Sorghum rice residue removal equipment integrating winnowing and screening

By driving the screen vibration through a rotating wheel and insert rod, combined with an air supply and collection mechanism, the problem of easy screen damage was solved, achieving an efficient and stable sorghum rice slag removal process, and improving product quality and equipment reliability.

CN224058045UActive Publication Date: 2026-03-31GUANGDONG ZHAOQING MODERN CEREAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

In traditional sorghum processing equipment, the screen is easily damaged by the impact of the eccentric wheel hammer, resulting in low screening efficiency and high cost, and difficulty in accurately removing impurities.

Method used

The screen vibration is driven by a combination of a rotating wheel and a rod with a moving groove, avoiding the hammering of the eccentric wheel. Combined with the air supply mechanism, the screen is precisely collected by the air separation and collection mechanism, ensuring the stability and durability of the screen.

Benefits of technology

It improves the stability and durability of the screen, enhances the purity and quality of sorghum rice, reduces equipment maintenance costs, and strengthens the resilience and market competitiveness of the industrial processing chain.

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Abstract

The utility model relates to the technical field of millet winnowing, in particular to winnowing and screening integrated sorghum rice deslagging equipment which comprises a machine body, a screening mechanism, an air supply mechanism and a collecting mechanism, and the screening mechanism comprises a screen, a moving block, a rotating wheel and a motor; the multiple screens are arranged in the machine body in the radial direction. The moving blocks are arranged at the two ends of the screen and are in rigid connection with the screen, and moving grooves are formed in the moving blocks. The rotating wheels are arranged at the two ends of the screen, inserting rods are arranged on the rotating wheels, the rotating wheels at the two ends of the screen are rigidly connected through the inserting rods, and the inserting rods are inserted into the moving grooves. When the rotating wheel rotates, the screen is in a vibration state, and at the moment, the screen can screen the sorghum rice; the motor is used for driving the rotating wheels to rotate and arranged on the outer wall of the machine body and drives other rotating wheels to rotate through a transmission belt. The device reduces the equipment maintenance cost and the shutdown frequency, prolongs the service life, provides stable equipment support for large-scale sorghum rice deslagging operation, and enhances the toughness of an industrial processing chain.
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Description

Technical Field

[0001] This utility model relates to the field of millet air separation technology, specifically to a sorghum rice slag removal device that integrates air separation and screening. Background Technology

[0002] Sorghum rice often contains impurities during processing, such as straw, soil particles, and shriveled grains. These impurities affect the quality, taste, and subsequent processing performance of the sorghum rice. Traditional processing methods rely on simple sieving or manual sorting, which are inefficient, costly, and difficult to accurately remove impurities.

[0003] Chinese Patent Publication No. CN221734084U discloses a millet processing air-separation device. Millet enters the machine body through a feeding hopper. A fan generates airflow through an air supply pipe to a distribution box, and then blows the millet into the machine body through an air outlet pipe and an air outlet hood, performing air separation on the millet. Impurities are blown into the collection port and enter the collection box through the opening. A second motor on the support plate drives a rotating wheel via a transmission belt to rotate a drive rod. The eccentric wheel of the drive rod strikes the screen, and the four corners of the screen slide on the round rod and vibrate under the action of springs, vibrating and screening the millet. This, combined with the air outlet hood, improves the sorting effect and efficiency. A first motor at the top of the collection box drives a drive wheel via a transmission belt to rotate a transmission wheel. The transmission wheel drives a rotating shaft and fan blades to rotate, generating suction to draw impurities into the collection box. The rotating shaft drives a cleaning plate to clean the dustproof screen to prevent clogging. The baffle at the cleaning port at the bottom of the collection box is removable for cleaning impurities. However, the durability of the screen in this patented device is insufficient. During the screening process, although the eccentric wheel hammering the screen can vibrate and screen, it is prone to irreversible damage to the screen.

[0004] Therefore, it is necessary to change the way the screen is vibrated by hammering to avoid the problem of short screen life. Utility Model Content

[0005] To address the aforementioned issues, an integrated sorghum rice slag removal device combining air separation and screening is provided. By setting movable blocks at both ends of the screen, with movable grooves on the movable blocks, and inserting the rod of the rotating wheel into the movable grooves, the vibration of the screen is converted into the rotation of the rotating wheel, thus solving the problem of irreversible damage to the screen caused by the eccentric wheel hammering the screen.

