A fertilizer application uniformity distributor

Abstract

The utility model discloses a kind of fertilizer application even distributor, belong to fertilizer application technical field, including vehicle body, vehicle body one side is fixedly connected with handle, controller is set on handle, and mobile wheel is symmetrically arranged at vehicle body bottom;The application is provided with distribution mechanism and material scattering mechanism, multiple partition plates are set, the inside of distribution tray can be divided into multiple identical spaces, so when multiple partition plates rotate, fertilizer will be transferred from one space inside distribution tray to another space, until fertilizer is transferred to the space that is communicated with spray pipe, to realize even distribution to fertilizer, then through connecting plate, spray pipe is driven to reciprocating swing, fertilizer falling into the inside of spray pipe at this time, it will be evenly thrown out under the action of centrifugal force, to realize even application of fertilizer, improve the uniformity and efficiency of fertilization, simultaneously, through fan-shaped application, fertilizer can also be effectively avoided to fall into machine, improve the utilization efficiency of fertilizer.

Description

Technical Field

[0001] This utility model specifically relates to a fertilizer spreading and distributing device, belonging to the field of fertilizer spreading technology. Background Technology

[0002] In agricultural production, fertilizer application is a key step in ensuring crop growth and increasing yield. By applying fertilizer to the soil or crop surface, soil nutrients can be replenished to meet the nutritional needs of crops at different growth stages. Currently, there are various fertilizer application methods, including manual sowing and mechanical sowing. Manual sowing is labor-intensive, inefficient, and makes it difficult to ensure uniform application. Mechanical sowing, with its advantages of high efficiency and labor saving, has gradually become the main method in large-scale agricultural production.

[0003] Effective fertilizer utilization depends on scientific application methods. Only by applying fertilizer accurately and evenly to the crop root zone or growth environment can its fertilizer effect be maximized. With the development of agricultural mechanization, fertilizer application has gradually shifted from traditional manual spreading to mechanized operations. Various fertilizer application equipment has emerged. These devices, through specific structural designs, realize the functions of fertilizer storage, transportation and application, which not only reduces the intensity of manual labor but also improves fertilization efficiency.

[0004] Existing fertilizer spreading machines often employ a centrifugal spreading method using a rotating disc. This involves directly pouring fertilizer onto a continuously rotating disc, using the centrifugal force of the disc to propel the fertilizer out for spreading. However, this method makes it difficult to precisely control the amount of fertilizer falling onto the disc each time, easily leading to uneven fertilization in the field. Some areas may have excess fertilizer, resulting in waste, while others may have insufficient fertilizer, affecting crop growth. Furthermore, when the disc rotates at high speed, some fertilizer is thrown into the machine, not only contaminating equipment parts and increasing maintenance costs but also further causing fertilizer loss. Therefore, this application provides a fertilizer spreading and uniform distribution device. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a fertilizer evenly distributed distributor, thereby achieving the goal of uniformly distributing fertilizer.

[0006] To further achieve the above objectives, the following technical solution is adopted: A fertilizer spreading and distributing device includes a vehicle body, a handle fixedly connected to one side of the vehicle body, a controller mounted on the handle, symmetrically arranged casters at the bottom of the vehicle body, a hopper fixedly connected to the top of the vehicle body, a cavity inside the vehicle body, a corrugated pipe fixedly connected to the bottom of the hopper, a distribution plate fixedly connected to the bottom end of the corrugated pipe, a spray pipe rotatably mounted at the bottom of the distribution plate, the corrugated pipe, the distribution plate, and the spray pipe all being located inside the cavity, a distribution mechanism installed inside the distribution plate, a spreading mechanism installed inside the cavity, and a shaking mechanism installed inside the cavity.

[0007] Preferably, the dispensing mechanism includes connecting blocks symmetrically fixedly connected to the outer wall of the dispensing disc, one end of each of the two connecting blocks being fixedly connected to the inner wall of the cavity, the dispensing disc being fixedly installed inside the cavity by two sets of connecting blocks, a rotating shaft being rotatably connected through the center of the dispensing disc, multiple partition plates being fixedly connected to the outer wall of the rotating shaft, all of the multiple partition plates being located inside the dispensing disc, a connecting pipe being fixedly connected to the bottom of the dispensing disc, and the top end of the spray pipe being rotatably connected inside the connecting pipe.

