Aqueous preparation anti-lamination stirring dispersion device

Abstract

The utility model relates to related technical field of stirring dispersion equipment especially, a kind of water-containing preparation anti-layering stirring dispersion equipment, including fixed support, the one end of the fixed support is fixedly connected with stirring tank, the other end of the stirring tank is fixedly connected with driving motor, the output of the driving motor is fixedly connected with transmission shaft, the surface of the stirring tank inner wall is fixedly connected with guide plate.This water-containing preparation anti-layering stirring dispersion equipment in the process of use, let effective component particle uniform suspension, when third stirring paddle pushes material to the conical discharge port that is most bottom end with tank inner wall adheres, conical inner wall guides material to form local vortex, drives material in discharge port to reflow upwards, and the axial flow of second stirring paddle is connected, prevent material in discharge port isolated standing.

Description

Technical Field

[0001] This utility model relates to the technical field of stirring and dispersing equipment, and in particular to a stirring and dispersing equipment for preventing the stratification of aqueous preparations. Background Technology

[0002] The 25% ethirimol sulfonate•tebuconazole aqueous formulation, as a highly effective compound pesticide formulation targeting fungal diseases in crops, represents an important research direction in the current green agricultural pesticide application system, combining both control efficacy and environmental compatibility. This formulation, through the synergistic effect of ethirimol sulfonate and tebuconazole, enhances the disease control spectrum and sustained disease control ability. The aqueous formulation reduces the use of organic solvents, minimizing potential impacts on crops and soil, aligning with the trend towards green pesticide formulations. During the key technology development phase, specialized stirring and dispersion equipment is required to achieve efficient dispersion and uniform mixing of the formulation, ensuring the accuracy of key indicators such as component suspension rate and particle size distribution in each batch of trials. This will drive the transformation of the formulation from laboratory research to large-scale application, meeting the agricultural production demand for highly effective and safe pesticide formulations. Therefore, a water-based formulation anti-stratification stirring and dispersion device is particularly needed.

[0003] However, existing mixing and dispersing equipment often suffers from stratification problems during use. This is because some conventional mixing and dispersing devices are not well-suited for mixing aqueous formulations, especially multi-component compound pesticide formulations, due to insufficient structural design and functional adaptability. These devices often employ a single-blade structure, which cannot adapt the mixing force to different density components, leading to phenomena such as the deposition of heavy particles at the bottom, retention of components in the middle layer, and uneven suspension of light components at the top. Furthermore, some conventional mixing and dispersing equipment does not consider the dynamic dispersion requirements of aqueous formulations, and the gap design between the blades and the tank wall / bottom is unreasonable, creating mixing blind zones. Materials in these blind zones remain in a low-disturbance state for extended periods, easily leading to localized stratification due to static or weak mixing, thus affecting the development efficiency of multi-component compound pesticide formulations.

[0004] To address the aforementioned issues, a search revealed that patent CN221753193U discloses a pesticide preparation device. The patent describes "a pesticide preparation device comprising a main shell, with a feed pipe fixedly connected to the top of one side of the main shell, and a discharge pipe fixedly connected to the bottom of one side of the main shell. A servo motor is fixedly mounted on the top of the main shell, and the output end of the servo motor rotates through the interior of the main shell. A stirring rod is fixedly mounted on the output end of the servo motor located inside the main shell, and both sides of the bottom of the outer wall of the stirring rod are fixedly mounted..." Although the "equipped with No. 2 short stirring blades" achieves basic stirring and anti-sedimentation effects through stirring components, lifting components, and curved inclined plates, its main shell has a vertical structure to meet the research and production needs of water-containing compound pesticides. Although the curved inclined plates can push the bottom material upward, it does not have a layered stirring structure designed to adapt to the different densities of active ingredients in compound pesticides. Relying solely on a single dynamic stirring mode makes it difficult to completely break the density gradient between the upper and lower layers. This can easily lead to the local accumulation of heavy components at the bottom layer and uneven suspension of light components at the top layer during the stirring process, making it impossible to achieve a long-term stable anti-sedimentation effect.

