Bran dust settling and collecting device for rice production

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By designing a rice husk dust collection device, the dust collection wheel is used to capture rice husk dust and carry it into the water. Combined with a water storage chamber and an absorbent sponge to control the water flow, the problem of rice husk dust diffusion is solved, achieving efficient environmental purification and safety assurance.

CN223988270UActive Publication Date: 2026-03-13YINGKOU LUYUAN RICE IND CO LTD

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2025-03-19
Publication Date: 2026-03-13

AI Technical Summary

Technical Problem

During rice production, rice bran dust can easily seep through cloth bags into the surrounding environment, affecting the quality of the working environment and health, and posing safety hazards.

Method used

A rice bran dust collection device was designed, comprising a first chamber, a second chamber, and a dust collection wheel. The rotating dust collection wheel captures rice bran dust and carries it into the water. The water flow is controlled by setting up a water storage chamber and a water-absorbing sponge to ensure the adhesion rate and air permeability of rice bran dust on the mesh. Combined with the collection structure and a return pump, the floating rice bran dust is discharged.

Benefits of technology

It effectively removes chaff and dust, optimizes the working environment, improves purification efficiency, and ensures work safety.

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Abstract

The utility model relates to the technical field of rice processing, in particular to a bran dust settling and collecting device for rice production, which comprises a first box body, a second box body and a dust collecting wheel, the left side of the second box body is communicated with the first box body; an exhaust port is formed in the right side of the second box body; the dust collection wheel is rotatably arranged in the second box body; the dust collecting wheel comprises a wheel shaft and a plurality of filter screens, the wheel shaft is rotationally connected with the second box body, and the filter screens are fixedly arranged at intervals in the circumferential direction of the wheel shaft. Through the arrangement of the first box body, the second box body and the dust collecting wheel, bran dust generated during rice bran bagging can enter the second box body under the pushing of airflow and pass through the rotating dust collecting wheel, the continuously rotating dust collecting wheel can continuously bring the bran dust in the airflow into water, the purpose of continuously removing dust is achieved, and the working environment is optimized.

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Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, specifically to a rice production chaff and dust settling device. Background Technology

[0002] Rice bran, a significant byproduct of rice milling, is produced during the processing of brown rice into white rice using a rice milling machine. Traditionally, to collect this bran, a cloth bag is placed over the bran outlet of the rice milling machine, and airflow is used to blow the bran into the bag. However, because the cloth bag is breathable, smaller bran dust particles can easily pass through and enter the surrounding environment, resulting in a significant amount of bran dust in the air. This diffused bran dust not only affects the quality of the working environment and reduces visibility but may also adversely affect the health of workers. Furthermore, the accumulation of high concentrations of bran dust in the air poses certain safety hazards. To address these issues, this invention proposes a bran dust collection device for rice production. Utility Model Content

[0003] The purpose of this invention is to provide a rice husk dust collection device for rice production, which solves the problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution:

[0005] A rice production chaff and dust settling device includes:

[0006] The first box was placed over a cloth bag used to collect rice bran;

[0007] The second housing is connected to the first housing on its left side and has an exhaust port on its right side;

[0008] The dust collection wheel is rotatably mounted inside the second chamber;

[0009] The dust collection wheel includes an axle and several filter screens. The axle is rotatably connected to the second housing, and the filter screens are fixedly arranged at intervals along the circumference of the axle.

[0010] The filter screen includes a mesh frame and a mesh sheet. The mesh frame is fixed to the outer surface of the wheel axle. The mesh frame has slots on two opposite sides inside the mesh frame. The mesh sheet is installed in the slots inside the mesh frame.

[0011] A water storage cavity is provided on the side of the mesh frame away from the wheel axle, and a water outlet connected to the water storage cavity is provided on the inner side of the mesh frame corresponding to the position of the mesh sheet.

[0012] The water storage cavity is equipped with an absorbent sponge.

[0013] Optionally, a pressure plate is provided in the water storage cavity located on the side of the absorbent sponge away from the water outlet. A first magnet is fixed on the pressure plate, and a second magnet is fixed on the upper part of the second box. When the mesh frame moves to the upper part of the second box, the magnetic poles of the second magnet and the first magnet are the same on opposite sides.

[0014] Optionally, the second housing is provided with a collection structure, the collection structure comprising:

[0015] A collection box is fixedly installed on the side of the second box, and a drain outlet connected to the collection box is provided on the side wall of the second box.

