A premixing device for raw materials for producing pencycuron

Abstract

The utility model discloses a raw material premixing device for producing carboxin, relates to mixing, for example, dissolving, emulsification, dispersion technical field. This raw material premixing device for producing carboxin, including mixing tank body, the downside fixedly connected with support leg of mixing tank body, is seted up first rotary groove on the top wall of mixing tank body, the inside rotatable connection of first rotary groove has first rotation block, is seted up second rotary groove on the bottom wall of mixing tank body, the inside rotatable connection of second rotary groove has second rotation block, and the fixed connection with fixed link between first rotation block and second rotation block, the inside installation of mixing tank body has mixing mechanism, and the fixed link is as the center of circle to make circumferential revolution for stirring shaft, and realizes self-rotation through gear transmission, and then stirring shaft will drive stirring vane all -round sweep in the cavity of jar, thoroughly eliminates the stirring blind area of side wall, bottom, avoids the stratification of raw materials because of the density difference, and ensures that all kinds of raw materials contact fully, evenly melt.

Description

Technical Field

[0001] This utility model relates to the fields of mixing, such as dissolution, emulsification, and dispersion, specifically to a raw material premixing device for the production of rice blast amide. Background Technology

[0002] Rice blast amide is a selective, systemic benzamide fungicide, primarily used to control rice blast disease. It also has some efficacy against diseases in other crops and is widely used in the specialized management of rice diseases in agricultural production. The raw material premixing device for rice blast amide production is used to premix various raw materials in the rice blast amide production process to ensure uniform distribution of raw materials, improve the efficiency of subsequent reactions, and enhance product quality.

[0003] Most raw material premixing devices adopt a single-shaft stirring structure, achieving mixing only through the unidirectional rotation of the stirring blades. Lacking the coordinated motion of revolution and rotation, this single-motion mode results in uneven force distribution on raw materials of different densities and particle sizes within the tank. Heavy raw materials are easily affected by gravity and settle at the bottom of the tank, while light raw materials concentrate at the top under the unidirectional stirring force, forming a clear stratification. Simultaneously, raw materials near the tank sidewalls remain stationary or weakly stirred because the blades cannot reach them, and the bottom edge forms a long-term stagnant stirring dead zone. These insufficiently mixed raw materials are difficult to integrate with other components, directly leading to a significant decrease in the overall uniformity of the premix. This fails to meet the requirements for raw material mixing precision in blast amide production, creating potential risks for product quality fluctuations in subsequent synthesis stages. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a raw material premixing device for the production of rice blast amide. The stirring shaft revolves around the fixed rod as the center and also rotates itself through gear transmission. In this way, the stirring shaft drives the stirring blades to sweep across the inner cavity of the tank in all directions, completely eliminating the stirring blind spots on the side walls and bottom, avoiding the stratification of raw materials due to density differences, and ensuring that all kinds of raw materials are fully contacted and uniformly mixed.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a premixing device for raw materials for the production of rice blast amide, comprising a mixing tank, a support leg fixedly connected to the lower side of the mixing tank, a first rotating groove being provided on the top wall of the mixing tank, and a first rotating block being rotatably connected inside the first rotating groove; A second rotating groove is provided on the bottom wall of the mixing tank, and a second rotating block is rotatably connected inside the second rotating groove; A fixing rod is fixedly connected between the first rotating block and the second rotating block. A mixing mechanism is installed inside the mixing tank, which can uniformly mix the raw materials inside the mixing tank. The mixing mechanism includes two stirring shafts, two sets of stirring blades, a motor assembly, two first limiting grooves, two first limiting blocks, two second limiting grooves, two second limiting blocks, a transmission groove, a rotating rod, a first gear, two transmission rods, and two second gears.

[0006] Preferably, a feed hopper is fixedly connected to the rear side of the outer surface of the mixing tank body, and the feed hopper is located at the upper side of the mixing tank body; A hopper cover is installed on the upper side of the feed hopper, and the feed hopper and the hopper cover are rotatably connected by a rotating shaft; A discharge pipe is fixedly connected to the front side of the outer surface of the mixing tank. The discharge pipe is located on the lower side of the mixing tank and a switch valve is installed on the discharge pipe.

