A dust removal device for rice processing

Abstract

This application relates to the field of rice processing technology and discloses a dust removal device for rice processing. It includes a rice container with an open top and a discharge hole at the center of its bottom. A dust removal mechanism is installed at the bottom of the rice container to remove powder and dust particles mixed in with the rice. The dust removal mechanism includes a dust removal feeding pipe, a bearing, a ring, an annular rice grain baffle, spiral guide vanes, a drive assembly, and a suction assembly. The dust removal feeding pipe is fixedly installed at the center of the bottom of the rice container. The ring is rotatably mounted inside the dust removal feeding pipe via the bearing. The annular rice grain baffle is fixedly installed on top of the ring and is located directly below the discharge hole. This application has the following advantages and effects: it can comprehensively and quickly remove powder and dust particles mixed in with the rice, achieving a highly efficient and comprehensive dust removal effect and improving the quality of the rice.

Description

Technical Field

[0001] This application relates to the field of rice processing technology, and in particular to a dust removal device for rice processing. Background Technology

[0002] In the rice processing industry, rice often becomes mixed with powder and dust after milling and polishing. If these impurities are not thoroughly removed, they will not only affect the appearance and taste of the rice, but may also cause problems such as clumping and mold growth during subsequent storage, transportation, and processing. Therefore, dust removal treatment of milled and polished rice is a crucial step in ensuring the quality of the finished product.

[0003] In existing technologies, traditional rice dust removal methods typically employ mechanical sieving. However, sieving rice dust removal devices rely mainly on gravity to separate rice from powder and debris. This method is not effective for separating smaller, lighter powder and dust particles, leaving some powder and dust adhering to the surface of the rice grains. As a result, the removal of powder and dust is incomplete, leading to insufficient and inefficient dust removal for rice and failing to meet the processing requirements for high-quality rice.

[0004] Therefore, we propose a dust removal device for rice processing to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a dust removal device for rice processing, which can quickly and comprehensively remove powder and dust mixed in with rice, achieving a highly efficient and comprehensive dust removal effect and improving the quality of rice.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: a dust removal device for rice processing, comprising a rice holding cylinder with an open top, a discharge hole at the center of the bottom of the rice holding cylinder, and a dust removal mechanism at the bottom of the rice holding cylinder for removing powder and dust mixed in with the rice. The dust removal mechanism includes a dust removal feeding pipe, a bearing, a ring, an annular rice grain baffle, a spiral guide vane, a drive assembly, and a dust suction assembly. The dust removal feeding pipe is fixedly installed at the center of the bottom of the rice holding cylinder, the ring is rotatably installed inside the dust removal feeding pipe through the bearing, the annular rice grain baffle is fixedly installed on the top of the ring and is located directly below the discharge hole, and the spiral guide vane is fixedly installed on the inner wall of the annular rice grain baffle.

[0007] By adopting the above technical solution, the annular rice grain baffle is used to block and intercept rice grains, preventing them from being discharged through the mesh of the annular rice grain baffle. It also allows powder and dust mixed in with the rice to pass through the mesh of the annular rice grain baffle and be discharged smoothly. The design of the spiral guide vanes increases the flow path of the rice in the dust removal feed pipe, thereby increasing the flow time of the rice in the dust removal feed pipe and helping to improve the dust removal effect.

[0008] A further feature of this application is that the diameter of the annular rice grain baffle is larger than the diameter of the discharge hole.

[0009] By adopting the above technical solution, it is possible to ensure that the rice in the rice container smoothly enters the annular rice grain baffle.

[0010] A further feature of this application is that a wear-resistant sealing ring is fixedly installed on the top of the annular rice grain baffle, the wear-resistant sealing ring is rotatably and sealingly fitted with the bottom surface of the rice container, and the wear-resistant sealing ring is connected to the discharge hole.

[0011] By adopting the above technical solution, the gap between the annular rice grain baffle and the bottom surface of the rice container is blocked, ensuring that all the rice falling from the discharge hole enters the annular rice grain baffle.

