Coal gangue processing and screening device

Abstract

The utility model discloses a coal gangue processing and screening device, including operation cylinder, the inner wall rotation of operation cylinder is connected with conical screen cylinder and half conical cylinder, the surface of conical screen cylinder is equipped with a plurality of first screening hole, the surface of half conical cylinder is equipped with a plurality of second screening hole, the inner wall fixed connection of operation cylinder has the feeding cylinder, the bottom fixed connection of feeding cylinder has conical box. The utility model conical screen cylinder rotates and carries out first screening operation through a plurality of first screening hole, and coal gangue block falls into half conical cylinder, and the inner surface contact of cam rotation and U -shaped board makes U -shaped board and rack reciprocating sliding in operation cylinder inner wall, and rack movement drives second outer race ring reciprocating rotation, realizes the swing effect of half conical cylinder, realizes second screening effect through a plurality of second screening hole, and the material after screening falls into third inclined plate and is discharged after collection, realizes multilayer screening effect, and saves the space occupied.

Description

Technical Field

[0001] This utility model relates to the field of coal industry technology, and in particular to a coal gangue processing and screening device. Background Technology

[0002] Coal gangue is a solid waste discharged during the coal mining and washing processes. It is a blackish-gray rock with a low carbon content and harder than coal that is associated with coal seams during the coal formation process. It includes gangue from tunneling, gangue extracted from the roof, floor and interlayers during mining, and gangue from coal washing.

[0003] After mining, coal gangue blocks need to be screened due to their different sizes. Existing screening devices are usually ground-mounted drum screens, which can only achieve one screening at a time and occupy a large space. To solve the above problems, a coal gangue processing and screening device is proposed. Utility Model Content

[0004] The purpose of this utility model is to solve the problems raised by the prior art by proposing a coal gangue processing and screening device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A coal gangue processing and screening device includes an operating cylinder. A conical screen cylinder and a semi-conical cylinder are rotatably connected to the inner wall of the operating cylinder. The surface of the conical screen cylinder has a plurality of first screening holes, and the surface of the semi-conical cylinder has a plurality of second screening holes. A feed cylinder is fixedly connected to the inner wall of the operating cylinder, and a conical box is fixedly connected to the bottom end of the feed cylinder. The surface of the conical box is rotatably connected to the surface of the conical screen cylinder. A screening and sorting mechanism is provided on the surface of the operating cylinder.

[0007] Preferably, the screening and sorting mechanism includes a motor fixedly connected to the surface of the operating cylinder, the output end of the motor passing through the inner wall of the operating cylinder and fixedly connected to a drive shaft, a gear fixedly connected to the surface of the drive shaft, and a first external gear ring fixedly connected to the surface of the conical screen cylinder, the gear meshing with the first external gear ring.

[0008] Furthermore, a protective baffle is fixedly connected to the surface of the feed cylinder, the inner wall of the protective baffle is rotatably connected to the surface of the conical screen cylinder, and an L-shaped plate is fixedly connected to the surface of the protective baffle, the inner wall of the L-shaped plate is rotatably connected to the surface of the drive shaft.

[0009] Preferably, a cam is fixedly connected to the surface of the drive shaft, a U-shaped plate is slidably connected to the inner wall of the operating cylinder, a rack is fixedly connected to the lower surface of the U-shaped plate, and the cam is installed inside the U-shaped plate.

[0010] Furthermore, a second external gear ring is fixedly connected to the surface of the semi-conical cylinder, the second external gear ring meshes with the rack, and a first sealing plate and a second sealing plate are rotatably connected to the inner wall of the operating cylinder.

[0011] Preferably, a first inclined plate and a second inclined plate are fixedly connected to the surface of the operating cylinder, a discharge hole is opened on the inner wall of the operating cylinder, and a third inclined plate is fixedly connected to the inner wall of the discharge hole.

[0012] The beneficial effects of this utility model are as follows:

[0013] The conical screen cylinder rotates to perform the first screening operation through multiple first screening holes. Coal gangue blocks fall into the semi-conical cylinder. The cam rotates and contacts the inner surface of the U-shaped plate, causing the U-shaped plate and the rack to slide back and forth on the inner wall of the operating cylinder. The rack's movement drives the second outer gear ring to rotate back and forth, achieving the oscillating effect of the semi-conical cylinder. Through multiple second screening holes, the second screening effect is achieved. The screened material falls into the third inclined plate for collection and discharge. The advantage of this is that it achieves a multi-layer screening effect and saves space. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a coal gangue processing and screening device proposed in this utility model;

[0015] Figure 2 This is a cross-sectional view of the operating cylinder in a coal gangue processing and screening device proposed in this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the conical screen cylinder and the semi-conical cylinder in a coal gangue processing and screening device proposed in this utility model;

[0017] Figure 4 This utility model proposes a coal gangue processing and screening device. Figure 3 Enlarged structural diagram at point A;

[0018] Figure 5 This is a three-dimensional structural diagram of the second outer gear ring in a coal gangue processing and screening device proposed in this utility model.

