Proportioning mixing device for thiophanate-methyl suspension concentrate

Abstract

The utility model discloses a proportioning mixing device for preparing thiophanate-methyl suspension agent belongs to pesticide preparation mixing equipment field. This proportioning mixing device for preparing thiophanate-methyl suspension agent, including frame, be equipped with movable plate of horizontal removal on the frame, and movable plate and frame all are rotatively connected with main shaft, and the end of facing of main shaft all is solid and is equipped with the mixing cylinder of inclined setting, and two mixing cylinders form V -shaped structure, and the frame is equipped with two drive assemblies for driving main shaft synchronous rotation on symmetry, the end of mixing cylinder all are rotatively connected with the stirring shaft, and the stirring shaft all are solid and are equipped with a plurality of stirring vane, and movable plate and frame are solid and are equipped with gear ring on the side close to mixing cylinder, and gear ring one side all are rotatively connected with the ring, and the ring is solid and is equipped with fixed plate on. The utility model discloses through the compound motion mechanism of V -shaped mixing cylinder tumble and built -in porous stirring vane autorotation, has improved mixing uniformity and dispersion efficiency, and simultaneously adopts separable V -shaped mixing cylinder structure, and it is convenient to clean.

Description

Technical Field

[0001] This utility model relates to the field of pesticide formulation mixing equipment, and in particular to a proportioning and mixing device for the preparation of thiophanate-methyl suspension. Background Technology

[0002] Thiophanate-methyl is a highly effective, low-toxicity, broad-spectrum systemic fungicide, and its suspension concentrate (SC) is one of the important dosage forms. The quality of the suspension concentrate preparation directly affects the product's stability, efficacy, and safety. The preparation process mainly involves the precise proportioning and efficient shear mixing of materials such as the active ingredient, wetting agent, dispersant, thickener, antifreeze agent, and defoamer.

[0003] Chinese patent discloses a quantitative mixing device for the preparation of thiophanate-methyl suspension, application number 202222279155.6. The patent mainly uses a motor to start the second rotating rod, which drives the rotating fan blade to rotate. The blade crushes the raw material that has fallen into the grinding groove without being filtered. The crushed raw material falls into the bottom of the mixing tank through the filter screen. At this time, water is injected through the water injection pipe, and the temperature controller is activated to control the temperature inside the mixing tank. The rotating agitator stirs and mixes the raw material in the mixing tank, thus crushing the granular raw material and avoiding insufficient mixing during the mixing process.

[0004] Thiophanate-methyl suspension is a concentrated liquid with high viscosity. In existing technologies, the method of mixing using a single agitator in the lower part of the mixing tank is insufficient for achieving adequate dispersion and mixing. This results in areas far from the agitator (especially the tank wall boundary layer and tank bottom corners) easily becoming "dead zones," affecting the quality and stability of the suspension. Furthermore, the traditional closed structure of the mixing tank, with its flat or butterfly-shaped bottom, allows the high-viscosity suspension to easily adhere to the tank walls, agitator shaft, and other accessible surfaces. This may prevent the material from being completely discharged through the bottom discharge pipe, making cleaning during batch changes or after production difficult. Utility Model Content

[0005] This invention provides a mixing device for preparing thiophanate-methyl suspension, which can solve the problems of poor mixing effect and inconvenience in cleaning the inside of the cylinder in the existing mixing devices for preparing thiophanate-methyl suspension.

[0006] A mixing device for preparing thiophanate-methyl suspension includes a frame, on which a horizontally movable plate is provided. A main shaft is rotatably connected to both the movable plate and the frame. An inclined mixing cylinder is fixed to one end of each main shaft facing away from the other. The two mixing cylinders form a V-shaped structure. Two drive components for synchronously rotating the main shaft are symmetrically provided on the frame. Each mixing cylinder is rotatably connected to a stirring shaft at its end. Multiple stirring blades are fixed on each stirring shaft. A gear ring is fixed on the side of the movable plate and the frame near the mixing cylinder. A rotating ring is rotatably connected to one side of each gear ring. A fixed plate is fixed on each rotating ring. A rotating shaft is rotatably connected to each fixed plate. A gear that meshes with the corresponding gear ring is fixed at one end of each rotating shaft. The rotating shaft and the corresponding stirring shaft are connected by a universal joint.

