Sand mill for pesticide preparation

Abstract

The utility model relates to the technical field of pesticide preparation production, concretely relates to a sand mill for pesticide preparation, including main part, the inside of main part is divided into sand mill cavity and accommodating cavity through screen cloth, and the outside of main part is equipped with cooling interlayer, sand mill cavity is connected mounting bracket through rotating rod, and mounting bracket connects sand mill subassembly, and sand mill subassembly includes sand mill ball and sand mill disc, sand mill ball connects first connecting rod, and first connecting rod is connected with mounting bracket through universal joint structure, and sand mill disc includes the silica gel buffer layer of upper layer and the sand mill layer of lower layer, and the outer surface of sand mill layer sets up coniform convex, and the upper surface of silica gel buffer layer connects second connecting rod, and second connecting rod is fixedly connected with mounting bracket, the utility model discloses through sand mill ball and sand mill disc cooperation and coordination realizes to the more sufficient contact of raw materials and even grinding, and through cooling interlayer slows down the temperature rise speed in the device, reduces the risk that raw material active ingredient decomposes or deteriorates.

Description

Technical Field

[0001] This utility model relates to the field of pesticide formulation production technology, specifically to a sand mill for pesticide formulation. Background Technology

[0002] Pesticide formulations play a crucial role in controlling pests and diseases and ensuring crop yield and quality. As one of the core pieces of equipment in the pesticide formulation production process, the performance of the sand mill directly affects the quality and production efficiency of the pesticide formulations.

[0003] Utility model patent CN215694634U discloses a sand milling device for pesticide production. By setting up a repositionable sand milling component, it sand mills the raw materials on the grinding screen, improving the grinding coverage. While this solves some problems in the sand milling process to a certain extent, some shortcomings remain in practical applications: First, the grinding uniformity needs improvement. This sand milling device struggles to achieve uniform and thorough grinding of pesticide raw materials with different particle sizes and textures. Some larger particles may not be completely crushed and refined, resulting in uneven particle size distribution in the pesticide formulation, thus affecting its efficacy in actual use. Second, the heat dissipation problem is not effectively solved. The intense friction between the sand milling balls and the raw materials during sand milling generates a large amount of heat. This sand milling device lacks effective heat dissipation measures and cannot dissipate the heat in a timely manner. Excessive temperature not only affects the chemical stability of the pesticide formulation, potentially causing decomposition or deterioration of the active ingredient, reducing the pesticide's activity and control effect, but also may pose safety hazards, threatening production equipment and operators. Utility Model Content

[0004] In view of the technical problems of poor grinding uniformity and insufficient heat dissipation in existing sand milling devices for pesticide formulations, this utility model provides a sand mill for pesticide formulations, which can improve the production quality and efficiency of pesticide formulations and ensure the safety of the production process.

[0005] The technical solution of this utility model is as follows:

[0006] A sand mill for pesticide formulation includes a main body, the interior of which is divided into a sand milling chamber and a receiving chamber by a screen, and the main body is also provided with a feed inlet communicating with the sand milling chamber, and a cooling jacket is provided on the outer side of the main body.

[0007] A mounting frame is connected to the middle of the grinding chamber via a rotating rod. A grinding assembly is connected to the lower surface of the mounting frame. The grinding assembly includes a grinding ball and a grinding disc. A first connecting rod is connected to the grinding ball. The first connecting rod is connected to the mounting frame via a universal joint structure. The grinding disc includes an upper silicone buffer layer and a lower grinding layer. Several conical protrusions are provided on the outer surface of the grinding layer. A second connecting rod is connected to the upper surface of the silicone buffer layer. The second connecting rod is fixedly connected to the mounting frame.

[0008] The bottom of the receiving cavity is provided with a discharge port.

[0009] Furthermore, a removable cover is installed at the feed inlet. After the pesticide formulation sand mill has finished feeding, the cover is placed on the feed inlet to reduce the contact between the pesticide formulation raw materials and the external environment, while preventing dust and splashes caused by sand milling from escaping from the feed inlet and affecting the environment.

[0010] Furthermore, the universal joint structure allows the grinding ball to swing at a 20° angle in all directions.

[0011] Furthermore, the height of the conical protrusions in the abrasive layer is 3-5 mm, the bottom diameter is 2-4 mm, and the spacing between adjacent conical protrusions is 5-8 mm.

[0012] Furthermore, the silicone buffer layer and the abrasive layer are bonded together, and the bonded area is sealed to prevent the pesticide raw materials from seeping in.

[0013] Furthermore, the second connecting rod is detachably connected to the mounting bracket, such as by a threaded connection, to facilitate replacement when the grinding disc becomes worn or damaged.

[0014] The beneficial effects of this utility model are as follows:

[0015] First, the grinding balls are connected to the rotating mounting bracket via a universal joint structure. This universal joint structure allows the grinding balls a certain degree of freedom of movement, resulting in a more complex and varied trajectory during grinding, enabling more comprehensive contact with the raw material and improving grinding uniformity. Second, when encountering larger particles or harder materials, the silicone buffer layer of the grinding disc can undergo elastic deformation, allowing the surface protrusions of the grinding layer to more closely adhere to the material, increasing the contact area and pressure, thus achieving more effective grinding. For smaller particles or softer materials, the silicone buffer layer helps prevent over-grinding. Therefore, the grinding balls and grinding disc work together to achieve more complete contact and uniform grinding of the raw material.