[0016] A drain net is installed inside the collection box, dividing the inside of the collection box into an upper space and a lower space, with the drain outlet located in the upper space;

[0017] The reflux pump has its inlet end connected to the lower space of the collection box, and its outlet end connected to the second tank.

[0018] Optionally, the top of the collection box has an open structure, and a cover plate is rotatably connected to the opening position of the top of the collection box via a pivot.

[0019] Compared with the prior art, this utility model provides a rice husk dust collection device, which has the following beneficial effects:

[0020] This utility model, by setting up a first box, a second box, and a dust collection wheel, allows the rice bran dust generated during bagging to enter the second box under the propulsion of airflow and pass through the rotating dust collection wheel. The continuously rotating dust collection wheel can continuously carry the rice bran dust in the airflow into the water, achieving the purpose of continuous dust removal and optimizing the working environment.

[0021] This utility model sets a water storage chamber and a water outlet on the mesh frame. When the mesh frame rotates and passes the lower part of the second box, water will enter the water storage chamber. As the mesh frame rotates upward, the water in the water storage chamber will be discharged from the water outlet onto the mesh, continuously replenishing the mesh with moisture, improving the adhesion rate of rice husk dust on the mesh, and the water flow can also wash away some of the rice husk dust attached to the mesh holes, increasing the air permeability of the mesh and improving the purification efficiency.

[0022] This invention incorporates an absorbent sponge within the water storage chamber. Due to the sponge's absorbency, the outflow rate of water from the storage chamber can be better controlled, ensuring that the amount of water discharged onto the mesh is as uniform as possible, thereby improving the mesh's ability to process rice husks and dust. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This utility model Figure 1 A schematic diagram of the cross-sectional structure;

[0025] Figure 3 This is a schematic diagram of the second box and the collection structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the dust collection wheel of this utility model;

[0027] Figure 5 This is a cross-sectional structural diagram of the filter screen of this utility model.

[0028] In the diagram: 1. First box; 2. Second box; 3. Cloth bag; 4. Vent; 5. Axle; 6. Mesh; 7. Mesh frame; 8. Slot; 9. Water storage chamber; 10. Water outlet; 11. Absorbent sponge; 12. Pressure plate; 13. First magnet; 14. Second magnet; 15. Collection box; 16. Drainage net; 17. Return pump; 18. Cover plate; 19. Shaft; 20. Drain outlet; 21. Baffle; 22. Discharge pipe; 23. Connecting pipe. Detailed Implementation

[0029] 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.

[0030] Example: Please refer to Figures 1 to 5According to an embodiment of this utility model, a rice bran dust collection device is provided, comprising a first housing 1, a second housing 2, and a dust collection wheel. The first housing 1 is fitted over a cloth bag 3 for collecting rice bran. Specifically, the top of the first housing 1 has an inlet for the cloth bag 3, and a circular baffle 21 covers the inlet. A discharge pipe 22 is inserted through the middle of the baffle 21. The opening of the cloth bag 3 is fitted over the lower end of the discharge pipe 22 (i.e., the end of the discharge pipe 22 inserted into the first housing 1), and the upper end of the discharge pipe 22 is connected to the rice bran outlet of the rice milling machine. A connecting pipe 2 connects the left side of the second housing 2. 3 is connected to the first box 1, and the exhaust port 4 is provided on the right side of the second box 2; the dust collecting wheel is rotatably located inside the second box 2. Since there is airflow from the rice bran outlet of the rice milling machine, when this airflow passes through the second box 2, the dust collecting wheel can rotate clockwise under the drive of the airflow. Of course, the dust collecting wheel can also be driven to rotate counterclockwise by a motor (not shown). Therefore, the rotation direction of the dust collecting wheel can be either clockwise or counterclockwise; the dust collecting wheel includes a wheel axle 5 and several filter screens. The two ends of the wheel axle 5 are rotatably connected to the second box 2 through bearings, and the several filter screens are fixedly arranged at intervals along the circumference of the wheel axle 5.

