Airflow pulverizer for producing pesticide dry suspending agent

Abstract

This invention relates to the field of dry suspension production technology, and more particularly to an airflow pulverizer for producing pesticide dry suspensions. The pulverizer includes an airflow pulverizing tank and a preliminary pulverizing tank, and further includes a preliminary pulverizing component and an airflow pulverizing component disposed between the airflow pulverizing tank and the preliminary pulverizing tank. The bottom of the airflow pulverizing tank is fixedly connected to a discharge pipe, and the top of the preliminary pulverizing tank is fixedly connected to a feed hopper. This invention, through the preliminary pulverizing of the dry suspension raw materials in the preliminary pulverizing tank, effectively reduces the difficulty of pulverizing the raw materials within the airflow pulverizing tank. Subsequently, under the action of the high-pressure nozzles oscillating back and forth within the airflow pulverizing tank, the range of airflow sprayed by each high-pressure nozzle is increased, thereby enabling repeated multi-directional impact on the dry suspension raw materials within the airflow pulverizing tank, improving the crushing efficiency and effectiveness of the dry suspension raw materials.

Description

Technical Field

[0001] This invention relates to the field of dry suspension production technology, and in particular to an airflow pulverizer for producing pesticide dry suspensions. Background Technology

[0002] Pesticide technical materials generally cannot be used directly; they need to be processed and formulated into various types of formulations before use. Dry suspension concentrates consist of technical materials, dispersants, wetting agents, and other adjuvants. They are first prepared into a suspension using water as a medium through sand milling, and then the solid particles are obtained through a spray drying tower. Before use, they are diluted with water to form a suspension. Air jet mills are machines that pulverize large-scale solid raw materials to the required size. The mill consists of coarse crushing, fine crushing, and pneumatic conveying devices, achieving the pulverization purpose through high-speed impact.

[0003] However, in existing air jet mills, the air jet direction is fixed, which cannot impact the dry suspension raw materials in multiple directions. This makes it difficult to pulverize the dry suspension raw materials. In addition, the raw materials are usually poured directly into the mill without pre-pulverization, so some larger particles are not easily broken up by the air jet, thus reducing the production efficiency of pesticide dry suspensions. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the background art by proposing an airflow pulverizer for the production of pesticide dry suspensions.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An air jet mill for producing pesticide dry suspensions includes an air jet milling tank and a primary milling tank, and further includes a primary milling component and an air jet milling component disposed between the air jet milling tank and the primary milling tank.

[0007] The bottom of the airflow pulverizer is fixedly connected to a discharge pipe, and the top of the primary pulverizer is fixedly connected to a feed hopper.

[0008] The airflow pulverizing assembly includes a half gear rotatably mounted on the surface of a preliminary pulverizing tank. A motor for driving the half gear is fixedly mounted on the rear side of the preliminary pulverizing tank. A rectangular frame is provided around the half gear. A first rack is fixedly mounted on the inner top and bottom walls of the rectangular frame, and the first rack meshes with or separates from the half gear. A second rack is fixedly mounted on the bottom of the rectangular frame via a connecting rod. A full gear meshes with the lower side of the second rack. A hollow cylinder that movably passes through the axis of the airflow pulverizing tank is fixedly mounted coaxially with the full gear. An air inlet pipe is fixedly connected to one end of the hollow cylinder extending to the other side of the airflow pulverizing tank. An arc-shaped distributor is fixedly connected to the outer side of the section of the hollow cylinder extending into the airflow pulverizing tank via a connecting pipe. Multiple high-pressure nozzles are fixedly connected to the side of the distributor near the connecting pipe.

[0009] The side wall of the connecting rod is slidably permeated by a dovetail strip, and the dovetail strip is fixedly installed on the surface of the airflow pulverizing tank. The side wall of the connecting rod is provided with a dovetail groove that is slidably connected to the dovetail strip.

[0010] Preferably, the preliminary crushing assembly includes a drive shaft coaxially and fixedly connected to the half gear, and the drive shaft extends through the surface of the preliminary crushing tank and is fixed to the drive end of the motor. A plurality of crushing blades are fixedly installed on a section of the drive shaft extending into the preliminary crushing tank.

