Coal mine vibrating screen with anti-blocking function

Abstract

The utility model discloses a coal mine vibrating screen with prevent function that blocks up, including bottom plate, the bottom plate rotationally connected with first casing, the first casing is slidably connected with second casing in, the second casing is fixedly connected with the screen in, the second casing is fixedly connected with the frame, the frame is seted up with the groove, the first casing is fixedly connected with motor, the motor output is fixedly connected with the rod body. The utility model discloses motor drive rod body drive cylinder annular movement, with the contact of cylinder and groove makes frame drive second casing transverse reciprocating movement, and coal completes screening in the process of sliding in second casing through screen, simultaneously, when second casing drives screen movement, the brush can clean screen top in real time, can continuously remove the coal cinder of sticking, effectively avoid the coal block because of high moisture and stick up the mesh, guarantee screen long-term unobstructed, maintain stable screening efficiency, adapt to the continuous screening demand of high moisture coal block.

Description

Technical Field

[0001] This utility model relates to the field of mining-related technologies, and in particular to a coal mine vibrating screen with anti-clogging function. Background Technology

[0002] Vibrating screens in coal mines are key pieces of equipment in coal processing, mainly used for grading, dewatering, desliming, and demediuming of mined raw coal. Through the vibration force generated by a vibrating motor, the material reciprocates on the screen surface, separating coal of different particle sizes according to the screen aperture size. This achieves coal grading by particle size while removing moisture, mud, and media from the coal, improving coal quality and providing qualified raw materials for subsequent processing and utilization.

[0003] The existing announcement number is CN221063471U, which describes an anti-clogging vibrating coal screening machine. The top rod above the horizontal bar passes through the mesh of the vibrating screen plate. When the mesh of the screen plate is blocked by coal, the top rod will push the blocked coal out of the mesh of the vibrating screen plate, effectively preventing the screen plate from becoming blocked and maintaining the efficiency of the screen plate in screening coal.

[0004] Although existing coal mine vibrating screens can screen coal blocks, if the coal blocks have a high moisture content, they are prone to sticking to the surface of the screen plate or inside the mesh. The mechanical pushing of the top rod alone is not enough to completely clean the sticky coal slag. Long-term accumulation will still lead to mesh blockage and affect screening efficiency. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a coal mine vibrating screen with anti-clogging function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A coal mine vibrating screen with anti-clogging function includes a base plate, a first housing rotatably connected to the base plate, a second housing slidably connected inside the first housing, a screen plate fixedly connected inside the second housing, a frame fixedly connected to the second housing, the frame having a groove, a motor fixedly connected to the first housing, a rod fixedly connected to the output end of the motor, a column fixedly connected to the rod, the column movably penetrating through the groove, and a brush fixedly connected to the first housing, the brush contacting the screen plate.

[0008] Preferably, a plate is fixedly connected to one end and the other end of the base plate, and both plates have multiple holes, some of which are movably penetrated by bolts, and the multiple bolts are threadedly connected to the first housing.

[0009] Preferably, the first housing has an opening, which is positioned vertically opposite to the mesh plate.

[0010] Preferably, the base plate is fixedly connected to a slide rail, and each end of the slide rail has a side plate. The slide rail is placed vertically and vertically corresponding to the mesh plate.

[0011] Preferably, both the first housing and the second housing are U-shaped.

[0012] Preferably, the first housing is fixedly connected to two sleeves, and the two sleeves are slidably connected to the frame.

[0013] Preferably, the arc formed by the two rows of holes is centered on the rotation point of the base plate and the first housing.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. Through the cooperation of the base plate, first shell, second shell, screen plate, brush body, frame, trough, sleeve, motor, rod and column, the motor drives the rod to move the column in a ring. With the contact between the column and the trough, the frame drives the second shell to move laterally back and forth. Coal is screened by the screen plate during the sliding process of the second shell. At the same time, when the second shell moves the screen plate, the brush can clean the top of the screen plate in real time, which can continuously remove the sticky coal slag, effectively prevent coal lumps from sticking to the mesh due to high moisture content, ensure the screen plate is unobstructed for a long time, maintain stable screening efficiency, and meet the continuous screening needs of high moisture coal lumps.

[0016] 2. Through the cooperation between the base plate, the first shell, the plates, the holes, and the bolts, and by the rotational connection between the first shell and the base plate, and by connecting the bolts threaded to the other end of the first shell to the holes at different heights on the two plates, the tilt angle of the first shell can be flexibly adjusted. To a certain extent, the screening slope can be adjusted according to the size of the coal block, the moisture content, and the screening requirements: for larger coal blocks or materials with low moisture content, increasing the tilt angle can speed up the sliding speed and improve screening efficiency; for fine particles or coal blocks with high moisture content that are prone to sticking, decreasing the tilt angle can extend the screening time and ensure more thorough screening. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a coal mine vibrating screen with anti-clogging function proposed in this utility model;

[0018] Figure 2 for Figure 1 Structural diagram of the frame, trough, and sleeve;

[0019] Figure 3 for Figure 1 A schematic diagram of the structure of the first shell, the bore, and the bolts;

[0020] Figure 4 for Figure 1 Schematic diagram of the middle sleeve, motor, and column structure;

[0021] Figure 5 for Figure 1 A schematic diagram of the structure of the second shell, frame, and tank.

[0022] In the diagram: 1. Base plate; 2. First shell; 3. Second shell; 4. Mesh plate; 5. Brush body; 6. Frame; 7. Groove; 8. Sleeve; 9. Motor; 10. Rod; 11. Column; 12. Plate; 13. Hole; 14. Bolt; 15. Opening; 16. Slide. Detailed Implementation

[0023] 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.

