Rice bran powder removing device

Abstract

The utility model relates to the field of rice bran powder removing, and discloses a rice bran powder removing device which comprises a conveying cover, the conveying cover is fixed to the outer wall of an air duct, a conveying channel is formed between the outer wall of the air duct and the inner wall of the conveying cover, fixing frames are fixed in the conveying cover, a pressing roller is rotationally arranged between the fixing frames, and the pressing roller is fixed to the conveying cover. A plurality of crushing blocks are fixed to the outer wall of the pressing roller along the axis, and the outer walls of the crushing blocks make contact with the outer wall of the air duct. According to the rice bran crushing device, a worker starts the driving motor, the output end of the driving motor drives the transmission shaft to rotate, at the moment, the pressing roller rotates along with the transmission shaft, the crushing blocks extrude falling rice in the rotating process of the pressing roller, and rice bran powder cakes in the rice are crushed due to extrusion of the crushing blocks and the outer wall of the air duct; and the effect of continuous operation is achieved through rotation of the crushing blocks, and then rice bran powder cakes can be crushed, so that the rice bran powder removing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rice bran removal, in particular to a rice bran removal device. Background Art

[0002] In the rice production process, the rice grains are first husked to remove the outer shell to obtain brown rice. Then they are polished and ground by a rice polishing machine to optimize the appearance and taste of the rice. In this process, the outer layer of the rice, including the pericarp, aleurone layer, etc., is ground off to form bran powder. This bran powder is mixed in the rice and needs to be separated.

[0003] According to the Chinese patent with the announcement number: CN220611322U, a rice bran powder removal device for rice processing includes a wind tube, a conveying cover is arranged on the outer side of the wind tube, a conveying channel is formed between the inner side of the conveying cover and the outer side of the wind tube, and a storage hopper connected with the conveying channel is arranged on the top of the conveying cover; an air outlet is arranged on the side wall of the wind tube, and a slag discharge port is arranged at the position of the conveying cover corresponding to the air outlet; a discharge port is arranged in the flow cavity of the conveying channel below the air outlet, and a mesh screen plate is clamped on the side wall of the conveying cover below the discharge port.

[0004] In the above scheme, after starting the motor, the paddle wheel can be driven to rotate, thereby generating wind in the wind tube. The generated wind can be blown out through the air outlet, and then blow the scattered and raised rice to blow the bran powder away from the rice and discharge it from the slag discharge port, thereby achieving the wind-blown separation of the bran powder in the rice.

[0005] The above scheme still has the following disadvantages: when bran powder is mixed in rice, the bran powder will absorb moisture and form lumps. Therefore, during the process of wind blowing separation, the gravity of the lumped bran powder will be greater than that of the dispersed bran powder, thereby reducing the effect of wind blowing separation. Utility Model Content

[0006] The utility model aims to provide a rice bran powder removal device to solve the problem that when bran powder is mixed in rice, the bran powder absorbs water and forms lumps. Therefore, during the process of wind-blowing separation, the gravity of the agglomerated bran powder is greater than that of the dispersed bran powder, thus reducing the effect of wind-blowing separation.

[0007] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a rice bran powder removing device, including a conveying cover, the conveying cover is fixed on the outer wall of the wind tube, a conveying channel is formed between the outer wall of the wind tube and the inner wall of the conveying cover, a fixing frame is fixed inside the conveying cover, a pressure roller is rotatably arranged between the fixing frames, a plurality of crushing blocks are fixed on the outer wall of the pressure roller along the axis, the outer wall of the crushing block is in contact with the outer wall of the wind tube, a transmission shaft is provided on the internal fixed sleeve of the pressure roller, rotating holes are respectively opened on the left and right sides of the conveying cover, both ends of the transmission shaft pass through the fixing frame and extend to the inside of the rotating hole, a driving motor is fixed on one side of the conveying cover, and the output end of the driving motor is connected to one end of the transmission shaft.

[0008] Preferably, a scraper is fixed to one side of the inner wall of the fixing frame, one side of the outer wall of the scraper contacts the outer wall of the pressure roller, and one side of the outer wall of the scraper is provided with a plurality of scraping openings in parallel, and the scraping openings correspond to the crushing blocks.

[0009] Preferably, a feed bin is fixed to the outer wall of the air duct, one side of the feed bin is connected to one side of the conveying cover, a guide block is fixed inside the feed bin, the top surface of the guide block is an oblique angle, the lowest point of the oblique angle is close to the conveying channel, and the feed bin is connected to the conveying channel.

[0010] Preferably, a slag discharge port is provided on the outer wall of the conveying hood, and the slag discharge port corresponds to the air outlet of the wind tube, and a baffle is fixed above the air outlet of the wind tube.

[0011] Preferably, a guide plate is fixed between the outer wall of the air duct and the inner wall of the conveying cover, and a plurality of diversion ports are arranged in parallel on one side of the guide plate close to the air duct.