[0007] Preferably, each of the mixing cylinders is fixedly provided with a feed pipe at its end, and each feed pipe is threaded with a cap.

[0008] Preferably, a fixed frame is fixed on the frame, and a powder metering loss-in-weight scale is fixed on the fixed frame. The feed pipe of the powder metering loss-in-weight scale is coaxially arranged with one of the feed pipes.

[0009] Preferably, a material cylinder is fixed on the fixing frame, and the material cylinder's discharge pipe and another feed pipe are arranged coaxially.

[0010] Preferably, a valve and a flow meter are fixedly installed on the feed pipe of the feed cylinder.

[0011] Preferably, the feed pipe of the powder metering loss-in-weight scale and the feed pipe of the cylinder are both fitted with guide pipes on the outside. Two second cylinders are symmetrically fixed on the fixed frame. A connecting plate is fixed on the drive shaft of the second cylinder. The guide pipes are all fixedly connected to the connecting plates.

[0012] Preferably, a first cylinder is fixedly mounted on the frame, and the drive shaft of the first cylinder is fixedly connected to the movable plate.

[0013] Preferably, two guide rails are fixedly provided on the frame and below the movable plate, and slide rails are slidably connected to each guide rail, and the movable plate is fixedly connected to the slide rails.

[0014] Preferably, the drive assembly includes a motor fixed on the frame and two pulleys, which are respectively fixed on the output shaft of the motor and the main shaft, and are connected to each other by belt drive.

[0015] Preferably, a sealing ring is fixedly provided at one of the opposite ends of the mixing cylinder.

[0016] This utility model provides a mixing device for preparing thiophanate-methyl suspension, which has the following beneficial effects: 1. The motor maintains stable synchronous rotation, which is achieved through pulleys and belts to drive the two main shafts to rotate synchronously, causing the entire V-shaped cavity to tumble around the main shaft axis. The material continuously separates, merges, and diffuses within the V-shaped cavity, resulting in uniform mixing. Simultaneously with the cavity rotation, a gear fixed to the cylinder end rolls along a gear ring, driving the internal stirring shaft and blades to rotate via a shaft and universal joint. This facilitates shearing and dispersing of the material through the stirring blades. The combined motion mechanism of the V-shaped mixing cylinder tumbling and the internal porous stirring blades' rotation achieves a synergistic effect of three-dimensional mixing and internal shearing dispersion, improving mixing uniformity and dispersion efficiency.

[0017] 2. This utility model adopts a separable V-shaped mixing cylinder structure. After mixing, the cylinder can be opened to fully expose the bottom opening, which not only facilitates the complete discharge of materials, but also greatly facilitates internal cleaning. Combined with the downward tilting design of the mixing cylinder, it is conducive to the rapid discharge of sewage, effectively avoiding cleaning dead corners, improving cleaning efficiency and reducing the risk of cross-contamination. Attached Figure Description

[0018] Figure 1 Schematic diagram of the mixing device for preparing thiophanate-methyl suspension provided by this utility model Figure 1 ; Figure 2 The present invention provides a mixing and proportioning device for preparing thiophanate-methyl suspension. Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 A schematic cross-sectional view of the mixing cylinder of the mixing device for preparing thiophanate-methyl suspension provided by this utility model; Figure 4 A schematic diagram of the feed pipe, valve, and flow meter of the mixing device for preparing thiophanate-methyl suspension provided by this utility model.