[0008] Preferably, a gear one is fixedly connected to the outer wall of one end of the rotating shaft, a gear two is rotatably connected to one side of the vehicle body, a motor one is fixedly connected to one side of the vehicle body, the output end of the motor one is fixedly connected to one end of the gear two, and the gear one and gear two are meshed together.

[0009] Preferably, the spreading mechanism includes a fixed rod rotatably connected inside the cavity, a connecting plate rotatably connected to the top of the fixed rod, the top surface of the connecting plate being fixedly connected to the outer wall of the spray pipe, a rotating rod rotatably connected through the bottom surface of the cavity, a second motor fixedly connected to the bottom of the vehicle body, the output end of the second motor being fixedly connected to the bottom end of the rotating rod, a fixed plate fixedly connected to the top of the rotating rod, a support column fixedly connected to the top of one end of the fixed plate, a connecting rod rotatably connected to the outer wall of the support column, and the end of the connecting rod away from the support column being rotatably connected to the bottom of the connecting plate.

[0010] Preferably, the shaking mechanism includes support blocks symmetrically fixedly connected inside the cavity, with two support blocks located on both sides of the bellows. Each of the two support blocks is fixedly connected with a sliding rod, and a slider is fixedly connected to the outer wall of the bellows. The two ends of the slider are slidably connected to the outer walls of the two sliding rods, respectively.

[0011] Preferably, two springs are fitted on the outer walls of both slide rods, and the two ends of the two springs are fixedly connected to one side of the slider and the inner wall of the support block, respectively. A connecting shaft is rotatably connected through the vehicle body, and a motor is fixedly connected to one side of the vehicle body. The output end of the motor is fixedly connected to one end of the connecting shaft. A cam is fixedly connected to the end of the connecting shaft away from the motor and located in one of the support blocks. The protruding end of the cam can collide with one side of the slider.

[0012] Preferably, a baffle is fixedly connected inside the hopper, and multiple compartments are provided inside the hopper. Multiple discharge pipes are provided through the bottom of the baffle, and valves are provided in each of the multiple discharge pipes.

[0013] Beneficial effects: 1. This application includes a distribution mechanism and a spreading mechanism. Multiple partition plates divide the distribution plate into several equal spaces. As the partition plates rotate, fertilizer is transferred from one space to another within the distribution plate until it reaches the space connected to the spray pipe, thus achieving uniform fertilizer distribution. Subsequently, a connecting plate drives the spray pipe to reciprocate. Fertilizer falling into the spray pipe is then evenly flung out by centrifugal force, achieving uniform fertilizer application and improving the uniformity and efficiency of fertilization. Furthermore, the fan-shaped spreading effectively prevents fertilizer from spilling into the machine, further enhancing fertilizer utilization efficiency.

[0014] 2. This application includes a shaking mechanism. During equipment operation, the shaking mechanism can be activated to intermittently shake the corrugated pipe, thereby effectively preventing clogging caused by factors such as particle size and humidity during fertilizer delivery to the distribution tray. This ensures the continuity and stability of fertilizer application and reduces equipment maintenance costs and downtime. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is a three-dimensional structural diagram of the dispensing mechanism in this utility model; Figure 5 This is a three-dimensional structural diagram of the material spreading mechanism in this utility model; Figure 6 This is a three-dimensional structural diagram of the shaking mechanism in this utility model; Figure 7 This is a schematic diagram of the internal structure of the hopper in this utility model.