[0012] A further configuration of this application is as follows: the drive assembly includes a motor, a main gear, and a secondary gear. The motor is fixedly installed on the outer wall of the right side of the dust removal and feeding pipe. The main gear is fixedly installed on the output shaft end of the motor. The bottom of the ring extends to the outside of the dust removal and feeding pipe. The secondary gear is fixedly sleeved on the ring and located below the dust removal and feeding pipe. The main gear and the secondary gear mesh with each other.

[0013] By adopting the above technical solution, the motor is used to control the rotation of the main gear. By utilizing the meshing transmission action of the main gear and the auxiliary gear, the ring can be controlled to drive the annular rice grain baffle and the spiral guide vane to rotate.

[0014] A further configuration of this application is as follows: the dust collection assembly includes a dust collection box, an arc-shaped dust baffle, an annular dust collection pipe, a dust collection head, a dust conveying branch pipe, a dust conveying main pipe, an air pump, an air extraction pipe, and an air outlet pipe. The dust collection box is fixedly installed at the bottom of the rice container and located on the left side of the dust removal and feeding pipe. The arc-shaped dust baffle is fixedly installed inside the dust collection box. The annular dust collection pipe is fixedly installed on the inner wall of the dust removal and feeding pipe. The dust collection head is fixedly connected to the inner annular pipe wall of the annular dust collection pipe. The dust conveying branch pipe is fixedly connected to the annular... On the outer ring wall of the suction pipe, the left end of the dust conveying branch pipe extends to the outside of the dust removal discharge pipe. The dust conveying main pipe is fixedly installed on the right side wall of the dust collection box. One end of the dust conveying main pipe extends into the dust collection box. The left end of the dust conveying branch pipe is fixedly connected to the dust conveying main pipe. The air pump is fixedly installed on the left outer wall of the dust collection box. The air extraction pipe is fixedly installed at the suction end of the air pump. The end of the air extraction pipe away from the air pump extends into the dust collection box and is located on the left side of the arc-shaped dust baffle. The exhaust pipe is fixedly installed at the exhaust end of the air pump.

[0015] By adopting the above technical solution, the suction force generated by the air pump during operation creates a negative pressure inside the dust collection box, thereby effectively sucking the powder and dust mixed in with the rice into the dust collection box.

[0016] A further provision of this application is that the end of the air outlet pipe away from the air pump penetrates the left side wall of the rice container and extends into the discharge hole.

[0017] By adopting the above technical solution, on the one hand, the rice in the discharge hole can be blown out smoothly to prevent clogging, and on the other hand, the rice and powder dust can be further separated to further improve the dust removal effect.

[0018] The further configuration of this application is as follows: the number of the annular suction pipes is set to multiple, the multiple annular suction pipes are evenly distributed, the number of suction heads is set to multiple, the multiple suction heads are fixedly installed on the multiple annular suction pipes and are evenly distributed, the number of dust conveying branch pipes is the same as the number of annular suction pipes, one end of the multiple dust conveying branch pipes is fixedly connected to the corresponding annular suction pipe, and the other end of the multiple dust conveying branch pipes is fixedly connected to the dust conveying main pipe.

[0019] By adopting the above technical solution, multiple annular suction pipes and suction heads are evenly distributed, ensuring that the rice is within the negative pressure adsorption range throughout its fall, thus covering the rice's fall path in all directions and improving the comprehensiveness of dust removal.

[0020] A further feature of this application is that a cleaning port located on the right side of the arc-shaped dust filter is provided on the front side wall of the dust collection box, and a sealing cover is fixedly installed on the front outer wall of the dust collection box by screws, the sealing cover being adapted to the cleaning port.

[0021] By adopting the above technical solution, it is convenient to clean out the powder and dust in the dust collection box.

[0022] A further feature of this application is that the sealing cover is made of transparent tempered glass.

[0023] By adopting the above technical solution, it is convenient to observe the volume of powder and dust collected in the dust collection box.

[0024] A further feature of this application is that the bottom of the rice container is fixedly equipped with three support legs that are evenly spaced and arranged in a ring.

[0025] By adopting the above technical solution, a stable support is provided for the rice container 1, ensuring the smooth operation of the device.