[0007] Preferably, both stirring shafts are installed between the first rotating block and the second rotating block, and the two stirring shafts are respectively arranged on the front and rear sides of the fixed rod; Two sets of stirring blades are fixedly connected to the outer surfaces of two stirring shafts, and the motor assembly is fixedly connected to the upper side of the mixing tank. The output shaft of the motor assembly rotates and extends into the interior of the first rotating groove.

[0008] Preferably, the lower end of the output shaft of the motor assembly is fixedly connected to the first rotating block, and both first limiting grooves are formed inside the first rotating block; The upper ends of the two stirring shafts extend into the interior of the two first limiting grooves, and the two first limiting blocks are fixedly connected to the upper ends of the two stirring shafts.

[0009] Preferably, the two first limiting blocks are respectively disposed inside the two first limiting grooves, and the two second limiting grooves are both opened inside the second rotating block; The lower ends of the two stirring shafts extend into the interior of the two second limiting grooves, and the two second limiting blocks are fixedly connected to the lower ends of the two stirring shafts.

[0010] Preferably, the two second limiting blocks are respectively disposed inside the two second limiting grooves, and the transmission groove is opened inside the mixing tank body; The transmission groove is located below the second rotating groove, and the upper side of the transmission groove extends into the interior of the second rotating groove. The rotating rod is fixedly connected to the bottom wall of the transmission groove.

[0011] Preferably, the first gear is fixedly sleeved on the outer surface of the rotating rod, and the two transmission rods are respectively fixedly connected to the lower side of the two second limiting blocks, with the lower ends of the two transmission rods rotatably extending into the interior of the transmission groove. Two second gears are fixedly connected to the lower ends of the two transmission rods, and the two second gears mesh with the first gear.

[0012] Preferably, both scraper blocks are disposed inside the mixing tank, the two scraper blocks are arranged symmetrically from left to right, both scraper blocks are inclined, and the sides of the two scraper blocks that are far apart from each other are in contact with the inner wall of the mixing tank. All four support rods are fixedly connected to the outer surface of the fixed rod. The ends of the four support rods that are far apart from each other are fixedly connected to two scraping blocks respectively. Each scraping block is fixedly connected to two support rods.

[0013] Preferably, the stirring blade is replaced by a double-segment auger blade, wherein the upper segment of the double-segment auger blade is a left-handed auger and the lower segment is a right-handed auger.

[0014] Compared with the prior art, the beneficial effects of this utility model are: (1) The raw material premixing device for the production of rice blast amide has a stirring shaft that revolves around a fixed rod and rotates itself through gear transmission. The stirring shaft will drive the stirring blades to sweep across the inner cavity of the tank in all directions, completely eliminating the stirring blind spots on the side walls and bottom, avoiding the stratification of raw materials due to density differences, and ensuring that all kinds of raw materials are fully contacted and uniformly blended.

[0015] (2) In the raw material premixing device for the production of rice blast amide, when the fixed rod rotates, the scraper block rotates accordingly and scrapes the raw material attached to the inner wall of the mixing tank. This not only avoids the residue of raw material on the inner wall of the tank and reduces raw material waste, but also allows the scraped raw material to participate in the mixing again, further improving the uniformity of the mixing. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of a raw material premixing device for the production of rice blast amide according to this utility model; Figure 2 This is a schematic diagram of the cross-sectional connection structure of the mixing tank body of this utility model; Figure 3 This is a schematic diagram of the cross-sectional connection structure of the first rotating block and the second rotating block of this utility model; Figure 4 for Figure 3 Enlarged view of point A; Figure 5 This is a schematic diagram of the connection structure at the stirring shaft of this utility model.

[0017] Reference numerals in the attached drawings: 1. Mixing tank body; 2. Support leg; 3. Feed hopper; 4. Hopper cover; 5. Discharge pipe; 6. First rotating groove; 7. First rotating block; 8. Second rotating groove; 9. Second rotating block; 10. Fixed rod; 11. Stirring shaft; 12. Stirring blade; 13. Motor assembly; 14. First limiting groove; 15. First limiting block; 16. Second limiting groove; 17. Second limiting block; 18. Transmission groove; 19. Rotating rod; 20. First gear; 21. Transmission rod; 22. Second gear; 23. Support rod; 24. Scraper block. Detailed Implementation

[0018] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Please see Figure 1-5 This utility model provides a new technical solution: a premixing device for raw materials for the production of rice blast amide, including a mixing tank 1: serving as the main container of the entire premixing device, used to hold the raw materials for the production of rice blast amide that need to be mixed, and providing a closed space for mixing the raw materials.