[0012] Preferably, a discharge port is provided at one lower end of the conveying cover, a mounting hole is provided on the outer wall of the conveying cover near the discharge port, and a filter screen is fixed inside the mounting hole.

[0013] Compared with the prior art, a rice bran removal device using the above technical solution has the following beneficial effects:

[0014] 1. During use, the staff pours the rice mixed with bran powder into the feed bin, and the rice is directed to the conveying channel through the slope of the guide block. The staff starts the drive motor, and the output end of the drive motor drives the transmission shaft to rotate. At this time, the pressure roller will rotate with the transmission shaft. During the rotation of the pressure roller, the crushing block will squeeze the falling rice, and the bran powder lumps in the rice will be squeezed by the crushing block and the outer wall of the wind tube and broken. The rotation of the crushing block can achieve the effect of continuous operation, and then the bran powder lumps can be broken, thereby improving the efficiency of bran powder removal;

[0015] 2. During use, the scraper and the scraper mouth can be used to scrape off the bran powder stuck on the outer wall of the pressing roller and the crushing block, ensuring the cleanliness of the surface of the pressing roller and the crushing block. At this time, the rice will continue to slide down along the outer wall of the wind tube, and the diversion port can be used to guide the rice, ensuring that there will be several gaps between the rice as it flows down in a waterfall, ensuring that the wind can better penetrate the rice during the blowing process of the wind tube, improving the effect and efficiency of bran powder removal;

[0016] 3. During use, the staff starts the wind tube, and the wind generated by the wind tube can be blown out through the slag discharge port, and then blow the rice that falls in a waterfall shape, so as to blow the bran powder away from the rice and discharge it from the slag discharge port, so as to achieve the wind blowing away of the bran powder in the rice. The guide plate blocks the rice to ensure that the rice will not fall to the air outlet of the wind tube during the falling process, thereby increasing the service life of the wind tube. When the rice falls on the surface of the filter net, the bran and rice residue that have not been blown away in the rice can be screened for the second time through the filter net, and the remaining bran and rice residue will leak out from the sieve holes of the installation hole, thereby further improving the impurity removal and filtration effect of the rice. The rice will then be discharged through the discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a perspective view of an embodiment.

[0018] Figure 2 It is a sectional stereoscopic view of the conveying cover of the embodiment.

[0019] Figure 3 It is an exploded stereogram of the scraper of the embodiment.

[0020] Figure 4 This is a disassembled stereoscopic view of the guide block of the embodiment.

[0021] In the figure: 1. air duct; 2. conveying hood; 3. fixing frame; 4. pressure roller; 5. crushing block; 6. transmission shaft; 7. rotating hole; 8. driving motor; 9. scraper; 10. scraper mouth; 11. feed bin; 12. guide block; 13. slag discharge port; 14. baffle; 15. guide plate; 16. diversion port; 17. installation hole; 18. filter screen; 19. discharge port. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-Figure 4 As shown, a rice bran powder removing device comprises a conveying cover 2, which is fixed on the outer wall of the air cylinder 1, and a conveying channel is formed between the outer wall of the air cylinder 1 and the inner wall of the conveying cover 2. A fixing frame 3 is fixed inside the conveying cover 2, and a pressure roller 4 is rotatably arranged between the fixing frame 3. A plurality of crushing blocks 5 are fixed on the outer wall of the pressure roller 4 along the axis, and the outer wall of the crushing block 5 contacts the outer wall of the air cylinder 1. A transmission shaft 6 is fixedly sleeved inside the pressure roller 4, and rotating holes 7 are respectively opened on the left and right sides of the conveying cover 2. Both ends of the transmission shaft 6 penetrate the fixing frame 3 and extend to the inside of the rotating hole 7. A driving motor 8 is fixed on one side of the conveying cover 2, and the output end of the driving motor 8 is connected to one end of the transmission shaft 6. A feeding bin 11 is fixed on the outer wall of the air cylinder 1, and one side of the feeding bin 11 is connected to one side of the conveying cover 2. A guide block 12 is fixed inside the feeding bin 11, and the top surface of the guide block 12 is an oblique angle, and the lowest point of the oblique angle is close to the conveying channel, and the feeding bin 11 is connected to the conveying channel. A blower is arranged inside the air duct 1, and the air outlet of the air duct 1 is the air outlet of the blower. The starting air duct 1 mentioned in the present application document is the starting blower.

[0024] During use, the staff pours the rice mixed with bran powder into the feed bin 11, and the rice is guided to the conveying channel by the slope of the guide block 12. The staff starts the drive motor 8, and the output end of the drive motor 8 drives the transmission shaft 6 to rotate. At this time, the pressure roller 4 will rotate with the transmission shaft 6. During the rotation of the pressure roller 4, the crushing block 5 will squeeze the falling rice, and the bran powder lumps in the rice will be squeezed by the crushing block 5 and the outer wall of the wind tube 1 and broken. The rotation of the crushing block 5 can achieve the effect of continuous operation, and then the bran powder lumps can be broken, thereby improving the efficiency of bran powder removal.