[0005] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content

[0006] The purpose of this invention is to provide a stirring and dispersing device for preventing stratification of aqueous formulations, thereby solving the problem mentioned in the background art. In use, some existing stirring and dispersing devices are prone to stratification due to insufficient structural design and functional adaptability when used with aqueous formulations, especially multi-component compound pesticide formulations. These devices often employ a single-blade structure, which cannot adapt the stirring force to different density components, easily leading to the deposition of heavy particles at the bottom, retention of components in the middle layer, and uneven suspension of light components at the top. Furthermore, some ordinary stirring and dispersing devices do not consider the dynamic dispersion requirements of aqueous formulations, and the gap design between the blades and the tank wall / bottom is unreasonable, creating stirring blind zones. Materials in these blind zones remain in a low-disturbance state for extended periods, easily leading to localized stratification due to static or weak stirring, thus affecting the development efficiency of multi-component compound pesticide formulations.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a water-containing preparation anti-stratification stirring and dispersing device, comprising a fixed support, a stirring tank fixedly connected to one end of the fixed support, a drive motor fixedly connected to the other end of the stirring tank, a transmission shaft fixedly connected to the output end of the drive motor, a guide plate fixedly connected to the surface of the inner wall of the stirring tank, a first stirring paddle fixedly connected to one side of the surface of the transmission shaft, a second stirring paddle fixedly connected to the other side of the surface of the transmission shaft, a third stirring paddle fixedly connected to the other side of the surface of the transmission shaft, a cleaning port opened on the other side of the stirring tank, a bolt threadedly connected to one side of the surface of the stirring tank, a sealing ring fitted onto the surface of the cleaning port, and a side plate movably sleeved on one side of the bolt surface.

[0008] Preferably, the mixing tank has a feed inlet at one end and a discharge outlet on one side.

[0009] Preferably, the blades of the first stirring paddle are arranged at an angle, and the material of the first stirring paddle is stainless steel.

[0010] Preferably, the blades of the second stirring paddle are arranged in a spiral shape, and the bottom end of the inner wall surface of the mixing tank is provided with a concave structure that matches the size of the third stirring paddle.

[0011] Preferably, the inner wall of the mixing tank is uniformly distributed with guide plates in the circumferential direction, and the sealing ring is fitted and connected to the side plate.

[0012] Preferably, the surface of the cleaning port is provided with a concave structure that matches the size of the side plate.

[0013] Preferably, the end of the discharge port near the mixing tank is cone-shaped.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: This water-containing formulation anti-stratification stirring and dispersion device employs three layers of differentiated functional stirring paddles working in synergy. The inclined first stirring paddle can generate strong shear force on the upper layer of formulation, breaking up droplets and flocculent matter, and is suitable for the dispersion needs of light components. The spiral second stirring paddle has efficient axial conveying capacity, which can drive the middle layer of formulation to circulate up and down, avoiding component retention. With the concave structure at the bottom of the inner wall of the stirring tank matching the size of the third stirring paddle, the third stirring paddle can closely fit the bottom of the tank to scrape, accurately solving the problem of heavy particle deposition at the bottom, realizing the adaptation of stratification stirring force for components of different densities, and greatly improving the efficiency of multi-component compound pesticide formulation development. Attached Figure Description

[0015] Figure 1 This is a side view of the appearance structure of this utility model; Figure 2 This is a schematic diagram of the structure of the mixing tank and the discharge port of this utility model. Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic diagram of the interaction between the mixing tank and the drive shaft of this utility model; Figure 5 This utility model Figure 4 Enlarged structural diagram at point B.

[0016] In the diagram: 1. Fixed bracket; 2. Mixing tank; 3. Inlet; 4. Outlet; 5. Drive motor; 6. Drive shaft; 7. Guide plate; 8. First agitator; 9. Second agitator; 10. Third agitator; 11. Cleaning port; 12. Bolt; 13. Sealing ring; 14. Side plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-5 This utility model provides a technical solution: a water-containing preparation anti-stratification stirring and dispersing device, including a fixed support 1, a stirring tank 2 fixedly connected to one end of the fixed support 1, a drive motor 5 fixedly connected to the other end of the stirring tank 2, a drive shaft 6 fixedly connected to the output end of the drive motor 5, a guide plate 7 fixedly connected to the surface of the inner wall of the stirring tank 2, a first stirring paddle 8 fixedly connected to one side of the surface of the drive shaft 6, a second stirring paddle 9 fixedly connected to the other side of the surface of the drive shaft 6, a third stirring paddle 10 fixedly connected to the other side of the surface of the drive shaft 6, a cleaning port 11 opened on the other side of the stirring tank 2, and a bolt 12 threadedly connected to one side of the surface of the stirring tank 2. A sealing ring 13 is fitted onto the surface of the bolt 12, and a side plate 14 is movably sleeved on one side of the bolt 12. During use, the fixed bracket 1 provides stable support for the entire equipment and firmly fixes the mixing tank 2 through its rigid structure, preventing the mixing tank 2 from shaking or displacing when the drive motor 5 drives the transmission shaft 6 to rotate at high speed. After the drive motor 5 starts, the power is transmitted to the transmission shaft 6 through the output end, which drives the first stirring paddle 8, the second stirring paddle 9, and the third stirring paddle 10 on the surface of the transmission shaft 6 to rotate synchronously, realizing multi-layer synergistic stirring of the preparation in the tank. Meanwhile, the guide plate 7 on the inner wall of the mixing tank 2 guides the flow direction of the material during the stirring process, breaks the inertia of the material's circumferential motion, and improves the uniformity of stirring.

