Feed production raw material screening and dust removing device

Abstract

The utility model discloses a feed production raw material screening and dust removing device which comprises a rack, a feeding hopper and a screw feeder, the feeding hopper is installed on the top of a sleeve where a screw of the screw feeder is located, an inclined screen is arranged in a box body, the bottom end of the box body is communicated with a discharging hopper, and the discharging hopper is communicated with a dust removing hopper. A lifting motor is installed in the center of the top end of the semicircular top cover, exhaust fans are installed on the left side and the right side of the lifting motor, and the bottom end of the lifting motor is connected with an adsorption filtering mechanism through a lifting shaft. According to the structure of the device, an upper pressing plate is driven by a lifting motor under the action of a lifting shaft to do repeated up-and-down lifting motion, so that an activated carbon filter screen can do up-and-down opening and closing motion in a semicircular top cover, dust particles are in full contact with the activated carbon filter screen and are adsorbed, and the dust removal efficiency is improved; and the semicircular top cover and the box body are of a detachable assembly structure, so that the multiple activated carbon filter screen surfaces can be cleaned conveniently after the semicircular top cover is taken down, and long-term use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of feed production, in particular to a screening and dust removal device for feed production raw materials. Background Art

[0002] During the feed production process, it is necessary to screen the feed raw materials according to the corresponding particle sizes so that various different raw materials after screening can be mixed and stirred correspondingly to make feed. During the screening process of the raw materials, dust will be scattered, which affects the staff near the equipment and also pollutes the environment. Therefore, it is necessary to carry out dust removal treatment during the raw material screening process. In common dust removal equipment, only a suction fan and a fixed filter screen are used for dust removal treatment. The fixed filter screen is difficult to make the scattered dust particles fully contact the surface, and it is difficult to carry out subsequent cleaning operations. After long-term use, it is inevitable that too much dust accumulates, affecting the dust removal efficiency. Therefore, this solution provides a screening and dust removal device for feed production raw materials. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a screening and dust removal device for feed production raw materials to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A screening and dust removal device for feed production raw materials, including a frame, a feed hopper and a screw feeder. A box body is installed at the top end of the frame. A semi-circular top cover is arranged at the top end of the box body. One end of the box body is connected with a screw feeder. A feed hopper is installed at the top of the sleeve where the screw of the screw feeder is located. An inclined screen is arranged inside the box body. A discharge hopper is communicated with the bottom end of the box body. A lifting motor is installed at the center of the top end of the semi-circular top cover. Suction fans are installed on both the left and right sides of the lifting motor. The bottom end of the lifting motor is connected with an adsorption and filtration mechanism through a lifting shaft;

[0005] The adsorption and filtration mechanism includes an upper pressing plate, a bottom plate, spring columns, a plurality of activated carbon filter screens and a grid plate. The bottom end of the lifting shaft is connected to the central surface of the upper pressing plate. A plurality of air-permeable grid plates are arranged on the upper pressing plate. The upper pressing plate and the bottom plate are connected by a plurality of spring columns. The left and right ends of the bottom plate and the left and right inner walls of the semi-circular top cover are fixedly connected through brackets. The joints of the plurality of activated carbon filter screens are rotatably connected through rotating shafts to form a Z-shaped folding shape.

[0006] Preferably, a piston discharge port is arranged on the outer side of the box body, and the piston discharge port is located at the bottom end of the inclined surface of the screen.

[0007] Preferably, the semi-circular top cover and the box body are fixed by bolts, and a driving motor is connected to the outer side of the end of the screw of the screw feeder.

[0008] Preferably, the lifting motor drives the upper pressing plate to move up and down directly above the bottom plate through a lifting shaft.

