Grain magnetic separation screening device

Abstract

The utility model discloses a grain magnetic separation screening device, belongs to the technical field of grain magnetic separation screening, and aims to solve the problems that a mechanism for turning over grains is lacked in the prior art, and magnetic substances at the lower parts of the grains are easily adsorbed incompletely when being adsorbed. Comprising two sets of mounting plates, a supporting frame is mounted in the middle of the upper portions of the two sets of mounting plates, a screw penetrates through the middle of the upper portion of the supporting frame, the lower end of the screw is rotationally connected with a lifting plate, a placing frame is mounted on the lower portion of the lifting plate, two sets of symmetrically-distributed T-shaped grooves are formed in the lower portion of the placing frame, and the placing frame is movably connected with a turning assembly through the T-shaped grooves. According to the grain magnetic separation screening device, through the arrangement of the overturning assembly, the overturning rods with different heights make direct contact with grains, the overturning effect on the grains with the large thickness is achieved, fine magnetized substances on the lower portions of the grains can be conveniently adsorbed, and therefore the adsorption effect on the magnetized substances in the grains is improved.

Description

Technical Field

[0001] This utility model belongs to the field of grain magnetic separation and screening technology, and specifically relates to a grain magnetic separation and screening device. Background Technology

[0002] During the planting, harvesting, transportation and processing of grains, metal impurities such as iron nails, iron wires, and iron sheets may be mixed in. These metal impurities can damage processing equipment and affect the quality of grain products. Therefore, it is necessary to perform magnetic separation on the metal substances in the grains, and a magnetic separation device is required during the magnetic separation process.

[0003] Belt magnetic separators are widely used for grain magnetic separation due to their large processing capacity, high efficiency, and simple structure. However, the belt magnetic separator is located at a certain distance from the grain, which makes it easy for the magnetic material at the bottom of the grain to be incompletely adsorbed, especially when the grain is thick. Therefore, a technical measure is proposed to solve the problem that the existing technology lacks a mechanism to turn the grain, which makes it easy for the magnetic material at the bottom of the grain to be incompletely adsorbed. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a grain magnetic separation and screening device, which aims to solve the problem that the existing technology lacks a mechanism to turn the grain, and the magnetic material at the bottom of the grain is easily not completely adsorbed.

[0006] (2) Technical solution

[0007] To address the aforementioned technical problems, this utility model provides a grain magnetic separation and screening device, comprising two sets of mounting plates. A support frame is mounted at the middle of the upper part of each set of mounting plates. A screw passes through the middle of the upper part of the support frame, and a lifting plate is rotatably connected to the lower end of the screw. A placement frame is mounted on the lower part of the lifting plate, and two sets of symmetrically distributed T-shaped grooves are provided in the lower part of the placement frame. A turning component is movably connected to the placement frame through the T-shaped grooves. Thanks to the turning component, turning rods of different heights directly contact the grain, and it has a turning effect on thicker grains, facilitating the adsorption of fine magnetic substances at the bottom of the grain, thereby improving the adsorption effect of magnetic substances within the grain.

[0008] Furthermore, a base frame is installed at the lower part of the mounting plate, and an active roller is rotatably mounted on the side of the mounting plate. The active roller is connected to a motor, and the motor is fixedly mounted on the side of the mounting plate.

[0009] Furthermore, a conveyor belt is fitted around the outside of the drive roller, and a driven roller is fitted at the other end of the conveyor belt. The driven roller is rotatably connected to the mounting plate.

[0010] Furthermore, a screw tube is installed in the middle of the upper surface of the mounting bracket, and two sets of symmetrically distributed sliding grooves are opened on both sides inside the mounting bracket.

[0011] Furthermore, a turntable is installed at the upper end of the screw, the screw is threadedly connected to the screw tube, and sliders are installed at the middle positions on both sides of the lifting plate, the sliders being slidably adapted to the slide groove.