[0016] In the diagram: 1. Body; 2. Handle; 3. Controller; 4. Moving wheel; 5. Hopper; 6. Cavity; 7. Bellows; 8. Distribution plate; 9. Spray pipe; 10. Connecting block; 11. Rotating shaft; 12. Divider plate; 13. Connecting pipe; 14. Gear 1; 15. Gear 2; 16. Motor 1; 17. Fixed rod; 18. Connecting plate; 19. Rotating rod; 20. Motor 2; 21. Fixed plate; 22. Connecting rod; 23. Support block; 24. Sliding rod; 25. Sliding block; 26. Spring; 27. Connecting shaft; 28. Motor 3; 29. ​​Cam; 30. Baffle; 31. Compartment; 32. Support column; 33. Discharge pipe. 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 1-7 As shown, a fertilizer spreading and distributing device includes a body 1, a handle 2 fixedly connected to one side of the body 1, a controller 3 installed on the handle 2, symmetrically arranged moving wheels 4 at the bottom of the body 1, a hopper 5 fixedly connected to the top of the body 1, a cavity 6 opened inside the body 1, a corrugated pipe 7 fixedly connected to the bottom of the hopper 5, a distribution plate 8 fixedly connected to the bottom end of the corrugated pipe 7, a spray pipe 9 rotatably installed at the bottom of the distribution plate 8, the corrugated pipe 7, the distribution plate 8 and the spray pipe 9 are all located inside the cavity 6, a distribution mechanism is installed inside the distribution plate 8, a spreading mechanism is installed inside the cavity 6, a shaking mechanism is installed inside the cavity 6, and all electrical components in the device are electrically connected to the controller 3. A baffle 30 is fixedly connected inside the hopper 5. Multiple compartments 31 are provided inside the hopper 5. Multiple discharge pipes 33 are opened through the bottom of the baffle 30, and valves are provided in each of the multiple discharge pipes 33.

[0019] In use, the required fertilizer can be poured into the hopper 5 according to fertilization needs. Multiple compartments 31 within the hopper 5 can store various fertilizers, effectively meeting different fertilization requirements. When fertilization is needed, the valve in the corresponding discharge pipe 33 can be opened, allowing the fertilizer to enter the corrugated pipe 7. Guided by the corrugated pipe 7, the fertilizer gradually enters the distribution plate 8. The distribution mechanism inside the distribution plate 8 evenly distributes the fertilizer into equal portions. These equal portions of fertilizer then intermittently enter the spray pipe 9. Activating the spreading mechanism causes the spray pipe 9 to oscillate back and forth, thereby centrifugating the fertilizer. The force applied evenly spreads the fertilizer in a fan shape. Through the coordination of the distribution mechanism and the spreading mechanism, the fertilizer can be evenly distributed in the field, avoiding differences in crop growth caused by uneven fertilization, and improving the overall yield and quality of crops. At the same time, the fan-shaped spreading can also effectively prevent fertilizer from falling into the machine, improving fertilizer utilization efficiency. Secondly, during the operation of the equipment, the shaking mechanism can be activated to intermittently shake the corrugated pipe 7, thereby effectively preventing clogging caused by factors such as particle size and humidity during the delivery of fertilizer into the distribution plate 8, ensuring the continuity and stability of fertilizer spreading, and reducing equipment maintenance costs and downtime.

[0020] Reference Figure 1 , Figure 3 and Figure 4 The distribution mechanism includes connecting blocks 10 symmetrically fixedly connected to the outer wall of the distribution disc 8. One end of each connecting block 10 is fixedly connected to the inner wall of the cavity 6. The distribution disc 8 is fixedly installed inside the cavity 6 through the two sets of connecting blocks 10. A rotating shaft 11 is rotatably connected through the center of the distribution disc 8. Multiple partition plates 12 are fixedly connected to the outer wall of the rotating shaft 11. All partition plates 12 are located inside the distribution disc 8. A connecting pipe 13 is fixedly connected to the bottom of the distribution disc 8. The top end of the spray pipe 9 is rotatably connected to the connecting pipe 13. A gear 14 is fixedly connected to the outer wall of one end of the rotating shaft 11. A gear 2 15 is rotatably connected to one side of the vehicle body 1. A motor 16 is fixedly connected to one side of the vehicle body 1. The output end of the motor 16 is fixedly connected to one end of the gear 2 15. The gear 14 and the gear 2 15 are meshed together.