[0024] Example 1, referring to Figures 1 to 5 A coal mine vibrating screen with anti-clogging function includes a base plate 1, a first housing 2 rotatably connected to the base plate 1, a second housing 3 slidably connected inside the first housing 2, allowing the second housing 3 to move laterally within the first housing 2, a mesh plate 4 fixedly connected inside the second housing 3, the mesh size of the mesh plate 4 being selectable according to screening requirements, a frame 6 fixedly connected to the second housing 3, the frame 6 having a groove 7, a motor 9 fixedly connected to the first housing 2, the model of the motor 9 being selected according to actual working requirements, a rod 10 fixedly connected to the output end of the motor 9, a column 11 fixedly connected to the rod 10, and the column 11 movably passing through the groove. The first housing 2 is fixedly connected to a brush body 5, which is in contact with the screen plate 4. The brush body 5 is made of wear-resistant elastic material, and its bottom is in close contact with the upper surface of the screen plate 4 to ensure the cleaning effect. The motor 9 drives the rod body 10 to make the column 11 move in a circle. The column 11 contacts the trough body 7 and drives the frame body 6 and the second housing 3 to move laterally back and forth. Coal is screened by the screen plate 4 while the second housing 3 slides. At the same time, when the second housing 3 moves the screen plate 4, the brush body 5 cleans the top of the screen plate 4 in real time, continuously removes the sticky coal slag, avoids high moisture coal blocks from clogging the holes, ensures the screen plate 4 is unobstructed, maintains the screening efficiency, and is suitable for continuous screening of high moisture coal blocks.

[0025] In this embodiment, a plate 12 is fixedly connected to one end and the other end of the base plate 1. Both plates 12 have multiple holes 13, some of which are movably threaded with bolts 14. These bolts 14 are threaded into the first housing 2, and the angle is fixed by the cooperation of the bolts 14 with the different holes 13. The first housing 2 has an opening 15, which is placed vertically opposite to the screen plate 4 to ensure that the screened coal can fall smoothly. A slide rail 16 is fixedly connected to the base plate 1. The slide rail 16 has side plates at one end and the other end. The slide rail 16 connects to the screen plate... 4. The upper and lower shells are placed in a corresponding manner to facilitate the receiving and discharge of the screened coal. The first shell 2 and the second shell 3 are both U-shaped, which makes it easy for the coal to move into the second shell 3 at one end and out at the other end of the second shell 3. The first shell 2 is fixedly connected to two sleeves 8, which are slidably connected to the frame 6 to ensure the stability of the frame 6 when it moves laterally back and forth. The arc formed by the two rows of holes 13 is centered on the rotation point of the base plate 1 and the first shell 2, which ensures that the bolts 14 can be inserted into the holes 13 at different heights when the first shell 2 rotates, so as to achieve smooth angle adjustment.

[0026] The working principle of this embodiment is as follows: During use, based on the size of the coal block, its moisture content, and screening requirements, the first housing 2 is rotated on the base plate 1. After rotation, the bolts 14 of the first housing 2 are connected to the corresponding holes 13 of the two plates 12, allowing the first housing 2 to be placed at different tilt angles. After adjustment, the motor 9 is connected to an external power supply and drive device. The motor 9 then drives the rod 10 to move the column 11 in a circular motion. The column 11, due to its contact with the trough 7, moves the frame 6 laterally back and forth. The second shell 3 can then move synchronously with the frame 6. Coal is continuously poured into the second shell 3. By using the movement and tilting of the second shell 3, the coal can be screened. Some coal will pass through the screen plate 4, fall into the opening 15 of the first shell 2, and slide out in the slide 16. Coal that cannot pass through the screen plate 4 will be discharged from one end of the second shell 3. At the same time, as the second shell 3 moves, the screen plate 4 will continuously contact the brush body 5. The brush body 5 can continuously clean the screen plate 4 to prevent it from clogging.

[0027] 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 mine vibrating screen with anti-clogging function, comprising a base plate (1), characterized in that, The base plate (1) is rotatably connected to a first housing (2), and a second housing (3) is slidably connected inside the first housing (2). A mesh plate (4) is fixedly connected inside the second housing (3). A frame (6) is fixedly connected to the second housing (3). A groove (7) is opened in the frame (6). A motor (9) is fixedly connected to the first housing (2). A rod (10) is fixedly connected to the output end of the motor (9). A column (11) is fixedly connected to the rod (10). The column (11) moves through the groove (7). A brush (5) is fixedly connected to the first housing (2). The brush (5) is in contact with the mesh plate (4).

2. A coal mine vibrating screen with anti-clogging function according to claim 1, characterized in that, The base plate (1) is fixedly connected to a plate body (12) at one end and the other end. Both plates (12) have multiple holes (13). Some of the holes (13) are movably penetrated by bolts (14). The multiple bolts (14) are threadedly connected to the first housing (2).

3. A coal mine vibrating screen with anti-clogging function according to claim 1, characterized in that, The first housing (2) has an opening (15), which is placed vertically opposite to the mesh plate (4).

4. A coal mine vibrating screen with anti-clogging function according to claim 1, characterized in that, The base plate (1) is fixedly connected to a slide rail (16), and the slide rail (16) has side plates at one end and the other end. The slide rail (16) is placed vertically opposite to the mesh plate (4).

5. A coal mine vibrating screen with anti-clogging function according to claim 1, characterized in that, Both the first housing (2) and the second housing (3) are U-shaped.

6. A coal mine vibrating screen with anti-clogging function according to claim 1, characterized in that, The first housing (2) is fixedly connected to two sleeves (8), and the two sleeves (8) are slidably connected to the frame (6).

7. A coal mine vibrating screen with anti-clogging function according to claim 2, characterized in that, The arc formed by the two rows of holes (13) is centered on the rotation point of the base plate (1) and the first shell (2).

Images