Flying dust control device for rice processing

Abstract

The present invention relates to the technical field of rice processing. Disclosed is a flying dust control device for rice processing. The flying dust control device of the present invention comprises a frame, wherein a screening cylinder is mounted inside the frame; a transmission shaft capable of automatically rotating is mounted inside the screening cylinder; a dust suction fan is mounted on an outer side of the transmission shaft; a sliding frame is sleeved on the outer side of the transmission shaft; a guide frame is provided inside the frame; an inner protruding block is provided on an inner wall of the sliding frame; a pushing rod capable of coming into contact with the inner protruding block is provided on the outer side of the transmission shaft; a dust suction filter cylinder capable of automatically rotating is mounted on an outer side of the sliding frame; outer filter plates are provided on both sides of the dust suction filter cylinder; and the dust suction filter cylinder is sleeved on the outer side of the transmission shaft. In the present invention, by means of making rice raw materials fall onto outer filter plates, the outer filter plates descend under the action of the gravity of the rice raw materials, and at the time, an initial position of an inner protruding block approaches the center of rotation of a pushing rod, and thus the screening and filtering range can be automatically expanded, and the screening efficiency is high.

Description

A fly dust control device for rice processing Technical Field

[0001] The present invention relates to the technical field of rice processing, and in particular to a flying dust control device for rice processing. Background Art

[0002] The processing of raw rice is prone to dust generation. Due to different harvesting, drying and storage methods of raw rice, the raw rice will contain a variety of impurities. When rice processing equipment processes rice, the raw rice is usually cleaned and impurities are removed. This process is very likely to generate dust. If improper protective measures are taken, a large amount of dust will overflow and cause air pollution.

[0003] A Chinese patent application (application number: CN202120460667.5) discloses a dust removal device for rice processing, comprising a housing, a hydraulic cylinder fixedly mounted on one side of the housing, and a water tank fixedly connected to the other side of the housing. The hydraulic cylinder is provided with a connecting rod, and a fan fixedly mounted on the top of the water tank, the fan being provided with a dust suction pipe and a dust guide pipe. By using the dust suction pipe, fan, dust hood, dust guide pipe, adsorption net, and water tank in combination, the dust inside the housing can be absorbed and processed, preventing the dust from being directly discharged into the atmosphere and causing environmental pollution, thereby improving environmental quality.

[0004] This patent and the prior art have the following technical problems in actual use:

[0005] 1. The rice processing dust removal equipment uses two separate drives for screening and dust removal, resulting in a complex structure and high manufacturing cost.

[0006] 2. The dust removal equipment for rice processing cannot automatically adjust the screening intensity according to the screening amount of rice raw materials, and the screening efficiency is low.

[0007] Summary of the Invention

[0008] The purpose of the present invention is to solve the problems of complex screening dust removal structure and inability to automatically adjust the screening intensity according to the screening amount of rice raw materials. The present invention provides a fly dust control device for rice processing.

[0009] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0010] A fly dust control device for rice processing comprises a frame, a screening drum is mounted inside the frame, a transmission shaft capable of automatically rotating is mounted inside the screening drum, a dust suction fan is mounted on the outer side of the transmission shaft, a slide is sleeved on the outer side of the transmission shaft, a guide frame is disposed inside the frame, the slide is slidably connected to the guide frame, a top spring is disposed between the slide and the inner wall of the guide frame, an inner convex block is disposed on the inner wall of the slide, and a lever capable of contacting the inner convex block is disposed on the outer side of the transmission shaft;

[0011] An automatically rotatable dust filter cartridge is installed on the outer side of the slide, outer filter plates are provided on both sides of the dust filter cartridge, and the dust filter cartridge is sleeved on the outer side of the transmission shaft.

[0012] Furthermore, a T-shaped ring groove is provided inside the slide, a swivel is rotatably installed inside the T-shaped ring groove, the dust filter cartridge is fixedly connected to the swivel, a tooth groove is provided on the inner side of the swivel, a drive motor is installed on the outer side of the slide, a drive wheel is installed on the output end of the drive motor, and the drive wheel is engaged with the tooth groove.

[0013] Furthermore, a motor cavity is opened at the right end of the frame, a dust suction motor is installed inside the motor cavity, and the transmission shaft is connected to the output end of the dust suction motor.

