Pesticide intermediate dispersing device

Abstract

The utility model provides a pesticide intermediate dispersing device which comprises a dispersing tank and a stirring mechanism connected to the dispersing tank, and a first feeding port and a second feeding port are formed in a top cover and the side wall of the dispersing tank respectively; the stirring mechanism comprises a rotating motor mounted at the upper part of a top cover of the dispersing tank and a stirring shaft penetrating and extending into the dispersing tank, the upper part of the stirring shaft is connected with a scattering rod, the lower end of the stirring shaft is connected with a stirring piece, and a sieve plate is arranged at the upper part of a cavity of the dispersing tank; a through hole allowing the stirring shaft to penetrate through is formed in the center of the sieve plate, and the bottom face of the scattering rod is attached to the upper surface of the sieve plate. According to the pesticide intermediate dispersing device provided by the invention, through combination of the sieve plate and the dispersing rod and cooperation with the efficient stirring mechanism, more effective dispersion of pesticide intermediates is realized, and the problems of non-uniform dispersion and low efficiency in a traditional method are solved.

Description

Technical Field

[0001] This application relates to the field of pesticide production technology, specifically to a pesticide intermediate dispersion device. Background Technology

[0002] Pesticide intermediates are key raw materials used in pesticide production, and can be further converted into pesticide active ingredients with insecticidal, herbicidal, or fungicidal functions through further chemical reactions. During subsequent synthesis reactions or formulation processing, pesticide intermediates need to be uniformly dispersed in a medium. For pesticide intermediates that are poorly soluble or insoluble in the medium, dispersants are needed to improve the uniformity of dispersion.

[0003] However, in actual production, storage, and transportation, many pesticide intermediates in powder or granular form, especially those with a certain degree of hygroscopicity, often clump together (or agglomerate, caking). Particles on the surface of the agglomerate preferentially adsorb the dispersant, while particles inside the agglomerate, due to being encapsulated, cannot fully contact the dispersant, resulting in uneven adsorption. The unadsorbed particles are difficult to dissociate during subsequent dispersion, ultimately forming agglomerates that remain in the pesticide formulation.

[0004] To address the clumping problem, existing technologies typically employ methods such as increasing stirring intensity, extending dispersion time, or increasing the amount of dispersant. However, these measures have significant limitations, failing to ensure that all primary particles are adequately wetted and stabilized, resulting in low dispersion efficiency and unstable product quality. Utility Model Content

[0005] The purpose of this invention is to provide a pesticide intermediate dispersion device. By combining a sieve plate and a dispersing rod with a high-efficiency stirring mechanism, the pesticide intermediate is dispersed more effectively, solving the problems of uneven dispersion and low efficiency in traditional methods.

[0006] This application is achieved through the following technical solution, specifically:

[0007] A pesticide intermediate dispersion device includes: a dispersion tank and a stirring mechanism connected to the dispersion tank. The top cover and side wall of the dispersion tank are respectively provided with a first feed inlet and a second feed inlet. The stirring mechanism includes a rotary motor installed on the top cover of the dispersion tank and a stirring shaft extending through into the interior of the dispersion tank. A dispersing rod is connected to the upper part of the stirring shaft and a stirring element is connected to the lower end. A sieve plate is provided on the upper part of the cavity of the dispersion tank. A through hole is provided in the center of the sieve plate to allow the stirring shaft to pass through, and the bottom surface of the dispersing rod is in contact with the upper surface of the sieve plate.

[0008] In this scheme, a dispersing rod structure that fits into the sieve plate is set at the top of the dispersion tank. The high-frequency impact between the dispersing rod and the sieve plate when the stirring shaft rotates can effectively break up agglomerated materials and prevent large particles from directly entering the lower dispersion area, so that both the surface and internal particles of the agglomerated materials are fully exposed to the dispersant. At the same time, the first feed port of the top cover and the second feed port of the side wall allow for the stepwise addition of pesticide intermediates and dispersants. The agglomerated materials are first disintegrated into primary particles by the dispersing rod before contacting the dispersant. Combined with the mixing action of the stirring components at the bottom, it is ensured that the surface of all particles is uniformly adsorbed with dispersant. This solves the problem of uneven adsorption of dispersant and low dispersion efficiency caused by agglomeration in the existing technology, achieves efficient and uniform dispersion, reduces the amount of dispersant used, and improves the quality stability of pesticide formulations.

