Grinding device for suspending agent containing indoxacarb active ingredient

Abstract

The invention discloses a grinding device for a suspending agent containing an indoxacarb active ingredient, and particularly relates to the technical field of grinding, the grinding device comprises a grinding cylinder, a grinder is rotatably mounted in the grinding cylinder, a gap between the grinder and the grinding cylinder is gradually reduced from top to bottom, the bottom of the grinder is coaxially connected with a reciprocating screw rod, and the bottom of the grinding cylinder is communicated with an extrusion pipe; the inner wall of an extrusion cavity of the extrusion pipe is fixedly connected with a plurality of guide rails, the guide rails are jointly and slidably provided with a piston, the piston is horizontally and rotatably provided with a guide block, the guide block is clamped into a guide groove of the reciprocating lead screw, the piston is attached to the inner wall of the extrusion cavity of the extrusion pipe, and the bottom of the extrusion pipe communicates with a screening box. The screening box is provided with a first screen and a second screen from top to bottom, meshes of the first screen are larger than those of the second screen, a backflow cavity of the screening box is communicated with an inner cavity of the grinding cylinder, and the grinding device for the suspending agent containing the effective ingredient of indoxacarb is beneficial to grading treatment of ground indoxacarb particles, so that the qualified rate of products is increased.

Description

Technical Field

[0001] The present invention belongs to the technical field of grinding, and particularly relates to a grinding device for a suspension agent containing indoxacarb as an active ingredient. Background Art

[0002] Indoxacarb suspension is a pesticide preparation with indoxacarb as the main active ingredient, usually containing a certain proportion of adjuvants and water as a carrier. This dosage form makes the drug more easily and evenly dispersed in water, facilitating spraying application, improving the drug efficacy and reducing the impact on the environment. Indoxacarb suspension causes the death of pests by interfering with the sodium ion channels in the nervous system of pests, and is particularly suitable for controlling chewing mouthpart pests such as lepidopteran larvae. Its advantages include good stability, easy operation, reduced loss of the agent, and enhanced adhesion on the target surface, which helps to improve the control effect and reduce environmental pollution.

[0003] When formulating indoxacarb suspension, it is necessary to grind solid indoxacarb into uniformly sized particles so that the indoxacarb particles are suspended in the agent. The indoxacarb grinding particles after grinding by the existing grinders are of different sizes and need to be sieved multiple times before use, which is time-consuming and laborious. Therefore, a new grinding device for a suspension agent containing indoxacarb as an active ingredient is needed. Summary of the Invention

[0004] To solve the above problems, the present invention discloses a grinding device for a suspension agent containing indoxacarb as an active ingredient.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] A grinding device for a suspension agent containing indoxacarb as an active ingredient, comprising a grinding cylinder. A grinder is rotatably installed in the grinding cylinder, and the gap between the grinder and the grinding cylinder gradually decreases from top to bottom. The bottom of the grinder is coaxially connected with a reciprocating lead screw. The bottom of the grinding cylinder is communicated with an extrusion pipe. The inner wall of the extrusion chamber of the extrusion pipe is fixedly connected with a plurality of guide rails, and a piston is slidably installed by the plurality of guide rails together. A guide block is horizontally rotatably installed on the piston, and the guide block is clamped into the guide groove of the reciprocating lead screw. The piston is in contact with the inner wall of the extrusion chamber of the extrusion pipe. The bottom of the extrusion pipe is communicated with a screening box. A first screen and a second screen are installed in the screening box from top to bottom, and the mesh of the first screen is larger than that of the second screen. The reflux chamber of the screening box is communicated with the inner cavity of the grinding cylinder.

[0007] As a preferred technical solution of the invention, the inner cavity of the extrusion pipe is composed of a cylindrical storage chamber and an extrusion chamber that are coaxial, and the diameter of the storage chamber is larger than that of the extrusion chamber.

[0008] As a preferred technical solution of the invention, a horizontal shaft extends from the inner ring wall of the piston, and the horizontal shaft is rotatably connected with the guide block.

[0009] As a preferred technical solution of the invention, the top of the reciprocating lead screw is threadedly connected to the grinder, and a part of the cross-section of the reciprocating lead screw is a regular hexagon.

[0010] As a preferred technical solution of the invention, a corrugated pipe is commonly connected between the extrusion pipe and the screening box.