[0023] Support leg 2: It is fixedly connected to the lower side of the mixing tank 1 and serves to support the mixing tank 1, so that the device can be placed stably in the working environment.

[0024] Feed hopper 3: It is fixedly connected to the rear side of the outer surface of the mixing tank 1 and is located on the upper side. It is the channel for raw materials to enter the mixing tank 1, making it convenient to pour the raw materials into the tank.

[0025] Hopper cover 4: It is rotatably connected to the upper side of the feed hopper 3 via a rotating shaft. It is used to close the feed hopper 3 after feeding is completed, to prevent foreign objects from entering the mixing tank 1 during the mixing process, and also to reduce the overflow of dust generated during raw material mixing.

[0026] Discharge pipe 5: It is fixedly connected to the front side of the outer surface of the mixing tank 1 and located at the lower side. It is equipped with a switch valve and is the channel for the mixed raw materials to be discharged from the mixing tank 1. The discharge time and flow rate of the raw materials can be controlled by the switch valve.

[0027] First rotating groove 6: It is formed on the top wall of mixing tank 1, and a first rotating block 7 is rotatably connected inside, providing space and support for the rotation of the first rotating block 7.

[0028] First rotating block 7: Rotatably connected in the first rotating groove 6, with the lower end of the output shaft of motor assembly 13 fixedly connected to it. Driven by motor assembly 13, it can rotate in the first rotating groove 6 and is one of the important components that drive the rotation of other components.

[0029] The second rotating groove 8 is located on the bottom wall of the mixing tank 1, and is internally connected to a second rotating block 9, providing space and support for the rotation of the second rotating block 9.

[0030] The second rotating block 9 is rotatably connected in the second rotating groove 8 and connected to the first rotating block 7 via the fixing rod 10. When the first rotating block 7 drives the fixing rod 10 to rotate, it will rotate synchronously in the second rotating groove 8, cooperating with the first rotating block 7 to realize the rotation of the stirring shaft.

[0031] Fixed rod 10: It is fixedly connected between the first rotating block 7 and the second rotating block 9, and plays the role of connecting and transmitting rotational power, so that the first rotating block 7 and the second rotating block 9 can rotate synchronously, thereby driving the stirring shaft to revolve.

[0032] Stirring shaft 11: There are two stirring shafts 11, both installed between the first rotating block 7 and the second rotating block 9, and respectively set on the front and rear sides of the fixed rod 10. They revolve under the drive of the first rotating block 7 and the second rotating block 9, and rotate on their own axis through cooperation with the second gear 22 and other components. They are the key components that drive the stirring blades 12 to rotate and achieve the mixing of raw materials.

[0033] Stirring blades 12: There are two sets of stirring blades 12, which are fixedly connected to the outer surfaces of the two stirring shafts 11. As the stirring shafts 11 rotate, the stirring blades 12 will stir the raw materials inside the mixing tank 1, so that the raw materials are fully mixed and uniform.

[0034] Motor assembly 13: Fixedly connected to the upper side of the mixing tank 1, its output shaft extends rotatably into the first rotating groove 6 and is fixedly connected to the first rotating block 7. It provides power to the entire mixing mechanism, drives the first rotating block 7 to rotate, and thus drives the entire mixing process.

[0035] First limiting groove 14: There are two first limiting grooves 14, both of which are opened inside the first rotating block 7. The upper ends of the two stirring shafts 11 respectively extend into the two first limiting grooves 14, which play a role in limiting and supporting the upper ends of the stirring shafts 11, so that the stirring shafts 11 can rotate stably.

