Shell removing and sieving device for rice processing
By introducing a rice vibrating screen and dust removal structure into the rice processing equipment, and utilizing a suction fan and a multi-layer filter system, the problem of dust removal has been solved, thereby improving the quality of rice and the efficiency of cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-04-03
AI Technical Summary
Existing rice processing equipment is unable to effectively remove dust, resulting in a decline in rice quality and increased difficulty in cleaning.
A rice hulling and sieving device was designed, which includes a rice vibrating sieve and a rice dust removal structure. The device uses a suction fan to remove dust, performs multiple sievings using coarse and fine filters, and reduces the environmental and health impact of dust emissions through a spray assembly.
This improves the quality of rice, reduces the difficulty of cleaning, and ensures the cleanliness and safety of the rice.
Smart Images

Figure CN224072658U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rice processing technology, specifically to a hulling and sieving device for rice processing. Background Technology
[0002] The purpose of rice processing is to separate the endosperm from other parts with minimal breakage, thereby producing rice with better edible quality. In the processing, hulling and sieving is an important step, mainly to remove impurities and improve the quality and nutritional value of rice.
[0003] The prior art, disclosed in patent publication number CN219744891U, presents the following technical solution: a rice processing and dehulling device, comprising a processing box; through the setting of a filtering mechanism, a filter screen plate is hammered and squeezed, causing the filter screen plate to move downward, and then the filter screen plate applies pressure to a first spring through a sliding plate. With the rotation of the transmission rod, the transmission plate drives the hammer block to move and detach from the filter screen plate, and the filter screen plate vibrates upward under the elastic force of the first spring, causing the rice and residual husks on the filter screen plate to be shaken up, and the husks are blown away by a fan to avoid clogging the filter screen plate, while the rice falls to the bottom of the processing box through the filter screen plate.
[0004] The above-mentioned technical solution separates rice and rice husks by vibrating the filter screen, but it is difficult to remove dust particles in the rice, which reduces the quality of the rice and increases the difficulty of washing for users, wasting more water to clean it. Summary of the Invention
[0005] The purpose of this invention is to provide a dehulling and sieving device for rice processing, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a hulling and sieving device for rice processing, comprising a support frame, on which a rice vibrating screen device is fixedly installed, and on the left side of the rice vibrating screen device, a rice dust removal structure is fixedly installed.
[0007] The rice dust removal structure includes a dust collection cylinder, a protective net bolted to the air outlet of the dust collection cylinder, a fan-shaped filter fixedly connected to the air inlet of the dust collection cylinder, a suction fan installed inside the dust collection cylinder near the air outlet, a mounting frame fixedly installed inside the dust collection cylinder near the air inlet, a spray assembly fixedly installed between the mounting frame and the suction fan, and water filter holes opened on the bottom side of the dust collection cylinder at the left and right ends of the spray assembly.
[0008] In the above technical solution, the suction fan can suck dust and other particles from the sieved rice into the suction cylinder for processing, thereby improving the quality of the rice.
[0009] As a further preferred embodiment of this technical solution, the rice vibrating screen device includes a housing, with connecting columns fixedly connected to the outer surfaces of both the front and rear ends of the housing. Telescopic rods are provided at both the left and right ends of the bottom side of the connecting columns, and springs are sleeved on the outer sides of the telescopic rods. A base plate is fixedly connected to the bottom side of each spring, and the base plate is located at the front and rear ends of the support.
[0010] As a further preferred embodiment of this technical solution, the upper and lower ends of the inner wall of the outer shell are fixedly connected to the second mounting frame. A coarse filter screen is slidably connected in the upper mounting frame, and a fine filter screen is slidably connected in the lower mounting frame. The coarse filter screen and the fine filter screen are connected to the second mounting frame by bolts.
[0011] In the above technical solution, the coarse filter and the fine filter are slidably installed in the second mounting frame and fixed with bolts, which facilitates the disassembly and replacement of the coarse filter and the fine filter.
