacarb is selected. Commonly used carriers include zeolite and porous ceramics.

[0003] In existing technologies, the different sizes of the adsorbed carrier particles lead to differences in the effectiveness of drug-loaded particles. Furthermore, existing technologies make it difficult to sieve drug-loaded particles of different specifications, which affects the preparation process of drug-loaded particles and results in poor performance of the drug-loaded particles.

[0004] To address the aforementioned shortcomings, a technical solution is provided. Summary of the Invention

[0005] The technical problem to be solved by this invention is as follows: In existing technologies, the different sizes of the adsorbed carrier particles lead to differences in the effectiveness of drug-loaded particles. Furthermore, existing technologies make it difficult to sieve drug-loaded particles of different specifications, which affects the preparation process of drug-loaded particles and results in poor performance of the drug-loaded particles.

[0006] The objective of this invention can be achieved through the following technical solutions: A method for preparing indoxacarb-loaded granules includes the following steps: Step 1: Zeolite is fed from the top of the screening box in the production unit into the screening trough inside the screening plate. The conveyor motor in the conveying assembly controls the rotation of one of the conveyor shafts, which in turn drives the conveyor belt to rotate, thereby realizing the conveying of zeolite. Step 2: The first pulley and the transmission belt drive the second pulley to rotate, thereby rotating the eccentric cam. This cam continuously presses against the first fixed plate, causing it to rise. Combined with the return spring and the gravity of the sieve plate, the sieve plate moves up and down in a reciprocating motion to sieve the zeolite. The sieved zeolite is then sprayed onto the indoxacarb solution through a nozzle during its descent, resulting in indoxacarb-loaded granules. Step 3: By adjusting the motor to control the rotation of the first gear, the second gear meshing with it drives the adjustment plate to rotate, so that several adjustment slots rotate to the corresponding positions of the first sieve hole, the second sieve hole or the third sieve hole, thereby enabling the sieve plate to sieve zeolite of different apertures, thus obtaining indoxacarb-loaded granules of different specifications. Step 4: The sieved zeolite particles are conveyed by a conveyor belt. The air inside the drying chamber is heated by an electric heating rod. The hot air from the drying chamber is blown into the conveyor box by a blower, thereby drying the zeolite sprayed with indoxacarb solution on the conveying components. This allows the indoxacarb solution to be quickly absorbed by the zeolite, and finally, the particles are discharged through the discharge port.

[0007] Furthermore, the production device includes a conveyor box, a screening box for screening zeolite loaded with indoxacarb solution is provided on one side of the top of the conveyor box, and drying boxes for drying zeolite are symmetrically arranged on the front and rear sides of the conveyor box.

[0008] Furthermore, the conveying box is equipped with a conveying assembly for conveying zeolite. The conveying assembly includes a conveying platform fixedly installed inside the conveying box. Conveying shafts are rotatably installed at both ends of the inner surface of the conveying platform. A conveying belt is installed between the two conveying shafts. A conveying motor is fixedly installed at the front end of the conveying platform. The output end of the conveying motor passes through the conveying platform and is fixedly connected to one of the conveying shafts.

[0009] Furthermore, a feed inlet is provided on one side of the top of the conveyor box, and a discharge inlet is provided on the other side of the bottom of the conveyor box. The feed inlet and discharge inlet are located at opposite ends of the conveyor table.

[0010] Furthermore, the top and bottom of the screening box are both provided with openings, and the screening box is equipped with a screening assembly for screening zeolite. The screening assembly includes a screening plate installed inside the screening box, an adjusting plate rotatably installed at the bottom of the screening plate, a screening groove opened at the top of the screening plate, and a plurality of first screening holes, second screening holes and third screening holes opened through the surface of the screening groove. A plurality of adjusting grooves distributed in a ring array are opened through the surface of the adjusting plate.