[0006] To address the problems of existing technologies, this utility model provides an integrated sorghum rice slag removal device combining air separation and screening, comprising a body, a screening mechanism, an air supply mechanism, and a collection mechanism. The screening mechanism includes a screen, moving blocks, rotating wheels, and a motor. Multiple screens are radially arranged within the body. Moving blocks are located at both ends of the screens and are rigidly connected to them, with moving grooves on each block. Rotating wheels are located at both ends of the screens and have insert rods on them. The rotating wheels at both ends of the screen are rigidly connected via the insert rods, which are inserted into the moving grooves. When the rotating wheels rotate, the screen vibrates, enabling it to screen the sorghum rice. The motor drives the rotating wheels to rotate and is located on the outer wall of the body. The motor drives the other rotating wheels to rotate via a transmission belt.

[0007] The preferred air supply mechanism includes a blower and an air duct; the blower is installed on the ground; one end of the air duct is connected to the blower, and the other end of the air duct is connected to the machine body; the blower blows air into the machine body through the air duct to perform air separation on the sorghum rice.

[0008] The preferred collection mechanism includes a collection port and a guide tube; the collection port is located at one end of the machine body away from the air supply mechanism; the guide tube is located outside the collection port to guide impurities coming out of the collection port.

[0009] The preferred machine body is provided with a guiding mechanism; the guiding mechanism includes a guide groove and a guide block; the guide groove is formed on the inner wall of the machine body; the guide block is disposed at both ends of the screen, and the guide block is rigidly connected to the screen; the guide block is slidably connected to the guide groove.

[0010] Preferably, the machine body has a feed inlet at the top and a discharge outlet at the bottom.

[0011] A collection tray is preferably provided below the guide tube.

[0012] The advantages of this utility model compared to the prior art are:

[0013] 1. This utility model abandons the eccentric wheel hammering method of easily damaged screens and adopts a combination of a rotating wheel, insert rod and moving groove to drive the screen vibration, avoiding irreversible damage, improving the stability and durability of the screen, ensuring the continuous reliability of sorghum rice screening operations, reducing equipment maintenance costs and downtime frequency, extending service life, providing stable equipment support for large-scale sorghum rice slag removal operations, and enhancing the resilience of the industrial processing chain.

[0014] 2. In this utility model, the blower and air duct of the air supply mechanism deliver air precisely and select air. Based on the difference in air force characteristics between sorghum rice and impurities, impurities are efficiently separated, significantly improving purity and quality, optimizing subsequent processing quality, meeting the stringent standards of food processing, enhancing product market competitiveness, expanding the application fields of sorghum rice, and helping to increase industrial value and efficiency.

[0015] 3. The collection port, guide tube, and collection tray in this utility model work together in an orderly manner to accurately collect impurities, prevent scattering and pollution, maintain environmental cleanliness, simplify the cleaning process, improve the overall equipment operation stability, reduce potential failures, and ensure a smooth and efficient sorghum rice slag removal process. This lays a solid foundation for the automation and large-scale development of the industry and improves production efficiency and economic benefits. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a sorghum rice slag removal device that integrates air separation and screening.

[0017] Figure 2 This is a side view of a sorghum rice slag removal device that integrates air separation and screening, according to this utility model.

[0018] Figure 3 This is a three-dimensional schematic diagram of the collection port of a sorghum rice slag removal device that integrates air separation and screening.

[0019] Figure 4 This is a three-dimensional schematic diagram of the screen of a sorghum rice slag removal device that integrates air separation and screening.

[0020] Figure 5 This is a three-dimensional schematic diagram of the screening mechanism of a sorghum rice slag removal device that integrates air separation and screening.

[0021] Figure 6 This is an exploded view of the screening mechanism of a sorghum rice slag removal device that integrates air separation and screening.

[0022] The following are the labels in the diagram: 1. Machine body; 2. Screening mechanism; 21. Screen; 22. Moving block; 221. Moving groove; 23. Rotary wheel; 231. Insert rod; 24. Motor; 3. Air supply mechanism; 31. Blower; 32. Air duct; 4. Collection mechanism; 41. Collection port; 42. Guide tube; 5. Guide mechanism; 51. Guide groove; 52. Guide block; 6. Feed inlet; 7. Discharge port; 8. Collection tray. Detailed Implementation

[0023] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0024] Reference Figures 1-6As shown: An integrated sorghum rice slag removal device combining air separation and screening includes a body 1, a screening mechanism 2, an air supply mechanism 3, and a collection mechanism 4. The screening mechanism 2 includes a screen 21, a moving block 22, a rotating wheel 23, and a motor 24. Multiple screens 21 are radially arranged inside the body 1. The moving block 22 is located at both ends of the screen 21 and is rigidly connected to the screen 21. The moving block 22 has a moving groove 221. The rotating wheel 23 is located at both ends of the screen 21 and has a rod 231. The rotating wheels 23 at both ends of the screen 21 are rigidly connected by the rods 231, which are inserted into the moving grooves 221. When the rotating wheel 23 rotates, the screen 21 vibrates, and at this time, the screen 21 can screen the sorghum rice. The motor 24 is used to drive the rotating wheel 23 to rotate. The motor 24 is located on the outer wall of the body 1, and the motor 24 drives the other rotating wheels 23 to rotate through a transmission belt.

