Impurity removing machine for rice processing

By designing a rice processing impurity remover and utilizing a combination of vibration, airflow, and magnetic plates, efficient separation of rice and impurities is achieved, solving the problem of multiple separations in the existing technology, simplifying the production process, and improving production efficiency and product quality.

CN223430587UActive Publication Date: 2025-10-14QIANGUO JIANGXIN RICE IND CO LTD
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Patent Information

Application Number
CN202422771489.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-10-14
Estimated Expiration
2034-11-14

AI Technical Summary

Technical Problem

Existing single equipment is difficult to adapt to the separation needs of multiple impurities, resulting in multiple separations during rice processing, which increases the complexity and cost of the process and is not conducive to efficient production.

Method used

A rice processing impurity remover was designed, which included a vibrating mixing chamber, an airflow suspension chamber, a conveyor belt, and an impurity removal mechanism. The machine separated rice from impurities through a combination of vibration, airflow, and magnetic plates, and separated and collected light, heavy, and magnetic impurities.

Benefits of technology

The production process is simplified, efficient impurity removal of rice is achieved, different types of impurities are removed, multiple separation steps are avoided, and production efficiency and product quality are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of rice impurity removal, and discloses an impurity removal machine for rice processing, which solves the problems in the background technology, and comprises a feed port, the bottom of the feed port is connected with a vibration mixing bin, a vibration motor is arranged in the vibration mixing bin, the output end of the vibration motor is provided with a vibration plate, and the vibration plate is connected with the feed port. A blower is arranged on the vibration mixing bin, the vibration mixing bin is connected with an airflow suspension bin, an axial flow fan is arranged in the airflow suspension bin, collecting boxes are arranged in the airflow suspension bin and arranged on the two sides of the axial flow fan, and an air outlet of the blower penetrates through the vibration mixing bin to be connected with the airflow suspension bin. A vortex fan is arranged on the top wall of the airflow suspension bin, a dust collection box is arranged on the airflow suspension bin, and the rice impurity removal device has the advantages that different impurities in rice can be removed, multiple separation steps are omitted, and production procedures are simplified.
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Description

Technical Field

[0001] The utility model belongs to the technical field of rice impurity removal, in particular to an impurity remover for rice processing. Background Art

[0002] In modern rice processing, removing impurities is a crucial step in ensuring rice quality and safety. From harvesting in the fields to processing into finished products, rice is often contaminated with impurities such as light impurities (rice husks, dust, etc.), heavy impurities (gravel, stones, etc.), and magnetic impurities (iron filings, metal fragments, etc.). These impurities not only affect the appearance and taste of rice but may also have adverse effects on human health.

[0003] Due to the complex composition and different characteristics of impurities, the existing single equipment is difficult to adapt to the separation needs of multiple impurities. Different impurities often require multiple separations to be removed, which greatly increases the complexity and cost of the process and is not conducive to efficient production. For this reason, we proposed a rice processing impurity remover. Utility Model Content

[0004] In order to solve the problem that the existing single equipment is difficult to adapt to the separation needs of multiple impurities due to the complex composition and different characteristics of impurities, and different impurities often need to be separated multiple times before they can be removed, which greatly increases the complexity and cost of the process and is not conducive to efficient production, the utility model provides the following technical solutions: a rice processing impurity remover, comprising a feed inlet, the bottom of which is connected to a vibrating mixing bin,

[0005] The vibration mixing chamber is provided with a vibration motor, the output end of the vibration motor is provided with a vibration plate, the vibration mixing chamber is provided with a blower, and the vibration mixing chamber is connected to an air flow suspension chamber.

[0006] An axial flow fan is provided in the air flow suspension bin, a collection box is provided in the air flow suspension bin, the collection boxes are provided on both sides of the axial flow fan, the air outlet of the hair dryer passes through the vibration mixing bin and is connected to the air flow suspension bin, a vortex fan is provided on the top wall of the air flow suspension bin, a dust collection box is provided on the air flow suspension bin, the dust collection box is connected to the vortex fan through a connecting channel, a filter is provided in the dust collection box, a ventilation hole is provided on the side wall of the air flow suspension bin, and a debris removal mechanism is connected to the other end of the air flow suspension bin.

[0007] The impurity removal mechanism includes a conveyor belt, a magnetic plate is provided on the surface of the conveyor belt, a waste box is provided below the conveyor belt, a scraper is provided on the waste box, and the scraper is in contact with the magnetic plate.