[0009] Advantages

[0010] The utility model provides a screening and dust removal device for feed production raw materials, which has the following advantages:

[0011] In the structure of this device, during the screening process of feed raw materials in the box through the screen, the exhaust fan extracts dust particles from the inside of the box to the outside. Under the action of the lifting shaft, the lifting motor drives the upper pressing plate to perform repeated up and down movements, enabling the activated carbon filter screen to perform up and down opening and closing movements inside the semi-circular top cover, fully adsorbing the dust particles floating in the box, allowing the dust particles to fully contact and be adsorbed by the activated carbon filter screen, improving the dust removal efficiency. Moreover, the semi-circular top cover and the box are of a detachable assembly structure, which is convenient to remove the semi-circular top cover and clean the surfaces of multiple activated carbon filter screens, facilitating long-term use. Description of the Drawings

[0012] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 is a front sectional view of the utility model;

[0014] Figure 3 is an assembly structure diagram of the activated carbon filter screen of the utility model;

[0015] In the figure: 1, frame; 2, feed hopper; 3, screw feeder; 4, box; 5, semi-circular top cover; 6, discharge hopper; 7, lifting motor; 8, exhaust fan; 9, lifting shaft; 10, upper pressing plate; 11, bottom plate; 12, spring column; 13, activated carbon filter screen; 14, grid plate; 15, piston discharge port; 16, screen. Detailed Embodiments

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figures 1-3, the present utility model provides a technical solution: a screening and dust removal device for feed production raw materials, which includes a frame 1, a feed hopper 2 and a screw feeder 3. A box body 4 is installed at the top end of the frame 1. A semi-circular top cover 5 is arranged at the top end of the box body 4. One end of the box body 4 is connected to a screw feeder 3. A feed hopper 2 is installed at the top of the sleeve where the screw of the screw feeder 3 is located. An inclined screen 16 is arranged inside the box body 4. A discharge hopper 6 is communicated with the bottom end of the box body 4. A lifting motor 7 is installed at the center of the top end of the semi-circular top cover 5. Exhaust fans 8 are installed on both the left and right sides of the lifting motor 7. The bottom end of the lifting motor 7 is connected to an adsorption and filtration mechanism through a lifting shaft 9;

[0018] The adsorption and filtration mechanism includes an upper pressing plate 10, a bottom plate 11, spring columns 12, a number of activated carbon filter meshes 13 and a grid plate 14. The bottom end of the lifting shaft 9 is connected to the central surface of the upper pressing plate 10. A number of ventilated grid plates 14 are arranged on the upper pressing plate 10. The upper pressing plate 10 and the bottom plate 11 are connected by a number of spring columns 12. The left and right ends of the bottom plate 11 and the inner walls on the left and right sides of the semi-circular top cover 5 are fixedly connected through brackets. The joints of multiple activated carbon filter meshes 13 are rotatably connected through a rotating shaft to form a Z-shaped folded shape.

[0019] A piston discharge port 15 is arranged outside the box body 4, and the piston discharge port 15 is located at the bottom end of the inclined surface of the screen 16; a rectangular strip-shaped piston baffle is used to be installed at the piston discharge port 15. When the piston baffle is removed, the particulate materials larger than the mesh holes at the screen 16 inside the box body 4 can be poured out of the box body 4.

[0020] The semi-circular top cover 5 and the box body 4 are fixed by bolts. The outer side of the screw end of the screw feeder 3 is connected with a driving motor; the screw feeder 3 is driven to work by the driving motor on the outside, and the feed production raw materials are pushed from the sleeve into the box body 4 by the spiral blades on the screw.

[0021] The lifting motor 7 drives the upper pressing plate 10 to move up and down directly above the bottom plate 11 through the lifting shaft 9; adjacent two activated carbon filter meshes 13 are rotatably connected through a hinge shaft and combined to form a Z-shaped folded structure. The topmost activated carbon filter mesh 13 and the upper pressing plate 10 are rotatably connected through a rotating shaft, while the bottom end of the lowermost activated carbon filter mesh 13 and the bottom plate 11 are rotatably connected through a rotating shaft;

[0022] Its lifting motor 7 drives the upper pressure plate 10 to move up and down through the lifting shaft 9. When the upper pressure plate 10 moves downward, the spring columns 13 are in a compressed state, and several activated carbon filters 13 between the upper pressure plate 10 and the bottom plate 11 will be compressed. When the lifting shaft 9 drives the upper pressure plate 10 to pull upward, multiple activated carbon filters 13 will be pulled open. Through the repeated up and down opening and closing movements of the multiple activated carbon filters 13 on the inner top surface of the box body 4, when the dust particles during the screening and falling process are drawn upward by the exhaust fan 8, the dust particles can fully contact the multiple activated carbon filters 13, improving the adsorption efficiency of the dust particles.

