A bran powder screening and grading device

Abstract

This utility model discloses a bran powder screening and grading device, belonging to the field of bran powder processing technology. It includes a processing box with a grading and screening mechanism inside and a storage mechanism outside. The beneficial effect of this utility model is that by incorporating the grading and screening mechanism, when the motor is turned on, the rotating shaft drives the base plate to rotate, which in turn drives the connecting rod to rotate the base, connecting pipe, and rotating screen. Multiple sets of the base, connecting pipe, and rotating screen are provided, thus achieving the effect of grading and screening. The stirring blades on the rotating screen help to evenly distribute the bran powder and accelerate its movement within the rotating screen. The fine mesh at the top initially screens out finer bran powder, while the coarse mesh at the bottom further screens out residues from the rice, thereby achieving grading. The screening is very precise, facilitating accurate grading of various components.

Description

Technical Field

[0001] This utility model relates to the field of bran powder processing technology, specifically to a bran powder screening and grading device. Background Technology

[0002] Rice processing includes processes such as bran removal, milling, color sorting, and polishing. The white rice grading screen is a device used to separate broken rice of different sizes from whole rice grains produced during paddy processing. Grading is a post-processing step in rice preparation and is widely used in the grain processing field.

[0003] The process of separating bulk materials into different particle sizes by passing them through one or more screens is called screening. A screening machine is a vibrating screening device that uses the relative motion between the bulk material and the screen surface to allow some particles to pass through the screen openings, separating materials such as sand, gravel, and crushed stone into different grades according to particle size. The screening process is generally continuous. After the raw material is fed onto the screening machine (referred to as the screen), materials smaller than the screen opening size pass through the screen openings and are called undersize products; materials larger than the screen opening size are continuously discharged from the screen surface and are called oversize products.

[0004] Traditional bran screening equipment generally suffers from low efficiency and low screening accuracy, which prevents bran from achieving the ideal particle size distribution during processing, affecting its effectiveness in food processing, feed production, and daily chemical products. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a bran powder screening and grading device with a grading and screening mechanism. This device solves the problems of low efficiency and low screening accuracy commonly found in traditional bran powder screening equipment, which prevents bran powder from achieving an ideal particle size distribution during processing, thus affecting its effectiveness in food processing, feed production, and daily chemical products.

[0006] The technical solution of this utility model is: a bran powder screening and grading device, including a processing box, wherein a grading and screening mechanism is provided inside the processing box, and a storage mechanism is provided outside the processing box;

[0007] The grading and screening mechanism includes a rotating screen, stirring blades, connecting pipes, a base, a bottom plate, a motor, a rotating shaft, connecting rods, and scrapers. The motor is fixedly installed at the bottom of the processing box, and the output end of the motor is fixedly connected to the rotating shaft. The bottom plate is fixedly installed at the top of the rotating shaft, and the scraper is fixedly installed on the outer wall of the bottom plate. The bottom connecting rod is used to connect the bottom plate and the bottom base, and the top connecting rod is used to connect the bottom stirring blades and the top base. The connecting pipe is used to connect the base and the rotating screen. The stirring blades are fixedly installed on the inner wall of the rotating screen. The rotating screen is provided in two sets, with the top one being a fine screen and the bottom one being a coarse screen. A conical seat is provided on the top of the bottom plate.

[0008] Furthermore, a support leg is fixedly installed at the bottom of the processing box, and a foot pad is provided at the bottom end of the support leg.

[0009] Furthermore, a feed hopper is provided on the top of the processing box, and a discharge pipe is fixedly installed on the bottom of the processing box.

[0010] Furthermore, a baffle is fixedly installed on the inner wall of the processing box, and a slag discharge trough is provided inside the side wall of the processing box and located on one side of the baffle. The baffle is in contact with the outer wall of the bottom base.

[0011] Furthermore, a mounting frame is fixedly installed on the inner wall of the top stirring blade, and a stirring blade is provided at the bottom of the mounting frame.