[0019] Furthermore, a feed inlet 3 is provided at one end of the mixing tank 2, and a discharge outlet 4 is provided on one side of the mixing tank 2. During use, the operator can accurately add water-containing raw materials, such as the active ingredient, dispersant, and water required for the 25% ethirimol sulfonate-tebuconazole formulation, through the feed inlet 3. After the raw materials enter the mixing tank 2 through the feed inlet 3, they fall directly into the mixing area, avoiding the accumulation of raw materials in dead corners inside the tank. The discharge outlet 4 is provided on one side of the mixing tank 2. After the mixing is completed, the valve of the discharge outlet 4 is opened, and the uniformly mixed formulation in the tank can be quickly discharged under the action of gravity, completing the production or test process.

[0020] Furthermore, the blades of the first stirring paddle 8 are arranged at an angle. The first stirring paddle 8 is made of 316L stainless steel. The angled blades of the first stirring paddle 8 can generate stronger shear force on the preparation in the upper layer of the mixing tank 2 when rotating, effectively breaking up any droplets or flocculent matter that may form in the upper layer of the preparation, preventing the preparation from stratifying on the surface. At the same time, the angled blades can push the upper layer of material to the middle layer, promoting convection between the upper and lower layers of material. The 316L stainless steel first stirring paddle 8 can resist the corrosion of chemical components in water-containing preparations, preventing the blades from rusting or the material from leaching and contaminating the preparation. At the same time, the high strength of 316L stainless steel can also ensure that the blades are not easily deformed during long-term rotation, extending their service life.

[0021] Furthermore, the blades of the second stirring paddle 9 are arranged in a spiral shape, and the bottom of the inner wall surface of the mixing tank 2 is provided with a concave structure that matches the size of the third stirring paddle 10. Through the arrangement of the spiral blades of the second stirring paddle 9, it has a stronger axial conveying capacity when rotating, which can directionally convey the preparation in the middle layer of the mixing tank 2 upward or downward, enhance the circulation and exchange of materials in the middle layer, upper layer, and bottom layer, and avoid uneven concentration caused by the retention of materials in the middle layer. Through the arrangement of the mixing tank 2 and the third stirring paddle 10, the third stirring paddle 10 can rotate in close contact with the concave structure, tightly scrape the preparation at the bottom of the mixing tank 2, prevent the preparation at the bottom from depositing and stratifying due to gravity, and at the same time push the material deposited at the bottom upward and merge it with the material in the middle layer to form a complete material circulation in the tank.

[0022] Furthermore, the inner wall of the mixing tank 2 is uniformly distributed with guide plates 7 in the circumferential direction, and the sealing ring 13 is fitted and connected with the side plate 14. Through the setting of the mixing tank 2 and the guide plates 7, the circumferentially distributed guide plates 7 can guide the material flow from multiple directions, avoiding the material from moving only along the circumference of the tank wall, forcing the material to form vertical convection, and improving the mixing uniformity of the preparation in the entire mixing tank 2. Especially for components with large density differences, such as ethirimol sulfonate and tebuconazole, it can effectively break up density stratification. Through the setting of the sealing ring 13 and the side plate 14, when the equipment is running or being cleaned, the sealing ring 13 can fill the gap between the cleaning port 11 and the side plate 14 to prevent the preparation in the tank from leaking or the outside air and impurities from entering the tank and contaminating the preparation. At the same time, the fitted connection structure also facilitates the disassembly and installation of the side plate 14, which is convenient for later maintenance.

[0023] Furthermore, the surface of the cleaning port 11 is provided with a concave structure that matches the size of the side plate 14. Through the setting of the cleaning port 11 and the side plate 14, the concave structure can achieve precise positioning and installation of the side plate 14 and the cleaning port 11, avoiding the sealing failure caused by the installation misalignment of the side plate 14. When the equipment needs to be cleaned, after removing the side plate 14, high-pressure cleaning water or cleaning agent can be introduced into the tank through the cleaning port 11 to specifically rinse the inner wall of the tank, the agitator, the guide plate and other components, ensuring that there are no dead corners in the cleaning. After cleaning, the side plate 14 is reinstalled, and the concave structure can ensure the fit between the side plate 14 and the cleaning port 11, restoring the equipment's sealing performance.

[0024] Furthermore, the end of the discharge port 4 closest to the mixing tank 2 is set in a conical shape. The conical discharge port 4 can eliminate dead space at the discharge port, avoiding residue and stratification of the formulation in the discharge port. At the same time, the conical structure can guide the formulation in the tank to converge towards the center of the discharge port, speeding up the discharge speed and reducing the amount of residue. Especially in small-batch test scenarios, it can reduce the risk of residual formulation contaminating the next batch of formulation and ensure the accuracy of test data.