[0012] Furthermore, the flipping assembly includes a connecting plate, on the upper surface of which are mounted two sets of symmetrically distributed T-shaped blocks. The length of the T-shaped blocks is less than that of the connecting plate, and the T-shaped blocks are adapted to T-shaped grooves. Multiple sets of vertical plates are mounted at both ends of the lower surface of the connecting plate, and a round rod is mounted between the vertical plates. Multiple sets of evenly distributed vertical rods are mounted on the lower surface of the round rod.

[0013] Furthermore, multiple sets of symmetrically distributed flipping rods are installed at both ends of the vertical rod, and the flipping rods and the ends of the round rods are rounded.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model, through the arrangement of a turntable, screw, lifting plate, and slider, facilitates the up-and-down movement of the lifting plate, thereby facilitating the contact of the turning component with the grain and improving the magnetic separation effect. Furthermore, the cooperation between the spring slider and the chute prevents the lifting plate from deflecting. The rotation of the turntable causes the permanent magnet, placement frame, and turning component to move downwards. When the turning component contacts the surface of the conveyor belt, the rotation of the turntable stops.

[0017] By setting up the flipping component, flipping rods of different heights directly contact the grains, and have a flipping effect on thicker grains, which facilitates the adsorption of fine magnetic materials at the bottom of the grains, thereby improving the adsorption effect of magnetic materials inside the grains. The permanent magnet magnetizes the flipping component, and the lower end of the vertical rod contacts the upper surface of the conveyor belt. When the grains are conveyed, the flipping rods contact the grains of different heights and flip the grains, thereby adsorbing the magnetic materials inside the grains. When it is necessary to remove the flipping component, it is removed along the T-shaped groove. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the support frame;

[0021] Figure 3 A schematic diagram of the lifting platform, turntable, and placement frame structure;

[0022] Figure 4 This is a schematic diagram of the flipping component structure.

[0023] The labels in the attached diagram are as follows: 1. Mounting plate; 2. Tilting assembly; 3. Support frame; 4. Screw tube; 5. Turntable; 6. Driven roller; 7. Base frame; 8. Driven roller; 9. Motor; 10. Conveyor belt; 11. Slide chute; 12. Screw; 13. Lifting plate; 14. Slider; 15. Placement frame; 16. T-slot; 201. Connecting plate; 202. T-block; 203. Vertical plate; 204. Round rod; 205. Vertical rod; 206. Tilting rod. Detailed Implementation

[0024] 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.

[0025] This specific embodiment is a grain magnetic separation and screening device, the structural schematic diagram of which is shown below. Figure 1 , Figure 2 , Figure 3As shown, the system includes a mounting plate 1, of which there are two sets. A support frame 3 is mounted at the upper middle position of each set of mounting plates 1. A screw 12 passes through the upper middle position of the support frame 3. A lifting plate 13 is rotatably connected to the lower end of the screw 12. A placement frame 15 is mounted on the lower part of the lifting plate 13. Two symmetrically distributed T-shaped grooves 16 are formed at the lower part of the placement frame 15. A flipping assembly 2 is movably connected to the placement frame 15 through the T-shaped grooves 16. A base frame 7 is mounted on the lower part of the mounting plate 1. A drive roller 8 is rotatably mounted on the side of the mounting plate 1. The drive roller 8 is connected to a motor 9. Fixedly installed on the side of the mounting plate 1, the drive roller 8 is fitted with a conveyor belt 10, and the other end of the conveyor belt 10 is fitted with a driven roller 6, which is rotatably connected to the mounting plate 1. A solenoid 4 is installed in the middle of the upper surface of the mounting frame. Two sets of symmetrically distributed slide grooves 11 are opened on both sides inside the mounting frame. A turntable 5 is installed on the upper end of the screw 12, and the screw 12 is threadedly connected to the solenoid 4. A slider 14 is installed in the middle of both sides of the lifting plate 13, and the slider 14 slides and adapts to the slide groove 11. When performing magnetic separation of grains, permanent magnets (such as neodymium iron boron magnets) are first installed. The permanent magnet is placed inside the placement frame 15 (the placement frame 15 is made of a non-ferrous material, such as aluminum). Then, the flipping assembly 2 is aligned with the T-slot 16 and inserted to complete the installation. Then, the turntable 5 is rotated to drive the screw 12 to rotate. The rotation of the screw 12 drives the lifting plate 13 to move downward. When the lifting plate 13 moves downward, the slider 14 slides along the slide groove 11 to prevent the lifting plate 13 from deflecting. The downward movement of the lifting plate 13 drives the permanent magnet, the placement frame 15, and the flipping assembly 2 to move downward. The flipping assembly 2 contacts the surface of the conveyor belt 10. When the turntable 5 stops rotating, the grain is conveyed through the conveyor belt 10. The grain is conveyed to the surface of the conveyor belt 10 by a conveying device (for example, a wind-powered elevator is used to convey the grain to the surface of the conveyor belt 10, or a separation elevator uses wind power to blow the grain). The motor 9 is started to drive the drive roller 8 to rotate. The rotation of the drive roller 8 drives the conveyor belt 10 to rotate. The rotation of the conveyor belt 10 drives the driven roller 6 to rotate. When the conveyor belt 10 rotates, the grain is conveyed through the support frame 3 and the turning component 2 to absorb magnetic materials.