[0008] Preferably, the vibration plate has an inclination angle, and the vibration plate gradually descends from the feed inlet to the air flow suspension bin, and the inclination angle is 5°-15°, so that the rice gradually slides toward the air flow suspension bin when vibrated.

[0009] Preferably, the axial flow fan is provided with an isolation mesh plate, and the isolation mesh plate is provided with a plurality of ventilation holes, and the aperture of the ventilation holes is 2 mm, which prevents impurities from falling directly into the axial flow fan and allows air flow to pass through.

[0010] Preferably, the wind speed of the axial flow fan is 4-6 m / s, and lighter impurities such as rice husks will float up, while heavier rice will be suspended and maintain stratification.

[0011] Preferably, the blower has a wind speed of 1-3 m / s, and blows the stratified rice toward the conveyor belt with an appropriate horizontal airflow to ensure that the wind force is not strong enough to disturb the light impurities in the upper layer.

[0012] Preferably, the width of the magnetic plate is the same as the width of the conveyor belt, ensuring that the area through which the rice passes can be covered by the magnetic force.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] During operation, rice and impurities enter the vibrating mixing bin through the feed port. Driven by the vibrating motor, the vibrating plate evenly disperses the rice and impurities, and helps the rice gradually slide into the airflow suspension bin through the inclination angle. The rice enters the airflow suspension bin and is suspended by the airflow generated by the axial flow fan. The rice remains suspended under appropriate airflow, while lighter impurities such as rice husks and dust float up, and heavier impurities such as stones sink. The heavier impurities cannot be supported by the suspended airflow and will sink into the collection box. The light impurities are sucked in by the vortex fan and guided into the dust collection box through the connecting channel. The filter prevents the impurities from flowing back. After the separation is completed, the hair dryer blows the rice toward the conveyor belt at low speed. The magnetic plate on the conveyor belt absorbs metal impurities to prevent metal impurities from entering the finished rice product. The scraper contacts the surface of the magnetic plate and automatically scrapes the adsorbed magnetic impurities into the waste box. After various levels of impurity removal treatment, the clean rice is sent to the next processing flow or directly packaged on the conveyor belt. It can remove different impurities in the rice, eliminate multiple separation steps, and simplify the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2This is a schematic diagram of a partial cross-sectional structure of the utility model;

[0018] In the figure: 1. Feed inlet; 2. Vibration mixing chamber; 3. Vibration motor; 4. Vibration plate; 5. Air flow suspension chamber; 6. Blower; 7. Axial fan; 8. Collection box; 9. Isolation mesh plate; 10. Vortex fan; 11. Dust collection box; 12. Connecting channel; 13. Ventilation hole; 14. Conveyor belt; 15. Waste box; 16. Scraper. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Depend on Figure 1-2 The utility model includes a feed port 1, the bottom of which is connected to a vibration mixing bin 2.

[0021] A vibration motor 3 is provided in the vibration mixing chamber 2, a vibration plate 4 is provided at the output end of the vibration motor 3, a blower 6 is provided on the vibration mixing chamber 2, and the vibration mixing chamber 2 is connected to an air flow suspension chamber 5.

[0022] An axial flow fan 7 is provided in the air flow suspension bin 5, a collection box 8 is provided in the air flow suspension bin 5, and the collection box 8 is provided on both sides of the axial flow fan 7. The air outlet of the hair dryer 6 passes through the vibration mixing bin 5 and is connected to the air flow suspension bin 5. A vortex fan 10 is provided on the top wall of the air flow suspension bin 5. A dust collection box 11 is provided on the air flow suspension bin 5. The dust collection box 11 is connected to the vortex fan 10 through a connecting channel 12. A filter is provided in the dust collection box 11. Ventilation holes 13 are provided on the side walls of the air flow suspension bin 5. The other end of the air flow suspension bin 5 is connected to a debris removal mechanism.

[0023] The impurity removal mechanism includes a conveyor belt 14, a magnetic plate is provided on the surface of the conveyor belt 14, a waste box 15 is provided below the conveyor belt 14, and a scraper 16 is provided on the waste box 15, and the scraper 16 is in contact with the magnetic plate.

[0024] The vibration plate 4 has an inclination angle, and the vibration plate 4 gradually descends from the feed inlet 1 to the air flow suspension bin 5, with an inclination angle of 5°-15°, so that the rice gradually slides toward the air flow suspension bin 5 when vibrated.