[0016] Meanwhile, the outer side of the main body of this utility model is also provided with a cooling jacket. The cooling water can absorb the heat generated during the sand milling process, slow down the rate of temperature rise inside the device, and reduce the risk of decomposition or deterioration of the effective components of the raw materials. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a sand mill for pesticide formulation in Example 1.

[0019] In the figure, 1-main body, 2-screen, 3-grinding chamber, 4-accommodating chamber, 5-feed inlet, 6-cooling jacket, 7-rotating rod, 8-mounting frame, 9-grinding ball, 10-grinding disc, 11-first connecting rod, 12-silicone buffer layer, 13-grinding layer, 14-second connecting rod. Detailed Implementation

[0020] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0021] Example 1

[0022] like Figure 1As shown, a sand mill for pesticide formulation includes a main body 1. The interior of the main body 1 is divided into a sand milling chamber 3 and a receiving chamber 4 by a screen 2. The main body 1 is also provided with a feed inlet 5 communicating with the sand milling chamber 3. A removable cover plate is provided at the feed inlet 5. A cooling jacket 6 is provided on the outside of the main body 1, and the cooling jacket 6 is connected to a cooling water circulation system. A mounting frame 8 is connected to the middle of the sand milling chamber 3 by a rotating rod 7. Depending on the sand milling needs, the mounting frame 8 can be designed as a disc or a horizontal bar. The rotating rod 7 is connected to the output end of a drive motor. A sand milling assembly is connected to the lower surface of the mounting frame 8. The sand milling assembly includes multiple sand milling balls 9 and multiple sand milling discs 10. A first connecting rod 11 is connected to the sand milling balls 9. The first connecting rod 11 is connected to the mounting frame 8 by a universal joint structure (such as a ball cage universal joint, a ball fork universal joint, etc.). The universal joint structure allows the sand milling balls 9 to swing at an angle of 20° in each direction. Taking a ball cage universal joint as an example, the universal joint structure includes... A spherical shell is set on the lower surface of the mounting frame 8, and a ball cage is installed inside the spherical shell. A connecting ball is set at the end of the first connecting rod 11 and is inserted into the ball cage. A limiting cover is provided on the outside of the spherical shell, which can limit the movement angle of the first connecting rod. The sanding disc 10 includes an upper silicone buffer layer 12 and a lower sanding layer 13. The silicone buffer layer 12 and the sanding layer 13 are bonded together and the bonded joint is sealed. The outer surface of the sanding layer 13 is provided with several conical protrusions. The height of the conical protrusions is 3-5mm, the bottom diameter is 2-4mm, and the distance between adjacent conical protrusions is 5-8mm. The upper surface of the silicone buffer layer 12 is connected to the second connecting rod 14. The second connecting rod 14 is fixed to the lower surface of the mounting frame 8 by a detachable connection method such as a threaded connection. In order to avoid the sanding disc and the sanding ball from affecting each other, the sanding disc 10 and the sanding ball 9 can be kept at a certain distance during installation. A discharge port is provided at the bottom of the receiving cavity 4.

[0023] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sand mill for pesticide formulation, comprising a main body, characterized in that, The main body is divided into a grinding chamber and a receiving chamber by a screen. The main body is also equipped with a feed inlet that communicates with the grinding chamber, and a cooling jacket is provided on the outside of the main body. A mounting frame is connected to the middle of the grinding chamber via a rotating rod. A grinding assembly is connected to the lower surface of the mounting frame. The grinding assembly includes a grinding ball and a grinding disc. A first connecting rod is connected to the grinding ball. The first connecting rod is connected to the mounting frame via a universal joint structure. The grinding disc includes an upper silicone buffer layer and a lower grinding layer. Several conical protrusions are provided on the outer surface of the grinding layer. A second connecting rod is connected to the upper surface of the silicone buffer layer. The second connecting rod is fixedly connected to the mounting frame. The bottom of the receiving cavity is provided with a discharge port.

2. The sand mill for pesticide formulation as described in claim 1, characterized in that, The feed inlet is equipped with a removable cover.

3. The sand mill for pesticide formulation as described in claim 1, characterized in that, The universal joint structure allows the grinding ball to swing at a 20° angle in all directions.

4. The sand mill for pesticide formulation as described in claim 1, characterized in that, The height of the conical protrusions in the abrasive layer is 3-5mm, the bottom diameter is 2-4mm, and the spacing between adjacent conical protrusions is 5-8mm.

5. The sand mill for pesticide formulation as described in claim 1, characterized in that, The silicone buffer layer and the sanding layer are bonded together.

6. The sand mill for pesticide formulation as described in claim 1, characterized in that, The second connecting rod is detachably connected to the mounting bracket.

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