[0019] In the diagram: 1. Operating cylinder; 2. Feed cylinder; 3. First sealing plate; 4. First inclined plate; 5. Third inclined plate; 6. Second inclined plate; 7. Second sealing plate; 8. First screening hole; 9. Conical screen cylinder; 10. Motor; 11. Semi-conical cylinder; 12. Second screening hole; 13. Conical box; 14. First external gear ring; 15. Protective baffle; 16. Second external gear ring; 17. Rack; 18. U-shaped plate; 19. Gear; 20. Cam; 21. L-shaped plate; 22. Drive shaft; 23. Discharge hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-5 A coal gangue processing and screening device includes an operating cylinder 1. A conical screen cylinder 9 and a semi-conical cylinder 11 are rotatably connected to the inner wall of the operating cylinder 1. The surface of the conical screen cylinder 9 is provided with a plurality of first screening holes 8, and the surface of the semi-conical cylinder 11 is provided with a plurality of second screening holes 12. A feed cylinder 2 is fixedly connected to the inner wall of the operating cylinder 1. A conical box 13 is fixedly connected to the bottom end of the feed cylinder 2. The surface of the conical box 13 is rotatably connected to the surface of the conical screen cylinder 9. A screening and classification mechanism is provided on the surface of the operating cylinder 1.

[0022] By setting a conical screen cylinder 9, the first screening operation is performed by rotating through the first screening hole 8. By setting a semi-conical cylinder 11, coal gangue blocks falling from multiple first screening holes 8 are received. By setting a second screening hole 12, a second screening operation is performed. By setting a conical box 13, the coal gangue blocks fed by the feed cylinder 2 are sent into the conical screen cylinder 9. The inner wall span of the first screening hole 8 is larger than the inner wall span of the second screening hole 12, so as to achieve the effect of screening the size of coal gangue blocks multiple times.

[0023] In this utility model, reference is made to Figure 3 and Figure 4 The screening and sorting mechanism includes a motor 10 fixedly connected to the surface of the operating cylinder 1. The output end of the motor 10 passes through the inner wall of the operating cylinder 1 and is fixedly connected to a drive shaft 22. A gear 19 is fixedly connected to the surface of the drive shaft 22. A first external gear ring 14 is fixedly connected to the surface of the conical screen cylinder 9. The gear 19 meshes with the first external gear ring 14.

[0024] By setting up motor 10, starting motor 10 drives drive shaft 22 to rotate, and by setting up gear 19, the first external gear ring 14 and the conical screen cylinder 9 rotate as a whole.

[0025] In this utility model, reference is made to Figure 3 and Figure 4 A protective baffle 15 is fixedly connected to the surface of the feed cylinder 2. The inner wall of the protective baffle 15 is rotatably connected to the surface of the conical screen cylinder 9. An L-shaped plate 21 is fixedly connected to the surface of the protective baffle 15. The inner wall of the L-shaped plate 21 is rotatably connected to the surface of the drive shaft 22.

[0026] By setting up a protective baffle 15, the first external gear ring 14 and gear 19 are shielded and protected to prevent damage from coal gangue blocks. By setting up an L-shaped plate 21, the rotational support of the drive shaft 22 is kept stable.

[0027] In this utility model, reference Figure 4 A cam 20 is fixedly connected to the surface of the drive shaft 22, and a U-shaped plate 18 is slidably connected to the inner wall of the operating cylinder 1. A rack 17 is fixedly connected to the lower surface of the U-shaped plate 18, and the cam 20 is installed inside the U-shaped plate 18.

[0028] By setting cam 20, cam 20 rotates and contacts the surface of U-shaped plate 18. Under the action of the thrust of cam 20, U-shaped plate 18 and rack 17 reciprocate. By setting rack 17, the second outer gear ring 16 is rotated.

[0029] In this utility model, reference Figure 2 A second external gear ring 16 is fixedly connected to the surface of the semi-conical cylinder 11. The second external gear ring 16 meshes with the rack 17. A first sealing plate 3 and a second sealing plate 7 are rotatably connected to the inner wall of the operating cylinder 1.