[0021] In use, the distribution plate 8 is divided into multiple equal spaces by multiple partitions 12 inside the distribution plate 8. Guided by the bellows 7, fertilizer gradually enters one of the spaces inside the distribution plate 8. Then, the motor 16 is started, causing the motor 16 to drive the gear 15 to rotate. Since the gear 14 is meshed with the gear 15, when the gear 15 rotates, it will drive the gear 14 to rotate. The gear 14 is fixedly connected to the outer wall of one end of the rotating shaft 11. Therefore, gear 14 will drive the rotating shaft 11 to rotate, and the rotation of the rotating shaft 11 will drive multiple partition plates 12 to rotate together. At this time, the fertilizer will be transferred from one space inside the distribution plate 8 to another space until the fertilizer is transferred to the space connected to the spray pipe 9, thereby achieving uniform distribution of fertilizer. Then, the same amount of fertilizer will fall into the spray pipe 9 through the connecting pipe 13. Through the setting of multiple partition plates 12, the fertilizer can fall into the spray pipe 9 in equal amounts, ensuring the uniformity of subsequent fertilization.

[0022] Reference Figure 3 , Figure 4 and Figure 5 The spreading mechanism includes a fixed rod 17 rotatably connected inside the cavity 6. A connecting plate 18 is rotatably connected to the top of the fixed rod 17. The top surface of the connecting plate 18 is fixedly connected to the outer wall of the spray pipe 9. A rotating rod 19 is rotatably connected through the bottom surface of the cavity 6. A second motor 20 is fixedly connected to the bottom of the vehicle body 1. The output end of the second motor 20 is fixedly connected to the bottom end of the rotating rod 19. A fixed plate 21 is fixedly connected to the top of the rotating rod 19. A support column 32 is fixedly connected to the top of one end of the fixed plate 21. A connecting rod 22 is rotatably connected to the outer wall of the support column 32. The end of the connecting rod 22 away from the support column 32 is rotatably connected to the bottom of the connecting plate 18.

[0023] In use, motor 20 can be started to drive the rotating rod 19 to rotate. Due to the rotation of the rotating rod 19, the fixed plate 21 at its top will also rotate. The fixed plate 21 is rotatably connected to the connecting plate 18 through the support column 32 and the connecting rod 22. Therefore, when the fixed plate 21 rotates, it will drive the connecting plate 18 to swing back and forth around the fixed rod 17. Since the top surface of the connecting plate 18 is fixedly connected to the outer wall of the spray pipe 9, the connecting plate 18 will drive the spray pipe 9 to swing back and forth. At this time, the fertilizer falling into the spray pipe 9 will be evenly thrown out under the action of centrifugal force, thereby achieving uniform fertilizer application and improving the uniformity and efficiency of fertilization.

[0024] Reference Figure 1 and Figure 6The vibration mechanism includes two support blocks 23 symmetrically fixedly connected inside the cavity 6. The two support blocks 23 are located on both sides of the bellows 7. Each of the two support blocks 23 is fixedly connected to a slide rod 24. A slider 25 is fixedly connected to the outer wall of the bellows 7. The two ends of the slider 25 are slidably connected to the outer walls of the two slide rods 24. Two springs 26 are sleeved on the outer walls of the two slide rods 24. The two ends of the two springs 26 are fixedly connected to one side of the slider 25 and the inner wall of the support block 23, respectively. A connecting shaft 27 is rotatably connected through the body 1. A motor 28 is fixedly connected to one side of the body 1. The output end of the motor 28 is fixedly connected to one end of the connecting shaft 27. A cam 29 is fixedly connected to the end of the connecting shaft 27 away from the motor 28 and is located inside one of the support blocks 23. The protruding end of the cam 29 can collide with one side of the slider 25.

[0025] In use, the motor 28 can be started to drive the connecting shaft 27 and the cam 29 to rotate. Since the protruding end of the cam 29 can collide with one side of the slider 25, when the cam 29 rotates, it will intermittently collide with the slider 25. The slider 25 that is collided will slide on the slide rod 24 and squeeze the spring 26. When the protruding end of the cam 29 moves away from the slider 25, the spring 26 will cause the slider 25 and the bellows 7 to vibrate according to the spring rebound. This effectively prevents the fertilizer from being blocked due to factors such as particle size and humidity during the process of conveying the fertilizer into the distribution plate 8, ensuring the continuity and stability of fertilizer application, and reducing the maintenance cost and downtime of the equipment.