[0036] First limiting block 15: There are two first limiting blocks 15, which are fixedly connected to the upper ends of the two stirring shafts 11 respectively, and are respectively set in the two first limiting grooves 14. They cooperate with the first limiting grooves 14 to prevent the stirring shafts 11 from falling off the first rotating block 7 during rotation.

[0037] Second limiting groove 16: There are two second limiting grooves 16, both of which are opened inside the second rotating block 9. The lower ends of the two stirring shafts 11 respectively extend into the two second limiting grooves 16, which play a role in limiting and supporting the lower ends of the stirring shafts 11, so that the stirring shafts 11 can rotate stably.

[0038] Second limiting block 17: There are two second limiting blocks 17, which are fixedly connected to the lower ends of the two stirring shafts 11 respectively, and are respectively set in the two second limiting grooves 16. They cooperate with the second limiting grooves 16 to prevent the stirring shafts 11 from falling off the second rotating block 9 during rotation. At the same time, they are connected to the second gear 22 through the transmission rod 21 to realize the rotation of the stirring shafts 11.

[0039] Transmission groove 18: It is opened inside the mixing tank 1 and is located on the lower side of the second rotating groove 8. Its upper side extends into the interior of the second rotating groove 8. It provides installation space for components such as rotating rod 19, first gear 20, transmission rod 21 and second gear 22. It is an important structure for realizing the self-rotation transmission of stirring shaft 11.

[0040] Rotating rod 19: It is fixedly connected to the bottom wall of the transmission groove 18, and the first gear 20 is fixedly sleeved on its outer surface, which serves to fix and support the first gear 20.

[0041] First gear 20: It is fixedly sleeved on the outer surface of the rotating rod 19 and meshes with the two second gears 22. It is a fixed gear in the transmission system and provides a reference and transmission basis for the rotation of the second gears 22.

[0042] Transmission rod 21: There are two transmission rods 21, which are fixedly connected to the lower side of the two second limit blocks 17 respectively. The lower ends of both rods extend into the interior of the transmission groove 18, serving to connect the second limit blocks 17 and the second gear 22, and transmitting the rotation of the second limit blocks 17 to the second gear 22.

[0043] Second gear 22: There are two second gears 22, which are fixedly connected to the lower ends of the two transmission rods 21 respectively, and mesh with the first gear 20. They rotate under the drive of the transmission rods 21 and make circular motion around the first gear 20. They drive the stirring shaft 11 to rotate through the transmission rods 21 and the second limiting block 17.

[0044] Support rod 23: There are four support rods 23, all of which are fixedly connected to the outer surface of the fixed rod 10. The ends of the four support rods 23 that are far apart from each other are fixedly connected to two scraping blocks 24 respectively. Each scraping block 24 is fixedly connected to two support rods 23. The support rods 23 serve to support and connect the scraping blocks 24, so that the scraping blocks 24 can rotate with the fixed rod 10.

[0045] Scraper 24: There are two scraper blocks 24, both of which are set inside the mixing tank 1 and are arranged symmetrically from left to right. Both scraper blocks 24 are inclined structures, and the side that is far away from each other is in contact with the inner wall of the mixing tank 1. When the fixed rod 10 rotates, the scraper blocks 24 rotate accordingly and scrape the raw materials attached to the inner wall of the mixing tank 1, so that the scraped raw materials move downwards, avoiding waste of raw materials and affecting the mixing effect.

[0046] Furthermore, open the hopper cover 4 installed on the upper side of the feed hopper 3 and rotatably connected to the feed hopper 3 via a rotating shaft, and pour the raw materials for the production of rice blast amide that need to be mixed from the feed hopper 3 into the mixing tank 1. After feeding is completed, close the hopper cover 4 and start the motor assembly 13 fixedly connected to the upper side of the mixing tank 1. The output shaft of the motor assembly 13 rotates counterclockwise and extends into the first rotating groove 6. The lower end of its output shaft is fixedly connected to the first rotating block 7. Therefore, after the motor assembly 13 is started, it will drive the first rotating block 7 to rotate in the first rotating groove 6. When the first rotating block 7 rotates, it will drive the fixed rod 10 to rotate synchronously. When the fixed rod 10 rotates, it will drive the second rotating block 9 to rotate synchronously in the second rotating groove 8. When the first rotating block 7 and the second rotating block 9 rotate synchronously, they will drive the two stirring shafts 11 to revolve. The two stirring shafts 11 will rotate in a circle with the fixed rod 10 as the center.