[0030] By setting the second external gear ring 16, the semi-conical cylinder 11 is driven to swing, which facilitates the screening of coal gangue blocks inside the semi-conical cylinder 11. By setting the first sealing plate 3 and the second sealing plate 7, after the screening of coal gangue in the conical screen cylinder 9 and the semi-conical cylinder 11 is completed, the screened coal gangue blocks are opened and discharged.

[0031] In this utility model, reference Figure 3 The surface of the operating cylinder 1 is fixedly connected with a first inclined plate 4 and a second inclined plate 6. The inner wall of the operating cylinder 1 is provided with a discharge hole 23, and the inner wall of the discharge hole 23 is fixedly connected with a third inclined plate 5.

[0032] By setting the first inclined plate 4, coal gangue blocks discharged from the first sealing plate 3 are received; by setting the second inclined plate 6, coal gangue blocks discharged from the second sealing plate 7 are received; and by setting the third inclined plate 5, coal gangue blocks falling from multiple second screening holes 12 are received.

[0033] Working principle: The coal gangue blocks to be screened are fed into the conical box 13 through the feed cylinder 2. The conical box 13 feeds the coal gangue blocks into the conical screen cylinder 9. The control cylinder 1 is equipped with a controller and a power supply. The controller controls the start and stop of the motor 10, and the power supply provides power. When the motor 10 is started, the output end of the motor 10 drives the drive shaft 22 to rotate. The rotation of the drive shaft 22 drives the gear 19 and cam 20 to rotate. The gear 19 drives the conical screen cylinder 9 to rotate through the first external gear ring 14. The conical screen cylinder 9 rotates and performs the first screening operation through multiple first screening holes 8. The coal gangue blocks fall into the semi-conical cylinder 11. The cam 20 rotates and interacts with the U-shaped... The inner surface of plate 18 contacts the U-shaped plate 18, which slides back and forth on the inner wall of the operating cylinder 1 under the action of thrust. The movement of U-shaped plate 18 drives rack 17 to move back and forth, and the movement of rack 17 drives second outer gear ring 16 to rotate back and forth, realizing the swinging effect of semi-conical cylinder 11. Through multiple second screening holes 12, a second screening effect is achieved. The screened material falls into the third inclined plate 5 for collection and discharge. Coal gangue blocks in conical screen cylinder 9 are discharged by rotating to open the first sealing plate 3, and coal gangue blocks in semi-conical cylinder 11 are discharged by rotating to open the second sealing plate 7. Through the above structure, a multi-layer screening effect is achieved, saving space.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A coal gangue processing and screening device, comprising an operating cylinder, characterized in that, The inner wall of the operating cylinder is rotatably connected to a conical screen cylinder and a semi-conical cylinder. The surface of the conical screen cylinder is provided with a plurality of first screening holes, and the surface of the semi-conical cylinder is provided with a plurality of second screening holes. The inner wall of the operating cylinder is fixedly connected to a feeding cylinder, and the bottom end of the feeding cylinder is fixedly connected to a conical box. The surface of the conical box is rotatably connected to the surface of the conical screen cylinder. The surface of the operating cylinder is provided with a screening and sorting mechanism.

2. The coal gangue processing and screening device according to claim 1, characterized in that, The screening and sorting mechanism includes a motor fixedly connected to the surface of the operating cylinder. The output end of the motor passes through the inner wall of the operating cylinder and is fixedly connected to a drive shaft. A gear is fixedly connected to the surface of the drive shaft. A first external gear ring is fixedly connected to the surface of the conical screen cylinder. The gear meshes with the first external gear ring.

3. The coal gangue processing and screening device according to claim 1, characterized in that, A protective baffle is fixedly connected to the surface of the feed cylinder. The inner wall of the protective baffle is rotatably connected to the surface of the conical screen cylinder. An L-shaped plate is fixedly connected to the surface of the protective baffle. The inner wall of the L-shaped plate is rotatably connected to the surface of the drive shaft.

4. The coal gangue processing and screening device according to claim 2, characterized in that, A cam is fixedly connected to the surface of the drive shaft, a U-shaped plate is slidably connected to the inner wall of the operating cylinder, a rack is fixedly connected to the lower surface of the U-shaped plate, and the cam is installed inside the U-shaped plate.

5. The coal gangue processing and screening device according to claim 1, characterized in that, A second external gear ring is fixedly connected to the surface of the semi-conical cylinder, and the second external gear ring meshes with the rack. A first sealing plate and a second sealing plate are rotatably connected to the inner wall of the operating cylinder.

6. The coal gangue processing and screening device according to claim 1, characterized in that, The surface of the operating cylinder is fixedly connected to a first inclined plate and a second inclined plate, and the inner wall of the operating cylinder is provided with a discharge hole, and the inner wall of the discharge hole is fixedly connected to a third inclined plate.

Images