[0011] Furthermore, the first, second, and third screening holes are arranged in a circular array, and the first, second, and third screening holes are staggered. The adjustment grooves are respectively adapted to the first, second, and third screening holes.

[0012] Furthermore, a first fixing plate is symmetrically fixed on the front and rear sides of the screening plate, and a second fixing plate is fixed on the top of the first fixing plate. The second fixing plate is fixedly installed inside the screening box. A return spring is fixedly installed between the first fixing plate and the second fixing plate. An eccentric cam is installed below one of the first fixing plates. The eccentric cam is rotatably installed inside the screening box via a rotating shaft. The top of the eccentric cam abuts against the bottom of the first fixing plate.

[0013] Furthermore, one of the conveying shafts passes through the conveying table and is fixedly equipped with a first pulley, one end of the rotating shaft passes through the screening box and is fixedly equipped with a second pulley, a transmission belt is installed between the first pulley and the second pulley, and several nozzles are fixedly installed inside the screening box near the lower position, and the several nozzles are distributed in a ring array on the inner wall of the screening box.

[0014] Furthermore, an adjusting motor is fixedly installed on one side of the screening plate, a first gear is fixedly installed at the output end of the adjusting motor, and a second gear that meshes with the first gear is fixedly installed on the outer surface of the adjusting plate.

[0015] Furthermore, a number of electric heating rods are fixedly installed inside the drying box, a drying plate is fixedly installed on the side of the drying box near the conveyor box, one side of the drying plate extends into the conveyor box, a blower is fixedly installed outside the drying box, the output end of the blower is connected to the inside of the drying box, and a number of evenly distributed drying holes are opened through the surface of the drying plate.

[0016] The beneficial effects of this invention are: In this invention, the sieving assembly allows zeolite to be fed from the top of the sieving box into the sieving grooves within the sieving plate. A conveyor motor in the conveying assembly controls the rotation of one conveyor shaft, which in turn drives a conveyor belt, thus conveying the zeolite. A first pulley and a transmission belt drive a second pulley, causing an eccentric cam to rotate and continuously press against a first fixed plate, raising it. Combined with a return spring and the gravity of the sieving plate, this causes the sieving plate to reciprocate up and down, achieving thorough sieving of the zeolite. The sieved zeolite, during its descent, is sprayed with indoxacarb solution through a nozzle, resulting in indoxacarb-loaded granules. An adjusting motor controls the rotation of a first gear, which in turn drives a second gear to rotate an adjusting plate. This causes several adjusting grooves to rotate to the corresponding positions of the first, second, or third sieving holes, allowing the sieving plate to sieve zeolite of different aperture sizes, resulting in indoxacarb-loaded granules of different specifications. This method offers good preparation results and has a wide range of applications.

[0017] The drying chamber is designed so that the electric heating rod heats the air inside the chamber, and the hot air is blown into the conveyor box by a blower. This dries the zeolite sprayed with indoxacarb solution on the conveyor assembly, allowing the indoxacarb solution to be quickly adsorbed by the zeolite and improving the production efficiency of indoxacarb-loaded granules. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall internal structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the screening box in this invention; Figure 4 In this invention Figure 4 Enlarged view of the structure at point A in the middle; Figure 5 This is a top view of the sieve plate in this invention; Figure 6 This is a top view of the structure of the adjusting plate in this invention; Figure 7 This is a three-dimensional view of the drying plate in this invention; Figure 8 This is a top view of the internal structure of the drying oven in this invention.