[0009] As an improvement to the sieve plate in this application, the upper surface of the sieve plate is inclined downward along the radial direction from the outside to the inside.

[0010] As an improvement to the dispersion tank in this application, an annular plate is also provided in the cavity of the dispersion tank, and the annular plate is located in the cavity between the sieve plate and the stirring element.

[0011] Furthermore, the upper surface of the annular plate slopes downward radially from the outside to the inside.

[0012] Furthermore, the second feed inlet is located on the side wall between the sieve plate and the annular plate, and the second feed inlet is inclined downward.

[0013] As an improvement of this application, the pesticide intermediate dispersion device further includes a lifting mechanism connected to one side of the stirring mechanism.

[0014] Furthermore, the lifting mechanism includes a base and a bracket connected to the upper part of the base. A lifting platform is installed inside the bracket. A nut seat that is rotatably connected to the lead screw is provided on the lifting platform. One side of the lifting platform extends out from the bracket and is engaged with the lower end of the rotary motor.

[0015] The beneficial effects of this application are as follows:

[0016] The solution of this application uses a dispersing rod structure attached to the sieve plate at the top of the dispersion tank. Utilizing the high-frequency impact between the dispersing rod and the sieve plate during the rotation of the stirring shaft, agglomerated materials are effectively broken up, preventing large particles from directly entering the lower dispersion zone. This ensures that both the surface and internal particles of the agglomerated material are fully exposed to the dispersant. Simultaneously, the first feed inlet on the top cover and the second feed inlet on the side wall allow for the stepwise addition of pesticide intermediates and dispersant. The dispersing rod first breaks down the agglomerated material into primary particles before they come into contact with the dispersant. Combined with the mixing action of the lower stirring element, this ensures that all particle surfaces are uniformly adsorbed with the dispersant. This solves the problems of uneven dispersant adsorption and low dispersion efficiency caused by agglomeration in existing technologies, achieving efficient and uniform dispersion, reducing the amount of dispersant used, and improving the quality stability of pesticide formulations.

[0017] In addition to the technical problems solved by this utility model, the technical features constituting the technical solution, and the advantages brought about by the technical features of these technical solutions as described above, other technical problems that this utility model can solve, other technical features contained in the technical solution, and the advantages brought about by these technical features will be further explained in detail with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a pesticide intermediate dispersion device according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of another pesticide intermediate dispersion device in the embodiments of this application.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Dispersion tank; 2. Stirring mechanism; 11. Top cover; 12. First feed inlet; 13. Second feed inlet; 14. Sieve plate; 15. Annular plate; 21. Rotary motor; 22. Stirring shaft; 221. Dispersing rod; 222. Stirring component; 3. Lifting mechanism; 31. Base; 32. Support; 321. Lifting platform; 33. Lead screw. Detailed Implementation

[0022] The following will be combined with the appendix Figures 1-2 The embodiments of the technical solution of this application are described in detail below. The following embodiments are only used to more clearly illustrate the technical solution of this application, and are therefore merely examples and should not be used to limit the scope of protection of this application. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] In view of the problems existing in the background technology or products, Figure 1 A schematic diagram of a pesticide intermediate dispersion device according to an embodiment of this application is shown. Figure 1As shown, this application provides a pesticide intermediate dispersion device, including: a dispersion tank 1 and a stirring mechanism 2 connected to the dispersion tank 1. The top cover 11 and the side wall of the dispersion tank 1 are respectively provided with a first feed inlet 12 and a second feed inlet 13.

