A feed ingredient screening and impurity removal device

By combining mechanical crushing, pneumatic screening, and magnetic adsorption, the problem of low efficiency in existing feed raw material screening and impurity removal devices has been solved, achieving efficient impurity removal for various feed raw materials, especially the crushing and separation of agglomerated raw materials. It is applicable to various feed raw materials such as soybeans and corn.

CN224422956UActive Publication Date: 2026-06-30CHANGSHA HUAGANG FEED CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGSHA HUAGANG FEED CO LTD
Filing Date
2025-06-04
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing feed raw material screening and impurity removal devices suffer from low screening efficiency and incomplete impurity removal, especially in the difficulty of effectively separating straw clumps, which affects the normal operation of subsequent processing equipment.

Method used

It adopts a triple impurity removal mechanism that combines mechanical crushing, air screening and magnetic adsorption. It breaks up agglomerated raw materials by stirring, uses air to blow away light impurities, and uses magnetic chucks to adsorb metal impurities, thus achieving 360-degree airflow screening without dead angles.

Benefits of technology

It improves the purity of feed ingredients, effectively removes impurities such as metal, straw, and dust, and is suitable for a variety of feed ingredients, especially for crushing and separating lumpy ingredients, meeting the needs of modern feed production.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of feed processing technology, specifically a feed raw material screening and impurity removal device, including a machine body. A circular cavity is provided in the middle of the machine body, and a top frame is fixedly installed on the top of the circular cavity. A feeding component is provided on the top frame, and a feed hopper is installed at one end of the top of the top frame. A metal adsorption component is provided on one side of the top of the top frame. A fixed cylinder is fixed in the middle of the bottom of the circular cavity, and mounting holes are opened in the middle of the fixed cylinder and the middle of the bottom of the machine body. A rotating shaft is rotatably connected to the inner wall of the mounting hole through a bearing. This utility model can combine mechanical crushing, air screening, and magnetic adsorption triple impurity removal mechanism, which can effectively remove various impurities such as metal, straw, and dust, improve the purity of feed raw materials, and is suitable for screening various feed raw materials such as soybeans and corn. It has a good crushing and separation effect on agglomerated raw materials, meeting the needs of modern feed production.
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Description

Technical Field

[0001] This utility model relates to the field of feed processing technology, specifically a feed raw material screening and impurity removal device. Background Technology

[0002] Feed is a general term for the food consumed by all domesticated animals. Generally, feed mainly refers to the food raised in agriculture or animal husbandry, including more than ten varieties of feed ingredients such as soybeans, corn, and grains. During feed processing, raw materials often contain impurities such as metal, dust, and straw. These impurities not only affect the quality of the feed but may also damage subsequent processing equipment. Therefore, screening and impurity removal devices are needed to remove impurities from feed raw materials.

[0003] Currently, existing feed raw material screening and impurity removal devices suffer from problems such as low screening efficiency and incomplete impurity removal, making it difficult to meet the needs of modern feed production. For example, some straw may clump together with the raw materials, and these clumps of raw materials containing straw cannot be effectively separated, thus reducing the impurity removal efficiency. Therefore, it is urgent to design a feed raw material screening and impurity removal device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a feed raw material screening and impurity removal device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A feed ingredient screening and impurity removal device includes a body with a circular cavity in the middle and a top frame fixedly installed on the top of the cavity. A feeding assembly is installed on the top frame, and a feed hopper is installed at one top end of the top frame. A metal adsorption assembly is installed on one side of the top of the top frame. A fixed cylinder is fixed at the middle of the bottom of the circular cavity, and mounting holes are opened at the middle of the fixed cylinder and the middle of the bottom of the body. A rotating shaft is rotatably connected to the inner wall of the mounting hole through a bearing. A second motor for driving the rotating shaft is fixedly installed at the bottom of the body, and a conical seat is fixedly installed on the top of the rotating shaft. A stirring blade is fixedly arranged at equal intervals on the surface of the conical seat. A blower assembly is installed at the bottom of the fixed cylinder.