[0020] In the diagram: 1. Conveyor box; 2. Screening box; 3. Drying box; 11. Conveyor platform; 12. Conveyor belt; 13. Conveyor motor; 14. Feed inlet; 15. Discharge outlet; 21. Screening plate; 22. Adjusting plate; 23. First fixed plate; 24. Second fixed plate; 25. Return spring; 26. Eccentric cam; 27. First pulley; 28. Second pulley; 29. ​​Transmission belt; 210. Nozzle; 211. First screening hole; 212. Second screening hole; 213. Third screening hole; 221. Adjusting groove; 222. Adjusting motor; 223. First gear; 224. Second gear; 31. Electric heating rod; 32. Drying plate; 33. Blower; 321. Drying hole. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-8 The present invention provides a technical solution: A method for preparing indoxacarb-loaded granules includes the following steps: Step 1: Zeolite is fed from the top of the screening box 2 in the production device into the screening trough inside the screening plate 21. The conveying motor 13 in the conveying assembly controls the rotation of one of the conveying shafts, which in turn drives the conveyor belt 12 to rotate, thereby realizing the conveying of zeolite. Step 2: The first pulley 27 and the transmission belt 29 drive the second pulley 28 to rotate, thereby rotating the eccentric cam 26. This causes the cam to continuously press against the first fixed plate 23, causing it to rise. Combined with the return spring 25 and the gravity of the sieve plate 21, the sieve plate 21 is driven to reciprocate up and down to sieve the zeolite. The sieved zeolite is then sprayed onto the indoxacarb solution through the nozzle 210 during its descent, resulting in indoxacarb-loaded granules. Step 3: By adjusting the motor 222 to control the rotation of the first gear 223, the second gear 224 meshing with it drives the adjustment plate 22 to rotate, so that several adjustment slots 221 rotate to the corresponding positions of the first sieve hole 211, the second sieve hole 212 or the third sieve hole 213, thereby enabling the sieve plate 21 to sieve zeolite of different apertures, thereby obtaining indoxacarb-loaded granules of different specifications. Step 4: The sieved zeolite particles are conveyed by conveyor belt 12. The air inside the drying chamber 3 is heated by electric heating rod 31. The hot air inside the drying chamber 3 is blown into the conveyor box 1 by blower 33, thereby drying the zeolite sprayed with indoxacarb solution on the conveying component. This allows the indoxacarb solution to be quickly absorbed by the zeolite. Finally, the zeolite is discharged through the discharge port 15.

[0023] The production device includes a conveying box 1, a screening box 2 for screening zeolite loaded with indoxacarb solution is provided on one side of the top of the conveying box 1, and a drying box 3 for drying zeolite is symmetrically arranged on the front and rear sides of the conveying box 1; the zeolite serves as the carrier of indoxacarb solution, and the carrier can also be a porous ceramic or other material that can adsorb indoxacarb.

[0024] The conveying box 1 is equipped with a conveying assembly for conveying zeolite. The conveying assembly includes a conveying platform 11 fixedly installed inside the conveying box 1. Conveying shafts are rotatably installed on the left and right ends of the inner surface of the conveying platform 11. A conveying belt 12 is installed between the two conveying shafts. A conveying motor 13 is fixedly installed at the front end of the conveying platform 11. The output end of the conveying motor 13 passes through the conveying platform 11 and is fixedly connected to one of the conveying shafts.

[0025] The conveyor box 1 has a feed inlet 14 on one side of the top and a discharge outlet 15 on the other side of the bottom. The feed inlet 14 and the discharge outlet 15 are located at the two ends of the conveyor table 11, respectively.

[0026] The sieve box 2 has openings at both the top and bottom. Inside the sieve box 2, there is a sieve assembly for sieving zeolite. The sieve assembly includes a sieve plate 21 inside the sieve box 2. An adjusting plate 22 is rotatably provided at the bottom of the sieve plate 21. A sieve groove is provided at the top of the sieve plate 21. A plurality of first sieve holes 211, second sieve holes 212 and third sieve holes 213 are provided through the surface of the sieve groove. A plurality of adjusting grooves 221 arranged in a ring array are provided through the surface of the adjusting plate 22.