[0031] The rice production bran dust collection device with the above structure adds an appropriate amount of water to the second chamber 2. When small rice bran particles pass through the cloth bag 3, bran dust is generated in the first chamber 1. This bran dust is pushed into the second chamber 2 by the airflow and flows towards the exhaust port 4. At this time, the dust collection wheel rotates under the drive of the airflow or the motor. When the filter screen of the dust collection wheel rotates to the lower part of the second chamber 2, it will be wetted by water, and a water film will also form at the mesh of the filter screen. When the dust collection wheel rotates to the upper part of the second chamber 2, the bran dust in the airflow moving towards the exhaust port 4 is wetted and captured by the water on the filter screen. Finally, this bran dust will be carried into the water by the rotating filter screen, while the air that has been dusted is discharged to the outside through the exhaust port 4 on the right side of the second chamber 2. In this way, the continuously rotating dust collection wheel can continuously carry bran dust into the water, achieving the purpose of continuous dust removal and optimizing the working environment.

[0032] In this exemplary embodiment, the filter screen includes a mesh frame 7 and a mesh sheet 6. The mesh frame 7 is fixed to the outer surface of the axle 5, and slots 8 are provided on two opposite sides of the inner side of the mesh frame 7. The mesh sheet 6 is installed in the slots 8 on the inner side of the mesh frame 7. The mesh frame 7 serves as a component supporting the mesh sheet 6, which is used to capture dust and chaff in the airflow. The mesh sheet 6 may become clogged during use and requires cleaning. Since the mesh sheet 6 is secured in the slots 8 of the mesh frame 7, it is relatively easy to assemble and disassemble. Therefore, the above design facilitates the assembly, disassembly, and cleaning of the mesh sheet 6.

[0033] In this exemplary embodiment, a water storage chamber 9 is provided on the side of the mesh frame 7 away from the axle 5, and a water outlet 10 connected to the water storage chamber 9 is provided on the inner side of the mesh frame 7 corresponding to the position of the mesh sheet 6. With this configuration, when the mesh frame 7 rotates past the lower part of the second box 2, water in the second box 2 will enter the water storage chamber 9 through the water outlet 10. As the mesh frame 7 rotates upward, under the action of gravity, the water in the water storage chamber 9 will be discharged from the water outlet 10 onto the mesh sheet 6, continuously replenishing the mesh sheet 6 with moisture, increasing the adhesion rate of rice husk dust on the mesh sheet 6, and the water flow can also wash away some of the rice husk dust attached to the mesh of the mesh sheet 6, increasing the air permeability of the mesh sheet 6 and improving the purification efficiency.

[0034] When water is discharged from outlet 10, its flow rate may be difficult to control, resulting in uneven water volume discharged onto mesh 6, which in turn affects the mesh 6's ability to process rice husk dust. Therefore, in this exemplary embodiment, an absorbent sponge 11 is provided inside the water storage chamber 9. Since the absorbent sponge 11 has a certain water absorption capacity, the water flow rate in the water storage chamber 9 can be better controlled by utilizing the water absorption capacity of the sponge 11, ensuring that the amount of water discharged onto mesh 6 is as uniform as possible, thereby improving the mesh 6's ability to process rice husk dust.

[0035] Although the absorbent sponge 11 can effectively control the water flow rate, a large portion of the water in the sponge 11 cannot be effectively discharged under gravity, resulting in the water not being fully utilized. Therefore, in this exemplary embodiment, a pressure plate 12 is provided in the water storage cavity 9 located on the side of the absorbent sponge 11 away from the outlet 10. A first magnet 13 is fixed on the pressure plate 12, and a second magnet 14 is fixed on the upper part of the second housing 2. When the mesh frame 7 moves to the upper part of the second housing 2, the magnetic poles of the second magnet 14 and the first magnet 13 are the same on opposite sides. When the mesh frame 7 rotates to below the second magnet 14, the first magnet 13, under the repulsive force of the second magnet 14, drives the pressure plate 12 to move towards the outlet 10. When the pressure plate 12 moves, it squeezes the absorbent sponge 11, thus squeezing out as much water as possible from the sponge 11. Moreover, this instantaneous squeezing operation can form a large water flow on the mesh 6. With the impact force of this water flow, it is easier to wash off the chaff and dust attached to the mesh 6.