[0007] Furthermore, the blower assembly includes blower holes equidistantly opened at the bottom of the fixed cylinder and the bottom of the machine body, and each blower hole has an air duct installed on its inner wall. Each air duct has a cross fixedly installed on its inner wall. A drive shaft is rotatably connected to the middle of the cross, and fan blades are fixedly installed on the outer wall of the drive shaft. A small gear is fixedly installed on the top of the drive shaft, and a large gear is fixedly installed on the outer wall of the rotating shaft, with the large gear meshing with the small gear.

[0008] Furthermore, the surface of the fixed cylinder is provided with an annular air groove, and an annular support net is fixedly installed on the inner wall of the outer diameter of the annular air groove. Multiple rows of air inlets are provided on the inner wall of the inner diameter of the annular air groove, and the air inlets are connected to the interior of the fixed cylinder.

[0009] Furthermore, a first annular inclined seat is fixedly installed on the bottom of the outer wall of the fixed cylinder and the bottom of the inner wall of the circular cavity, and a discharge port is opened on the inner wall of the circular cavity near the lowest end of the first annular inclined seat, and a discharge pipe extending out of the machine body is installed on the inner wall of the discharge port.

[0010] Furthermore, the inner wall of the circular cavity is provided with an annular discharge groove, and the inner wall of the annular discharge groove is fixed with baffles distributed in an annular pattern at equal intervals. A second annular inclined seat is fixedly installed at the bottom of the annular discharge groove, and a discharge port is provided on the inner wall of the annular discharge groove near the lowest end of the second annular inclined seat. A discharge pipe is installed on the inner wall of the discharge port.

[0011] Furthermore, the feeding assembly includes two drive rollers rotatably disposed within the top frame, and a conveyor belt is drivenly connected to the two drive rollers. A first motor for driving the drive rollers to rotate is fixedly installed on one outer wall of the top frame, and a circular hole with a circular cavity is opened on one side of the bottom of the top frame.

[0012] Furthermore, the metal adsorption assembly includes a disassembly port opened on one side of the top of the top frame, and an adsorption frame is installed on the disassembly port, with a magnetic suction cup fixedly installed on the inner wall of the adsorption frame.

[0013] Furthermore, a controller is fixedly installed on one side of the machine body, and the controller is electrically connected to the first motor, the second motor and the magnetic chuck, and a support frame is fixedly installed at the bottom of the machine body.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention uses a second motor to drive a rotating shaft, a conical seat, and a stirring blades to rotate. On the one hand, it can stir and crush feed ingredients, effectively separating lumpy ingredients from impurities such as straw, thus improving the efficiency of subsequent screening. On the other hand, it can make the feed ingredients present a ring-shaped feeding phenomenon in the circular cavity, preparing for the subsequent impurity removal process.

[0016] This invention, during the feeding process, can adsorb metallic impurities in the raw materials through the magnetic suction cup in the adsorption frame, avoiding damage to subsequent equipment. Under the action of the blower assembly, the rotating shaft drives the large gear to rotate, and the meshing small gear drives the fan blade to rotate and blow air. Under the action of the annular air trough and the blower, a 360-degree airflow without dead angles is formed, which blows away light impurities such as dust and straw fragments in the annularly falling feed raw materials, realizing wind-powered screening, enhancing the impurity removal effect, while reducing independent power components, simplifying the structure and reducing energy consumption.

[0017] This invention combines mechanical crushing, pneumatic screening, and magnetic adsorption into a triple impurity removal mechanism, which can effectively remove various impurities such as metal, straw, and dust, improve the purity of feed raw materials, and is suitable for screening various feed raw materials such as soybeans and corn. It has a particularly good crushing and separation effect on agglomerated raw materials, meeting the needs of modern feed production. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a feed raw material screening and impurity removal device.

[0019] Figure 2 This is a three-dimensional sectional view of a feed ingredient screening and impurity removal device.

