Polished rice polishing and impurity removing device

Abstract

The utility model provides a polished rice polishing and impurity removing device which comprises an impurity removing box, a power assembly is installed on the lower portion of an inner cavity of the impurity removing box, a screening barrel is horizontally installed on the power assembly, the two ends of the screening barrel penetrate through to form an inlet and an outlet, and a rice inlet hopper is arranged on the upper portion of one end of the impurity removing box. A polished rice outlet is formed in the lower portion of the other end of the impurity removing box, a big-end-up rice impurity collecting hopper is arranged at the bottom of the impurity removing box, a dust suction hood is arranged at the top of the impurity removing box, and a dispersing unit is arranged in the impurity removing box. After the scheme is adopted, the structure is reasonable, and screening, dust removal and polishing are integrated.

Description

Technical Field

[0001] The utility model relates to the technical field of rice processing equipment, in particular to a polished rice polishing and impurity removing device. Background Art

[0002] Rice is the finished product made from paddy after processes such as cleaning, hulling, milling, and finished product finishing. In the post-treatment process of rice, after brown rice is milled into rice, there is still a small amount of bran powder on the surface of the rice grains, which affects the appearance quality, storability of rice, and the taste of cooked rice. Polishing is beneficial to thoroughly remove the rice bran on the surface of the rice grains, and can also gelatinize the starch on the surface of the rice grains, improving the smoothness of the rice, which not only improves the appearance effect of the rice, but also is conducive to storage. A rice polishing device of CN215140186U can remove the grain husks and bran powder on the surface carried by the rice through a sieve mesh and sieve holes, and add an appropriate amount of water during the polishing process, so that the binding force between the endosperm and the small amount of rice bran remaining on the rice is weakened. This method requires polishing with water, which is not conducive to the subsequent storage of rice. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a polished rice polishing and impurity removing device, which integrates screening, dust removal, and polishing. It does not need to add water during polishing and is easier to store after polishing.

[0004] To achieve the above purpose, the technical solution provided by the utility model is: a polished rice polishing and impurity removing device, which includes an impurity removing box. Among them, a power component is installed at the lower part of the inner cavity of the impurity removing box, a screening cylinder is horizontally installed on the power component, the two ends of the screening cylinder penetrate to form an inlet and an outlet, a rice inlet hopper is arranged at the upper part of one end of the impurity removing box, the outlet of the rice inlet hopper passes through the inlet and outlet and extends into the screening cylinder, a polished rice outlet is arranged at the lower part of the other end of the impurity removing box, a rice impurity collection hopper with a large upper part and a small lower part is arranged at the bottom of the impurity removing box, a dust suction hood is arranged at the top of the impurity removing box, and a dispersion unit is arranged in the impurity removing box.

[0005] The dispersion unit includes a support beam and a rice guiding plate. Among them, the support beam is located at the center of the screening cylinder, the end of the support beam passes through the inlet and outlet and is fixedly connected to the inner cavity wall of the impurity removing box, a vertical plate is vertically fixed on the top of the support beam, one inclined fixing plate is respectively fixed at both ends of the vertical plate, and a plurality of rice guiding plates are evenly distributed between the two fixing plates, and a rice dividing channel is reserved between adjacent rice guiding plates.

[0006] The wall of the screening cylinder is provided with screening holes penetrating inside and outside, and a plurality of rice throwing plates are arranged on the inner cavity wall of the screening cylinder.

[0007] The rice guiding plate is inclined and fixed between the two positioning plates, the inclination direction of the rice guiding plate is the same as that of the positioning plate, and the inclination angle of the rice guiding plate is greater than that of the positioning plate.

[0008] The described power assembly includes a supporting track, supporting wheels, and a transmission shaft. Among them, there are two supporting tracks, which are respectively fixed on both sides of the lower part of the inner cavity of the impurity removal box. A transmission shaft is installed on each supporting track through a bearing seat. One end of the transmission shaft is connected to a transmission motor. The two transmission shafts are respectively located on both sides of the lower part of the screening cylinder. Supporting wheels are installed on the transmission shafts, and the screening cylinder is supported by the supporting wheels. After installation, the screening cylinder is inclined at 15 - 25° in the horizontal direction, and the polished rice outlet is located below the lower end of the screening cylinder.

[0009] The number of supporting wheels on each transmission shaft is greater than 2. A limiting groove is formed by concave - inward on the surface of the supporting wheel, and a limiting ring is provided on the outer ring surface of the screening cylinder. The limiting groove and the limiting ring are fitted together.