[0012] As a further preferred embodiment of this technical solution, an inclined panel is fixedly connected between the bottom side of the outer shell and the fine filter screen, a baffle is bolted to the outlet on the right side of the outer shell, a discharge pipe is provided in the middle of the baffle, a feed hopper is provided above the left end of the outer shell, and a vibration component is installed at the bottom of the outer shell.
[0013] As a further preferred embodiment of this technical solution, the vibration component includes a motor, and an eccentric roller is fixedly connected to the output end of the motor, with the eccentric roller in contact with the bottom of the outer casing.
[0014] In the above technical solution, the motor drives the eccentric roller to rotate, and under the action of the telescopic rod and spring, the coarse filter screen and the fine filter screen vibrate, which can vibrate and sieve the injected rice and rice husks to remove the husks.
[0015] As a further preferred embodiment of this technical solution, a filter plate is provided at one end of the inner side of the mounting frame, and a filter plate is provided at the other end of the inner side of the mounting frame.
[0016] In the above technical solution, the filter plate one and filter plate two can further perform filtration.
[0017] As a further preferred embodiment of this technical solution, the spray assembly includes an annular water tank, with nozzles provided at the water outlets on the inner side of the annular water tank, and a water inlet provided on the top side of the annular water tank.
[0018] The above technical solution can spray the passing gas to reduce dust, thereby reducing the damage to the environment and human health caused by the exhaust gas. The filter holes can discharge wastewater, and the protective net can prevent foreign objects from entering the sieved rice.
[0019] This utility model provides a dehulling and sieving device for rice processing, which has the following beneficial effects:
[0020] (1) By installing a rice dust removal structure, the present invention can use a suction fan to suck dust and other particles from the sieved rice into the suction cylinder for processing, thereby improving the quality of the rice. The fan-shaped filter screen can pre-filter the gas being sucked in, and the first and second filter plates can further filter the gas. In addition, the spray assembly can spray the gas passing through to reduce dust and reduce the damage to the environment and human health caused by the exhaust gas. The filter holes can drain the wastewater, and the protective net prevents foreign objects from entering the sieved rice.
[0021] (2) By installing a rice vibrating screen device, the vibration components of this utility model cause the coarse and fine filter screens to vibrate under the action of the telescopic rod and spring, which can vibrate and remove the husks from the injected rice. Furthermore, by passing the rice through the coarse and fine filter screens twice, not only can the rice husks be separated, but also the impurities mixed in the rice can be removed, further improving the quality of rice processing. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a partial cross-sectional view of the present invention;
[0024] Figure 3 This is an enlarged view of Figure A of this utility model;
[0025] Figure 4 This is a schematic diagram of the rice dust removal structure of this utility model;
[0026] Figure 5 This is an enlarged view of Figure B of this utility model;
[0027] In the diagram: 1. Support frame; 2. Rice vibrating screen device; 3. Rice dust removal structure; 21. Outer shell; 211. Connecting column; 212. Telescopic rod; 213. Spring; 214. Base plate; 22. Feed hopper; 23. Mounting frame two; 24. Coarse filter screen; 25. Fine filter screen; 26. Vibration assembly; 261. Motor; 262. Eccentric roller; 27. Inclined panel; 28. Baffle; 29. Discharge pipe; 31. Dust suction cylinder; 32. Protective net; 33. Fan-shaped filter screen; 34. Mounting frame one; 341. Filter plate one; 342. Filter plate two; 35. Fan; 36. Water filter hole; 37. Spray assembly; 371. Annular water tank; 372. Nozzle; 373. Water inlet. Detailed Implementation
[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0029] This utility model provides a technical solution: such as Figure 1 and Figure 2 As shown in this embodiment, a hulling and sieving device for rice processing includes a support 1, a rice vibrating screen device 2 fixedly installed on the support 1, and a rice dust removal structure 3 fixedly installed on the left side of the rice vibrating screen device 2.