[0020] Figure 3 This is a schematic diagram of the mounting holes and blower holes of a feed raw material screening and impurity removal device.

[0021] Figure 4 This is a schematic diagram of the blower assembly structure of a feed raw material screening and impurity removal device.

[0022] Figure 5 This is a schematic diagram of the annular support mesh and agitator plate structure of a feed raw material screening and impurity removal device.

[0023] Figure 6 This is a top view of the blower assembly of a feed ingredient screening and impurity removal device.

[0024] In the diagram: 1. Machine body; 2. Top frame; 3. Adsorption frame; 4. Feed hopper; 5. First motor; 6. Discharge pipe; 7. Controller; 8. Support frame; 9. Discharge pipe; 10. Drive roller; 11. Conveyor belt; 12. Circular cavity; 13. Annular discharge trough; 14. Baffle column; 15. Fixed cylinder; 16. First annular inclined seat; 17. Blower assembly; 1701. Blower hole; 1702. Air duct; 1703. Cross; 1704. Drive shaft; 1705. Fan blade; 1706. Small gear; 1707. Large gear; 18. Second motor; 19. Rotating shaft; 20. Second annular inclined seat; 21. Annular support net; 22. Blower outlet; 23. Conical seat; 24. Magnetic chuck; 25. Mounting hole; 26. Annular air trough; 27. Stirring plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-6This utility model provides a feed raw material screening and impurity removal device, including a body 1, a circular cavity 12 in the middle of the body 1, a top frame 2 fixedly installed on the top of the circular cavity 12, a feeding component on the top frame 2, a feed hopper 4 installed at one end of the top of the top frame 2, a metal adsorption component on one side of the top of the top frame 2, a fixed cylinder 15 fixedly installed at the bottom middle of the circular cavity 12, an annular air groove 26 opened on the surface of the fixed cylinder 15, an annular support net 21 fixedly installed on the inner wall of the outer diameter of the annular air groove 26, multiple rows of equally spaced air inlets 22 opened on the inner wall of the inner diameter of the annular air groove 26, the air inlets 22 communicating with the interior of the fixed cylinder 15, the air inlets 22 being distributed in a 360-degree angle without dead angles, the bottom of the outer wall of the fixed cylinder 15 and the circular A first annular inclined seat 16 is fixedly installed at the bottom of the inner wall of the cavity 12. A discharge port is formed on the inner wall of the circular cavity 12 near the lowest end of the first annular inclined seat 16. A discharge pipe 9 extending out of the machine body 1 is installed on the inner wall of the discharge port. An annular discharge groove 13 is formed on the inner wall of the circular cavity 12. Equally spaced, annularly distributed baffle posts 14 are fixed on the inner wall of the annular discharge groove 13. A second annular inclined seat 20 is fixedly installed at the bottom of the annular discharge groove 13. A discharge port is formed on the inner wall of the annular discharge groove 13 near the lowest end of the second annular inclined seat 20. A discharge pipe 6 is installed on the inner wall of the discharge port. An installation hole 25 is formed at the middle of the fixed cylinder 15 and the middle of the bottom of the machine body 1. A rotating shaft 19 is rotatably connected to the inner wall of the installation hole 25 via a bearing. A second motor 18 is fixedly installed at the bottom to drive the rotating shaft 19 to rotate, and a conical seat 23 is fixedly installed at the top of the rotating shaft 19. Agitators 27 are evenly distributed on the surface of the conical seat 23. The second motor 18 drives the rotating shaft 19, conical seat 23, and agitators 27 to rotate. This can, on the one hand, stir and crush the feed ingredients, effectively separating lumpy ingredients from straw and other impurities; on the other hand, it allows the feed ingredients to flow in a ring within the circular cavity 12, preparing for subsequent impurity removal. A blower assembly 17 is installed at the bottom of the fixed cylinder 15. The blower assembly 17 includes blower holes 1701 evenly spaced at the bottom of the fixed cylinder 15 and the bottom of the machine body 1, and air ducts 1702 are installed on the inner walls of each blower hole 1701. The inner wall of component 2 is fixedly equipped with crosses 1703. A drive shaft 1704 is rotatably connected to the middle of the crosses 1703. Fan blades 1705 are fixedly installed on the outer wall of the drive shaft 1704. A small gear 1706 is fixedly installed on the top of the drive shaft 1704. A large gear 1707 is fixedly installed on the outer wall of the rotating shaft 19. The large gear 1707 meshes with the small gear 1706. Under the action of the blower assembly 17, the rotating shaft 19 drives the large gear 1707 to rotate. The meshing small gear 1706 drives the fan blades 1705 to rotate and blow air. Through the action of the annular air groove 26 and the air outlet 22, a 360-degree airflow without dead angle is formed, which blows away light impurities such as dust and straw fragments in the annularly falling feed raw materials, thus realizing wind-powered screening.