[0024] The stirring mechanism 2 includes a rotary motor 21 installed on the top cover 11 of the dispersion tank 1 and a stirring shaft 22 extending through into the interior of the dispersion tank 1. The upper part of the stirring shaft 22 is connected to a dispersing rod 221, and the lower end is connected to a stirring element 222. A sieve plate 14 is provided on the upper part of the cavity of the dispersion tank 1. The center of the sieve plate 14 is provided with a through hole that allows the stirring shaft 22 to pass through, and the bottom surface of the dispersing rod 221 is in contact with the upper surface of the sieve plate 14.

[0025] Specifically, the dispersion tank 1 is provided with a cavity for containing materials and liquid media. A first inlet 12 is opened on its top cover 11 for adding pesticide intermediates in powder or granular form, and a second inlet 13 is opened on its side wall for adding liquid media or dispersant solutions. One or more dispersing rods 221 are connected to the upper part of the stirring shaft 22 to disperse the agglomerated pesticide intermediates on the sieve plate 14. A stirring element 222, such as a stirring paddle or high-shear rotor, is connected to the lower end of the stirring shaft 22 for mixing and stirring, located in the lower region of the cavity of the dispersion tank 1. Preferably, the upper surface of the sieve plate 14 slopes downward radially from the outside to the inside. The sieve plate 14 has a downward-sloping conical or funnel-shaped surface to encourage the material to slide or roll naturally towards the center area of ​​the sieve plate 14 under the action of gravity, that is, to gather towards the center area of ​​the rotating stirring shaft 22 and the dispersing rod 221, thus avoiding the accumulation of material or the formation of processing dead corners in the sieve plate 14 in areas far from the effective radius of the dispersing rod or in areas with weaker effects.

[0026] In one implementation, an annular plate 15 is further provided in the cavity of the dispersion tank 1, and the annular plate 15 is located in the cavity between the sieve plate 14 and the stirring member 222.

[0027] Specifically, the annular plate 15 is used to prevent the liquid medium or solution containing dispersant in the tank from being violently splashed upwards due to strong eddies and turbulence when the lower agitator 222 rotates at high speed for mixing and dispersion operations. This effectively blocks and guides the liquid back to the mixing area below, and keeps the upper space where the sieve plate 14 and the dispersing rod 221 are located relatively dry.

[0028] Preferably, the upper surface of the annular plate 15 slopes downward radially from the outside to the inside. This downward slope effectively prevents liquid from accumulating or stagnating on the upper surface of the annular plate 15, avoiding the risk of unnecessary wetting, adhesion, or even secondary agglomeration of the material falling from the sieve plate 14 due to accumulated liquid.

[0029] Based on the previous embodiment, preferably, the second feed inlet 13 is opened on the side wall between the sieve plate 14 and the annular plate 15, and the second feed inlet 13 is inclined downward. The inclined second feed inlet 13 can also effectively reduce the bubbles generated during the addition of liquid, avoid the interference of bubbles on the dispersion process, and thus further improve the dispersion efficiency.

[0030] The working principle of this embodiment is as follows:

[0031] First, liquid medium and dispersant are added to dispersion tank 1 through second feed port 13; then, powdered or granular pesticide intermediates are added through first feed port 12 on top cover 11; after falling, the material accumulates on the upper surface of sieve plate 14; the rotary motor 21 is started, driving the stirring shaft 22 to rotate, which in turn drives the upper dispersing rod 221 and the lower stirring element 222 to rotate synchronously; during the rotation of the dispersing rod 221 located above sieve plate 14, a continuous high-frequency shearing, grinding, impact and scraping force is generated between its bottom surface and the upper surface of sieve plate 14. This mechanical force acts on the pesticide intermediate clumps accumulated on sieve plate 14, which can forcibly break and disperse the clumps. The particles are broken down into smaller particles or particles close to their initial size. The sieve plate 14 not only provides a platform for the dispersing rod 221 to act, but also plays a screening role. Only particles that are broken down to a sufficiently small size and can pass through the pores of the sieve plate 14 can fall into the liquid medium below the sieve plate. Larger clumps or particles that are not completely broken down are temporarily blocked above the sieve plate and continue to be acted on by the dispersing rod 221 until they are broken down and pass through the sieve holes. This ensures that the pesticide intermediates entering the lower liquid medium are pre-treated, well-dispersible fine particles, avoiding the problem that the dispersant only coats the surface of the clump and the internal particles cannot be wetted and adsorbed by the entire clump directly entering the liquid.

