Homogenizer for pesticide preparation production

Abstract

The utility model relates to the technical field of pesticide production, in particular to a homogenizer for pesticide preparation production, which comprises a kettle body, an upper seal head arranged at the upper end of the kettle body, a motor mounted on the upper seal head through a mounting frame, a motor driving rod connected with a stirring shaft inside the kettle body, a plurality of stirring blades mounted on the stirring shaft, a feed port arranged on the upper seal head, and a feed port arranged on the feed port. A discharging port is formed in the bottom end of the kettle body and connected with a heat medium inlet of a heat exchanger through a first pipeline, a first pump body is arranged on the first pipeline, a heat medium outlet of the heat exchanger is connected with a first connector of a three-way valve through a second pipeline, and a second connector of the three-way valve is connected with the upper portion of the kettle body through a third pipeline. A third connector of the three-way valve is connected with a storage tank through a fourth pipeline, a defoaming agent is stored in the storage tank, and a second pump body is arranged on the fourth pipeline. The device disclosed by the utility model can be used for cooling a preparation in a homogenizing treatment process, so that the damage to active ingredients is reduced, meanwhile, the homogenizing and dispersing effects are improved, and the production process is saved.

Description

Technical Field

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

[0002] Homogenization in pesticide formulation production refers to the process of uniformly mixing the active and auxiliary ingredients in pesticide formulations through physical or mechanical means to achieve an ideal dispersion state. This process is crucial for improving the stability and efficacy of pesticide formulations.

[0003] Existing homogenization methods generally utilize mechanical means such as high-speed shearing and stirring of homogenizers to refine and evenly distribute the particles in pesticide formulations.

[0004] CN104396981B discloses a herbicidal composition containing cyclosulfonone and chlormequat chloride. When the herbicidal composition is in granule form, the weight ratio of each component in the formulation is as follows: active ingredient A (cyclosulfonone) 1-55 parts, active ingredient B (chlormequat chloride) 1-50 parts, wetting and dispersing agent 5-20 parts, thickener 5-15 parts, defoamer 1-5 parts, and castor oil to make up to 100 parts. The components are mixed according to the formula, ground in a sand mill, and then homogenized in a homogenizer to obtain the finished product. The homogenization process of this pesticide formulation is crucial to the quality of the finished product. Existing homogenizers (homogenizers) have the following technical defects in the homogenization process:

[0005] (1) The active ingredients in the formulation, chloromerone and cyclosulfonone, are sensitive to high temperature. During homogenization, high-speed shearing and friction may cause local temperature rise (such as exceeding 40°C), so heat sensitivity protection control is required. In the existing technology, the cooling method is to install a jacket around the homogenizer or install a cooling coil inside. The installation and maintenance are relatively complicated, and the unreasonable design of the internal passage of the cooling mechanism may lead to uneven flow of the cooling medium, thus affecting the cooling effect.

[0006] (2) The castor oil (solvent) component and the solid particles in the formulation have a density difference, which makes them prone to separation under the action of gravity, thus affecting the homogeneous dispersion quality of the formulation.

[0007] (3) The defoamer used in the formulation is an organosilicon defoamer. It may be destroyed during homogenization due to high-speed shearing. Generally, the defoamer is added in the low-speed stage of the later stage of homogenization, which requires opening the feed port flange of the homogenizer again, which means that the production process is extended. Utility Model Content

[0008] To address the technical problems of temperature control difficulties, poor component dispersion, and extended production processes in existing homogenization processes, this invention provides a homogenizer for pesticide formulation production. This homogenizer can cool down the formulation during the homogenization process, reducing damage to active ingredients, improving dispersion, and saving production time.

[0009] This utility model provides a homogenizer for pesticide formulation production, including a vessel body. An upper end cap is provided at the upper end of the vessel body. A motor is mounted on the upper end cap via a mounting bracket. The motor drive rod is connected to a stirring shaft inside the vessel body. Several stirring blades are mounted on the stirring shaft. A feed inlet is provided on the upper end cap, and a discharge outlet is provided at the bottom of the vessel body. The discharge outlet is connected to the heat medium inlet of a heat exchanger via a first pipeline. A first pump body is provided on the first pipeline. The heat medium outlet of the heat exchanger is connected to the first port of a three-way valve via a second pipeline. The second port of the three-way valve is connected to the upper part of the vessel body via a third pipeline. The third port of the three-way valve is connected to a storage tank via a fourth pipeline. The storage tank stores defoamer, and a second pump body is provided on the fourth pipeline.

[0010] Furthermore, the first pipeline is equipped with a first flow meter and a first thermometer. The function of the first flow meter is to monitor the flow rate of the formulation entering the first pipeline online, and the function of the first thermometer is to monitor the temperature of the formulation entering the first pipeline online.

[0011] Furthermore, a first valve is installed on the second pipeline.

[0012] Furthermore, a second thermometer is installed on the third pipeline. Its function is to work in conjunction with the first thermometer to monitor the temperature of the cooled preparation after heat exchange, so as to facilitate the adjustment of the flow rate of the cooling medium into the heat exchanger.

[0013] Furthermore, a second flow meter and a second valve are installed on the fourth pipeline. The second flow meter can monitor the flow rate of the defoamer, thereby obtaining the amount of defoamer added.

[0014] Furthermore, a temperature probe is installed on the inner wall of the reactor. Its function is to monitor the temperature of the formulation liquid inside the reactor in real time, facilitating the determination of whether the homogenization temperature meets the process conditions.

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

[0016] (1) The present invention has a simple structure and can be modified on the existing homogenizer. By drawing out the preparation in the vessel, exchanging heat and cooling it through a heat exchanger, it is returned to the vessel. The cooling is rapid, the cooling effect is improved, and the effect of shear heating on the active ingredients is reduced.