[0027] Specifically, the feeding assembly includes two drive rollers 10 rotatably disposed inside the top frame 2, and a conveyor belt 11 is connected to the two drive rollers 10. A first motor 5 for driving the drive rollers 10 to rotate is fixedly installed on one side of the outer wall of the top frame 2. A circular hole communicating with a circular cavity 12 is opened on one side of the bottom of the top frame 2 to transport the raw material to the lower circular cavity 12 for convenient feeding.

[0028] Specifically, the metal adsorption assembly includes a disassembly port on one side of the top of the top frame 2, and an adsorption frame 3 is installed on the disassembly port. A magnetic suction cup 24 is fixedly installed on the inner wall of the adsorption frame 3. The magnetic suction cup 24 adsorbs metal impurities such as iron nails and iron wires in the raw materials, thereby achieving the function of preliminary impurity removal.

[0029] Specifically, a controller 7 is fixedly installed on one side of the machine body 1, and the controller 7 is electrically connected to the first motor 5, the second motor 18 and the magnetic chuck 24. A support frame 8 is fixedly installed at the bottom of the machine body 1. The controller 7 facilitates centralized control of the operation of the entire device.

[0030] The working principle of this utility model is as follows: When in use, the raw material is fed into the top frame 2 through the feeding hopper 4. The first motor 5 drives the transmission roller 10, which drives the conveyor belt 11 to transport the raw material to the lower circular cavity 12. During the conveying process, the magnetic chuck 24 is energized, which adsorbs metal impurities such as iron nails and iron wires in the raw material, thus achieving preliminary impurity removal.

[0031] Next, the second motor 18 is started, driving the rotating shaft 19 to rotate the top conical seat 23 and the stirring plate 27 at high speed. The inclined surface of the conical seat 23 cooperates with the stirring plate 27 to stir and break the falling raw materials, so that the lumpy raw materials, especially those containing straw, are dispersed into smaller particles, which is convenient for subsequent screening. It also makes the raw materials flow in a ring at the gap between the circular cavity 12 and the fixed cylinder 15.

[0032] Furthermore, when the rotating shaft 19 rotates, the meshing of the large gear 1707 and the small gear 1706 drives the transmission shaft 1704 and the fan blade 1705 to rotate. Airflow is blown into the fixed cylinder 15 through the air duct 1702 and the blower hole 1701. The airflow is sprayed into the annular air trough 26 in a 360° angle without dead angle through the blower 22, and fully contacts the falling raw materials. Light impurities such as dust and straw fragments are carried by the airflow into the annular discharge trough 13 and discharged through the second annular inclined seat 20 and the discharge pipe 6. The material is blocked from being discharged with the airflow by the baffle column 14, while the raw materials such as soybeans and corn sink under the action of gravity and are collected through the first annular inclined seat 16 and discharged through the discharge pipe 9.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention.