[0032] Figure 2 This is a schematic diagram of another pesticide intermediate dispersion device according to an embodiment of this application. Figure 2 As shown, in one implementation, the pesticide intermediate dispersion device further includes a lifting mechanism 3 connected to one side of the stirring mechanism 2.

[0033] Preferably, the lifting mechanism 3 includes a base 31 and a bracket 32 ​​connected to the upper part of the base 31. A lifting platform 321 is installed in the bracket 32. A nut seat that is rotatably connected to the lead screw 33 is provided on the lifting platform 321. One side of the lifting platform 321 extends out from the bracket 32 ​​and is engaged with the lower end of the rotary motor 21.

[0034] Specifically, the lifting mechanism 3 is used to adjust the vertical position of the stirring mechanism 2 relative to the dispersion tank 1. When it is necessary to raise or lower the stirring mechanism 2, the screw 33 is driven to rotate. Since the screw 33 and the nut seat on the lifting platform 321 are threadedly engaged, and the lifting platform 321 is restricted to linear motion in the vertical direction within the bracket 32, the rotation of the screw 33 will drive the entire stirring mechanism 2 to rise or fall synchronously with the lifting platform 321, which facilitates the cleaning, maintenance and loading / unloading of materials.

[0035] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "set", "equipped with", "connected", and "installed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pesticide intermediate dispensing apparatus characterized by, include: A dispersion tank (1) and a stirring mechanism (2) connected to the dispersion tank (1), wherein the top cover (11) and the side wall of the dispersion tank (1) are respectively provided with a first feed inlet (12) and a second feed inlet (13); The stirring mechanism (2) includes a rotary motor (21) installed on the top cover (11) of the dispersion tank (1) and a stirring shaft (22) extending through into the interior of the dispersion tank (1). The upper part of the stirring shaft (22) is connected to a dispersing rod (221), and the lower end is connected to a stirring component (222). A sieve plate (14) is provided on the upper part of the cavity of the dispersion tank (1). The center of the sieve plate (14) is provided with a through hole that allows the stirring shaft (22) to pass through, and the bottom surface of the dispersing rod (221) is in contact with the upper surface of the sieve plate (14).

2. A pesticide intermediate dispersing apparatus as claimed in claim 1, wherein, The upper surface of the sieve plate (14) slopes downward radially from the outside to the inside.

3. A pesticide intermediate dispersing apparatus as claimed in claim 1, wherein The dispersion tank (1) is also provided with an annular plate (15) in its cavity, which is located in the cavity between the sieve plate (14) and the stirring element (222).

4. A pesticide intermediate dispersing apparatus as claimed in claim 3, wherein The upper surface of the annular plate (15) slopes downward radially from the outside to the inside.

5. A pesticide intermediate dispensing apparatus as claimed in claim 4, wherein, The second feed inlet (13) is located on the side wall between the sieve plate (14) and the annular plate (15), and the second feed inlet (13) is inclined downward.

6. A pesticide intermediate dispensing apparatus as claimed in claim 1, wherein Also includes: A lifting mechanism (3) is connected to one side of the stirring mechanism (2).

7. A pesticide intermediate dispensing apparatus as claimed in claim 6, wherein, The lifting mechanism (3) includes a base (31) and a bracket (32) connected to the upper part of the base (31). A lifting platform (321) is installed inside the bracket (32). A nut seat that is rotatably connected to the lead screw (33) is provided on the lifting platform (321). One side of the lifting platform (321) extends out from the bracket (32) and is snapped into the lower end of the rotary motor (21).

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