[0011] As a preferred technical solution of the invention, both the first screen and the second screen are inclined and inserted, and the inclination directions of the first screen and the second screen are opposite.

[0012] As a preferred technical solution of the invention, sockets adapted to the frames of the first screen and the second screen are fixedly connected to the inner wall of the screening box, and rotating shafts are fixedly connected to two opposite outer walls of the screening box. Each rotating shaft is rotatably connected to a wrench pressing plate, and the two wrench pressing plates are respectively in contact with the top frame parts of the first screen and the second screen.

[0013] As a preferred technical solution of the invention, discharge hoppers are communicated with both the reflux chamber and the collection chamber of the screening box, and the discharge hopper communicated with the reflux chamber is communicated with a reflux hose, and the reflux hose is communicated with the inner cavity of the grinding cylinder.

[0014] As a preferred technical solution of the invention, the top opening of the grinding cylinder is covered with a top cover, a feeding hopper communicated with the inner cavity of the grinding cylinder is installed on the top cover, and a driving motor coaxially and fixedly connected to the grinder is fixedly installed on the top of the top cover.

[0015] As a preferred technical solution of the invention, an installation frame is fixedly sleeved outside the grinding cylinder, a connecting seat is fixedly installed on each of the two sides of the screening box, and a spring is fixedly sleeved on each connecting seat. Each spring is inserted into an extension cylinder at the bottom of the installation frame, and a vibrator is fixedly connected to the outer wall of the screening box.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. Since the reciprocating lead screw and the grinder rotate coaxially, the reciprocating lead screw drives the piston to move reciprocally along the guide rail. The piston continuously squeezes the storage cavity into the extrusion cavity, and then the solid-liquid mixture flows into the screening box through the corrugated pipe. Under the continuous extrusion of the piston, the solid-liquid mixture in the screening box, due to the relatively dense meshes of the first screen and the second screen, the solid-liquid mixture in the reflux cavity continuously flows back into the grinding cylinder through the reflux hose for re-grinding. And the solid-liquid mixture in the collection cavity, under the screening of the second screen, part of the excess liquid and too small indoxacarb particles flow into the recovery cavity for recovery. The solid-liquid mixture mixed with indoxacarb particles of qualified particle size flows out through the discharge hopper of the collection cavity. Thanks to the classification treatment of the ground indoxacarb particles, while producing indoxacarb particles of qualified particle size (uniform size), the too large and too small indoxacarb particles are recovered, improving the product qualification rate and reducing the waste of raw materials;

[0018] 2. When the first screen and the second screen screen the solid-liquid mixture, the vibrator is in the starting state, so that while screening slowly, the first screen and the second screen are not easily blocked. At the same time, thanks to the non-rigid connection of the screening box to the outside through the corrugated pipe, the reflux hose and the spring, the conduction of harmful vibrations is reduced, and the influence of harmful vibrations on grinding is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0020] Figure 2 is a schematic diagram of the overall structure of another angle of an embodiment of the present invention;

[0021] Figure 3 is a schematic diagram of the overall structure of an embodiment of the present invention removing the vibrator, the connecting seat, the spring and the mounting frame;

[0022] Figure 4 is a sectional view of the grinding cylinder, the grinder, the extrusion pipe, the top cover, the drive motor and the feeding hopper of an embodiment of the present invention;

[0023] Figure 5 is an embodiment of the present invention Figure 4 the enlarged view of part A;

[0024] Figure 6 is an exploded view of the reciprocating lead screw, the guide rail, the piston and the guide block of an embodiment of the present invention;

[0025] Figure 7 is a sectional view of the screening box, the socket, the first screen, the second screen, the discharge hopper, the rotating shaft and the wrench pressing plate of an embodiment of the present invention;

[0026] Figure 8 is an exploded view of the socket and the first screen of an embodiment of the present invention.

[0027] List of drawing reference numerals:

[0028] 1. Grinding cylinder; 2. Grinder; 3. Reciprocating lead screw; 4. Guide rail; 5. Piston; 6. Guide block;

[0029] 7. Extrusion tube; 701. Storage chamber; 702. Extrusion chamber;

[0030] 8. Bellows;

[0031] 9. Screening box; 901. Return flow chamber; 902. Collection chamber; 903. Recycling chamber;

[0032] 10. Socket; 11. First sieve; 12. Second sieve; 13. Discharge hopper; 14. Rotating shaft; 15. Wrench pressing plate; 16. Return flow hose; 17. Top cover; 18. Driving motor; 19. Feeding hopper; 20. Vibrator; 21. Connecting seat; 22. Spring; 23. Mounting bracket. Detailed implementation manners

[0033] The present invention will be further clarified below in conjunction with the drawings and specific implementation manners. It should be understood that the following specific implementation manners are only used to illustrate the present invention and not to limit the scope of the present invention.