[0026] This application includes at least one of the following beneficial technical effects:

[0027] 1. The dust removal mechanism designed in this application utilizes a motor to drive the main gear to rotate, which in turn drives the ring, the annular rice grain baffle, and the spiral guide vanes to rotate synchronously through meshing with the secondary gear. The rice in the rice container falls from the discharge hole into the annular rice grain baffle and falls along the spiral path of the spiral guide vanes, which can prolong the residence time in the annular rice grain baffle. Furthermore, under the centrifugal force generated by the rotation of the annular rice grain baffle and the spiral guide vanes, the separation of rice particles and powder dust can be accelerated, creating conditions for subsequent dust removal.

[0028] 2. The dust removal mechanism designed in this application utilizes the suction force generated by the operation of an air pump to continuously extract air from the dust collection box, creating a negative pressure inside. Multiple annular suction pipes and suction heads are evenly distributed to ensure that the rice falls within the annular rice grain baffle within a negative pressure adsorption range. Powder and dust mixed in with the rice are sucked into multiple suction heads, then sequentially pass through multiple annular suction pipes, multiple dust conveying branch pipes, and a main dust conveying pipe before entering the dust collection box. An arc-shaped dust baffle filters and intercepts the powder and dust, keeping them within the dust collection box. The filtered air is then discharged through the exhaust pipe, achieving a highly efficient and comprehensive dust removal effect.

[0029] 3. In the process of dust removal of rice, the dust removal mechanism designed in this application utilizes the airflow blown out from the air outlet pipe. On the one hand, it can blow the rice in the discharge hole to be discharged smoothly and prevent the blockage. On the other hand, it can further blow the rice and powder dust to separate them, thereby further improving the dust removal effect. Attached Figure Description

[0030] Figure 1 This is a front-view stereoscopic structural diagram of this embodiment.

[0031] Figure 2 This is a front view sectional three-dimensional structural schematic diagram of this embodiment.

[0032] Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle.

[0033] Figure 4 This is a three-dimensional structural diagram of the dust removal mechanism.

[0034] Figure 5 This is a three-dimensional structural diagram of a ring-shaped rice grain filter and a ring-shaped suction pipe.

[0035] Figure 6 This is a schematic diagram of the three-dimensional structure of the spiral guide vane.

[0036] In the diagram: 1. Rice container; 2. Support leg; 3. Discharge port; 4. Dust removal and feeding pipe; 5. Bearing; 6. Ring; 7. Annular rice grain baffle; 8. Motor; 9. Main gear; 10. Secondary gear; 11. Spiral guide vane; 12. Dust collection box; 13. Arc-shaped dust baffle; 14. Annular suction pipe; 15. Suction head; 16. Dust conveying branch pipe; 17. Dust conveying main pipe; 18. Air pump; 19. Suction pipe; 20. Air outlet pipe; 21. Sealing cover plate; 22. Wear-resistant sealing ring. Detailed Implementation

[0037] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0038] See Figures 1-6 This application provides a dust removal device for rice processing, including a rice holding cylinder 1 with an open top. A discharge hole 3 is located at the center of the bottom of the rice holding cylinder 1. A dust removal mechanism is installed at the bottom of the rice holding cylinder 1 to remove powder and dust particles mixed in with the rice. The dust removal mechanism includes a dust removal feeding pipe 4, a bearing 5, a ring 6, an annular rice grain baffle 7, spiral guide vanes 11, a drive assembly, and a dust suction assembly. The dust removal feeding pipe 4 is fixedly installed at the center of the bottom of the rice holding cylinder 1. The ring 6 is rotatably installed inside the dust removal feeding pipe 4 via the bearing 5. The bearing 5 provides stable support and positioning for the ring 6, ensuring smooth and stable rotation of the ring 6 within the dust removal feeding pipe 4. The annular rice grain baffle 7 is fixedly installed on the top of the circular ring 6, and is located directly below the discharge hole 3. The annular rice grain baffle 7 is used to block and intercept rice grains, preventing them from being discharged from the mesh on the annular rice grain baffle 7, and allowing powder and dust mixed in with the rice to pass through the mesh on the annular rice grain baffle 7 and be discharged smoothly. The spiral guide vane 11 is fixedly installed on the inner wall of the annular rice grain baffle 7. The spiral direction of the spiral guide vane 11 is the same as the rotation direction of the annular rice grain baffle 7. The design of the spiral guide vane 11 can increase the flow path of the rice in the dust removal discharge pipe 4, thereby increasing the flow time of the rice in the dust removal discharge pipe 4, which helps to improve the dust removal effect.