[0036] Since the density of rice husk dust is less than that of water, the rice husk dust carried into the water by the mesh 6 will float on the water surface. If it is not discharged in time, this rice husk dust may stick to the mesh 6 again, affecting the air permeability of the mesh 6 and thus reducing its ability to handle rice husk dust. Therefore, in this exemplary embodiment, a collection structure is provided on the second box 2. The collection structure includes a collection box 15, a drain net 16, and a return pump 17. The collection box 15 is fixedly installed on the side of the second box 2. A drain outlet 20 connected to the collection box 15 is provided on the side wall of the second box 2. The drain outlet 20 is specifically a horizontally arranged elongated opening, which facilitates the rapid discharge of rice husk dust floating on the water surface. The drain net 16 is installed inside the collection box 15 and divides the inside of the collection box 15 into an upper space and a lower space. The drain outlet 20 is located in the upper space. The water inlet of the return pump 17 is connected to the lower space of the collection box 15, and the water outlet of the return pump 17 is connected to the second box 2. With this setup, firstly, ensure the water level in the second tank 2 reaches the drain outlet 20. Then, add an appropriate amount of water to the collection box 15 and start the return pump 17. The return pump 17 will pump the water in the collection box 15 into the second tank 2, causing the water in the second tank 2 to overflow from the drain outlet 20 into the collection box 15. The rice husk floating on the water surface will also enter the collection box 15. After entering the collection box 15, the sieve 16 will prevent the rice husk from entering the lower space of the collection box 15. The clean water will pass through the sieve 16 to reach the lower space of the collection box 15 and be pumped back into the second tank 2 by the return pump 17. This process is repeated to transfer the rice husk floating in the second tank 2 into the collection box 15, preventing the rice husk from sticking to the mesh 6 again.

[0037] To facilitate the removal of rice bran dust from the collection box 15, in this exemplary embodiment, the top of the collection box 15 has an open structure, and a cover plate 18 is rotatably connected to the opening at the top of the collection box 15 via a pivot 19. During the collection of rice bran using the cloth bag 3, the cover plate 18 remains closed, which prevents rice bran dust from entering the collection box 15 from the drain outlet 20 and then being discharged from the opening at the top of the collection box 15. When the rice bran collection is finished, flipping the cover plate 18 open allows for easy removal of the moistened rice bran dust from the collection box 15.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chaff dust settling device for rice production, characterized by, The utility model relates to a rice bran collecting device, which comprises: a first box (1) sleeved outside a cloth bag (3) for collecting rice bran; a second box (2) connected with the first box (1) on the left side and provided with an exhaust port (4) on the right side; a dust collecting wheel rotatably arranged in the second box (2); the dust collecting wheel comprises a wheel shaft (5) and a plurality of filter screens, the wheel shaft (5) is rotatably connected with the second box (2), and the plurality of filter screens are fixedly arranged along the circumference of the wheel shaft (5); each filter screen comprises a screen frame (7) and a screen sheet (6), the screen frame (7) is fixed to the outer surface of the wheel shaft (5), two opposite side surfaces on the inner side of the screen frame (7) are provided with clamping grooves (8), and the screen sheet (6) is arranged in the clamping grooves (8) on the inner side of the screen frame (7); a water storage cavity (9) is arranged on the side of the screen frame (7) away from the wheel shaft (5), and a water outlet (10) in communication with the water storage cavity (9) is arranged on the inner side of the screen frame (7) and corresponds to the position of the screen sheet (6); a water-absorbing sponge (11) is arranged in the water storage cavity (9) away from the water outlet (10) on the side of the water-absorbing sponge (11).

2. The chaff dust settling device for rice production according to claim 1, characterized by: a pressing plate (12) is arranged in the water storage cavity (9) away from the water outlet (10) on the side of the water-absorbing sponge (11), a first magnet (13) is fixed to the pressing plate (12), a second magnet (14) is fixed to the upper portion of the second box (2), and the magnetic poles of the second magnet (14) and the first magnet (13) are the same on the opposite sides when the screen frame (7) moves to the upper portion of the second box (2).

3. The chaff dust settling device for rice production according to claim 1 or 2, characterized by: a collecting structure is arranged on the second box (2) and comprises: a collecting box (15) fixedly arranged on the side of the second box (2), a drain port (20) in communication with the collecting box (15) is arranged on the side wall of the second box (2); a draining net (16) arranged in the collecting box (15) and separating the collecting box (15) into an upper space and a lower space, and the drain port (20) is arranged in the upper space; a backflow pump (17) with an inlet end in communication with the lower space of the collecting box (15) and an outlet end connected to the second box (2).

4. The chaff dust settling device for rice production according to claim 3, characterized by: the top of the collecting box (15) is an open structure, and a cover plate (18) is rotatably connected to the open position of the top of the collecting box (15) through a rotating shaft (19).