[0025] like Figure 2 and Figure 3 As shown, a scraper 9 is fixed to one side of the inner wall of the fixed frame 3, and one side of the outer wall of the scraper 9 contacts the outer wall of the pressure roller 4. One side of the outer wall of the scraper 9 is provided with a plurality of scraping openings 10 in parallel, and the scraping openings 10 correspond to the crushing blocks 5.

[0026] During use, the scraper 9 and the scraper opening 10 can scrape off the bran powder stuck to the outer wall of the pressing roller 4 and the crushing block 5, ensuring the cleanliness of the surface of the pressing roller 4 and the crushing block 5. At this time, the rice will continue to slide down along the outer wall of the wind tube 1, and the diversion port 16 can be used to guide the rice, ensuring that there will be several gaps between the rice when it flows downward in a waterfall, ensuring that the wind can better penetrate the rice during the blowing process of the wind tube 1, and improving the effect and efficiency of bran powder removal.

[0027] like Figure 1-Figure 4 As shown, a slag discharge port 13 is provided on the outer wall of the conveying hood 2, and the slag discharge port 13 corresponds to the air outlet of the wind tube 1. A baffle 14 is fixed above the air outlet of the wind tube 1. A discharge port 19 is provided at one end below the conveying hood 2. A mounting hole 17 is provided on the outer wall of the conveying hood 2 near the discharge port 19. A filter screen 18 is fixed inside the mounting hole 17. A guide plate 15 is fixed between the outer wall of the wind tube 1 and the inner wall of the conveying hood 2. A plurality of diversion ports 16 are provided in parallel on one side of the guide plate 15 near the wind tube 1.

[0028] During use, the staff starts the wind tube 1, and the wind generated by the wind tube 1 can be blown out through the slag discharge port 13, and then blow the rice falling in a waterfall shape, so as to blow the bran powder away from the rice and discharge it from the slag discharge port 13, so as to achieve the wind blowing away of the bran powder in the rice. The guide plate 15 blocks the rice, ensuring that the rice will not fall to the air outlet of the wind tube 1 during the falling process, thereby improving the service life of the wind tube 1. When the rice falls on the surface of the filter screen 18, the bran and rice residue that have not been blown away in the rice can be screened for the second time through the filter screen 18, and the remaining bran and rice residue will leak out from the sieve holes of the mounting hole 17, thereby further improving the impurity removal and filtering effect of the rice. The rice will then be discharged through the discharge port 19.

[0029] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A rice bran removal device, comprising a conveying cover (2), wherein the conveying cover (2) is fixed on the outer wall of a wind tube (1), characterized in that: A conveying channel is formed between the outer wall of the air cylinder (1) and the inner wall of the conveying cover (2); a fixing frame (3) is fixed inside the conveying cover (2); a pressure roller (4) is rotatably arranged between the fixing frame (3); a plurality of crushing blocks (5) are fixed to the outer wall of the pressure roller (4) along an axis; the outer wall of the crushing block (5) contacts the outer wall of the air cylinder (1); a transmission shaft (6) is fixed inside the pressure roller (4); rotating holes (7) are respectively provided on the left and right sides of the conveying cover (2); both ends of the transmission shaft (6) pass through the fixing frame (3) and extend to the inside of the rotating hole (7); a driving motor (8) is fixed to one side of the conveying cover (2); the output end of the driving motor (8) is connected to one end of the transmission shaft (6).

2. A rice bran removal device according to claim 1, characterized in that: A scraper (9) is fixed to one side of the inner wall of the fixed frame (3), and one side of the outer wall of the scraper (9) contacts the outer wall of the pressure roller (4). One side of the outer wall of the scraper (9) is provided with a plurality of scraping openings (10) arranged in parallel, and the scraping openings (10) correspond to the crushing blocks (5).

3. A rice bran removal device according to claim 1, characterized in that: A feed bin (11) is fixed on the outer wall of the air cylinder (1), one side of the feed bin (11) is connected to one side of the conveying cover (2), a guide block (12) is fixed inside the feed bin (11), the top surface of the guide block (12) is an oblique angle, the lowest point of the oblique angle is close to the conveying channel, and the feed bin (11) is connected to the conveying channel.

4. A rice bran removal device according to claim 1, characterized in that: The outer wall of the conveying cover (2) is provided with a slag discharge port (13), the slag discharge port (13) corresponds to the air outlet of the wind tube (1), and a baffle (14) is fixed above the air outlet of the wind tube (1).

5. A rice bran removal device according to claim 3, characterized in that: A guide plate (15) is fixed between the outer wall of the wind tube (1) and the inner wall of the conveying cover (2), and a plurality of diversion ports (16) are arranged in parallel on one side of the guide plate (15) close to the wind tube (1).

6. A rice bran removal device according to claim 5, characterized in that: A discharge port (19) is provided at one lower end of the conveying cover (2), a mounting hole (17) is provided on the outer wall of the conveying cover (2) near the discharge port (19), and a filter screen (18) is fixed inside the mounting hole (17).

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