[0039] In this embodiment, the diameter of the annular rice grain baffle 7 is larger than the diameter of the discharge hole 3, which can ensure that the rice in the rice container 1 enters the annular rice grain baffle 7 smoothly.

[0040] In this embodiment, a wear-resistant sealing ring 22 is fixedly installed on the top of the annular rice grain baffle 7. The wear-resistant sealing ring 22 is rotatably sealed and fitted with the bottom surface of the rice holding cylinder 1. The wear-resistant sealing ring 22 is connected to the discharge hole 3. The design of the wear-resistant sealing ring 22 is to block the gap between the annular rice grain baffle 7 and the bottom surface of the rice holding cylinder 1, ensuring that all the rice falling from the discharge hole 3 enters the annular rice grain baffle 7.

[0041] In this embodiment, the drive assembly includes a motor 8, a main gear 9, and a secondary gear 10. The motor 8 is fixedly installed on the outer wall of the right side of the dust removal feeding pipe 4. The main gear 9 is fixedly installed on the output shaft end of the motor 8. The bottom of the ring 6 extends to the outside of the dust removal feeding pipe 4. The secondary gear 10 is fixedly sleeved on the ring 6 and located below the dust removal feeding pipe 4. The main gear 9 and the secondary gear 10 mesh. The motor 8 is used to control the rotation of the main gear 9. By utilizing the meshing transmission action of the main gear 9 and the secondary gear 10, the ring 6 can be controlled to drive the annular rice grain baffle 7 and the spiral guide vane 11 to rotate. Then, by utilizing the centrifugal force generated when the annular rice grain baffle 7 and the spiral guide vane 11 rotate, not only can the rice flow smoothly along the path of the spiral guide vane 11, but the rice and powder dust can also be more thoroughly separated by centrifugal force, which helps the dust collection assembly to more thoroughly and completely remove the powder dust.

[0042] In this embodiment, the dust collection assembly includes a dust collection box 12, an arc-shaped dust baffle 13, an annular suction pipe 14, a suction head 15, a dust conveying branch pipe 16, a dust conveying main pipe 17, an air pump 18, an air extraction pipe 19, and an air outlet pipe 20. The dust collection box 12 is fixedly installed at the bottom of the rice container 1 and located on the left side of the dust removal and feeding pipe 4. The arc-shaped dust baffle 13 is fixedly installed inside the dust collection box 12. The annular suction pipe 14 is fixedly installed on the inner side wall of the dust removal and feeding pipe 4. The suction head 15 is fixedly installed inside the rice container 12. A fixed connection is made to the inner ring wall of the annular suction pipe 14, and a fixed connection is made to the outer ring wall of the annular suction pipe 14. The left end of the dust conveying branch pipe 16 extends to the outside of the dust removal discharge pipe 4. The dust conveying main pipe 17 is fixedly installed on the right side wall of the dust collection box 12, and one end of the dust conveying main pipe 17 extends into the dust collection box 12. The left end of the dust conveying branch pipe 16 is fixedly connected to the dust conveying main pipe 17. The air pump 18 is fixedly installed on the left outer wall of the dust collection box 12, and the air extraction pipe 19 is fixedly installed on the outer side of the dust collection box 12. The suction pipe 19 is fixedly installed at the suction end of the suction pump 18. The end of the suction pipe 19 away from the suction pump 18 extends into the dust collection box 12 and is located on the left side of the arc-shaped dust baffle 13. The exhaust pipe 20 is fixedly installed at the exhaust end of the suction pump 18. The number of annular suction pipes 14 is set to be multiple and evenly distributed. The number of suction heads 15 is set to be multiple and fixedly installed on the multiple annular suction pipes 14 and evenly distributed. The number of dust conveying branch pipes 16 is the same as the number of annular suction pipes 14. One end of the multiple dust conveying branch pipes 16 is fixedly connected to the corresponding annular suction pipe 14, and the other end of the multiple dust conveying branch pipes 16 is fixedly connected to the dust conveying main pipe 17. The multiple annular suction pipes 14 and the multiple suction heads 15 cover the rice falling path in all directions. The suction force generated by the suction pump 18 during operation creates a negative pressure in the dust collection box 12, thereby effectively sucking the powder and dust mixed in with the rice into the dust collection box 12.