[0027] The first sieve holes 211, the second sieve holes 212 and the third sieve holes 213 are arranged in a ring array, and the first sieve holes 211, the second sieve holes 212 and the third sieve holes 213 are staggered. The apertures of the first sieve holes 211, the second sieve holes 212 and the third sieve holes 213 show an increasing trend. The several adjusting grooves 221 are respectively adapted to the several first sieve holes 211, the second sieve holes 212 and the third sieve holes 213.

[0028] The screening plate 21 is symmetrically fixed with a first fixing plate 23 on its front and rear sides. A second fixing plate 24 is fixed on the top of the first fixing plate 23. The second fixing plate 24 is fixed inside the screening box 2. A return spring 25 is fixed between the first fixing plate 23 and the second fixing plate 24. An eccentric cam 26 is provided below one of the first fixing plates 23. The eccentric cam 26 is rotatably mounted inside the screening box 2 via a rotating shaft. The top of the eccentric cam 26 abuts against the bottom of the first fixing plate 23.

[0029] One of the conveying shafts passes through the conveying table 11 and is fixedly equipped with a first pulley 27. One end of the rotating shaft passes through the screening box 2 and is fixedly equipped with a second pulley 28. A transmission belt 29 is installed between the first pulley 27 and the second pulley 28.

[0030] An adjusting motor 222 is fixedly installed on one side of the screening plate 21. A first gear 223 is fixedly installed at the output end of the adjusting motor 222, and a second gear 224 meshing with the first gear 223 is fixedly installed on the outer surface of the adjusting plate 22. In use, the adjusting motor 222 controls the first gear 223 to rotate, thereby driving the meshing second gear 224 to rotate, so that the adjusting plate 22 can rotate to meet the adjustment requirements of the screening aperture.

[0031] Several nozzles 210 are fixedly installed inside the screening box 2 near the bottom. The nozzles 210 are arranged in a ring array on the inner wall of the screening box 2. The nozzles 210 are used to spray indoxacarb solution, thereby spraying indoxacarb solution onto the zeolite after screening.

[0032] By configuring the screening components, zeolite is fed from the top of the screening box 2 into the screening trough within the screening plate 21. The conveying motor 13 in the conveying assembly controls the rotation of one conveyor shaft, which in turn drives the conveyor belt 12 to rotate, thus conveying the zeolite. The first pulley 27 and the transmission belt 29 drive the second pulley 28 to rotate, causing the eccentric cam 26 to rotate. This cam continuously presses against the first fixed plate 23, causing it to rise. Combined with the return spring 25 and the gravity of the screening plate 21, this causes the screening plate 21 to reciprocate up and down, thereby achieving... The zeolite is thoroughly sieved, and the sieved zeolite is sprayed onto the indoxacarb solution through nozzle 210 during its descent to obtain indoxacarb-loaded particles. The first gear 223 is rotated by adjusting motor 222, which in turn drives the adjusting plate 22 to rotate. This causes several adjusting grooves 221 to rotate to the corresponding positions of the first sieve hole 211, the second sieve hole 212, or the third sieve hole 213, thereby enabling the sieve plate 21 to sieve zeolite of different pore sizes, thus obtaining indoxacarb-loaded particles of different specifications. The preparation effect is good and the application range is wide.

[0033] The drying chamber 3 is equipped with several electric heating rods 31. A drying plate 32 is fixedly installed on the side of the drying chamber 3 near the conveyor box 1. One side of the drying plate 32 extends into the interior of the conveyor box 1. A blower 33 is fixedly installed on the outside of the drying chamber 3. The output end of the blower 33 is connected to the interior of the drying chamber 3.

[0034] The surface of the drying plate 32 is perforated with a plurality of evenly distributed drying holes 321. The drying chamber 3 is equipped with an electric heating rod 31 that heats the air inside the chamber. A blower 33 then blows the hot air from inside the drying chamber 3 into the conveying box 1, thereby drying the zeolite sprayed with indoxacarb solution on the conveying assembly. This allows the indoxacarb solution to be rapidly adsorbed by the zeolite, improving the production efficiency of indoxacarb-loaded granules.