[0030] like Figure 2 and Figure 3 As shown, the rice vibrating sieve device 2 includes a housing 21. Connecting columns 211 are fixedly connected to the outer surfaces of both the front and rear ends of the housing 21. Telescopic rods 212 are provided at both the left and right ends of the bottom side of the connecting columns 211. Springs 213 are sleeved on the outer sides of the telescopic rods 212. Base plates 214 are fixedly connected to the bottom sides of the springs 213. The base plates 214 are located at the front and rear ends of the support 1. Mounting frames 23 are fixedly connected to the upper and lower ends of the inner wall of the housing 21. A coarse filter screen 24 is slidably connected within the upper mounting frame 23, and a fine filter screen 25 is slidably connected within the lower mounting frame 23. The coarse filter screen 24 and the fine filter screen 25 are connected to the mounting frames 23 by bolts. The coarse filter screen 24 and the fine filter screen 25 are slidably positioned within the mounting frames 23 and fixed by bolts, thus facilitating the disassembly and replacement of the coarse filter screen 24 and the fine filter screen 25. An inclined panel 27 is fixedly connected between the bottom side of the outer casing 21 and the fine filter screen 25. A baffle 28 is bolted to the outlet on the right side of the outer casing 21. A discharge pipe 29 is provided in the middle of the baffle 28. A feed hopper 22 is provided above the left end of the outer casing 21. A vibration assembly 26 is installed at the bottom of the outer casing 21. The vibration assembly 26 includes a motor 261. An eccentric roller 262 is fixedly connected to the output end of the motor 261. The eccentric roller 262 contacts the bottom of the outer casing 21. By installing the rice vibrating screen device 2, the vibration assembly 26 causes the coarse filter screen 24 and the fine filter screen 25 to vibrate under the action of the telescopic rod 212 and the spring 213. This can vibrate and sieve the injected rice and rice husks to remove the husks. Furthermore, by passing the rice through the coarse filter screen 24 and the fine filter screen 25 twice, not only can the rice husks be separated, but also impurities mixed in with the rice can be removed, further improving the quality of the rice processing.
[0031] like Figure 4 and Figure 5As shown, the rice dust removal structure 3 includes a dust collection cylinder 31. A protective net 32 is bolted to the air outlet of the dust collection cylinder 31, and a fan-shaped filter 33 is fixedly connected to the air inlet of the dust collection cylinder 31. A suction fan 35 is installed inside the dust collection cylinder 31 near the air outlet. A mounting frame 34 is fixedly installed inside the dust collection cylinder 31 near the air inlet. A spray assembly 37 is fixedly installed between the mounting frame 34 and the suction fan 35. Water filter holes 36 are opened on the bottom side of the dust collection cylinder 31 and at the left and right ends of the spray assembly 37. A filter plate 341 is provided at one end of the inner side of the mounting frame 34, and a filter plate 342 is provided at the other end of the inner side of the mounting frame 34. The spray assembly 37 includes an annular water tank 371. The annular water tank 371 has an outlet... The water end is equipped with nozzles 372, and the top side of the annular water tank 371 is equipped with a water inlet 373. By installing the rice dust removal structure 3, the suction fan 35 can suck the dust and other particles in the sieved rice into the dust collection cylinder 31 for treatment, thereby improving the quality of the rice. The fan-shaped filter screen 33 can pre-filter the sucked gas, and the filter plate 1 341 and filter plate 2 342 can further filter it. In addition, the spray assembly 37 can spray the passing gas to reduce dust and reduce the damage of the exhaust gas to the environment and human health. The filter hole 36 can discharge wastewater, and the protective net 32 can prevent foreign objects from entering the sieved rice.
