A purification device for grain storage pretreatment

Abstract

This utility model discloses a grain pretreatment impurity removal device, relating to the field of grain impurity removal technology. Specifically, it is a device for grain pretreatment, comprising a frame, a drum screen, an inlet, and an outlet. The drum screen is arranged at an angle between the frames, and its radial cross-section is a regular octagon. A lifting plate is fixedly connected to the inner side of the drum screen. A second support leg is fixedly connected to the upper side of the frame, and an air pipe is fixedly connected to the upper side of the second support leg. A nozzle is fixedly connected to the outer side of the air pipe. This grain pretreatment impurity removal device, through the combined arrangement of the drum screen with its regular pentagonal radial cross-section and the lifting plate, can lift and scatter the grain within the drum screen during use, ensuring even grain distribution, eliminating screening dead zones, preventing grain accumulation, and improving screening efficiency.

Description

Technical Field

[0001] This utility model relates to the field of grain impurity removal technology, specifically to an impurity removal device for grain storage pretreatment. Background Technology

[0002] Grains refer to the general term for various plant seeds used in cooking, and can also be broadly referred to as "cereals." Grain crops are rich in nutrients, mainly protein, vitamins, dietary fiber, and fats. The Food and Agriculture Organization of the United Nations (FAO) defines grains as including wheat, legumes, whole grains, and rice.

[0003] After harvesting, grain needs to be stored to ensure a better supply in the future. During the storage process, impurities are often removed to maintain the quality of the stored grain.

[0004] The screens of existing drum-type impurity removal equipment are easily clogged by impurities, reducing efficiency and requiring frequent manual cleaning. Furthermore, during impurity removal, grain accumulates at the bottom of the drum, failing to disperse sufficiently and affecting the removal effect. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a purification device for grain storage pretreatment, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution To achieve the above objectives, this utility model is implemented through the following technical solution: a cleaning device for grain storage pretreatment, comprising a frame, a drum screen, an inlet, and an outlet, wherein a drum screen is arranged between the frames, the drum screen is arranged at an inclination, the radial cross-section of the drum screen is a regular octagon, a lifting plate is fixedly connected to the inner side of the drum screen, a second support leg is fixedly connected to the upper side of the frame, an air pipe is fixedly connected to the upper side of the second support leg, and a nozzle is fixedly connected to the outer side of the air pipe.

[0007] Optionally, the number of air pipes is two, and the two air pipes are distributed on both sides of the drum screen, and the number of lifting plates is eight.

[0008] Optionally, the frame includes a first support leg, a support crossbar is fixedly connected to the upper side of the first support leg, and a first support ramp and a second support ramp are fixedly connected to the upper side of the support crossbar.

[0009] Optionally, a motor is fixedly connected to the upper side of the first support inclined plate, and the output shaft of the motor is fixedly connected to a rotating shaft via a coupling. A support rod is fixedly connected to the outer side of the rotating shaft, and the other end of the support rod is fixedly connected to the inner wall of the drum screen. A bearing is rotatably connected to the outer side of the rotating shaft, and a bearing seat is rotatably connected to the outer side of the bearing. The bearing seat is fixedly connected to the upper side of the first support inclined plate and the second support inclined plate.

[0010] Optionally, a third support leg is fixedly connected to the upper side of the first support inclined plate, and a feed inlet is fixedly connected to the upper side of the third support leg.

[0011] Optionally, a first rectangular plate is fixedly connected to the side of the first support leg, an inclined plate is fixedly connected to one side of the first rectangular plate, a second rectangular plate is fixedly connected to one side of the inclined plate, a horizontal plate is fixedly connected to the side of the second rectangular plate, a guide plate is fixedly connected to the upper side of the horizontal plate, a fourth support leg is fixedly connected to the lower side of the inclined plate, a discharge port is fixedly connected to the upper side of the inclined plate, and a baffle is fixedly connected to one side of the first rectangular plate, the inclined plate, the second rectangular plate, and the horizontal plate.

[0012] This utility model provides a purification device for grain storage pretreatment, which has the following beneficial effects: 1. This impurity removal device for grain storage pretreatment uses a drum screen with a radial cross-section of regular octagon and a lifting plate to lift and scatter the grain in the drum screen during use, so that the grain is evenly distributed, eliminating screening dead corners, thereby avoiding grain accumulation and improving screening efficiency.