[0019] Explanation of reference numerals in the attached figures: 1. Frame; 2. Movable plate; 3. Main shaft; 4. Mixing cylinder; 5. Stirring shaft; 6. Stirring blade; 7. Gear ring; 8. Rotary ring; 9. Fixed plate; 10. Rotating shaft; 11. Gear; 12. Universal joint; 13. Feed pipe; 14. Cap; 15. Motor; 16. Pulley; 17. Sealing ring; 18. Guide rail; 19. Slide rail; 20. First cylinder; 21. Fixed frame; 22. Second cylinder; 23. Connecting plate; 24. Powder metering loss-in-weight scale; 25. Material cylinder; 26. Valve; 27. Flow meter; 28. Feed pipe. Detailed Implementation

[0020] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0021] like Figures 1 to 4 As shown in the figure, the mixing device for preparing thiophanate-methyl suspension provided in this embodiment of the present invention includes a frame 1, on which a horizontally movable plate 2 is provided. A main shaft 3 is rotatably connected to both the movable plate 2 and the frame 1. An inclined mixing cylinder 4 is fixed to one end of each main shaft 3 facing each other. The two mixing cylinders 4 form a V-shaped structure, and a sealing ring 17 is fixed to one end of each mixing cylinder 4 facing each other. Two drive components for driving the main shaft 3 to rotate synchronously are symmetrically provided on the frame 1. A stirring shaft 5 is rotatably connected to the end of each mixing cylinder 4. Multiple stirring blades 6 are fixed to each stirring shaft 5. The stirring blades 6 are designed with a porous structure. A gear ring 7 is fixed to one side of the movable plate 2 and the frame 1 near the mixing cylinder 4. A rotating ring 8 is rotatably connected to one side of each gear ring 7. A fixing plate 9 is fixed to the rotating ring 8. A rotating shaft 10 is rotatably connected to each fixing plate 9. A gear 11 that meshes with the corresponding gear ring 7 is fixed to one end of each rotating shaft 10. The rotating shaft 10 and the corresponding stirring shaft 5 are connected by a universal joint 12.

[0022] After the proportions are finalized, the mixture is stirred. The movable plate 2 resets, allowing the two mixing cylinders 4 to be tightly connected via the sealing ring 17, forming a sealed V-shaped mixing chamber. The drive assembly is activated, causing the two main shafts 3 to rotate synchronously. This causes the two inclined mixing cylinders 4 to rotate as a whole around the axis of the main shafts 3, achieving three-dimensional tumbling and transformation of the material within the V-shaped chamber. During the rotation and mixing of the mixing cylinders 4, the rotating ring 8 and its fixed plate 9 move, causing the gear 11 to move on the gear ring 7, thus rotating the gear 11 and the rotating shaft 10. The rotating shaft 10 drives the stirring shaft 5 and its porous stirring blades 6 to rotate within the mixing cylinder 4 via the universal joint 12, further shearing and dispersing the material. The solid powder and liquid are fully mixed and dispersed under the combined action of rotation and stirring to produce methyl thiophanate suspension. After mixing, the movable plate 2 moves, separating the mixing cylinders 4, allowing the finished product to be discharged from the bottom opening of the mixing cylinder 4, making unloading more thorough and convenient. After the mixing cylinder 4 is opened, the bottom opening facilitates better cleaning of the interior of the mixing cylinder 4, avoiding cleaning dead corners. When the washing drum is in use, the downward tilted mixing drum 4 facilitates the discharge of wastewater, improving cleaning efficiency and cleanliness, ensuring cleaning effect and reducing the risk of cross-contamination.

[0023] In some specific implementation plans, such as Figure 1 and Figure 4As shown, each end of the mixing cylinder 4 is fixedly equipped with a feed pipe 13, and each feed pipe 13 is threadedly connected with a cap 14. A fixed frame 21 is fixedly mounted on the frame 1, and a powder metering loss-in-weight scale 24 is fixedly mounted on the fixed frame 21. The discharge pipe of the powder metering loss-in-weight scale 24 is coaxially arranged with one of the feed pipes 13. A material cylinder 25 is fixedly mounted on the fixed frame 21, and the discharge pipe of the material cylinder 25 is coaxially arranged with the other feed pipe 13. A valve 26 and a flow meter 27 are fixedly mounted on the discharge pipe of the material cylinder 25. A guide pipe 28 is sleeved on the outside of both the discharge pipe of the powder metering loss-in-weight scale 24 and the discharge pipe of the material cylinder 25. Two second cylinders 22 are symmetrically fixed on the fixed frame 21, and a connecting plate 23 is fixedly mounted on the drive shaft of the second cylinder 22. The guide pipes 28 are all fixedly connected to the connecting plate 23.