[0023] Working principle:

[0024] In the structure of this device, the raw materials for feed production are put in from the feed hopper 2. Under the action of the screw feeder 3, the raw materials are sent into the box body 4 and fall on the screen 16. Through screening by the screen 16, those that meet the mesh aperture size fall from the bottom discharge hopper 6, and those that do not meet the mesh aperture size slide down along the screen 16 to one side of the inner wall of the box body 4. After opening the rectangular strip-shaped piston baffle at the piston outlet 15, the particulate materials larger than the mesh holes at the screen 16 inside the box body 4 can be poured out from the box body 4;

[0025] During the screening process of the raw materials falling into the box body 4, both the exhaust fan 8 and the lifting motor 7 are externally powered and in a working state. The exhaust fan 8 is located directly above the upper pressure plate 10, and there are multiple grid plates 14 on the surface of the upper pressure plate 7, which facilitates the exhaust fan 8 to conduct exhaust work, enabling the air flow in the box body 4 to flow upward from the hollow areas between the bottom plates 11, pass through the multiple activated carbon filters 13 in sequence, and then be drawn out by the exhaust fan 8 from the grid plates 14 of the upper pressure plate 7.

[0026] And the lifting motor 7 drives the upper pressure plate 10 to perform repeated up and down movements through the lifting shaft 9. When the lifting shaft 9 drives the upper pressure plate 10 to pull upward, multiple activated carbon filters 13 will be pulled open. Through the repeated up and down opening and closing movements of the multiple activated carbon filters 13 on the inner top surface of the box body 4, when the dust particles during the screening and falling process are drawn upward by the exhaust fan 8, the dust particles can fully contact the multiple activated carbon filters 13, improving the adsorption efficiency of the dust particles.

[0027] Thus, the entire device structure realizes the function of dust removal during the screening of the particle size of the raw materials.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feed production raw material screening and dust removal device, comprising a frame (1), a feed hopper (2) and a screw feeder (3), characterized in that: A box body (4) is installed at the top end of the frame (1), a semicircular top cover (5) is provided at the top end of the box body (4), a screw feeder (3) is connected to one end of the box body (4), a feed hopper (2) is installed at the top of the sleeve where the screw of the screw feeder (3) is located, an inclined screen (16) is provided inside the box body (4), a discharge hopper (6) is connected to the bottom end of the box body (4), a lifting motor (7) is installed at the center of the top end of the semicircular top cover (5), exhaust fans (8) are installed on both sides of the lifting motor (7), and the bottom end of the lifting motor (7) is connected to an adsorption filtering mechanism through a lifting shaft (9); The adsorption and filtering mechanism comprises an upper pressing plate (10), a bottom plate (11), a spring column (12), a plurality of activated carbon filters (13) and a grid plate (14), wherein the bottom end of the lifting shaft (9) is connected to the central surface of the upper pressing plate (10), a plurality of air-permeable grid plates (14) are arranged on the upper pressing plate (10), the upper pressing plate (10) and the bottom plate (11) are connected via a plurality of spring columns (12), the left and right ends of the bottom plate (11) and the left and right inner walls of the semicircular top cover (5) are fixedly connected via brackets, and the joints of the plurality of activated carbon filters (13) are connected by rotating shafts to form a Z-shaped folded shape.

2. A feed production raw material screening and dust removal device according to claim 1, characterized in that: The outer side of the box body (4) is provided with a piston discharge port (15), and the piston discharge port (15) is located at the bottom end of the inclined surface of the screen (16).

3. A feed production raw material screening and dust removal device according to claim 1, characterized in that: The semicircular top cover (5) and the box body (4) are fixed by bolts, and a driving motor is connected to the outer side of the screw end of the screw feeder (3).

4. A feed production raw material screening and dust removal device according to claim 1, characterized in that: The lifting motor (7) drives the upper pressing plate (10) to move up and down directly above the bottom plate (11) via the lifting shaft (9).

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