[0013] 2. This impurity removal device for grain storage pretreatment, through the coordinated arrangement of the second support leg, air pipe and nozzle, enables the device to continuously spray high-pressure airflow into the drum screen during use, blowing out impurities blocked in the drum screen holes, avoiding the reduction of screening effect due to large-scale blockage of the screen holes, thus playing the role of preventing the drum screen holes from being blocked and achieving the purpose of ensuring screening quality. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a top view of the present invention; Figure 4 This is a schematic diagram of the drum screen structure of this utility model; Figure 5 This is a schematic diagram of part of the structure of this utility model; Figure 6This is a cross-sectional schematic diagram of part of the structure of this utility model.

[0015] In the diagram: 1. Frame; 101. First support leg; 102. Support crossbar; 103. First support inclined plate; 104. Second support inclined plate; 2. Rotary drum screen; 3. Lifting plate; 4. Second support leg; 5. Air pipe; 6. Nozzle; 7. Motor; 8. Coupling; 9. Rotating shaft; 10. Bearing seat; 11. Third support leg; 12. Feed inlet; 13. First rectangular plate; 14. Inclined plate; 15. Second rectangular plate; 16. Horizontal plate; 17. Inclined guide plate; 18. Fourth support leg; 19. Discharge outlet; 20. Support rod; 21. Baffle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Please see Figures 1 to 6 The present invention provides a technical solution: a cleaning device for grain storage pretreatment, comprising a frame 1, a drum screen 2, an inlet 12, and an outlet 19. The drum screen 2 is arranged between the frames 1, and the drum screen 2 is arranged at an inclination. The radial cross-sectional shape of the drum screen 2 is a regular octagon. The inner side of the drum screen 2 is fixedly connected to a lifting plate 3. The upper side of the frame 1 is fixedly connected to a second support leg 4. The upper side of the second support leg 4 is fixedly connected to an air pipe 5. The outer side of the air pipe 5 is fixedly connected to a nozzle 6. There are two air pipes 5, which are distributed on both sides of the drum screen 2. There are eight lifting plates 3. During rotation, the octagonal drum screen 2, with its radial cross-section, can lift and scatter the grain inside the drum more effectively by utilizing the plane and angular structure of the octagon. This effectively breaks the inertia of the grain sliding with the circular drum, causing it to tumble and disperse more violently. The lifting plate 3 enhances this effect, allowing the grain to briefly remain on the lifting plate 3. As the drum screen 2 rotates, the grain on the lifting plate 3 falls back onto the lower side of the drum screen 2, allowing the grain to be separated from impurities more fully and improving screening efficiency. The nozzles 6 on the two air pipes 5 are arranged in an alternating manner, so that the airflow from the nozzles 6 on both sides complements each other, forming a clean area without dead corners on the surface of the drum screen 2. This avoids insufficient cleaning in some areas and also avoids the nozzles on the same air pipe 5 being too dense, which would cause unstable air pressure and reduce the air pressure from a single nozzle 6, thus affecting the cleaning efficiency. By combining the octagonal drum screen 2 and the lifting plate 3, the device can lift and scatter the grain inside the drum screen 2 during use, ensuring even distribution of the grain and eliminating screening dead corners. This prevents grain accumulation and improves screening efficiency. The second support leg 4, air pipe 5, and nozzle 6 work together to continuously spray high-pressure airflow into the drum screen 2 during use, blowing out impurities that are blocked in the screen holes. This prevents the screening effect from being reduced due to excessive clogging of the screen holes, thus ensuring screening quality. The frame 1 includes a first support leg 101, a support crossbar 102 is fixedly connected to the upper side of the first support leg 101, a first support inclined plate 103 and a second support inclined plate 104 are fixedly connected to the upper side of the support crossbar 102, a third support leg 11 is fixedly connected to the upper side of the first support inclined plate 103, and a feed inlet 12 is fixedly connected to the upper side of the third support leg 11. A motor 7 is fixedly connected to the upper side of the first support inclined plate 103. The output shaft of the motor 7 is fixedly connected to a rotating shaft 9 through a coupling 8. A support rod 20 is fixedly connected to the outer side of the rotating shaft 9. The other end of the support rod 20 is fixedly connected to the inner wall of the drum screen 2. A bearing is rotatably connected to the outer side of the rotating shaft 9. A bearing seat 10 is rotatably connected to the outer side of the bearing. The bearing seat 10 is fixedly connected to the upper side of the first support inclined plate 103 and the second support inclined plate 104. A first rectangular plate 13 is fixedly connected to the side of the first support leg 101. An inclined plate 14 is fixedly connected to one side of the first rectangular plate 13. A second rectangular plate 15 is fixedly connected to one side of the inclined plate 14. A horizontal plate 16 is fixedly connected to the side of the second rectangular plate 15. An inclined guide plate 17 is fixedly connected to the upper side of the horizontal plate 16. A fourth support leg 18 is fixedly connected to the lower side of the inclined plate 14. A discharge port 19 is fixedly connected to the upper side of the inclined plate 14. A baffle 21 is fixedly connected to one side of the first rectangular plate 13, the inclined plate 14, the second rectangular plate 15, and the horizontal plate 16.