[0043] In this embodiment, the end of the air outlet pipe 20 away from the air pump 18 passes through the left side wall of the rice container 1 and extends into the discharge hole 3. The airflow blown out from the air outlet pipe 20 can, on the one hand, blow the rice in the discharge hole 3 smoothly out to prevent clogging, and on the other hand, it can further blow the rice and powder dust apart to further improve the dust removal effect.

[0044] In this embodiment, a cleaning port located on the right side of the arc-shaped dust filter 13 is provided on the front side wall of the dust collection box 12. A sealing cover plate 21 is fixedly installed on the front outer wall of the dust collection box 12 by screws. The sealing cover plate 21 is adapted to the cleaning port. The design of the sealing cover plate 21 and the cleaning port facilitates the cleaning out of powder and dust in the dust collection box 12. The sealing cover plate 21 is made of transparent tempered glass, which makes it easy to observe the volume of powder and dust collected in the dust collection box 12 and ensures that the sealing cover plate 21 has the advantages of being sturdy and durable.

[0045] In this embodiment, three equally spaced ring-shaped support legs 2 are fixedly installed at the bottom of the rice container 1. The design of the three support legs 2 provides stable support for the rice container 1 and ensures that the device operates smoothly.

[0046] In this embodiment, it should be noted that both the motor 8 and the air pump 18 are commercially available, and their wiring connection and control methods are mature technologies in the field and have been fully disclosed, so they will not be described in detail here.

[0047] With the above structure, the dust removal device for rice processing provided in this application, when in use, pours the milled and polished rice grains into the rice container 1. At the same time, the motor 8 and the air pump 18 are started. The output shaft of the motor 8 drives the main gear 9 to rotate, which in turn drives the ring 6 to rotate through the meshing secondary gear 10. This causes the annular rice grain baffle 7 and the spiral guide vanes 11 to rotate synchronously with the ring 6. The rice in the rice container 1 falls from the discharge hole 3 into the annular rice grain baffle 7. The rice entering the annular rice grain baffle 7 falls along the spiral path of the spiral guide vanes 11, prolonging its residence time in the annular rice grain baffle 7. Furthermore, under the centrifugal force generated by the rotation of the annular rice grain baffle 7 and the spiral guide vanes 11, the separation of rice grains and powder dust can be accelerated, creating conditions for dust removal. At this time, after the air pump 18 is running, it can continuously extract the air from the dust collection box 12, making the dust collection box... A negative pressure is created within the collection box 12. Multiple annular suction pipes 14 and suction heads 15 are evenly distributed to ensure that the rice falls within the annular rice grain baffle 7 under negative pressure throughout its descent. Powder and dust mixed in with the rice are sucked into the suction heads 15, then pass through multiple annular suction pipes 14, multiple dust conveying branch pipes 16, and the main dust conveying pipe 17 before entering the collection box 12. An arc-shaped dust baffle 13 filters and intercepts the powder and dust, keeping them within the collection box 12. The filtered air is then discharged through the exhaust pipe 20. The airflow from the exhaust pipe 20 not only facilitates the smooth discharge of rice from the discharge hole 3, preventing blockages, but also further separates the rice from the powder and dust, further improving the dust removal effect. The cleaned rice passes through the ring 6 and is discharged. Once the rice dust removal is complete, the motor 8 and the air pump 18 can be stopped.

Claims

1. A dust removal device for rice processing, characterized in that, The rice container (1) includes an open top structure. The rice container (1) has a discharge hole (3) at the center of its bottom. The bottom of the rice container (1) is equipped with a dust removal mechanism for removing powder and dust mixed in with the rice. The dust removal mechanism includes a dust removal feeding pipe (4), a bearing (5), a ring (6), an annular rice grain baffle (7), a spiral guide vane (11), a drive assembly, and a dust suction assembly. The dust removal feeding pipe (4) is fixedly installed at the center of the bottom of the rice container (1). The ring (6) is rotatably installed inside the dust removal feeding pipe (4) through the bearing (5). The annular rice grain baffle (7) is fixedly installed on the top of the ring (6) and is located directly below the discharge hole (3). The spiral guide vane (11) is fixedly installed on the inner wall of the annular rice grain baffle (7).