[0014] Furthermore, a dust suction chamber is opened at the left end of the frame, and a telescopic air pipe that can be connected to an external dust removal device is installed at the outlet of the dust suction chamber, and the dust suction chamber is connected to the dust suction filter cartridge.

[0015] Furthermore, the motor cavity and the dust suction cavity are separated from the screening cavity inside the screening cylinder by a rubber baffle. A fixing ring is provided inside the rubber baffle, and the fixing ring is fixedly connected to the dust suction filter cylinder. Both ends of the dust suction filter cylinder extend into the motor cavity and the dust suction cavity respectively. Two groups of guide frames are provided, and the two groups of guide frames are respectively provided in the motor cavity and the dust suction cavity. The dust suction fan is located in the dust suction cavity.

[0016] Furthermore, a bracket is fixedly connected to the outer side of the slide, and an electromagnetic ring is installed on the side of the bracket close to the lever. When the electromagnetic ring is energized to generate magnetic force, it can attract the lever. A spiral guide groove is provided on the outer side of the transmission shaft, and the lever is sleeved on the transmission shaft. A clamping block is provided on the inner wall of the lever, and the clamping block is clamped in the spiral guide groove. A return spring is provided between the clamping block and the inner wall of the spiral guide groove. An external protrusion is provided on the outer side of the slide, and two groups of external protrusions are provided. The two groups of external protrusions are respectively located above and below the transmission shaft.

[0017] Furthermore, the angle between the two ends of the spiral guide groove is a right angle.

[0018] Furthermore, the filtration radius of the dust filter cartridge is smaller than the filtration radius of the outer filter plate.

[0019] Furthermore, a feed hopper is provided on the top of the screening cylinder, and a discharge hopper is provided on the bottom of the screening cylinder. Both the feed hopper and the discharge hopper are provided in the middle of the screening cylinder.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The present invention controls the rotation of the transmission shaft, which drives the dust suction fan to rotate. At the same time, the transmission shaft drives the shift lever to rotate. When the shift lever rotates to the position of the inner convex block, the shift lever pushes the slide to rise through the inner convex block, and the slide drives the dust suction filter cartridge to rise. When the shift lever moves away from the inner convex block, the top spring drives the slide to descend. As the dust suction fan continues to run, the dust suction filter cartridge slides up and down to generate vibration, thereby screening the rice raw material. The rice raw material can be screened while dust is being sucked, and the structure is compact and the manufacturing cost is low.

[0022] 2. The present invention allows the rice raw material to fall onto the outer filter plate, which then descends under the action of the gravity of the rice raw material. At this time, the initial position of the inner protrusion is close to the rotation center of the lever, thereby automatically increasing the screening amplitude and improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is an overall schematic diagram of the present invention;

[0024] FIG2 is a schematic cross-sectional view of the present invention;

[0025] FIG3 is a schematic diagram of the internal dust collection structure of the present invention;

[0026] FIG4 is a schematic diagram of a dust filter cartridge according to the present invention;

[0027] FIG5 is a partial schematic diagram of the carriage of the present invention;

[0028] FIG6 is a schematic diagram of the lever of the present invention;

[0029] FIG. 7 is a schematic diagram of the connection structure of the rubber baffle of the present invention.

[0030] Figure numerals: 1. Frame; 2. Screening drum; 3. Feed hopper; 4. Discharge hopper; 5. Motor chamber; 6. Dust suction chamber; 7. Telescopic air pipe; 8. Guide frame; 9. Slide; 10. Rotating ring; 11. Driving wheel; 12. Dust suction filter cartridge; 13. Outer filter plate; 14. Dust suction motor; 15. Transmission shaft; 16. Dust suction fan; 17. Top spring; 18. Push rod; 19. Block; 20. Inner protrusion; 21. Bracket; 22. Electromagnetic ring; 23. Outer protrusion; 24. Spiral guide groove; 25. Fixing ring; 26. Rubber baffle. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0032] As shown in Figures 1 to 7, a fly dust control device for rice processing includes a frame 1, a screening drum 2 is mounted inside the frame 1, an automatically rotatable transmission shaft 15 is mounted inside the screening drum 2, a dust suction fan 16 is mounted on the outside of the transmission shaft 15, a slide 9 is sleeved on the outside of the transmission shaft 15, a guide frame 8 is disposed inside the frame 1, the slide 9 is slidably connected to the guide frame 8, a top spring 17 is disposed between the slide 9 and the inner wall of the guide frame 8, an inner protrusion 20 is disposed on the inner wall of the slide 9, and a lever 18 is disposed on the outer side of the transmission shaft 15 to contact the inner protrusion 20;