[0047] At the same time, the two stirring shafts 11 will drive the two second limiting blocks 17 to rotate, the two second limiting blocks 17 will drive the two transmission rods 21 to rotate synchronously, the two transmission rods 21 will drive the two second gears 22 to rotate synchronously. Since the second gears 22 mesh with the first gear 20, the two second gears 22 will make circular motion around the first gear 20, and at the same time, they will also rotate themselves. In turn, the second gears 22 will drive the second limiting blocks 17 and the stirring shafts 11 to rotate synchronously.

[0048] Two sets of stirring blades 12 are fixedly connected to the outer surfaces of two stirring shafts 11. As the two stirring shafts 11 rotate, they drive the two sets of stirring blades 12 to fully and evenly stir and mix the raw materials inside the mixing tank 1, ensuring the mixing effect of the raw materials. After the raw materials are evenly mixed, the switch valve installed on the discharge pipe 5 located at the lower side of the mixing tank 1 is opened, and the mixed raw materials are discharged from the discharge pipe 5, completing the raw material premixing operation.

[0049] During operation, some raw materials will adhere to the inner wall of the mixing tank 1. When the fixed rod 10 rotates counterclockwise, it will drive the four support rods 23 to rotate synchronously. The four support rods 23 will drive the two scraping blocks 24 to rotate synchronously. When the two scraping blocks 24 rotate, they will scrape the raw materials adhering to the inner wall of the mixing tank 1. At the same time, because the scraping blocks 24 are in an inclined state, the raw materials scraped off by the scraping blocks 24 will move downward.

[0050] Example: A scenario for mixing high-viscosity raw materials. Please see Figure 5 The flat blades of the stirring blade 12 are replaced with double-section auger blades, with the upper section being a left-hand auger and the lower section being a right-hand auger.

[0051] During the rotation of the stirring shaft 11, the upper left-hand spiral auger-type stirring blades 12 generate a downward thrust, pushing the high-viscosity raw material in the upper layer of the mixing tank 1 to the middle layer, while the lower right-hand spiral auger-type stirring blades 12 generate an upward thrust, pushing the raw material in the lower layer of the mixing tank 1 to the middle layer. This promotes the formation of an upward and downward convection circulation of the raw material in the mixing tank 1. At the same time, when the stirring shaft 11 revolves, the spiral surface of the auger-type stirring blades 12 can also perform circumferential shearing on the raw material in different areas of the mixing tank 1, thereby promoting the circulation of the raw material and preventing local agglomeration of the raw material. It can be adapted to the mixing needs of high-viscosity paste-like raw materials entering the mixing tank 1 through the feed hopper 3 in the production of rice blast amide. It solves the problem that high-viscosity raw materials are easy to agglomerate and the circulation between the upper and lower layers is not smooth when the original stirring blades 12 are stirring. It improves the exchange efficiency between the upper and lower layers of raw materials in the mixing tank 1, reduces the proportion of raw material agglomerates, reduces the viscosity difference between the upper and lower layers of raw materials, and ensures the uniformity of raw material mixing. Moreover, no additional stirring power is required. It can be fully adapted to the original motor assembly 13 without the need to modify the motor assembly 13. The mixed raw materials can be smoothly discharged through the discharge pipe 5.

[0052] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A raw material premixing device for the production of rice blast amide, comprising a mixing tank (1), a support leg (2) fixedly connected to the lower side of the mixing tank (1), a first rotating groove (6) opened on the top wall of the mixing tank (1), and a first rotating block (7) rotatably connected inside the first rotating groove (6). A second rotating groove (8) is provided on the bottom wall of the mixing tank (1), and a second rotating block (9) is rotatably connected inside the second rotating groove (8). A fixing rod (10) is fixedly connected between the first rotating block (7) and the second rotating block (9), characterized in that: The mixing tank (1) is equipped with a mixing mechanism, which can uniformly mix the raw materials inside the mixing tank (1). The mixing mechanism includes two stirring shafts (11), two sets of stirring blades (12), a motor assembly (13), two first limiting grooves (14), two first limiting blocks (15), two second limiting grooves (16), two second limiting blocks (17), a transmission groove (18), a rotating rod (19), a first gear (20), two transmission rods (21), two second gears (22), four support rods (23), and two scraping blocks (24).