[0025] In existing technology, an eccentric wheel continuously hammers the screen 21, causing the screen 21 to vibrate and thus screen the sorghum grains on it. However, during this continuous hammering process, the eccentric wheel causes irreversible damage to the screen 21. To address this issue, in sorghum grain screening scenarios, a motor 24 is started, driving the rotating wheel 23 to rotate. The rotating wheel 23 drives the insert rod 231 to rotate, and the insert rod 231 reciprocates within the moving groove 221, thereby pushing the screen 21 to vibrate in a vertical direction. Because there is no impact between the screen 21 and the rotating wheel 23 during vibration, irreversible damage to the screen 21 can be effectively avoided, ensuring the stability and durability of the screen 21 and improving the continuity and reliability of the sorghum grain screening operation.

[0026] Reference Figure 1 and Figure 2 The air supply mechanism 3 includes a blower 31 and an air duct 32; the blower 31 is installed on the ground; one end of the air duct 32 is connected to the blower 31, and the other end of the air duct 32 is connected to the machine body 1; the blower 31 blows air into the machine body 1 through the air duct 32 to perform air separation on the sorghum rice.

[0027] When the equipment starts the sorghum rice slag removal process, the blower 31 starts to operate, generating airflow. The airflow is drawn in through one end of the air duct 32. Since the other end of the air duct 32 is connected to the machine body 1, the airflow flows along the air duct 32 under the pressure of the blower 31 and enters the internal space of the machine body 1, applying wind force to the sorghum rice inside the machine body 1. Based on the different motion characteristics of sorghum rice and impurities under the action of wind force, wind separation is achieved. Lighter impurities are separated from sorghum rice under the blowing of wind force, thereby achieving the purpose of removing impurities from sorghum rice, improving the purity and quality of sorghum rice, and ensuring the quality requirements of subsequent processing or use.

[0028] Reference Figures 1-3As shown: The collection mechanism 4 includes a collection port 41 and a guide tube 42; the collection port 41 is located on the body 1 at one end away from the air supply mechanism 3; the guide tube 42 is located outside the collection port 41 to guide impurities coming out of the collection port 41.

[0029] When the air supply mechanism 3 performs air separation and screening operations on the sorghum rice inside the machine body 1 using the screening mechanism 2, the separated impurities are propelled by the air separation airflow to the end of the machine body 1 away from the air supply mechanism 3, and are finally discharged from the machine body 1 through the collection port 41 located at this end. The guide pipe 42 located outside the collection port 41 ensures that the impurities slide down along a predetermined trajectory to the designated collection area, preventing impurities from scattering randomly and causing secondary pollution or inconvenience in cleaning. This achieves orderly collection and centralized treatment of impurities, ensures a clean environment around the equipment, maintains efficient and smooth operation of the sorghum rice slag removal process, and improves the overall stability and reliability of the equipment operation.

[0030] Reference Figures 4-6 As shown: A guide mechanism 5 is provided inside the machine body 1; the guide mechanism 5 includes a guide groove 51 and a guide block 52; the guide groove 51 is opened on the inner wall of the machine body 1; the guide block 52 is disposed at both ends of the screen 21, and the guide block 52 is rigidly connected to the screen 21; the guide block 52 is slidably connected to the guide groove 51.

[0031] The guide blocks 52 at both ends of the screen 21 form a sliding connection structure with the guide grooves 51 opened on the inner wall of the machine body 1. When the motor 24 of the screening mechanism 2 drives the rotating wheel 23 to rotate, and the rotating wheel 23 drives the insert rod 231 to move in the moving groove 221 to vibrate and screen the sorghum rice, the guide blocks 52 slide strictly along the predetermined trajectory in the guide groove 51. This structure provides stable support and precise guidance for the vibration of the screen 21, limits the movement path of the screen 21, prevents the screen 21 from deviating from the design position due to vibration or producing irregular shaking or twisting, ensures that the screen 21 vibrates horizontally and stably in the machine body 1, ensures accurate and efficient screening of sorghum rice, maintains the stability of the coordinated operation of air separation and screening, improves the overall reliability and consistency of the equipment for sorghum rice slag removal, and ensures the processing quality and efficiency of sorghum rice.