[0026] Reference Figure 1 , Figure 3 , Figure 4As shown, the flipping assembly 2 includes a connecting plate 201. Two sets of symmetrically distributed T-shaped blocks 202 are mounted on the upper surface of the connecting plate 201. The length of the T-shaped blocks 202 is less than that of the connecting plate 201. The T-shaped blocks 202 are adapted to the T-shaped grooves 16. Multiple sets of vertical plates 203 are mounted at both ends of the lower surface of the connecting plate 201. A round rod 204 is installed between the vertical plates 203. Multiple sets of evenly distributed vertical rods 205 are mounted on the lower surface of the round rod 204. Multiple sets of symmetrically distributed flipping rods 206 are mounted at both ends of the vertical rods 205. The flipping rods 206 and the round rods 204 have rounded ends. The specific working method of the flipping assembly 2 is that a permanent magnet magnetizes the flipping assembly 2 (the flipping assembly 2 is made of iron, and the magnetization...). The principle is that when an iron material approaches a magnet, the magnetic field generated by the magnet affects the magnetic domains inside the iron material. Under the influence of the magnetic field, the magnetic domains rearrange, causing their magnetic moments to align, thus making the iron material exhibit magnetism as a whole. The lower end of the vertical rod 205 contacts the upper surface of the conveyor belt 10. During grain conveying, the turning rod 206 contacts grains at different heights, turning the grains and attracting the magnetic substances inside them. When it is necessary to remove the turning component 2, it is removed along the T-slot 16 (the T-slot 16 is not continuous; when the turning component 2 receives the impact force of the grains, it will not detach from the T-slot 16; the grain conveying direction is...). Figure 1 (From right to left in the middle).

[0027] Working principle: When performing magnetic separation on grains, firstly, a permanent magnet (e.g., a neodymium iron boron permanent magnet) is installed and placed inside the placement frame 15 (the placement frame 15 is made of a non-ferrous material, such as aluminum). Then, the flipping assembly 2 is aligned with the T-slot 16 and inserted to complete the installation. Next, the turntable 5 is rotated, causing the screw 12 to rotate. The rotation of the screw 12 causes the lifting plate 13 to move downwards. As the lifting plate 13 moves downwards, the slider 14 slides along the slide groove 11 to prevent the lifting plate 13 from deflecting. The downward movement of the lifting plate 13 causes the permanent magnet, placement frame 15, and flipping assembly 2 to move downwards. When the flipping assembly 2 contacts the surface of the conveyor belt 10, the turntable 5 stops rotating, and the grain is conveyed through the conveyor belt 10. Grain is conveyed to the surface of conveyor belt 10 (for example, using a wind-powered elevator to convey grain to the surface of conveyor belt 10, or using a separation elevator to blow grain with wind). The motor 9 is started to drive the active roller 8 to rotate. The active roller 8 rotates to drive the conveyor belt 10 to rotate. The conveyor belt 10 rotates to drive the driven roller 6 to rotate. When the conveyor belt 10 rotates, the grain is conveyed through the support frame 3 and the turning component 2 to absorb magnetic materials. The arrangement of turntable 5, screw 12, lifting plate 13 and slider 14 facilitates the up and down movement of the lifting plate 13, thereby facilitating the contact of the turning component 2 with the grain, improving the magnetic separation effect. In addition, the cooperation between the spring slider 14 and the chute 11 can prevent the lifting plate 13 from deflecting.