[0024] During feeding, the second cylinder 22 pushes the connecting plate 23 downwards, causing the guide pipe 28 to be inserted into the feed pipe 13. The cap 14 on the feed pipe 13 is unscrewed, and the required solid powder is precisely measured using the powder metering loss-in-weight scale 24. The powder is then introduced into the mixing cylinder 4 through the discharge pipe and the guide pipe 28. Simultaneously, liquid components are added to the material cylinder 25, and the liquid flow rate is precisely controlled using the valve 26 and the flow meter 27. The liquid enters another mixing cylinder 4 through the corresponding discharge pipe and the guide pipe 28. After feeding is complete, the connecting plate 23 is reset, separating the guide pipe 28 from the feed pipe 13.

[0025] In some specific implementation plans, such as Figure 1 As shown, a first cylinder 20 is fixedly mounted on the frame 1. The drive shaft of the first cylinder 20 is fixedly connected to the movable plate 2. Two guide rails 18 are fixedly mounted on the frame 1 and below the movable plate 2. Each guide rail 18 is slidably connected to a slide rail 19. The movable plate 2 is fixedly connected to the slide rail 19.

[0026] The first cylinder 20 is used to drive the movable plate 2 to move left and right. The operation of the first cylinder 20 drives the movable plate 2 to move left and right on the guide rail 18, thereby realizing the opening and closing operation of the mixing cylinder 4 on the movable plate 2 and another fixed mixing cylinder 4, which facilitates the feeding or cleaning work after the mixing cylinder 4 is opened.

[0027] In some specific implementation plans, such as Figure 1 As shown. The drive assembly includes a motor 15 fixed on the frame 1 and two pulleys 16. The pulleys 16 are respectively fixed on the output shaft of the motor 15 and the main shaft 3, and the pulleys 16 are connected by belt drive. The two motors 15 maintain stable synchronous rotation through the transmission of the pulleys 16 and the belt to realize the synchronous rotation operation of the mixing drum 4.

[0028] In one embodiment, the synchronous rotation of the two mixing cylinders 4 can also be achieved by a single drive assembly, with the two mixing cylinders 4 connected by a plug-in structure. Specifically, a limiting plate can be provided on one of the mixing cylinders 4, with a slot inside the limiting plate. A plug rod that engages with the slot is fixed on the other mixing cylinder 4. When the movable plate 2 moves horizontally under the control of the first cylinder 20, the limiting plate and the plug rod are engaged, thereby forming a single structure that allows the two mixing cylinders 4 to rotate synchronously using a single drive assembly.

[0029] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios: When the device is started, the first step is feeding. Solid powder is accurately weighed by the powder metering loss-in-weight scale 24 and then added to a mixing cylinder 4 through the feed pipe 28; liquid components are metered by the feed cylinder 25 and then added to another mixing cylinder 4 through the flow meter 27. After feeding is completed, the first cylinder 20 pushes the movable plate 2, so that the two inclined mixing cylinders 4 are tightly connected through the sealing ring 17 to form a complete closed V-shaped mixing chamber.

[0030] The motor 15 maintains stable synchronous rotation, which, through the transmission of the pulley 16 and belt, enables the two main shafts 3 to rotate synchronously, causing the entire V-shaped cavity to tumble around the axis of the main shaft 3. The material continuously separates, merges, and diffuses within the V-shaped cavity, achieving uniform mixing. Simultaneously with the cavity's rotation, the gear 11 fixed to the cylinder end rolls along the gear ring 7, driving the internal stirring shaft 5 and stirring blades 6 to rotate via the rotating shaft 10 and universal joint 12. This facilitates the shearing and dispersing action of the stirring blades 6 on the material. Under the combined action of rotation and stirring, the solid powder and liquid are thoroughly mixed and dispersed to produce methyl thiophanate suspension.