[0026] As a technical optimization of this utility model: According to fertilization needs, the required fertilizer is poured into the hopper 5. Multiple compartments 31 within the hopper 5 can store various fertilizers, effectively meeting different fertilization requirements. When fertilization is needed, the valve in the corresponding discharge pipe 33 can be opened, allowing the fertilizer to enter the corrugated pipe 7. Guided by the corrugated pipe 7, the fertilizer gradually enters the distribution plate 8. Multiple partitions 12 inside the distribution plate 8 divide the interior into multiple equal spaces, and the fertilizer gradually enters the distribution plate 8 under the guidance of the corrugated pipe 7. Inside one of the spaces of the distribution disc 8, motor 16 can then be activated, causing motor 16 to drive gear 2 15 to rotate. Since gear 1 14 is meshed with gear 2 15, when gear 2 15 rotates, it will drive gear 14 to rotate. Gear 1 14 is fixedly connected to the outer wall of one end of the rotating shaft 11, so gear 14 will drive the rotating shaft 11 to rotate. In this way, the rotation of the rotating shaft 11 will drive multiple partition plates 12 to rotate together. At this time, the fertilizer will be transferred from one space inside the distribution disc 8 to another space until the fertilizer is transferred to the space connected to the spray pipe 9, thereby achieving uniform distribution of fertilizer. Subsequently, equal amounts of fertilizer fall into the spray pipe 9 through the connecting pipe 13. The multiple partition plates 12 ensure that the fertilizer falls into the spray pipe 9 in equal amounts, guaranteeing the uniformity of subsequent fertilization. These equal amounts of fertilizer then intermittently enter the spray pipe 9. At this time, the motor 20 can be activated to rotate the rotating rod 19. The rotation of the rotating rod 19 causes the fixed plate 21 at its top to rotate in a circular motion. The fixed plate 21 is rotatably connected to the connecting plate 18 via the support column 32 and the connecting rod 22. Therefore, when the fixed plate 21 rotates in a circular motion, it causes the connecting plate 18 to rotate around the fixed rod 17 as the center. The spray pipe 9 swings back and forth, and because the top surface of the connecting plate 18 is fixedly connected to the outer wall of the spray pipe 9, the connecting plate 18 will drive the spray pipe 9 to swing back and forth together. At this time, the fertilizer that falls into the spray pipe 9 will be evenly thrown out under the action of centrifugal force, thereby achieving uniform application of fertilizer and improving the uniformity and efficiency of fertilization. Through the cooperation of multiple partition plates 12 and spray pipe 9, it can be ensured that the fertilizer is evenly distributed in the farmland, avoiding differences in crop growth caused by uneven fertilization, and improving the overall yield and quality of crops. At the same time, the fan-shaped application can also effectively prevent fertilizer from falling into the machine, improving the utilization efficiency of fertilizer. Secondly, during equipment operation, motor 28 can be started to drive the connecting shaft 27 and cam 29 to rotate. Since the protruding end of cam 29 can collide with one side of slider 25, when cam 29 rotates, it will intermittently collide with slider 25. The slider 25 that is collided will slide on slide rod 24 and squeeze spring 26. When the protruding end of cam 29 moves away from slider 25, the rebound of spring 26 will cause slider 25 and bellows 7 to vibrate. This effectively prevents the clogging problem caused by particle size, humidity and other factors during the process of fertilizer being transported to the distribution plate 8, ensuring the continuity and stability of fertilizer application, and reducing equipment maintenance costs and downtime.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fertilizer spreading and distributing device, comprising a vehicle body (1), characterized in that: A handle (2) is fixedly connected to one side of the vehicle body (1). A controller (3) is provided on the handle (2). Moving wheels (4) are symmetrically arranged at the bottom of the vehicle body (1). A hopper (5) is fixedly connected to the top of the vehicle body (1). A cavity (6) is opened inside the vehicle body (1). A corrugated pipe (7) is fixedly connected to the bottom of the hopper (5). A distribution plate (8) is fixedly connected to the bottom of the corrugated pipe (7). A spray pipe (9) is rotatably arranged at the bottom of the distribution plate (8). The corrugated pipe (7), the distribution plate (8) and the spray pipe (9) are all located inside the cavity (6). A distribution mechanism is installed inside the distribution plate (8). A material spreading mechanism is installed inside the cavity (6). A shaking mechanism is installed inside the cavity (6).