2. The premixing device for raw materials in the production of rice blast amide according to claim 1, characterized in that: A feeding hopper (3) is fixedly connected to the rear side of the outer surface of the mixing tank (1), and the feeding hopper (3) is located at the upper side of the mixing tank (1). A hopper cover (4) is installed on the upper side of the feed hopper (3), and the feed hopper (3) and the hopper cover (4) are rotatably connected by a rotating shaft; A discharge pipe (5) is fixedly connected to the front side of the outer surface of the mixing tank (1). The discharge pipe (5) is located at the lower side of the mixing tank (1), and a switch valve is installed on the discharge pipe (5).

3. The premixing device for raw materials in the production of rice blast amide according to claim 1, characterized in that: Both stirring shafts (11) are installed between the first rotating block (7) and the second rotating block (9), and the two stirring shafts (11) are respectively set on the front and rear sides of the fixed rod (10); Two sets of stirring blades (12) are fixedly connected to the outer surfaces of two stirring shafts (11), and the motor assembly (13) is fixedly connected to the upper side of the mixing tank (1). The output shaft of the motor assembly (13) rotates and extends into the interior of the first rotating groove (6).

4. The premixing device for raw materials in the production of rice blast amide according to claim 3, characterized in that: The lower end of the output shaft of the motor assembly (13) is fixedly connected to the first rotating block (7), and the two first limiting grooves (14) are both opened inside the first rotating block (7); The upper ends of the two stirring shafts (11) are respectively rotated and extended into the interior of the two first limiting grooves (14), and the two first limiting blocks (15) are respectively fixedly connected to the upper ends of the two stirring shafts (11).

5. The premixing device for raw materials in the production of rice blast amide according to claim 4, characterized in that: The two first limiting blocks (15) are respectively disposed inside the two first limiting grooves (14), and the two second limiting grooves (16) are both opened inside the second rotating block (9); The lower ends of the two stirring shafts (11) are respectively rotated and extended into the interior of the two second limiting grooves (16), and the two second limiting blocks (17) are respectively fixedly connected to the lower ends of the two stirring shafts (11).

6. The premixing device for raw materials in the production of rice blast amide according to claim 5, characterized in that: The two second limiting blocks (17) are respectively set inside the two second limiting grooves (16), and the transmission groove (18) is opened inside the mixing tank (1); The transmission groove (18) is located on the lower side of the second rotating groove (8), and the upper side of the transmission groove (18) extends into the interior of the second rotating groove (8). The rotating rod (19) is fixedly connected to the bottom wall of the transmission groove (18).

7. The premixing device for raw materials in the production of rice blast amide according to claim 1, characterized in that: The first gear (20) is fixedly sleeved on the outer surface of the rotating rod (19), and the two transmission rods (21) are respectively fixedly connected to the lower side of the two second limiting blocks (17). The lower ends of the two transmission rods (21) are rotatably extended into the interior of the transmission groove (18). Two second gears (22) are fixedly connected to the lower ends of two transmission rods (21), and the two second gears (22) mesh with the first gear (20).

8. The premixing device for raw materials in the production of rice blast amide according to claim 1, characterized in that: Both scraper blocks (24) are located inside the mixing tank (1). The two scraper blocks (24) are arranged symmetrically from left to right. Both scraper blocks (24) are inclined structures. The sides of the two scraper blocks (24) that are far apart from each other are in contact with the inner wall of the mixing tank (1). Four support rods (23) are fixedly connected to the outer surface of the fixed rod (10). The ends of the four support rods (23) that are far apart from each other are fixedly connected to two scraping blocks (24). Each scraping block (24) is fixedly connected to two support rods (23).

9. A premixing device for raw materials in the production of rice blast amide according to claim 3, characterized in that: The stirring blade (12) is replaced from a flat blade with a double-segment auger blade, the upper segment of which is a left-handed auger and the lower segment is a right-handed auger.

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