[0011] Preferably, an electric push rod is fixedly installed on the surface of the hollow cylinder, and the drive end of the electric push rod is fixedly installed on the upper surface of the arc-shaped distributor, and the connecting pipe is a flexible hose.

[0012] Preferably, two fixing rods are fixedly mounted on the surface of the drive shaft, and an arc-shaped control plate is fixedly mounted on the other end of the two fixing rods, and the arc-shaped control plate slides against the inner surface of the preliminary crushing tank.

[0013] Preferably, a U-shaped pipe is fixedly connected to the rear side of the airflow pulverizing tank and the preliminary pulverizing tank, and a suction pipe is fixedly connected to the surface of the U-shaped pipe.

[0014] Preferably, two fixing plates are symmetrically fixedly installed at the bottom of the airflow pulverizer, and a fixing seat is fixedly installed at the bottom end of the two fixing plates.

[0015] Preferably, an arc-shaped filter plate is fixedly installed at the connection between the airflow pulverizer and the preliminary pulverizer, and the center of the arc-shaped filter plate is the same as that of the preliminary pulverizer.

[0016] Preferably, a plurality of conical spikes are fixedly installed on the inner top wall of the airflow pulverizer.

[0017] Compared with existing technologies, the advantages of the air jet mill for producing pesticide dry suspensions provided by this invention are as follows:

[0018] 1. The motor controls the drive shaft to rotate, so that multiple crushing blades can initially crush the raw materials. Then, the small particles of raw materials are filtered into the airflow pulverizer through the arc-shaped filter plate, which can effectively reduce the difficulty of crushing the raw materials in the airflow pulverizer.

[0019] 2. When the drive shaft rotates, it drives the half gear to intermittently mesh with the two first racks in the rectangular frame, causing the rectangular frame to move back and forth. Thus, under the transmission of the connecting rod, the second rack and the full gear, the spray angle of each high-pressure nozzle can swing back and forth, increasing the range of the airflow sprayed by each high-pressure nozzle. This allows the dry suspension material in the airflow pulverizer to be repeatedly impacted in multiple directions, improving the crushing efficiency and effect of the dry suspension material.

[0020] 3. By connecting the suction pipe to an external suction machine, the powder generated during the crushing process can be extracted, which can reduce the volatilization of pesticide dry suspension into the air;

[0021] In summary, this invention effectively reduces the difficulty of pulverizing dry suspension raw materials in the airflow pulverizer by using a preliminary pulverizing tank. Subsequently, under the action of the high-pressure nozzles that swing back and forth in the airflow pulverizer, the range of airflow sprayed by each high-pressure nozzle is increased, thereby enabling the dry suspension raw materials in the airflow pulverizer to be repeatedly impacted in multiple directions, improving the crushing efficiency and effect of the dry suspension raw materials. Attached Figure Description

[0022] Figure 1 This is a first-view structural schematic diagram of an air jet mill for producing pesticide dry suspensions proposed in this invention.

[0023] Figure 2 This is a cross-sectional view of an air jet mill for producing pesticide dry suspensions proposed in this invention;

[0024] Figure 3 This is a second-view structural schematic diagram of an air jet mill for producing pesticide dry suspensions proposed in this invention;

[0025] Figure 4 This is a schematic diagram of the connection between the airflow pulverizing component and the preliminary pulverizing component in an airflow pulverizer for producing pesticide dry suspensions proposed in this invention.

[0026] Figure 5 This is a partial structural schematic diagram of an air jet mill for producing pesticide dry suspensions proposed in this invention.