[0031] After mixing, the first cylinder 20 pulls the movable plate 2 to separate the V-shaped chamber. The openings at the bottom of the two mixing cylinders 4 allow for more thorough and convenient material handling. The interior of the separated cylinders is fully exposed, and the downward-sloping structure facilitates rinsing and drainage, reducing cleaning dead spots, improving cleaning efficiency, and reducing the risk of cross-contamination.

[0032] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A mixing apparatus for preparing thiophanate-methyl suspension, comprising a frame (1), characterized in that, The frame (1) is provided with a horizontally movable plate (2), and a main shaft (3) is rotatably connected to both the movable plate (2) and the frame (1). An inclined mixing cylinder (4) is fixed at one end of the main shaft (3) facing each other. The two mixing cylinders (4) form a V-shaped structure. Two drive components for driving the main shaft (3) to rotate synchronously are symmetrically provided on the frame (1). The mixing cylinder (4) is rotatably connected to a stirring shaft (5) at each end. Multiple stirring blades (6) are fixed on the stirring shaft (5). A gear ring (7) is fixed on the side of the movable plate (2) and the frame (1) near the mixing cylinder (4). A rotating ring (8) is rotatably connected on one side of the gear ring (7). A fixing plate (9) is fixed on the rotating ring (8). A rotating shaft (10) is rotatably connected on the fixing plate (9). A gear (11) that meshes with the corresponding gear ring (7) is fixed at one end of the rotating shaft (10). The rotating shaft (10) and the corresponding stirring shaft (5) are connected by a universal joint (12).

2. The mixing apparatus for preparing thiophanate-methyl suspension as described in claim 1, characterized in that, Each of the mixing cylinders (4) is fixedly provided with a feed pipe (13), and each feed pipe (13) is threaded with a cap (14).

3. The mixing apparatus for preparing thiophanate-methyl suspension as described in claim 2, characterized in that, A fixed frame (21) is fixed on the frame (1), and a powder metering loss-in-weight scale (24) is fixed on the fixed frame (21). The feed pipe of the powder metering loss-in-weight scale (24) is coaxially arranged with one of the feed pipes (13).

4. The mixing apparatus for preparing thiophanate-methyl suspension as described in claim 3, characterized in that, A material cylinder (25) is fixed on the fixed frame (21), and the feed pipe of the material cylinder (25) is coaxially arranged with another feed pipe (13).

5. The mixing apparatus for preparing thiophanate-methyl suspension as described in claim 4, characterized in that, A valve (26) and a flow meter (27) are fixedly installed on the feed pipe of the feed cylinder (25).

6. The mixing apparatus for preparing thiophanate-methyl suspension as described in claim 5, characterized in that, The feed pipe of the powder metering loss-in-weight scale (24) and the feed pipe of the cylinder (25) are both fitted with guide pipes (28). Two second cylinders (22) are symmetrically fixed on the fixed frame (21). A connecting plate (23) is fixed on the drive shaft of the second cylinder (22). The guide pipes (28) are all fixedly connected to the connecting plate (23).

7. The mixing apparatus for preparing thiophanate-methyl suspension as described in claim 1, characterized in that, A first cylinder (20) is fixedly mounted on the frame (1), and the drive shaft of the first cylinder (20) is fixedly connected to the movable plate (2).

8. The mixing apparatus for preparing thiophanate-methyl suspension as described in claim 7, characterized in that, Two guide rails (18) are fixedly provided on the frame (1) and below the movable plate (2). Each guide rail (18) is slidably connected to a slide rail (19). The movable plate (2) is fixedly connected to the slide rail (19).

9. The mixing apparatus for preparing thiophanate-methyl suspension as described in claim 1, characterized in that, The drive assembly includes a motor (15) fixed on the frame (1) and two pulleys (16), which are respectively fixed on the output shaft of the motor (15) and the main shaft (3), and are connected to each other by belt drive.

10. The mixing apparatus for preparing thiophanate-methyl suspension as described in claim 9, characterized in that, Each of the mixing cylinders (4) is fixed with a sealing ring (17) at one of its opposite ends.

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