[0032] This utility model provides a hulling and sieving device for rice processing. The specific working principle is as follows: Rice is injected into the feed hopper 22, and at the same time, the motor 261 is started to drive the eccentric roller 262 to rotate. Under the action of the telescopic rod 212 and the spring 213, the coarse filter screen 24 and the fine filter screen 25 vibrate, so that the rice and rice husks are separated until the sieved rice is collected on the bottom side of the outer shell 21, and can be discharged through the discharge pipe 29. During the falling of the rice, the suction fan 35 is started to suck the dust and other particles in the sieved rice into the dust collection cylinder 31 for processing. The fan-shaped filter screen 33 filters the gas in advance, and the filter plate 1 341 and filter plate 2 342 can further filter. In addition, the spray assembly 37 sprays the gas passing through to reduce dust, and the water filter hole 36 can discharge the wastewater and discharge it from 32.
[0033] 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 dehulling and sieving device for rice processing comprising a support (1), characterized in that: The rice vibrating screen device (2) is fixedly installed on the support (1), and a rice dust removal structure (3) is fixedly installed on the left side of the rice vibrating screen device (2); The rice dust removal structure (3) comprises a dust suction cylinder (31), a protective net (32) is bolted to the air outlet end of the dust suction cylinder (31), a fan-shaped filter screen (33) is fixedly connected to the air inlet end of the dust suction cylinder (31), a suction fan (35) is installed in the dust suction cylinder (31) and close to the air outlet end, an installation frame one (34) is fixedly installed in the dust suction cylinder (31) and close to the air inlet end, a spraying assembly (37) is fixedly installed between the installation frame one (34) and the suction fan (35), and water filtering holes (36) are formed in the bottom side of the dust suction cylinder (31) and located at the left and right ends of the spraying assembly (37).
2. The dehulling and sifting device for rice processing according to claim 1, characterized in that: The rice vibrating screen device (2) comprises an outer shell (21), the outer surfaces of the front and rear ends of the outer shell (21) are fixedly connected with connecting columns (211), the left and right ends of the bottom side of the connecting column (211) are provided with telescopic rods (212), the outer sides of the telescopic rods (212) are all sleeved with springs (213), the bottom sides of the springs (213) are all fixedly connected with bottom plates (214), and the bottom plates (214) are arranged at the front and rear ends of the support (1).
3. The dehulling and sifting device for processing of rice according to claim 2, wherein: The upper and lower ends of the inner wall of the outer shell (21) are fixedly connected with installation frames two (23), a coarse filter screen (24) is slidably connected in the upper installation frame two (23), and a fine filter screen (25) is slidably connected in the lower installation frame two (23).
4. The dehulling and sifting device for rice processing according to claim 2, wherein: The bottom side of the outer shell (21) and the fine filter screen (25) are fixedly connected with an inclined plate (27), the right side outlet of the outer shell (21) is bolted with a baffle (28), the middle part of the baffle (28) is provided with a discharging pipe (29), the left end of the outer shell (21) is provided with a feeding hopper (22), and the bottom of the outer shell (21) is provided with a vibrating assembly (26).
5. The dehulling and sifting device for processing of rice according to claim 4, wherein: The vibrating assembly (26) comprises a motor (261), the output end of the motor (261) is fixedly connected with an eccentric roller (262), and the eccentric roller (262) is in contact with the bottom of the outer shell (21).
6. The dehulling and sifting device for rice processing according to claim 1, characterized in that: One end of the inner side of the installation frame one (34) is provided with a filter plate one (341), and the other end of the inner side of the installation frame one (34) is provided with a filter plate two (342).
7. The dehulling and sifting device for rice processing according to claim 1, characterized in that: The spraying assembly (37) comprises a ring-shaped water tank (371), the inner side of the ring-shaped water tank (371) is provided with a nozzle (372) at the water outlet end, and the top side of the ring-shaped water tank (371) is provided with a water inlet end (373).
Citation Information
Patent Citations
Rice processing shelling device
CN219744891U