[0034] Please refer to Figure 1-8, a grinding device for a suspension containing indoxacarb as an active ingredient, including a grinding cylinder 1. A grinder 2 is rotatably installed in the grinding cylinder 1, and the gap between the grinder 2 and the grinding cylinder 1 gradually decreases from top to bottom. The shrinking gap between the grinder 2 and the grinding cylinder 1 is the cavity for grinding indoxacarb particles, which is used to gradually grind indoxacarb particles and grinding aids to an appropriate size. The grinding aid is a solid-liquid mixture. The mixture of indoxacarb particles and the grinding aid is a solid-liquid mixed fluid. The top of the grinding cylinder 1 is covered with a top cover 17, and a feeding hopper 19 communicating with the inner cavity of the grinding cylinder 1 is installed on the top cover 17. The feeding hopper 19 is used to add the mixture of indoxacarb particles and the grinding aid into the grinding cylinder 1. A driving motor 18 fixedly connected coaxially with the grinder 2 is fixedly installed on the top of the top cover 17. A reciprocating lead screw 3 is coaxially connected to the bottom of the grinder 2. A squeeze tube 7 is connected to the bottom of the grinding cylinder 1. A plurality of guide rails 4 are fixedly connected to the inner wall of the squeeze chamber 702 of the squeeze tube 7, and a piston 5 is slidably installed jointly by the plurality of guide rails 4, and the guide rails 4 extend into the storage chamber 701. A guide block 6 is horizontally rotatably installed on the piston 5, and the guide block 6 is snapped into the guide groove of the reciprocating lead screw 3. Specifically, a horizontal shaft extends from the inner ring wall of the piston 5, and the horizontal shaft is rotatably connected to the guide block 6. The guide groove of the reciprocating lead screw 3 is composed of two sets of helical grooves with opposite rotation directions, and the connection part is arc-shaped. The width of the guide block 6 is slightly narrower than the width of the guide groove of the reciprocating lead screw 3, which is convenient for turning at the arc of the guide groove. When the reciprocating lead screw 3 rotates, the guide block 6 moves in the guide groove of the reciprocating lead screw 3, causing the piston 5 to reciprocate along the guide rail 4. The inner cavity of the squeeze tube 7 is composed of a cylindrical storage chamber 701 and a squeeze chamber 702 that are coaxial, and the diameter of the storage chamber 701 is larger than the diameter of the squeeze chamber 702. The piston 5 fits against the inner wall of the squeeze chamber 702 of the squeeze tube 7, and when the piston 5 reciprocates along the guide rail 4, the fluid in the squeeze chamber 702 is squeezed downward.

[0035] The top of the reciprocating lead screw 3 is threadedly connected to the grinder 2, and a part of the cross-section of the reciprocating lead screw 3 is regular hexagon. The part of the reciprocating lead screw 3 with a regular hexagon cross-section is arranged below the thread connected to the grinder 2, which is used to tighten the reciprocating lead screw 3 on the grinder 2. The rotation direction of the reciprocating lead screw 3 is the direction in which it will be self-tightened on the grinder 2.

[0036] The bottom of the extrusion tube 7 is connected to a screening box 9. Among them, a corrugated pipe 8 is commonly connected between the extrusion tube 7 and the screening box 9, and the corrugated pipe 8 is used to prevent excessive vibration of the screening box 9 from being transmitted to the extrusion tube 7. The screening box 9 is equipped with a first screen 11 and a second screen 12 from top to bottom, and the mesh of the first screen 11 is larger than that of the second screen 12. The first screen 11 and the second screen 12 divide the inner cavity of the screening box 9 into a reflux cavity 901, a collection cavity 902, and a recycling cavity 903 from top to bottom. The reflux cavity 901 of the screening box 9 is connected to the inner cavity of the grinding cylinder 1. The reflux cavity 901 and the collection cavity 902 of the screening box 9 are both connected to a discharge hopper 13, and the discharge hopper 13 connected to the reflux cavity 901 is connected to a reflux hose 16, and the reflux hose 16 is connected to the inner cavity of the grinding cylinder 1. The volume of the extrusion cavity 702 is larger than the volume of the reflux hose 16, which is convenient for the fluid mixed with the unqualified indoxacarb particles to flow back into the grinding cylinder 1. The indoxacarb suspension in the collection cavity 902 is a qualified product. The meshes of the first screen 11 and the second screen 12 are both relatively dense, and only the solid-liquid mixture can be slowly screened.