[0032] Reference Figure 1 and Figure 2 As shown: A feed inlet 6 is provided on the upper part of the machine body 1; a discharge outlet 7 is provided on the lower part of the machine body 1.

[0033] Sorghum grains are fed into the machine body 1 through the feed inlet 6, and then the air separation and screening process begins. After processing, qualified sorghum grains are discharged by gravity through the discharge outlet 7 at the bottom, and enter the subsequent process.

[0034] Reference Figure 1 and Figure 2 As shown: A collection tray 8 is provided below the guide tube 42.

[0035] The collection tray 8 can hold the impurities discharged from the guide tube 42.

[0036] In the integrated sorghum rice slag removal equipment combining air separation and screening, sorghum rice enters from the feed inlet 6 at the top of the machine body 1. The motor 24 of the screening mechanism 2 drives the rotating wheel 23, which in turn drives the insert rod 231 to reciprocate within the moving grooves 221 of the moving blocks 22 at both ends of the screen 21. This causes multiple screens 21 radially arranged within the machine body 1 to vibrate. The guide blocks 52 at both ends of the screen 21 slide within the guide grooves 51 on the inner wall of the machine body 1 to ensure stability, thus achieving sorghum rice screening. The ground blower 31 of the air supply mechanism 3 generates airflow that enters the machine body 1 through the air duct 32, performing air separation based on the different characteristics of sorghum rice and impurities under wind force. The separated impurities are pushed by the air to the collection port 41 away from the air supply end of the machine body 1, and then slide down the guide pipe 42 to the collection tray 8. Qualified sorghum rice after screening and air separation is discharged from the discharge port 7 at the bottom of the machine body 1. The coordinated operation of all mechanisms achieves impurity removal and high-quality output of the sorghum rice, ensuring stable and efficient operation of the equipment and the quality of sorghum rice processing.

[0037] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A kind of integrated wind selection, screening integrated sorghum rice degerminator, including machine body (1), screening mechanism (2), air supply mechanism (3) and collection mechanism (4), it is characterized by: The screening mechanism (2) includes screen (21), moving block (22), runner (23) and motor (24); The screen (21) is provided with multiple and radially distributed in machine body (1); Moving block (22) is arranged at the both ends of screen (21), moving block (22) is rigidly connected with screen (21), and moving groove (221) is formed in moving block (22); Runner (23) is arranged at the both ends of screen (21), and insertion rod (231) is arranged on runner (23), and the runner (23) at the both ends of screen (21) is rigidly connected by insertion rod (231), and insertion rod (231) is inserted into moving groove (221); When runner (23) rotates, screen (21) is in vibration state, and screen (21) can screen sorghum at this time; The motor (24) is used to drive runner (23) to rotate, and the motor (24) is arranged on the outer wall of machine body (1), and the motor (24) drives runner (23) to rotate by transmission belt.

2. The integrated winnowing and sieving device for removing the chaff of sorghum according to claim 1, characterized in that, The air supply mechanism (3) includes air blower (31) and air pipe (32); The air blower (31) is placed on the ground; One end of the air pipe (32) is connected with the air blower (31), and the other end of the air pipe (32) is connected with the machine body (1); The air blower (31) blows air into the machine body (1) through the air pipe (32) to air select sorghum.

3. The integrated winnowing and sieving device for removing the chaff of sorghum according to claim 1, characterized in that, The collection mechanism (4) includes collection port (41) and guide pipe (42); The collection port (41) is opened on the machine body (1) and away from one end of the air supply mechanism (3); The guide pipe (42) is arranged outside the collection port (41) to guide impurities.

4. The integrated winnowing and sieving device for removing the chaff of sorghum according to claim 1, wherein, The machine body (1) is provided with guide mechanism (5); The guide mechanism (5) includes guide groove (51) and guide block (52); The guide groove (51) is opened on the inner wall of machine body (1); The guide block (52) is arranged at the both ends of screen (21), and the guide block (52) is rigidly connected with screen (21); The guide block (52) is slidably connected with the guide groove (51).

5. The integrated winnowing and sieving device for removing the chaff of sorghum according to claim 1, wherein, The machine body (1) is provided with feed port (6) above; The machine body (1) is provided with discharge port (7) below.

6. The integrated winnowing and sieving device for removing the chaff of sorghum according to claim 3, wherein, The guide pipe (42) is provided with collection disc (8) below.

Citation Information

Patent Citations

  • Millet processing winnowing device

    CN221734084U