[0027] In the diagram: 1. Airflow pulverizer, 2. Discharge pipe, 3. Preliminary pulverizer, 4. Feed hopper, 5. Half gear, 6. Rectangular frame, 7. First rack, 8. Connecting rod, 9. Second rack, 10. Full gear, 11. Connecting pipe, 12. Arc-shaped distributor, 13. High-pressure nozzle, 14. Air inlet pipe, 15. Motor, 16. Drive shaft, 17. Pulverizing blade, 18. Dovetail strip, 19. Electric push rod, 20. Fixing rod, 21. Arc-shaped control panel, 22. U-shaped tube, 23. Suction pipe, 24. Fixing plate, 25. Fixing base, 26. Filter plate, 27. Conical spike, 28. Hollow cylinder. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] Reference Figures 1-5 An air jet mill for producing pesticide dry suspensions includes an air jet milling tank 1 and a primary milling tank 3. Two fixing plates 24 are symmetrically fixedly installed at the bottom of the air jet milling tank 1. The bottom ends of the two fixing plates 24 are fixedly installed with a fixing seat 25. An arc-shaped filter plate 26 is fixedly installed at the connection between the air jet milling tank 1 and the primary milling tank 3. The arc-shaped filter plate 26 has the same center as the primary milling tank 3. The arc-shaped filter plate 26 allows small particles of raw material to fall into the air jet milling tank 1, while the raw material that does not pass through the arc-shaped filter plate 26 will continue to remain in the primary milling tank 3 and be repeatedly crushed, thereby improving the crushing effect and ensuring that the raw material entering the air jet milling tank 1 is all small particles.

[0030] It also includes a preliminary crushing component and a preliminary crushing component disposed between the airflow crushing tank 1 and the preliminary crushing tank 3; the bottom of the airflow crushing tank 1 is fixedly connected to the discharge pipe 2, and the top of the preliminary crushing tank 3 is fixedly connected to the feed hopper 4. The preliminary crushing component includes a drive shaft 16 coaxially fixedly connected to the half gear 5, and the drive shaft 16 movably passes through the surface of the preliminary crushing tank 3 and is fixed to the drive end of the motor 15. A number of crushing blades 17 are fixedly installed on a section of the drive shaft 16 extending into the preliminary crushing tank 3. The drive shaft 16 is rotated by the motor 15, so that the multiple crushing blades 17 can perform preliminary crushing on the raw materials, crushing them into smaller particles, so as to reduce the crushing difficulty of the raw materials by the airflow crushing tank 1.

[0031] Two fixing rods 20 are fixedly mounted on the surface of the drive shaft 16. An arc-shaped control plate 21 is fixedly mounted on the other end of the two fixing rods 20. The arc-shaped control plate 21 slides against the inner surface of the primary crushing tank 3. When the drive shaft 16 rotates, the arc-shaped control plate 21 can be driven to rotate synchronously through the two fixing rods 20. This allows the arc-shaped control plate 21 to pass through the port of the feed hopper 4 intermittently, so that the raw material can enter the primary crushing tank 3 intermittently, preventing it from accumulating too much in the primary crushing tank 3 and increasing the difficulty of crushing the raw material by the crushing blade 17.

[0032] The airflow pulverizing assembly includes a half gear 5 rotatably mounted on the surface of the primary pulverizing tank 3. A motor 15 for driving the half gear 5 is fixedly mounted on the rear side of the primary pulverizing tank 3. A rectangular frame 6 is provided around the half gear 5. A first rack 7 is fixedly mounted on the inner top and bottom walls of the rectangular frame 6, and the first rack 7 meshes with or separates from the half gear 5. A second rack 9 is fixedly mounted on the bottom of the rectangular frame 6 through a connecting rod 8. A full gear 10 meshes with the lower side of the second rack 9. A hollow cylinder 28 is coaxially fixedly mounted on the surface of the full gear 10, which movably passes through the axis of the airflow pulverizing tank 1. An air inlet pipe 14 is fixedly connected to one end of the hollow cylinder 28 extending to the other side of the airflow pulverizing tank 1. An arc-shaped diverter 12 is fixedly connected to the outer side of the section of the hollow cylinder 28 extending into the airflow pulverizing tank 1 through a connecting pipe 11. Multiple high-pressure nozzles 13 are fixedly connected to one side of the connecting pipe 11. When the drive shaft 16 rotates, it drives the half gear 5 to intermittently mesh with the two first racks 7 in the rectangular frame 6, which can drive the rectangular frame 6 to move back and forth. Then, under the sliding limit of the dovetail groove on the connecting rod 8 and the dovetail strip 18 on the surface of the airflow pulverizing tank 1, it drives the second rack 9 to move back and forth synchronously. Then, under the transmission of the full gear 10 meshing with it, the hollow cylinder 28 can drive the arc-shaped diverter 12 to slide back and forth at the bottom of the airflow pulverizing tank 1, so that the spray angle of each high-pressure nozzle 13 swings back and forth, increasing the range of the airflow sprayed by each high-pressure nozzle 13. This allows the dry suspension material in the airflow pulverizing tank 1 to be repeatedly impacted in multiple directions, improving the crushing efficiency and effect of the dry suspension material.