[0037] Both the first screen 11 and the second screen 12 are inclined and inserted, and the inclination directions of the first screen 11 and the second screen 12 are opposite. The frames of the first screen 11 and the second screen 12 are made of wedge-shaped blocks with hollowed-out parts. The inner wall of the screening box 9 is fixedly connected with sockets 10 adapted to the frames of the first screen 11 and the second screen 12. Both opposite outer walls of the screening box 9 are fixedly connected with rotating shafts 14, and each rotating shaft 14 is rotatably connected with a wrench pressing plate 15, and the two wrench pressing plates 15 are respectively in contact with the top frame parts of the first screen 11 and the second screen 12. When the wrench pressing plate 15 is in contact with the top frame part of the first screen 11 or the second screen 12, the wrench pressing plate 15 presses the top frame of the first screen 11 or the second screen 12, so that the wedge-shaped frame of the first screen 11 or the second screen 12 is closely fitted with the socket 10.

[0038] An installation frame 23 is fixedly sleeved outside the grinding cylinder 1. A connecting seat 21 is fixedly installed on each side of the screening box 9, and each connecting seat 21 is fixedly sleeved with a spring 22. Each spring 22 is inserted into the extension cylinder at the bottom of the installation frame 23, and a vibrator 20 is fixedly connected to the outer wall of the screening box 9. After the vibrator 20 is started, the screening box 9 vibrates, so as to promote the indoxacarb suspension after grinding to pass through the first screen 11 and the second screen 12, so that while slowly screening, the first screen 11 and the second screen 12 are not easily blocked. The screening box 9 is non-rigidly connected to the outside through the corrugated pipe 8, the reflux hose 16 and the spring 22, reducing the conduction of vibration and reducing the impact on grinding.

[0039] Working principle:

[0040] During operation, a solid-liquid mixture of indoxacarb particles and a grinding aid is poured into the hopper 19. The solid-liquid mixture gradually grinds and descends between the rotating grinder 2 and the grinding cylinder 1. Then the solid-liquid mixture flows into the storage chamber 701 of the extrusion tube 7. Since the reciprocating lead screw 3 rotates coaxially with the grinder 2, the reciprocating lead screw 3 drives the piston 5 to reciprocate along the guide rail 4. The piston 5 continuously squeezes the storage chamber 701 into the extrusion chamber 702. Then the solid-liquid mixture flows into the screening box 9 through the bellows 8. Under the continuous extrusion of the piston 5, the solid-liquid mixture in the screening box 9. Since the meshes of the first screen 11 and the second screen 12 are relatively dense, the solid-liquid mixture passes through the first screen 11 and the second screen 12 at a slower speed. The solid-liquid mixture in the reflux chamber 901 continuously flows back into the grinding cylinder 1 through the reflux hose 16 for re-grinding. Under the screening of the second screen 12, part of the excess liquid and too small indoxacarb particles in the solid-liquid mixture in the collection chamber 902 flow into the recovery chamber 903 for recovery. The solid-liquid mixture mixed with indoxacarb particles of qualified particle size flows out through the discharge hopper 13 of the collection chamber 902. The solid-liquid mixture flowing out of the collection chamber 902 is used to prepare indoxacarb suspension. If the production line runs continuously, the contents of various substances in the solid-liquid mixture flowing out of the collection chamber 902 remain within a certain proportional range and can be directly used to prepare indoxacarb suspension;

[0041] When the first screen 11 and the second screen 12 screen the solid-liquid mixture, the vibrator 20 is in the starting state, so that while screening slowly, the first screen 11 and the second screen 12 are not easily blocked, and the screening box 9 is non-rigidly connected to the outside through the bellows 8, the reflux hose 16 and the spring 22, reducing the conduction of vibration and the impact on grinding.