[0033] An automatically rotatable dust filter cartridge 12 is mounted on the outer side of the slide 9 , and outer filter plates 13 are provided on both sides of the dust filter cartridge 12 . The dust filter cartridge 12 is sleeved on the outer side of the transmission shaft 15 .

[0034] When in use, the transmission shaft 15 is controlled to rotate, and the transmission shaft 15 drives the dust suction fan 16 to rotate, and the dust suction fan 16 generates suction, and at the same time the transmission shaft 15 drives the driving lever 18 to rotate. When the driving lever 18 rotates to the position of the inner convex block 20, the driving lever 18 pushes the slide 9 to rise through the inner convex block 20, and the slide 9 drives the dust suction filter cartridge 12 to rise. When the driving lever 18 is away from the inner convex block 20, the top spring 17 drives the slide 9 to fall. As the dust suction fan 16 continues to run, the dust suction filter cartridge 12 slides up and down to generate vibration, and the dust suction filter cartridge 12 drives the outer filter plate 13 to vibrate, thereby screening the rice raw material. The rice raw material can be screened while the dust is being sucked, and the structure is compact and the manufacturing cost is low.

[0035] The rice material is directly added to the outer filter plate 13. When the amount of rice material increases, the outer filter plate 13 descends under the action of the weight of the rice material. At this time, the initial position of the inner protrusion 20 is close to the rotation center of the lever 18. As the transmission shaft 15 rotates at the same speed, the vibration amplitude of the outer filter plate 13 changes, thereby automatically increasing the filtration intensity and improving the filtration efficiency.

[0036] After the filtration is completed, the dust filter cartridge 12 is controlled to rotate, and the dust filter cartridge 12 drives the outer filter plate 13 to turn over, with the filtering surface of the outer filter plate 13 facing downward, and then the transmission shaft 15 is controlled to rotate, and the transmission shaft 15 makes the outer filter plate 13 vibrate, thereby automatically cleaning the outer filter plate 13, which is convenient to use.

[0037] As shown in Figure 5, in some embodiments, a T-shaped ring groove is provided inside the slide 9, a swivel 10 is rotatably installed inside the T-shaped ring groove, a dust filter cartridge 12 is fixedly connected to the swivel 10, a tooth groove is provided on the inner side of the swivel 10, a drive motor is installed on the outer side of the slide 9, a drive wheel 11 is installed on the output end of the drive motor, and the drive wheel 11 is engaged with the tooth groove.

[0038] By controlling the rotation of the driving motor, the driving motor drives the driving wheel 11 to rotate, the driving wheel 11 drives the rotating ring 10 to rotate through the tooth groove, the rotating ring 10 drives the dust filter cartridge 12 to rotate, the dust filter cartridge 12 drives the outer filter plate 13 to turn over, and the filtering surface of the outer filter plate 13 faces downward, and then the transmission shaft 15 is controlled to rotate, the transmission shaft 15 makes the outer filter plate 13 vibrate, and then the outer filter plate 13 can be automatically cleaned, which is convenient to use.

[0039] As shown in Figures 2 and 3, in some embodiments, a motor cavity 5 is opened at the right end of the frame 1, and a dust suction motor 14 is installed inside the motor cavity 5. The transmission shaft 15 is connected to the output end of the dust suction motor 14. Through this design, the dust suction motor 14 will not be contaminated and the operation is stable.

[0040] As shown in Figure 2, in some embodiments, a dust suction chamber 6 is opened at the left end of the frame 1, and a telescopic air pipe 7 that can be connected to the external dust removal device is installed at the outlet of the dust suction chamber 6. The dust suction chamber 6 is connected to the dust suction filter cartridge 12. The setting of the dust suction chamber 6 improves the dust suction stability.