[0035] Working principle: In use, zeolite is fed from the top of the screening box 2 into the screening trough within the screening plate 21. The conveying motor 13 in the conveying assembly controls the rotation of one conveying shaft, which in turn drives the conveyor belt 12, thus conveying the zeolite. The first pulley 27 and the transmission belt 29 drive the second pulley 28 to rotate, causing the eccentric cam 26 to rotate and continuously press against the first fixed plate 23, causing it to rise. Combined with the return spring 25 and the gravity of the screening plate 21, this causes the screening plate 21 to reciprocate up and down, achieving thorough screening of the zeolite. The screened zeolite, during its descent, is sprayed with indoxacarb solution through the nozzle 210, resulting in indoxacarb-loaded granules. The process is controlled by adjusting the electrical... Machine 222 controls the rotation of the first gear 223, which in turn drives the adjustment plate 22 to rotate in conjunction with the second gear 224 meshing with it. This causes several adjustment slots 221 to rotate to the corresponding positions of the first screening hole 211, the second screening hole 212, or the third screening hole 213, thereby enabling the screening plate 21 to screen zeolite with different apertures and obtain indoxacarb-loaded particles of different specifications. The screened zeolite particles are conveyed by the conveyor belt 12, and the air inside the drying chamber 3 is heated by the electric heating rod 31. The hot air inside the drying chamber 3 is blown into the conveyor box 1 by the blower 33, thereby drying the zeolite sprayed with indoxacarb solution on the conveying components. This allows the indoxacarb solution to be quickly adsorbed by the zeolite, and finally discharged through the discharge port 15.

[0036] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A method for preparing indoxacarb-loaded granules, characterized in that, Includes the following steps: Step 1: The zeolite is fed from the top of the screening box (2) in the production device into the screening trough in the screening plate (21). The conveying motor (13) in the conveying assembly controls one of the conveying shafts to rotate, which in turn drives the conveying belt (12) to rotate, thereby realizing the conveying of the zeolite. Step 2: Utilizing the rotation of the conveying shaft driven by the conveying motor (13) in Step 1, the first pulley (27) and the transmission belt (29) fixed on the conveying shaft drive the second pulley (28) to rotate, thereby realizing the rotation of the eccentric cam (26), which continuously squeezes the first fixed plate (23) to make it rise. With the help of the return spring (25) and the gravity of the sieve plate (21), the sieve plate (21) is driven to make up-down reciprocating motion to sieve the zeolite. The sieved zeolite is sprayed onto the indoxacarb solution through the nozzle (210) during the falling process to obtain indoxacarb loaded particles. Step 3: Control the first gear (223) to rotate by adjusting the motor (222), and the second gear (224) meshing with it will drive the adjusting plate (22) to rotate, so that several adjusting grooves (221) rotate to the corresponding positions of the first screening hole (211), the second screening hole (212) or the third screening hole (213), thereby realizing the screening plate (21) to screen zeolite with different apertures, thereby obtaining indoxacarb-loaded granules of different specifications; Step 4: The sieved zeolite particles are conveyed by a conveyor belt (12). The air inside the drying box (3) is heated by an electric heating rod (31). The hot air inside the drying box (3) is blown into the conveyor box (1) by a blower (33) through a drying plate (32) with several evenly distributed drying holes (321) on its surface. This dries the zeolite sprayed with indoxacarb solution on the conveying assembly, so that the indoxacarb solution is quickly adsorbed by the zeolite. Finally, the zeolite is discharged through the discharge port (15).

2. The method for preparing indoxacarb-loaded granules according to claim 1, characterized in that, The production device includes a conveyor box (1), a screening box (2) for screening zeolite loaded with indoxacarb solution is provided on one side of the top of the conveyor box (1), and a drying box (3) for drying zeolite is symmetrically provided on the front and rear sides of the conveyor box (1).