[0042] It should be noted that the above content only illustrates the technical idea of the present invention and cannot be used to limit the protection scope of the present invention. For those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements all fall within the protection scope of the claims of the present invention.

Claims

1. A grinding device for a suspension agent containing indoxacarb as an active ingredient, including a grinding cylinder (1), characterized in that, A grinder (2) is rotatably installed inside the grinding cylinder (1), and the gap between the grinder (2) and the grinding cylinder (1) gradually decreases from top to bottom. A reciprocating lead screw (3) is coaxially connected to the bottom of the grinder (2). The bottom of the grinding cylinder (1) is communicated with an extrusion pipe (7). A plurality of guide rails (4) are fixedly connected to the inner wall of the extrusion cavity (702) of the extrusion pipe (7), and a piston (5) is slidably installed on the plurality of guide rails (4) together. A guide block (6) is horizontally and rotatably installed on the piston (5), and the guide block (6) is snapped into the guide groove of the reciprocating lead screw (3). The piston (5) is attached to the inner wall of the extrusion cavity (702) of the extrusion pipe (7). The bottom of the extrusion pipe (7) is communicated with a screening box (9). A first screen (11) and a second screen (12) are installed in the screening box (9) from top to bottom, and the mesh of the first screen (11) is larger than that of the second screen (12). The return cavity (901) of the screening box (9) is communicated with the inner cavity of the grinding cylinder (1).

2. The grinding device of a suspension agent containing indoxacarb as an active ingredient according to claim 1, characterized in that, The inner cavity of the extrusion pipe (7) is composed of a cylindrical storage cavity (701) and an extrusion cavity (702) that are coaxial, and the diameter of the storage cavity (701) is larger than that of the extrusion cavity (702).

3. The grinding device for the suspension agent containing indoxacarb as an active ingredient according to claim 1, characterized in that, A horizontal shaft extends from the inner ring wall of the piston (5), and the horizontal shaft is rotatably connected to the guide block (6).

4. The grinding device of a suspension agent containing indoxacarb as an active ingredient according to claim 1, characterized in that, The top of the reciprocating lead screw (3) is threadedly connected to the grinder (2), and a part of the cross-section of the reciprocating lead screw (3) is regular hexagon.

5. The grinding device of a suspension agent containing indoxacarb as an active ingredient according to claim 1, characterized in that, A corrugated pipe (8) is commonly communicated between the extrusion pipe (7) and the screening box (9).

6. The grinding device of a suspension agent containing indoxacarb as an active ingredient according to claim 1, characterized in that, Both the first screen (11) and the second screen (12) are obliquely inserted, and the inclination directions of the first screen (11) and the second screen (12) are opposite.

7. The grinding device of a suspension agent containing indoxacarb as an active ingredient according to claim 6, wherein Sockets (10) adapted to the frames of the first screen (11) and the second screen (12) are fixedly connected to the inner wall of the screening box (9). Rotating shafts (14) are fixedly connected to two opposite outer walls of the screening box (9). Each rotating shaft (14) is rotatably connected to a wrench pressing plate (15), and the two wrench pressing plates (15) are respectively attached to the top frame parts of the first screen (11) and the second screen (12).

8. The grinding device for the suspension agent containing indoxacarb as an active ingredient according to claim 1, wherein, Discharge hoppers (13) are communicated with both the return cavity (901) and the collection cavity (902) of the screening box (9), and the discharge hopper (13) communicated with the return cavity (901) is communicated with a return hose (16), and the return hose (16) is communicated with the inner cavity of the grinding cylinder (1).

9. The grinding device of a suspension agent containing indoxacarb as an active ingredient according to claim 1, characterized in that, The top opening of the grinding cylinder (1) is covered with a top cover (17). A feeding hopper (19) communicated with the inner cavity of the grinding cylinder (1) is installed on the top cover (17). A driving motor (18) coaxially and fixedly connected to the grinder (2) is fixedly installed on the top of the top cover (17).

10. The grinding device of a suspension agent containing indoxacarb as an active ingredient according to claim 1, characterized in that, An installation frame (23) is fixedly sleeved outside the grinding cylinder (1). A connecting seat (21) is fixedly installed on each of the two sides of the screening box (9), and each connecting seat (21) is fixedly sleeved with a spring (22). Each spring (22) is inserted into the extension cylinder at the bottom of the installation frame (23). A vibrator (20) is fixedly connected to the outer wall of the screening box (9).

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