[0033] The side wall of the connecting rod 8 is slidably penetrated by a dovetail strip 18, and the dovetail strip 18 is fixedly installed on the surface of the airflow pulverizer 1. The side wall of the connecting rod 8 is provided with a dovetail groove that is slidably connected to the dovetail strip 18, which serves to limit the position of the connecting rod 8.

[0034] Furthermore, a U-shaped pipe 22 is fixedly connected to the rear side of both the airflow pulverizer 1 and the preliminary pulverizer 3. A suction pipe 23 is fixedly connected to the surface of the U-shaped pipe 22. The suction pipe 23 is connected to an external suction machine, which can extract the powder generated during the pulverization process to reduce the volatilization of pesticide dry suspension into the air.

[0035] Furthermore, multiple conical spikes 27 are fixedly installed on the inner top wall of the airflow pulverizer 1. When the raw material in the airflow pulverizer 1 is impacted by the airflow, it can also collide with the conical spikes 27 and be impacted again, further improving the crushing effect on the raw material.

[0036] Furthermore, an electric push rod 19 is fixedly installed on the surface of the hollow cylinder 28, and the drive end of the electric push rod 19 is fixedly installed on the upper surface of the arc-shaped diverter 12. The connecting pipe 11 is a flexible hose. After the crushing is completed, the electric push rod 19 is controlled to pull the arc-shaped diverter 12 upward, so that the powdered raw material in the airflow crushing tank 1 after crushing is discharged from the discharge pipe 2.

[0037] The working principle of this invention is as follows:

[0038] When in use, the raw materials of the pesticide dry suspension to be prepared are poured into the feed hopper 4. At the same time, the motor 15 is started to control the drive shaft 16 to rotate, so that multiple crushing blades 17 can initially crush the raw materials. Then, the small particles of raw materials are filtered into the airflow pulverizer 1 through the arc-shaped filter plate 26.

[0039] When the drive shaft 16 rotates, it drives the half gear 5 to intermittently mesh with the two first racks 7 in the rectangular frame 6, which in turn drives the rectangular frame 6 to move back and forth. Then, under the sliding limit of the dovetail groove on the connecting rod 8 and the dovetail strip 18 on the surface of the airflow pulverizer 1, it drives the second rack 9 to move back and forth synchronously. Then, under the transmission of the full gear 10 that meshes with it, the hollow cylinder 28 drives the arc-shaped diverter 12 to slide back and forth at the bottom of the airflow pulverizer 1, which causes the spray angle of each high-pressure nozzle 13 to swing back and forth, increasing the range of the airflow sprayed by each high-pressure nozzle 13, thereby enabling the dry suspension raw material in the airflow pulverizer 1 to be repeatedly impacted and crushed in multiple directions.

[0040] The suction pipe 23 is connected to an external suction machine, which can extract the powder generated during the crushing process to reduce the volatilization of pesticide dry suspension into the air. After crushing, the electric push rod 19 is controlled to pull the arc-shaped diverter 12 upward, so that the crushed powdery raw material in the airflow crushing tank 1 is discharged from the discharge pipe 2.