Claims

1. A feed ingredient screening and impurity removal device, comprising a body (1), characterized in that: A circular cavity (12) is provided in the middle of the machine body (1), and a top frame (2) is fixedly installed on the top of the circular cavity (12). A feeding component is provided on the top frame (2), and a feeding hopper (4) is installed at one end of the top of the top frame (2). A metal adsorption component is provided on one side of the top of the top frame (2). A fixed cylinder (15) is fixed in the middle of the bottom of the circular cavity (12), and an installation hole (25) is opened in the middle of the fixed cylinder (15) and the middle of the bottom of the machine body (1). A rotating shaft (19) is rotatably connected to the inner wall of the installation hole (25) through a bearing. A second motor (18) for driving the rotating shaft (19) to rotate is fixedly installed at the bottom of the machine body (1), and a conical seat (23) is fixedly installed on the top of the rotating shaft (19). A stirring blade (27) is fixedly distributed at equal intervals on the surface of the conical seat (23). A blower component (17) is provided at the bottom of the fixed cylinder (15).

2. The feed ingredient screening and impurity removal device according to claim 1, characterized in that: The blower assembly (17) includes blower holes (1701) equidistantly opened at the bottom of the fixed cylinder (15) and the bottom of the body (1), and each blower hole (1701) is equipped with an air duct (1702). Each air duct (1702) is fixedly equipped with a cross (1703) on its inner wall. A drive shaft (1704) is rotatably connected to the middle of the cross (1703), and each drive shaft (1704) is fixedly equipped with a fan blade (1705) on its outer wall. Each drive shaft (1704) is fixedly equipped with a small gear (1706) on its top. Each rotating shaft (19) is fixedly equipped with a large gear (1707) on its outer wall, and the large gear (1707) meshes with the small gear (1706).

3. The feed ingredient screening and impurity removal device according to claim 2, characterized in that: The surface of the fixed cylinder (15) is provided with an annular air groove (26), and an annular support net (21) is fixedly installed on the inner wall of the outer diameter of the annular air groove (26). Multiple rows of equally spaced air inlets (22) are provided on the inner wall of the inner diameter of the annular air groove (26), and the air inlets (22) are connected to the interior of the fixed cylinder (15).

4. The feed ingredient screening and impurity removal device according to claim 3, characterized in that: The bottom of the outer wall of the fixed cylinder (15) and the bottom of the inner wall of the circular cavity (12) are fixedly installed with a first annular inclined seat (16), and the inner wall of the circular cavity (12) near the lowest end of the first annular inclined seat (16) is provided with a discharge port, and the inner wall of the discharge port is provided with a discharge pipe (9) extending out of the machine body (1).

5. The feed ingredient screening and impurity removal device according to claim 4, characterized in that: The inner wall of the circular cavity (12) is provided with an annular discharge groove (13), and the inner wall of the annular discharge groove (13) is fixed with baffles (14) that are evenly distributed in an annular pattern. The bottom of the annular discharge groove (13) is fixedly installed with a second annular inclined seat (20), and the inner wall of the annular discharge groove (13) near the lowest end of the second annular inclined seat (20) is provided with a discharge port, and the inner wall of the discharge port is equipped with a discharge pipe (6).

6. The feed ingredient screening and impurity removal device according to claim 5, characterized in that: The feeding assembly includes two drive rollers (10) rotatably disposed inside the top frame (2), and a conveyor belt (11) is connected to the two drive rollers (10). A first motor (5) for driving the drive rollers (10) to rotate is fixedly installed on one side of the outer wall of the top frame (2). A circular hole with a circular cavity (12) is opened on one side of the bottom of the top frame (2).

7. The feed ingredient screening and impurity removal device according to claim 6, characterized in that: The metal adsorption assembly includes a disassembly port on one side of the top of the top frame (2), and an adsorption frame (3) is installed on the disassembly port. A magnetic chuck (24) is fixedly installed on the inner wall of the adsorption frame (3).

8. The feed ingredient screening and impurity removal device according to claim 7, characterized in that: A controller (7) is fixedly installed on one side of the body (1), and the controller (7) is electrically connected to the first motor (5), the second motor (18) and the magnetic chuck (24). A support frame (8) is fixedly installed at the bottom of the body (1).