[0012] Furthermore, the storage mechanism includes a mounting frame, filter cotton, cover plate, exhaust fan, filter screen, and protective cotton. The mounting frame is fixedly fitted onto the outside of the processing box, and a filter screen is provided between the mounting frame and the processing box for separation and communication. The cover plate is located on the top of the mounting frame, the filter cotton is fixedly installed at the bottom of the cover plate and located inside the mounting frame, and the protective cotton is fixedly installed on the output end face of the exhaust fan.

[0013] This utility model provides an improved bran powder screening and grading device, which has the following improvements and advantages compared with the prior art:

[0014] The system features a grading and screening mechanism. When the motor is turned on, the rotating shaft drives the base plate to rotate, which in turn causes the connecting rod to rotate the base, connecting pipe, and rotating screen. Multiple sets of the base, connecting pipe, and rotating screen are installed to achieve grading and screening. The stirring blades on the rotating screen help distribute the bran powder evenly and accelerate its movement within the screen. The fine mesh at the top initially filters out finer bran powder, while the coarse mesh at the bottom further filters out residue from the rice, thus achieving grading. The screening is highly precise, facilitating accurate separation of various components. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a cross-sectional view of the present invention;

[0018] Figure 2 This is a front view schematic diagram of the present invention;

[0019] Figure 3This is a schematic diagram of the storage mechanism of this utility model;

[0020] Figure 4 This is a top view of the mounting bracket of this utility model;

[0021] Reference numerals: 1. Processing box; 2. Support leg; 3. Foot pad; 4. Discharge pipe; 5. Feed hopper; 6. Rotating screen; 7. Agitator blade; 8. Mounting frame; 9. Cover plate; 10. Exhaust fan; 11. Protective cotton; 12. Filter cotton; 13. Base; 14. Slag discharge trough; 15. Motor; 16. Rotating shaft; 17. Conical seat; 18. Base plate; 19. Connecting rod; 20. Baffle; 21. Connecting pipe; 22. Agitator blade; 23. Mounting frame. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] This utility model provides an improved bran powder screening and grading device, such as... Figure 1-4 As shown in the figure, the processing box 1 is equipped with a grading and screening mechanism inside the processing box 1 and a storage mechanism outside the processing box 1.

[0025] The grading and screening mechanism includes a rotating screen 6, stirring blades 7, connecting pipe 21, base 13, base plate 18, motor 15, rotating shaft 16, connecting rod 19, and scraper. Motor 15 is fixedly installed at the bottom of the processing box 1, and its output end is fixedly connected to the rotating shaft 16. Base plate 18 is fixedly installed at the top of rotating shaft 16. Scraper is fixedly installed on the outer wall of base plate 18. Bottom connecting rod 19 connects base plate 18 and bottom base 13, and top connecting rod 19 connects bottom stirring blades 7 and top base 13. Connecting pipe 21 connects base 13 and rotating screen 6. Stirring blades 7 are fixedly installed on the inner wall of rotating screen 6. Two sets of rotating screen 6 are provided, with the top being a fine mesh and the bottom... The bottom plate 18 has a coarse mesh and a conical seat 17 on its top. A grading and screening mechanism is provided. When in use, turning on the motor 15 causes the rotating shaft 16 to rotate the bottom plate 18, which in turn causes the connecting rod 19 to rotate the base 13, connecting pipe 21, and rotating mesh 6. Multiple sets of the base 13, connecting pipe 21, and rotating mesh 6 are provided, achieving a grading and screening effect. The stirring blades 7 on the rotating mesh 6 help to evenly distribute the bran powder and accelerate its movement within the rotating mesh 6. The fine mesh at the top initially screens out finer bran powder, while the coarse mesh at the bottom further screens out residue from the rice, thus achieving grading. The screening is very precise, facilitating accurate sieving of each component.