[0010] The surface of the limiting ring is provided with driven teeth, and driving teeth are provided in the limiting groove. The driving teeth and the driven teeth are meshed with each other.

[0011] After the present utility model adopts the above - mentioned scheme, rice enters the hopper and then falls into the screening cylinder. The transmission motor drives the transmission shaft to rotate, and the transmission shaft drives the screening cylinder to rotate through corresponding components. When the screening cylinder rotates, the rice forms a primary throwing effect through the rice - throwing plate and a secondary throwing effect through the rice - guiding plate. During the throwing process, the rice dust adhering to the rice is shaken off, and at the same time, through multiple throws and frictions, the surface of the rice is polished; the structure after adopting this scheme is reasonable, integrating screening, dust removal, and polishing. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0013] Figure 2 It is a sectional view of the present utility model. Detailed Embodiment

[0014] The following further describes the present utility model in conjunction with all the drawings. The preferred embodiment of the present utility model is as follows. Refer to the attached Figure 1 and the attached Figure 2, a rice polishing and impurity removing device according to this embodiment, which includes an impurity removing box 1. Among them, a power assembly is installed at the lower part of the inner cavity of the impurity removing box 1, and a screening cylinder 2 is horizontally installed on the power assembly. Entrance and exit openings 3 are formed through both ends of the screening cylinder 2. At the upper part of one end of the impurity removing box 1, there is a rice inlet hopper 4. The outlet of the rice inlet hopper 4 passes through the entrance and exit opening 3 and extends into the screening cylinder 2. Screening holes penetrating both inside and outside are provided on the wall of the screening cylinder 2, and several rice throwing plates 17 are provided on the inner cavity wall of the screening cylinder 2. At the lower part of the other end of the impurity removing box 1, there is a polished rice outlet 6. At the bottom of the impurity removing box 1, there is a rice impurity collecting hopper 5 with a large upper part and a small lower part. A dust suction hood 7 is provided at the top of the impurity removing box 1, and a dispersion unit is provided inside the impurity removing box 1. The dispersion unit includes a support beam 13 and a rice guiding plate 16. Among them, the support beam 13 is located at the center of the screening cylinder 2. The end of the support beam 13 passes through the entrance and exit opening 3 and is fixedly connected to the inner cavity wall of the impurity removing box 1. A vertical plate 14 is fixedly installed at the top of the support beam 13. At each end of the vertical plate 14, a positioning plate 15 is obliquely fixed. A number of rice guiding plates 16 are evenly distributed between the two positioning plates 15, and a rice dividing channel is reserved between adjacent rice guiding plates 16. The rice guiding plate 16 is obliquely fixed between the two positioning plates 15. The inclination direction of the rice guiding plate 16 is the same as that of the positioning plate 15, and the inclination angle of the rice guiding plate 16 is greater than that of the positioning plate 15.

[0015] The power assembly includes a supporting track 8, a supporting wheel 9, and a transmission shaft 10. Among them, there are two supporting tracks 8, which are respectively fixed on both sides of the lower part of the inner cavity of the impurity removing box 1. A transmission shaft 10 is installed on each supporting track 8 through a bearing seat. One end of the transmission shaft 10 is connected to a transmission motor. The two transmission shafts 10 are respectively located on both sides of the lower part of the screening cylinder 2. Supporting wheels 9 are installed on the transmission shafts 10. The screening cylinder 2 is supported by the supporting wheels 9. After installation, the screening cylinder 2 is inclined at 15 - 25° in the horizontal direction. The polished rice outlet 6 is located below the lower end of the screening cylinder 2. The number of supporting wheels 9 on each transmission shaft 10 is greater than 2. A limiting groove 11 is formed by concave inward on the surface of the supporting wheel 9. A limiting ring 12 is provided on the outer ring surface of the screening cylinder 2. The limiting groove 11 is engaged with the limiting ring 12. Driving teeth are provided on the surface of the limiting ring 12, and driving teeth are provided in the limiting groove 11. The driving teeth are engaged with the driven teeth.