[0018] During operation, the grain to be impurities removed is poured into the feed inlet 12. The drum screen 2 rotates under the drive of the motor 7. As the drum screen 2 rotates, impurities in the grain pass through the screen holes and fall onto the lower inclined plate 14 under the influence of gravity and tumbling. They then slide down the inclined plate 14 to the lower inclined guide plate 17. Because the upper side of the inclined guide plate 17 is inclined, as impurities accumulate, they gradually slide downwards along the inclined guide plate 17 and are eventually discharged from the outlet. The screened grain is then discharged from the discharge outlet 19. During the rotation of the drum screen 2, the internal lifting plates 3 continuously lift and scatter the grain, ensuring even distribution and thorough agitation, eliminating dead zones and improving screening efficiency. During the screening process, the nozzles 6 continuously spray high-pressure gas into the drum screen 2, using the airflow impact force to blow away impurities stuck in the screen holes, preventing clogging and ensuring screening quality.

[0019] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A grain storage pretreatment impurity removal device, comprising a frame (1), a drum screen (2), an inlet (12), and an outlet (19), characterized in that: A drum screen (2) is arranged between the frames (1). The drum screen (2) is arranged at an incline. The radial cross-sectional shape of the drum screen (2) is a regular octagon. A lifting plate (3) is fixedly connected to the inner side of the drum screen (2). A second support leg (4) is fixedly connected to the upper side of the frame (1). An air pipe (5) is fixedly connected to the upper side of the second support leg (4). A nozzle (6) is fixedly connected to the outer side of the air pipe (5).

2. The impurity removal device for grain storage pretreatment according to claim 1, characterized in that: The number of air pipes (5) is two, and the two air pipes (5) are distributed on both sides of the drum screen (2). The number of lifting plates (3) is eight.

3. The impurity removal device for grain storage pretreatment according to claim 1, characterized in that: The frame (1) includes a first support leg (101), and a support crossbar (102) is fixedly connected to the upper side of the first support leg (101). A first support ramp (103) and a second support ramp (104) are fixedly connected to the upper side of the support crossbar (102).

4. The impurity removal device for grain storage pretreatment according to claim 3, characterized in that: A motor (7) is fixedly connected to the upper side of the first support inclined plate (103). The output shaft of the motor (7) is fixedly connected to a rotating shaft (9) via a coupling (8). A support rod (20) is fixedly connected to the outer side of the rotating shaft (9). The other end of the support rod (20) is fixedly connected to the inner wall of the drum screen (2). A bearing is rotatably connected to the outer side of the rotating shaft (9). A bearing seat (10) is rotatably connected to the outer side of the bearing. The bearing seat (10) is fixedly connected to the upper side of the first support inclined plate (103) and the second support inclined plate (104).

5. A purification device for grain storage pretreatment according to claim 3, characterized in that: The upper side of the first support inclined plate (103) is fixedly connected to a third support leg (11), and the upper side of the third support leg (11) is fixedly connected to a feed inlet (12).

6. The impurity removal device for grain storage pretreatment according to claim 3, characterized in that: A first rectangular plate (13) is fixedly connected to the side of the first support leg (101). An inclined plate (14) is fixedly connected to one side of the first rectangular plate (13). A second rectangular plate (15) is fixedly connected to one side of the inclined plate (14). A horizontal plate (16) is fixedly connected to the side of the second rectangular plate (15). An inclined guide plate (17) is fixedly connected to the upper side of the horizontal plate (16). A fourth support leg (18) is fixedly connected to the lower side of the inclined plate (14). A discharge port (19) is fixedly connected to the upper side of the inclined plate (14). A baffle (21) is fixedly connected to one side of the first rectangular plate (13), the inclined plate (14), the second rectangular plate (15), and the horizontal plate (16).

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