3. The method for preparing indoxacarb-loaded granules according to claim 2, characterized in that, The conveying box (1) is equipped with a conveying assembly for conveying zeolite. The conveying assembly includes a conveying platform (11) fixedly installed inside the conveying box (1). Conveying shafts are rotatably installed on the left and right ends of the inner surface of the conveying platform (11). A conveying belt (12) is installed between the two conveying shafts. A conveying motor (13) is fixedly installed on the front end of the conveying platform (11). The output end of the conveying motor (13) passes through the conveying platform (11) and is fixedly connected to one of the conveying shafts.

4. The method for preparing indoxacarb-loaded granules according to claim 2, characterized in that, The conveying box (1) has a feed inlet (14) on one side of the top and a discharge outlet (15) on the other side of the bottom. The feed inlet (14) and the discharge outlet (15) are located at the two ends of the conveying platform (11), respectively.

5. The method for preparing indoxacarb-loaded granules according to claim 3, characterized in that, The sieve box (2) has openings at both the top and bottom. The sieve box (2) is equipped with a sieve assembly for sieving zeolite. The sieve assembly includes a sieve plate (21) inside the sieve box (2). An adjustment plate (22) is rotatably provided at the bottom of the sieve plate (21). A sieve groove is provided at the top of the sieve plate (21). A number of first sieve holes (211), second sieve holes (212), and third sieve holes (213) are provided through the surface of the sieve groove. A number of adjustment grooves (221) arranged in a ring array are provided through the surface of the adjustment plate (22).

6. The method for preparing indoxacarb-loaded granules according to claim 5, characterized in that, A plurality of the first screening holes (211), the second screening holes (212) and the third screening holes (213) are arranged in a ring array, and the first screening holes (211), the second screening holes (212) and the third screening holes (213) are staggered. A plurality of adjustment grooves (221) are adapted to the plurality of the first screening holes (211), the second screening holes (212) and the third screening holes (213) respectively.

7. The method for preparing indoxacarb-loaded granules according to claim 5, characterized in that, The screening plate (21) is symmetrically fixed with a first fixing plate (23) on both the front and rear sides. A second fixing plate (24) is fixed on the top of the first fixing plate (23). The second fixing plate (24) is fixed inside the screening box (2). A return spring (25) is fixed between the first fixing plate (23) and the second fixing plate (24). An eccentric cam (26) is provided below one of the first fixing plates (23). The eccentric cam (26) is rotatably disposed inside the screening box (2) via a rotating shaft. The top of the eccentric cam (26) abuts against the bottom of the first fixing plate (23).

8. The method for preparing indoxacarb-loaded granules according to claim 7, characterized in that, One of the conveying shafts passes through the conveying table (11) and is fixedly provided with a first pulley (27). One end of the rotating shaft passes through the screening box (2) and is fixedly provided with a second pulley (28). A transmission belt (29) is installed between the first pulley (27) and the second pulley (28). Several nozzles (210) are fixedly provided inside the screening box (2) near the bottom. The nozzles (210) are arranged in a ring array on the inner wall of the screening box (2).

9. The method for preparing indoxacarb-loaded granules according to claim 5, characterized in that, An adjusting motor (222) is fixedly installed on one side of the screening plate (21), a first gear (223) is fixedly installed at the output end of the adjusting motor (222), and a second gear (224) that meshes with the first gear (223) is fixedly installed on the outer surface of the adjusting plate (22).

10. The method for preparing indoxacarb-loaded granules according to claim 2, characterized in that, The drying box (3) is fixedly equipped with several electric heating rods (31). A drying plate (32) is fixedly installed on the side of the drying box (3) near the conveyor box (1). One side of the drying plate (32) extends into the conveyor box (1). A blower (33) is fixedly installed on the outside of the drying box (3). The output end of the blower (33) is connected to the inside of the drying box (3). Several evenly distributed drying holes (321) are opened through the surface of the drying plate (32).

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