[0026] A support leg 2 is fixedly installed at the bottom of the processing box 1, and a foot pad 3 is provided at the bottom end of the support leg 2. A feed hopper 5 is provided at the top of the processing box 1, and a discharge pipe 4 is fixedly installed at the bottom of the processing box 1. Rice is fed into the processing box 1 through the feed hopper 5 and discharged through the discharge pipe 4. A baffle 20 is fixedly installed on the inner wall of the processing box 1, and a slag discharge trough 14 is provided inside the side wall of the processing box 1, located on one side of the baffle 20. The baffle 20 helps to improve the relative movement speed between the rice and the bottom rotating mesh 6, and can also separate and discharge the rice slag after screening. The rice residue can be discharged through the slag discharge trough 14. The baffle 20 is in contact with the outer wall of the bottom base 13. The inner wall of the top stirring blade 7 is fixedly installed with a mounting frame 8. The bottom of the mounting frame 8 is provided with stirring blades 22. The mounting frame 8 and stirring blades 22 are conducive to the splashing and floating of bran powder, which facilitates the collection of bran powder by the negative pressure environment formed by the exhaust fan 10, and avoids the accumulation of bran powder in the gaps of rice, which can cause blockage. The device is connected to an external power supply to provide power to the device. The device is connected to an external controller, which is electrically connected to the motor 15 and the exhaust fan 10.

[0027] The storage mechanism includes a mounting frame 23, filter cotton 12, cover plate 9, exhaust fan 10, filter screen, and protective cotton 11. The mounting frame 23 is fixedly fitted onto the outside of the processing box 1, and a filter screen is provided between the mounting frame 23 and the processing box 1 for separation and communication. The cover plate 9 is located on the top of the mounting frame 23. The filter cotton 12 is fixedly installed at the bottom of the cover plate 9 and located inside the mounting frame 23. The protective cotton 11 is fixedly installed on the output end face of the exhaust fan 10. After being filtered by the filter screen, the bran powder enters the mounting frame 23 and is then filtered by the filter cotton 12 and collected inside the mounting frame 23.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bran powder screening and grading device, comprising a processing box (1), characterized in that: The processing box (1) is equipped with a grading and screening mechanism inside, and a storage mechanism is equipped on the outside of the processing box (1); The grading and screening mechanism includes a rotating screen (6), stirring blades (7), connecting pipes (21), a base (13), a base plate (18), a motor (15), a rotating shaft (16), a connecting rod (19), and a scraper. The motor (15) is fixedly installed at the bottom of the processing box (1), and the output end of the motor (15) is fixedly connected to the rotating shaft (16). The base plate (18) is fixedly installed at the top of the rotating shaft (16), and the scraper is fixedly installed on the outer wall of the base plate (18). The connecting rod (19) is used for the connection between the base plate (18) and the bottom side base (13). The top connecting rod (19) is used for the connection between the bottom stirring blade (7) and the top base (13). The connecting pipe (21) is used for the connection between the base (13) and the rotating mesh (6). The stirring blade (7) is fixedly installed on the inner wall of the rotating mesh (6). The rotating mesh (6) is provided in two sets, with the top being a fine mesh and the bottom being a coarse mesh. The top of the base plate (18) is provided with a conical seat (17).

2. The bran powder screening and grading device according to claim 1, characterized in that: The bottom of the processing box (1) is fixedly installed with a support leg (2), and the bottom end of the support leg (2) is provided with a foot pad (3).

3. The bran powder screening and grading device according to claim 1, characterized in that: The top of the processing box (1) is provided with a feeding hopper (5), and the bottom of the processing box (1) is fixedly installed with a discharge pipe (4).

4. The bran powder screening and grading device according to claim 1, characterized in that: The inner wall of the processing box (1) is fixedly installed with a baffle (20), and the side wall of the processing box (1) is provided with a slag discharge trough (14) located on one side of the baffle (20). The baffle (20) is in contact with the outer wall of the bottom base (13).

5. The bran powder screening and grading device according to claim 1, characterized in that: A mounting frame (8) is fixedly installed on the inner wall of the top stirring blade (7), and an agitating blade (22) is provided at the bottom of the mounting frame (8).

6. The bran powder screening and grading device according to claim 1, characterized in that: The storage mechanism includes a mounting frame (23), filter cotton (12), cover plate (9), exhaust fan (10), filter screen and protective cotton (11). The mounting frame (23) is fixedly sleeved on the outside of the processing box (1), and a filter screen is provided between the mounting frame (23) and the processing box (1). The cover plate (9) is set on the top of the mounting frame (23). The filter cotton (12) is fixedly installed at the bottom of the cover plate (9) and located inside the mounting frame (23). The protective cotton (11) is fixedly installed on the output end face of the exhaust fan (10).

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