[0025] Working principle: During use, 25% ethirimol sulfonate-tebuconazole aqueous preparation raw material is first added through the feed inlet 3 at one end of the mixing tank 2; then the drive motor 5 is started, and its output end drives the transmission shaft 6 to rotate. The first stirring blade 8, which is inclined on the surface of the transmission shaft 6, uses large shear force to fully disperse the upper layer of preparation and prevent surface stratification; the spiral-shaped second stirring blade 9, with its strong axial conveying capacity, drives the middle layer of preparation to flow up and down to enhance the overall circulation; the concave structure at the bottom of the inner wall of the mixing tank 2, which matches the size of the third stirring blade 10, enables the third stirring blade 10 to efficiently stir the preparation at the bottom of the tank, avoid bottom sedimentation, and push it upward to form circulation. Meanwhile, the guide plates 7 evenly distributed around the inner wall of the mixing tank 2, in conjunction with each agitator, guide the material to form an orderly convection, allowing the active ingredient particles to be uniformly suspended. When the third agitator 10 pushes the material to the conical discharge port 4 that is in contact with the lowest end of the inner wall of the tank, the inner wall of the cone guides the material to form a local vortex, causing the material in the discharge port 4 to flow upwards and connect with the axial flow of the second agitator 9, preventing the material in the discharge port from being isolated and stationary. After the mixing is completed, the valve of the discharge port 4 on one side of the mixing tank 2 is opened. Because the mixing tank 2 is tilted as a whole, the material is discharged from the conical discharge port 4 under the action of gravity, with a very low residual amount. The pushing and vortex of the third agitator 10 also assist in emptying. During cleaning, the inlet 3 and outlet 4 are closed. The equipment is connected to a high-pressure cleaning device through the cleaning port 11 on the other side of the mixing tank 2. The concave structure of the cleaning port 11 and the fit between the sealing ring 13 and the side plate 14 ensure a tight seal. High-pressure water flows through the tank, and simultaneously, the drive motor 5 is started to rotate the transmission shaft 6 at low speed, causing the first, second, and third agitators to rotate. This allows the water flow to thoroughly flush the blades and inner walls, including the area of ​​the guide plate 7. The flushing wastewater is discharged from the outlet 4, ensuring the equipment remains clean. During the process, bolts 12 secure the side plate 14 to ensure structural stability, and the sealing ring 13 maintains the device's seal to prevent leakage, greatly improving the efficiency of developing multi-component compound pesticide formulations.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stirring and dispersing device for preventing stratification of aqueous preparations, comprising a fixed support (1), characterized in that: One end of the fixed bracket (1) is fixedly connected to the mixing tank (2), and the other end of the mixing tank (2) is fixedly connected to the drive motor (5). The output end of the drive motor (5) is fixedly connected to the transmission shaft (6). The surface of the inner wall of the mixing tank (2) is fixedly connected to the guide plate (7). One side of the surface of the transmission shaft (6) is fixedly connected to the first stirring paddle (8). The other side of the surface of the transmission shaft (6) is fixedly connected to the second stirring paddle (9). The other side of the surface of the transmission shaft (6) is fixedly connected to the third stirring paddle (10). A cleaning port (11) is opened on the other side of the mixing tank (2). A bolt (12) is threadedly connected to one side of the surface of the mixing tank (2). A sealing ring (13) is fitted onto the surface of the cleaning port (11). A side plate (14) is movably sleeved on one side of the surface of the bolt (12).

2. The anti-stratification stirring and dispersing equipment for aqueous preparations according to claim 1, characterized in that: The mixing tank (2) has a feed inlet (3) at one end and a discharge outlet (4) on one side.

3. The anti-stratification stirring and dispersing equipment for aqueous preparations according to claim 1, characterized in that: The blades of the first stirring paddle (8) are arranged in an inclined manner, and the material of the first stirring paddle (8) is 316L stainless steel.

4. The anti-stratification stirring and dispersing equipment for aqueous preparations according to claim 1, characterized in that: The blades of the second stirring paddle (9) are arranged in a spiral shape, and the bottom of the inner wall surface of the stirring tank (2) is provided with a concave structure that matches the size of the third stirring paddle (10).

5. The anti-stratification stirring and dispersing equipment for aqueous preparations according to claim 1, characterized in that: The inner wall of the mixing tank (2) is uniformly distributed with guide plates (7) in the circumferential direction, and the sealing ring (13) is fitted and connected to the side plate (14).

6. The anti-stratification stirring and dispersing equipment for aqueous preparations according to claim 1, characterized in that: The surface of the cleaning port (11) is provided with a concave structure that matches the size of the side plate (14).

7. The anti-stratification stirring and dispersing equipment for aqueous preparations according to claim 2, characterized in that: The discharge port (4) is conical at the end near the mixing tank (2).

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