2. The fertilizer spreading and distributing device as described in claim 1, characterized in that: The distribution mechanism includes connecting blocks (10) symmetrically fixedly connected to the outer wall of the distribution disk (8). One end of each of the two connecting blocks (10) is fixedly connected to the inner wall of the cavity (6). The distribution disk (8) is fixedly installed inside the cavity (6) through two sets of connecting blocks (10). A rotating shaft (11) is rotatably connected through the center of the inner circle of the distribution disk (8). Multiple partition plates (12) are fixedly connected to the outer wall of the rotating shaft (11). The multiple partition plates (12) are all located inside the distribution disk (8). A connecting pipe (13) is fixedly connected to the bottom of the distribution disk (8). The top end of the spray pipe (9) is rotatably connected inside the connecting pipe (13).

3. The fertilizer spreading and distributing device as described in claim 2, characterized in that: Gear 1 (14) is fixedly connected to the outer wall of one end of the rotating shaft (11), Gear 2 (15) is rotatably connected to one side of the vehicle body (1), Motor 1 (16) is fixedly connected to one side of the vehicle body (1), the output end of Motor 1 (16) is fixedly connected to one end of Gear 2 (15), and Gear 1 (14) and Gear 2 (15) are meshed.

4. The fertilizer spreading and distributing device as described in claim 1, characterized in that: The spreading mechanism includes a fixed rod (17) rotatably connected inside the cavity (6), a connecting plate (18) rotatably connected to the top of the fixed rod (17), the top surface of the connecting plate (18) being fixedly connected to the outer wall of the spray pipe (9), a rotating rod (19) rotatably connected through the bottom surface inside the cavity (6), a second motor (20) fixedly connected to the bottom of the vehicle body (1), the output end of the second motor (20) being fixedly connected to the bottom end of the rotating rod (19), a fixed plate (21) fixedly connected to the top of the rotating rod (19), a support column (32) fixedly connected to the top of one end of the fixed plate (21), a connecting rod (22) rotatably connected to the outer wall of the support column (32), and the end of the connecting rod (22) away from the support column (32) being rotatably connected to the bottom of the connecting plate (18).

5. A fertilizer spreading and distributing device as described in claim 1, characterized in that: The shaking mechanism includes support blocks (23) symmetrically fixedly connected inside the cavity (6). The two support blocks (23) are located on both sides of the bellows (7). Slide rods (24) are fixedly connected inside the two support blocks (23). A slider (25) is fixedly connected to the outer wall of the bellows (7). The two ends of the slider (25) are slidably connected to the outer walls of the two slide rods (24).

6. A fertilizer spreading and distributing device as described in claim 5, characterized in that: Two springs (26) are fitted on the outer walls of the two slide rods (24). The two ends of the two springs (26) are fixedly connected to one side of the slider (25) and the inner wall of the support block (23), respectively. A connecting shaft (27) is rotatably connected through the body (1). A motor three (28) is fixedly connected to one side of the body (1). The output end of the motor three (28) is fixedly connected to one end of the connecting shaft (27). A cam (29) is fixedly connected to the end of the connecting shaft (27) away from the motor three (28) and is located in one of the support blocks (23). The protruding end of the cam (29) can collide with one side of the slider (25).

7. A fertilizer spreading and distributing device as described in claim 1, characterized in that: The hopper (5) is fixedly connected to a baffle (30), and the hopper (5) is provided with multiple compartments (31). Multiple discharge pipes (33) are opened through the bottom of the baffle (30), and valves are provided in each of the multiple discharge pipes (33).

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