[0041] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An air jet mill for producing pesticide dry suspensions, characterized in that, It includes an airflow pulverizer (1) and a preliminary pulverizer (3), and also includes a preliminary pulverizing component and an airflow pulverizing component disposed between the airflow pulverizer (1) and the preliminary pulverizer (3); The bottom of the airflow pulverizer (1) is fixedly connected to the discharge pipe (2), and the top of the preliminary pulverizer (3) is fixedly connected to the feed hopper (4). The airflow pulverizing assembly includes a half gear (5) rotatably mounted on the surface of a preliminary pulverizing tank (3). A motor (15) for driving the half gear (5) is fixedly mounted on the rear side of the preliminary pulverizing tank (3). A rectangular frame (6) is provided around the half gear (5). A first rack (7) is fixedly mounted on both the inner top wall and the inner bottom wall of the rectangular frame (6), and the first rack (7) meshes with or separates from the half gear (5). A second rack (9) is fixedly mounted on the bottom of the rectangular frame (6) through a connecting rod (8). The second rack (9) has... A full gear (10) meshes on the lower side. A hollow cylinder (28) that moves through the shaft of the airflow pulverizer (1) is fixedly installed on the coaxial side of the full gear (10). An air inlet pipe (14) is fixedly connected to one end of the hollow cylinder (28) that extends to the other side of the airflow pulverizer (1). An arc-shaped diverter (12) is fixedly connected to the outer side of the section of the hollow cylinder (28) that extends into the airflow pulverizer (1) through a connecting pipe (11). Multiple high-pressure nozzles (13) are fixedly connected to the side of the arc-shaped diverter (12) near the connecting pipe (11). The side wall of the connecting rod (8) is slidably penetrated by a dovetail strip (18), and the dovetail strip (18) is fixedly installed on the surface of the airflow pulverizer (1). The side wall of the connecting rod (8) is provided with a dovetail groove that is slidably connected to the dovetail strip (18).

2. The air jet mill for producing pesticide dry suspensions according to claim 1, characterized in that, The preliminary crushing assembly includes a drive shaft (16) that is coaxially and fixedly connected to the half gear (5), and the drive shaft (16) extends through the surface of the preliminary crushing tank (3) and is fixed to the drive end of the motor (15). A plurality of crushing blades (17) are fixedly installed on a section of the drive shaft (16) extending into the preliminary crushing tank (3).

3. The air jet mill for producing pesticide dry suspensions according to claim 1, characterized in that, An electric push rod (19) is fixedly installed on the surface of the hollow cylinder (28), and the driving end of the electric push rod (19) is fixedly installed on the upper surface of the arc-shaped diverter (12). The connecting pipe (11) is a flexible hose.

4. The air jet mill for producing pesticide dry suspensions according to claim 2, characterized in that, Two fixing rods (20) are fixedly installed on the surface of the drive shaft (16). An arc-shaped control plate (21) is fixedly installed at the other end of the two fixing rods (20), and the arc-shaped control plate (21) slides against the inner surface of the preliminary crushing tank (3).

5. The air jet mill for producing pesticide dry suspensions according to claim 1, characterized in that, The rear sides of the airflow pulverizer (1) and the preliminary pulverizer (3) are fixedly connected to a U-shaped pipe (22), and the surface of the U-shaped pipe (22) is fixedly connected to a suction pipe (23).

6. The air jet mill for producing pesticide dry suspensions according to claim 1, characterized in that, Two fixing plates (24) are symmetrically fixedly installed at the bottom of the airflow pulverizer (1), and a fixing seat (25) is fixedly installed at the bottom end of the two fixing plates (24).

7. The air jet mill for producing pesticide dry suspensions according to claim 1, characterized in that, An arc-shaped filter plate (26) is fixedly installed at the connection between the airflow pulverizer (1) and the preliminary pulverizer (3), and the arc-shaped filter plate (26) has the same center as the preliminary pulverizer (3).

8. The air jet mill for producing pesticide dry suspensions according to claim 1, characterized in that, Multiple conical spikes (27) are fixedly installed on the inner top wall of the airflow pulverizer (1).

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