2. The dust removal device for rice processing according to claim 1, characterized in that: The diameter of the annular rice grain baffle (7) is larger than the diameter of the discharge hole (3).

3. The dust removal device for rice processing according to claim 1, characterized in that: The top of the annular rice grain baffle (7) is fixedly installed with a wear-resistant sealing ring (22), which rotates and seals against the bottom surface of the rice container (1), and is connected to the discharge hole (3).

4. The dust removal device for rice processing according to claim 1, characterized in that: The drive assembly includes a motor (8), a main gear (9), and a secondary gear (10). The motor (8) is fixedly installed on the outer wall of the right side of the dust removal feed pipe (4). The main gear (9) is fixedly installed on the output shaft end of the motor (8). The bottom of the ring (6) extends to the outside of the dust removal feed pipe (4). The secondary gear (10) is fixedly sleeved on the ring (6) and located below the dust removal feed pipe (4). The main gear (9) meshes with the secondary gear (10).

5. The dust removal device for rice processing according to claim 1, characterized in that: The dust collection assembly includes a dust collection box (12), an arc-shaped dust baffle (13), an annular dust collection pipe (14), a dust collection head (15), a dust conveying branch pipe (16), a dust conveying main pipe (17), an air pump (18), an air extraction pipe (19), and an air outlet pipe (20). The dust collection box (12) is fixedly installed at the bottom of the rice container (1) and located on the left side of the dust removal feed pipe (4). The arc-shaped dust baffle (13) is fixedly installed inside the dust collection box (12). The annular dust collection pipe (14) is fixedly installed on the inner wall of the dust removal feed pipe (4). The dust collection head (15) is fixedly connected to the inner annular pipe wall of the annular dust collection pipe (14). The dust conveying branch pipe (16) is fixedly connected to the outer annular pipe wall of the annular dust collection pipe (14). The left end of the dust conveying branch pipe (16) extends to the outside of the dust removal feed pipe (4). The dust conveying main pipe (17) is fixedly installed on the right side wall of the dust collection box (12). One end of the dust conveying main pipe (17) extends into the dust collection box (12). The left end of the dust conveying branch pipe (16) is fixedly connected to the dust conveying main pipe (17). The air pump (18) is fixedly installed on the left outer wall of the dust collection box (12). The air extraction pipe (19) is fixedly installed at the suction end of the air pump (18). The end of the air extraction pipe (19) away from the air pump (18) extends into the dust collection box (12) and is located on the left side of the arc-shaped dust baffle (13). The air outlet pipe (20) is fixedly installed at the exhaust end of the air pump (18).

6. The dust removal device for rice processing according to claim 5, characterized in that: The end of the air outlet pipe (20) away from the air pump (18) passes through the left side wall of the rice container (1) and extends into the discharge hole (3).

7. The dust removal device for rice processing according to claim 5, characterized in that: The number of the annular suction pipes (14) is set to be multiple, and the multiple annular suction pipes (14) are evenly distributed. The number of suction heads (15) is set to be multiple, and the multiple suction heads (15) are fixedly installed on the multiple annular suction pipes (14) and are evenly distributed. The number of dust conveying branch pipes (16) is the same as the number of annular suction pipes (14). One end of the multiple dust conveying branch pipes (16) is fixedly connected to the corresponding annular suction pipe (14), and the other end of the multiple dust conveying branch pipes (16) is fixedly connected to the dust conveying main pipe (17).

8. The dust removal device for rice processing according to claim 5, characterized in that: The dust collection box (12) has a cleaning port on the right side of the arc-shaped dust filter (13) on its front side wall. A sealing cover plate (21) is fixedly installed on the outer front side wall of the dust collection box (12) by screws. The sealing cover plate (21) is adapted to the cleaning port.

9. The dust removal device for rice processing according to claim 8, characterized in that: The sealing cover (21) is made of transparent tempered glass.

10. The dust removal device for rice processing according to claim 1, characterized in that: The bottom of the rice container (1) is fixedly equipped with three support legs (2) that are evenly spaced in a ring.

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