[0041] As shown in Figures 2 and 7, in some embodiments, the motor cavity 5 and the dust suction cavity 6 are separated from the internal screening cavity of the screening cylinder 2 by a rubber baffle 26. A fixing ring 25 is provided inside the rubber baffle 26. The fixing ring 25 is fixedly connected to the dust suction filter cartridge 12. Both ends of the dust suction filter cartridge 12 extend into the motor cavity 5 and the dust suction cavity 6 respectively. Two groups of guide frames 8 are provided, and the two groups of guide frames 8 are respectively provided in the motor cavity 5 and the dust suction cavity 6. The dust suction fan 16 is located in the dust suction cavity 6. Through the arrangement of the rubber baffle 26 and the fixing ring 25, when the dust suction filter cartridge 12 vibrates, the rice raw material will not enter the dust suction cavity 6 and the motor cavity 5, and the filtration is stable.

[0042] As shown in Figure 5, in some embodiments, a bracket 21 is fixedly connected to the outer side of the slide 9, and an electromagnetic ring 22 is installed on the side of the bracket 21 close to the lever 18. When the electromagnetic ring 22 is energized to generate magnetic force, it can attract the lever 18. A spiral guide groove 24 is provided on the outer side of the transmission shaft 15, and the lever 18 is sleeved on the transmission shaft 15. A clamping block 19 is provided on the inner wall of the lever 18, and the clamping block 19 is clamped in the spiral guide groove 24. A return spring is provided between the clamping block 19 and the inner wall of the spiral guide groove 24. An external protrusion 23 is provided on the outer side of the slide 9, and two groups of external protrusions 23 are provided. The two groups of external protrusions 23 are respectively located above and below the transmission shaft 15.

[0043] As the device is used, the inner wall of the screening drum 2 will be stained with certain debris and dust. At this time, the electromagnetic ring 22 is energized, and the electromagnetic ring 22 generates magnetic force, which drives the lever 18 to move, and the lever 18 drives the block 19 to move along the spiral guide groove 24. The block 19 drives the lever 18 to rotate under the action of the spiral guide groove 24. When the lever 18 moves to the position of the electromagnetic ring 22, the lever 18 rotates to between the two groups of outer protrusions 23, and the lever 18 does not interfere with the two groups of outer protrusions 23, and the adjustment is stable. The transmission shaft 15 and the driving wheel 11 are then controlled to rotate simultaneously. The driving wheel 11 drives the dust filter cartridge 12 to rotate through the swivel 10, and the dust filter cartridge 12 drives the outer filter plate 13 to rotate. At this time, the transmission shaft 15 drives the shift lever 18 to rotate, and the shift lever 18 drives the slide 9 to slide up and down through two sets of outer protrusions 23. The slide 9 drives the dust filter cartridge 12 to move up and down. The dust filter cartridge 12 drives the outer filter plate 13 to contact with the inner top and inner bottom of the screening cylinder 2, thereby fully cleaning the screening cylinder 2, which is easy to use.

[0044] As shown in FIG5 , in some embodiments, the angle between the two ends of the spiral guide groove 24 is a right angle. Through this design, when the electromagnetic ring 22 is energized to generate magnetic force, the lever 18 can be rotated to a horizontal position and located in the middle of the two sets of outer protrusions 23, so that the switching and replacement is stable.

[0045] As shown in FIG. 4 , in some embodiments, the filtration radius of the dust filter cartridge 12 is smaller than the filtration radius of the outer filter plate 13 , so that the dust filter cartridge 12 can only pass dust with smaller particles.

[0046] As shown in Figure 1, in some embodiments, a feed hopper 3 is provided on the top of the screening cylinder 2, and a discharge hopper 4 is provided at the bottom of the screening cylinder 2. The feed hopper 3 and the discharge hopper 4 are both arranged in the middle position of the screening cylinder 2 to facilitate feeding and unloading. At the same time, since the feed hopper 3 and the discharge hopper 4 are both arranged in the middle position of the screening cylinder 2, the rice raw material can be guided along the dust filter cylinder 12 to the two groups of outer filter plates 13 when loading, ensuring stable filtration.