[0028] The specific working principle of the turning component 2 is as follows: a permanent magnet magnetizes the turning component 2 (the turning component 2 is made of iron; the magnetization principle is that when the iron material is close to the magnet, the magnetic field generated by the magnet will affect the magnetic domains inside the iron material. Under the influence of the magnetic field, the magnetic domains will rearrange, making their magnetic moments tend to be consistent, thus making the iron material exhibit magnetism as a whole). The lower end of the vertical rod 205 contacts the upper surface of the conveyor belt 10. During grain conveying, the turning rod 206 contacts the grains at different heights, turning the grains and thus attracting the magnetic substances inside the grains. When it is necessary to remove the turning component 2, it is removed along the T-shaped groove 16 (the T-shaped groove 16 is not continuous; when the turning component 2 receives the impact force of the grains, it will not detach from the T-shaped groove 16; the grain conveying direction is...). Figure 1 (From right to left in the middle), through the setting of the flipping component 2, the flipping rods 206 of different heights directly contact the grains, and have a flipping effect on thicker grains, which facilitates the adsorption of fine magnetic substances at the bottom of the grains, thereby improving the adsorption effect of magnetic substances in the grains.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grain magnetic separation and screening device, comprising a mounting plate (1), characterized in that, There are two sets of mounting plates (1). A support frame (3) is installed at the middle of the upper part of the two sets of mounting plates (1). A screw (12) is passed through the middle of the upper part of the support frame (3). A lifting plate (13) is rotatably connected to the lower end of the screw (12). A placement frame (15) is installed at the lower part of the lifting plate (13). Two sets of symmetrically distributed T-shaped grooves (16) are opened at the lower part of the placement frame (15). A flipping assembly (2) is movably connected to the placement frame (15) through the T-shaped grooves (16). The component (2) includes a connecting plate (201), on the upper surface of which two sets of symmetrically distributed T-shaped blocks (202) are installed. The length of the T-shaped blocks (202) is less than that of the connecting plate (201). The T-shaped blocks (202) are adapted to the T-shaped groove (16). Multiple sets of vertical plates (203) are installed at both ends of the lower surface of the connecting plate (201). A round rod (204) is installed between the vertical plates (203). Multiple sets of evenly distributed vertical rods (205) are installed on the lower surface of the round rod (204).

2. The grain magnetic separation and screening device according to claim 1, characterized in that, The mounting plate (1) is equipped with a base frame (7) at the bottom. An active roller (8) is rotatably mounted on the side of the mounting plate (1). The active roller (8) is connected to a motor (9). The motor (9) is fixedly mounted on the side of the mounting plate (1).

3. A grain magnetic separation and screening device according to claim 2, characterized in that, The active roller (8) is fitted with a conveyor belt (10), and the other end of the conveyor belt (10) is fitted with a driven roller (6). The driven roller (6) is rotatably connected to the mounting plate (1).

4. A grain magnetic separation and screening device according to claim 1, characterized in that, A helical tube (4) is installed in the middle of the upper surface of the support frame (3), and two sets of symmetrically distributed sliding grooves (11) are opened on both sides inside the support frame (3).

5. A grain magnetic separation and screening device according to claim 4, characterized in that, A turntable (5) is installed on the upper end of the screw (12). The screw (12) is threadedly connected to the screw tube (4). A slider (14) is installed in the middle of both sides of the lifting plate (13). The slider (14) is slidably adapted to the slide groove (11).

6. A grain magnetic separation and screening device according to claim 1, characterized in that, Multiple sets of symmetrically distributed flipping rods (206) are installed at both ends of the vertical rod (205), and the flipping rods (206) and the round rods (204) are rounded at the ends.

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