[0025] An isolation mesh plate 9 is provided on the axial flow fan 7. The isolation mesh plate 9 is provided with a plurality of ventilation holes. The aperture of the ventilation holes is 2 mm, which prevents impurities from falling directly into the axial flow fan 7 and allows air flow to pass through.

[0026] The wind speed of the axial flow fan 7 is 4-6 m / s. Lighter impurities such as rice husks will float up, while heavier rice will be suspended and maintain stratification.

[0027] The blower 6 has a wind speed of 1-3 m / s and blows the stratified rice toward the conveyor belt with an appropriate horizontal airflow, ensuring that the wind force is not strong enough to disturb the light impurities in the upper layer.

[0028] The width of the magnetic plate is the same as that of the conveyor belt 14, ensuring that the area through which the rice passes can be covered by the magnetic force.

[0029] Working principle: During operation, rice and impurities enter the vibrating mixing chamber 2 through the feed port 1. Driven by the vibrating motor 3, the vibrating plate 4 evenly disperses the rice and impurities, and helps the rice gradually slide towards the airflow suspension chamber 5 through the tilt angle. The rice enters the airflow suspension chamber 5 and is suspended by the airflow generated by the axial flow fan 7. The rice remains suspended under appropriate airflow, while lighter impurities such as rice husks and dust float up, and heavier impurities such as stones sink. The heavier impurities cannot be supported by the suspended airflow and will sink to the collection box 8. The light impurities are sucked in by the vortex fan 10. The rice is guided into the dust collection box 11 through the connecting channel 12, and the filter prevents the backflow of impurities. After the separation is completed, the blower 6 blows the rice toward the conveyor belt 14 at a low speed. The magnetic plate on the conveyor belt 14 absorbs metal impurities to prevent them from entering the finished rice. The scraper 16 contacts the surface of the magnetic plate and automatically scrapes the absorbed magnetic impurities into the waste box 15. After various levels of impurity removal treatment, the clean rice is sent to the next processing flow or directly packaged on the conveyor belt 14. It can remove different impurities in the rice, eliminate multiple separation steps, and simplify the production process.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rice processing impurity remover, comprising a feed inlet (1), characterized in that: The bottom of the feed port (1) is connected to a vibration mixing bin (2). A vibration motor (3) is provided in the vibration mixing chamber (2), a vibration plate (4) is provided at the output end of the vibration motor (3), a blower (6) is provided on the vibration mixing chamber (2), and the vibration mixing chamber (2) is connected to an air flow suspension chamber (5). An axial flow fan (7) is provided in the air flow suspension bin (5), a collection box (8) is provided in the air flow suspension bin (5), and the collection box (8) is provided on both sides of the axial flow fan (7). The air outlet of the hair dryer (6) passes through the vibration mixing bin (2) and is connected to the air flow suspension bin (5). A vortex fan (10) is provided on the top wall of the air flow suspension bin (5). A dust collection box (11) is provided on the air flow suspension bin (5), and the dust collection box (11) is connected to the vortex fan (10) through a connecting channel (12). A filter is provided in the dust collection box (11). A ventilation hole (13) is provided on the side wall of the air flow suspension bin (5). The other end of the air flow suspension bin (5) is connected to a dust removal mechanism. The impurity removal mechanism comprises a conveyor belt (14), a magnetic plate is provided on the surface of the conveyor belt (14), a waste box (15) is provided below the conveyor belt (14), a scraper (16) is provided on the waste box (15), and the scraper (16) is in contact with the magnetic plate.

2. A rice processing impurity remover according to claim 1, characterized in that: The vibration plate (4) has an inclination angle, and the vibration plate (4) gradually decreases from the feed port (1) to the air flow suspension bin (5), and the inclination angle is 5°-15°.

3. A rice processing impurity remover according to claim 2, characterized in that: The axial flow fan (7) is provided with an isolation mesh plate (9), and the isolation mesh plate (9) is provided with a plurality of ventilation holes, and the aperture of the ventilation holes is 2 mm.

4. The rice processing impurity remover according to claim 3, wherein: The wind speed of the axial flow fan (7) is 4-6 m / s.

5. The rice processing impurity remover according to claim 4, characterized in that: The wind speed of the hair dryer (6) is 1-3 m / s.

6. The impurity remover for rice processing according to claim 5, characterized in that: The width of the magnetic plate is the same as the width of the conveyor belt (14).