[0047] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fly ash control device for rice processing, comprising a frame (1), characterized in that: A screening drum (2) is installed inside the frame (1), a transmission shaft (15) capable of automatically rotating is installed inside the screening drum (2), a dust collecting fan (16) is installed on the outer side of the transmission shaft (15), a slide frame (9) is sleeved on the outer side of the transmission shaft (15), a guide frame (8) is arranged inside the frame (1), the slide frame (9) is slidably connected in the guide frame (8), a top spring (17) is arranged between the slide frame (9) and the inner wall of the guide frame (8), an inner convex block (20) is arranged on the inner wall of the slide frame (9), and a lever (18) capable of contacting the inner convex block (20) is arranged on the outer side of the transmission shaft (15); An automatically rotatable dust filter cartridge (12) is installed on the outer side of the slide (9), outer filter plates (13) are arranged on both sides of the dust filter cartridge (12), and the dust filter cartridge (12) is sleeved on the outer side of the transmission shaft (15).

2. A rice processing fly ash control device according to claim 1, characterized in that: A T-shaped ring groove is provided inside the slide (9), a rotating ring (10) is rotatably installed inside the T-shaped ring groove, the dust filter cartridge (12) is fixedly connected to the rotating ring (10), a tooth groove is provided on the inner side of the rotating ring (10), a driving motor is installed on the outer side of the slide (9), a driving wheel (11) is installed at the output end of the driving motor, and the driving wheel (11) is meshed with the tooth groove.

3. A rice processing fly ash control device according to claim 2, characterized in that: A motor cavity (5) is provided at the right end of the frame (1), a dust suction motor (14) is installed inside the motor cavity (5), and the transmission shaft (15) is connected to the output end of the dust suction motor (14).

4. A rice processing fly ash control device according to claim 3, characterized in that: A dust suction chamber (6) is provided at the left end of the frame (1), a telescopic air pipe (7) which can be connected to an external dust removal device is installed at the outlet of the dust suction chamber (6), and the dust suction chamber (6) is connected to the dust suction filter cartridge (12).

5. A rice processing fly ash control device according to claim 4, characterized in that: The motor cavity (5) and the dust suction cavity (6) are separated from the screening cavity inside the screening cylinder (2) by a rubber baffle (26); a fixing ring (25) is arranged inside the rubber baffle (26); the fixing ring (25) is fixedly connected to the dust suction filter cylinder (12); two ends of the dust suction filter cylinder (12) extend into the motor cavity (5) and the dust suction cavity (6) respectively; two groups of guide frames (8) are arranged; the two groups of guide frames (8) are arranged in the motor cavity (5) and the dust suction cavity (6) respectively; and the dust suction fan (16) is located in the dust suction cavity (6).

6. A rice processing fly ash control device according to claim 5, characterized in that: The outer side of the slide (9) is fixedly connected with a bracket (21), and an electromagnetic ring (22) is installed on a side of the bracket (21) close to the lever (18). When the electromagnetic ring (22) is energized to generate magnetic force, it can attract the lever (18). The outer side of the transmission shaft (15) is provided with a spiral guide groove (24), and the lever (18) is sleeved on the transmission shaft (15). The inner wall of the lever (18) is provided with a clamping block (19), and the clamping block (19) is clamped in the spiral guide groove (24). A return spring is provided between the clamping block (19) and the inner wall of the spiral guide groove (24). The outer side of the slide (9) is provided with an external convex block (23), and the external convex block (23) is provided with two groups. The two groups of the external convex blocks (23) are respectively located above and below the transmission shaft (15).

7. A rice processing fly ash control device according to claim 6, characterized in that: The angle between the two ends of the spiral guide groove (24) is a right angle.

8. A rice processing fly ash control device according to any one of claims 1 to 7, characterized in that: The filtering radius of the dust suction filter cartridge (12) is smaller than the filtering radius of the outer filter plate (13).

9. A rice processing fly ash control device according to claim 8, characterized in that: A feed hopper (3) is arranged at the top of the screening cylinder (2), and a discharge hopper (4) is arranged at the bottom of the screening cylinder (2); the feed hopper (3) and the discharge hopper (4) are both arranged at the middle position of the screening cylinder (2).

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