[0017] (2) This invention can draw out the preparation from the bottom and then return it to the upper part of the vessel, thereby achieving full mixing of the upper and lower layers of the preparation and improving the homogeneous dispersion effect.

[0018] (3) The present invention is provided with a defoamer feeding mechanism. This mechanism shares a pipeline with the cooling structure, and the defoamer can be added directly without opening the feed port during the homogenization process, which shortens the process flow, ensures the continuity of homogenization production, and improves production efficiency. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model.

[0021] In the diagram, 1-motor, 2-feed inlet, 3-upper head, 4-stirring shaft, 5-stirring blade, 6-vessel body, 7-discharge port, 8-first pipeline, 9-first flow meter, 10-second flow meter, 11-first pump body, 12-first thermometer, 13-heat exchanger, 14-second pipeline, 15-first valve, 16-three-way valve, 17-third pipeline, 18-second thermometer, 19-mounting bracket, 20-second valve, 21-second pump body, 22-fourth pipeline, 23-storage tank. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] Combination Figure 1This utility model provides a homogenizer for pesticide formulation production, including a vessel body 6. An upper end cap 3 is provided at the upper end of the vessel body 6. A motor 1 is mounted on the upper end cap 3 via a mounting bracket 19. The motor 1 drives a rod connected to a stirring shaft 4 inside the vessel body 6. Several stirring blades 5 are mounted on the stirring shaft 4. A feed inlet 2 is provided on the upper end cap 3, and a discharge outlet 7 is provided at the bottom of the vessel body 6. The discharge outlet 7 is connected to the heat medium inlet of a heat exchanger 13 via a first pipeline 8. A first pump body 11, a first flow meter 9, and a first temperature sensor are provided on the first pipeline 8. The heat medium outlet of the heat exchanger 13 is connected to the first port of the three-way valve 16 via the second pipeline 14. The second pipeline 14 is equipped with a first valve 15. The second port of the three-way valve 16 is connected to the upper part of the vessel body 6 via the third pipeline 17. The third pipeline 17 is equipped with a second thermometer 18. The third port of the three-way valve 16 is connected to the storage tank 23 via the fourth pipeline 22. The storage tank 23 stores defoamer. The fourth pipeline 22 is equipped with a second pump body 21, a second flow meter 10, and a second valve 20.

[0025] In order to monitor the temperature of the preparation liquid inside the vessel 6 in real time during operation and to determine whether the homogenization temperature meets the process conditions, a temperature probe is installed on the inner wall of the vessel 6.

[0026] The working process of this utility model is as follows:

[0027] Open the first valve 15, close the second valve 20, open the feed port 2 on the upper end cap 3, and add 40 parts of cyclosulfonone, 35 parts of green meropenem, 15 parts of wetting and dispersing agent, 10 parts of thickener, and castor oil to make up 100 parts. After grinding, mix them according to the formula ratio and add them to the feed port 2. Turn on the motor 1 to stir the mixture in the vessel 6 at high speed. The temperature probe on the inner wall of the vessel 6 monitors the temperature of the mixture in real time and feeds it back to the external display screen. When the temperature is greater than 40°C, turn on the first pump 11 and introduce cooling water into the heat exchanger 13. The preparation in the first pipeline 8 is cooled by the heat exchanger 13 and then returned to the vessel 6 through the second pipeline 14 and the third pipeline 17. This reduces the temperature of the preparation under high-speed stirring and shearing, effectively preserving the activity of the active ingredients in the preparation. The second thermometer 18 monitors the temperature of the preparation after cooling in real time. When the temperature does not meet the process requirements, the temperature is adjusted by adjusting the amount of cooling water entering the heat exchanger 13.

[0028] During the low-speed stage of homogenization, the first pump body 11 and the first valve 15 are closed, and the second valve 20 and the second pump body 21 are opened to introduce the silicone defoamer stored in the storage tank 23 into the reactor body 6. There is no need to open the feed port 2, which ensures the continuity of homogenization and shortens the production process.

[0029] 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 homogenizer for pesticide formulation production, comprising a vessel body, an upper end cap provided at the upper end of the vessel body, a motor mounted on the upper end cap via a mounting frame, a motor drive rod connected to a stirring shaft inside the vessel body, a plurality of stirring blades mounted on the stirring shaft, a feed inlet provided on the upper end cap, and a discharge outlet provided at the bottom end of the vessel body, characterized in that… The discharge port is connected with the heat medium inlet of the heat exchanger through a first pipeline, a first pump body is arranged on the first pipeline, the heat medium outlet of the heat exchanger is connected with the first interface of a three-way valve through a second pipeline, the second interface of the three-way valve is connected with the upper part of the kettle body through a third pipeline, the third interface of the three-way valve is connected with a storage tank through a fourth pipeline, the storage tank stores a defoaming agent, and a second pump body is arranged on the fourth pipeline.

2. The homogenizer for producing a pesticide formulation according to claim 1, wherein A first flow meter and a first temperature meter are arranged on the first pipeline.

3. The homogenizer for producing a pesticide formulation according to claim 1, wherein A first valve is arranged on the second pipeline.

4. The homogenizer for producing a pesticide formulation according to Claim 1, wherein A second temperature meter is arranged on the third pipeline.

5. The homogenizer for producing a pesticide formulation according to claim 1, wherein A second flow meter and a second valve are arranged on the fourth pipeline.

6. The homogenizer for producing a pesticide formulation according to claim 1, wherein A temperature probe is arranged on the inner wall of the kettle body.

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