[0016] After adopting the above solution, an exhaust fan is installed on the dust suction hood, a miscellaneous rice discharge pipe is provided at the bottom of the miscellaneous rice collection hopper, rice enters from the rice inlet hopper and falls into the screening cylinder. The drive motor drives the drive shaft to rotate, the drive shaft drives the supporting wheel to rotate, the supporting wheel synchronously drives the limiting ring to move, and the limiting ring drives the screening cylinder to rotate. When the screening cylinder rotates, the rice is driven by the rice throwing plate to form a primary throwing effect. During the throwing process, a part of the rice will fall onto the dispersion unit and form a secondary throwing through the rice guiding plate. During the throwing process, the rice dust adhering to the rice is shaken off. At the same time, through multiple throws and frictions, the surface of the rice is polished. The rice dust generated during polishing is absorbed by the dust suction hood. During the screening process, the broken rice is screened through the screening holes and falls into the miscellaneous rice collection hopper and is discharged through the miscellaneous rice discharge pipe. The polished refined rice walks towards the refined rice outlet under the inclination of the screening cylinder and finally falls into the refined rice outlet and is led out by the guide plate at the refined rice outlet. The structure after adopting this solution is reasonable, integrating screening, dust removal, and polishing. Water is not required during polishing, and it is easier to store after polishing.

[0017] The above-described embodiments are only the preferred embodiments of the present invention, and do not limit the scope of implementation of the present invention. Therefore, all changes made according to the shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A polished rice cleaning and impurity removing device, which comprises an impurity removing box (1), and is characterized in that: At the lower part of the inner cavity of the impurity removal box (1), a power assembly is installed. Horizontally installed on the power assembly is a screening cylinder (2). Both ends of the screening cylinder (2) penetrate to form an inlet and outlet (3). At the upper part of one end of the impurity removal box (1), there is a rice inlet hopper (4). The outlet of the rice inlet hopper (4) passes through the inlet and outlet (3) and extends into the screening cylinder (2). At the lower part of the other end of the impurity removal box (1), there is a polished rice outlet (6). At the bottom of the impurity removal box (1), there is a rice and impurity collection hopper (5) with a large upper part and a small lower part. At the top of the impurity removal box (1), there is a dust suction hood (7). A dispersion unit is provided inside the impurity removal box (1).

2. The polished rice polishing and impurity removing device according to claim 1, wherein: The dispersion unit includes a support beam (13) and a rice guiding plate (16). Among them, the support beam (13) is located at the center of the screening cylinder (2). The end of the support beam (13) passes through the inlet and outlet (3) and is fixedly connected to the inner cavity wall of the impurity removal box (1). Vertically fixed on the top of the support beam (13) is a vertical plate (14). At each end of the vertical plate (14), an inclined positioning plate (15) is fixedly installed. Between the two positioning plates (15), a number of rice guiding plates (16) are evenly distributed. A rice separation channel is reserved between adjacent rice guiding plates (16).

3. A polished rice polishing and impurity removing device according to claim 1, characterized in that: On the wall of the screening cylinder (2), there are screening holes penetrating inside and outside. On the inner cavity wall of the screening cylinder (2), there are a number of rice throwing plates (17).

4. The polished rice polishing and impurity removing device according to claim 2, wherein: The rice guiding plate (16) is inclined and fixed between the two positioning plates (15). The inclination direction of the rice guiding plate (16) is the same as that of the positioning plate (15), and the inclination angle of the rice guiding plate (16) is greater than that of the positioning plate (15).

5. A polished rice polishing and impurity removing device according to claim 1, characterized in that: The power assembly includes a supporting track (8), a supporting wheel (9), and a transmission shaft (10). Among them, there are two supporting tracks (8), which are respectively fixed on both sides of the lower part of the inner cavity of the impurity removal box (1). On each supporting track (8), a transmission shaft (10) is installed through a bearing seat. One end of the transmission shaft (10) is connected to a transmission motor. The two transmission shafts (10) are respectively located on both sides of the lower part of the screening cylinder (2). Supporting wheels (9) are installed on the transmission shafts (10). The screening cylinder (2) is supported by the supporting wheels (9). After installation, the screening cylinder (2) is inclined at 15 - 25° in the horizontal direction. The polished rice outlet (6) is located below the lower end of the screening cylinder (2).

6. The rice polishing and impurity removing device according to claim 5, wherein: The number of supporting wheels (9) on each transmission shaft (10) is greater than 2. On the wheel surface of the supporting wheel (9), there is a limiting groove (11) formed by concave inward. On the outer ring surface of the screening cylinder (2), there is a limiting ring (12). The limiting groove (11) is engaged with the limiting ring (12).

7. A polished rice polishing and impurity removing device according to claim 6, characterized in that: On the surface of the limiting ring (12), there are driven teeth. Inside the limiting groove (11), there are driving teeth. The driving teeth are engaged with the driven teeth.

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