Wet coal preparation device for coal mine
By introducing a buffer device and airbag structure into the wet coal preparation device of coal mines, the problem of damage caused by coal impact on the filter plate is solved, and effective protection of the filter plate and efficient progress of wet coal preparation is achieved.
Patent Information
- Application Number
- CN202421648768.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-12
AI Technical Summary
In the existing wet coal preparation device of coal mines, coal can easily cause deformation and damage to the filter plate when it hits the internal filter plate of the coal preparation frame, which will affect the wet selection effect.
A wet coal preparation device for coal mines is designed, using a buffer device and an airbag structure. A buffer device combined with a buffer plate and a spring slows down the coal drop speed. The airbag buffers the impact of coal above the filter plate to avoid direct contact.
It effectively avoids deformation and damage of the filter plate due to impact, ensures the normal progress of wet coal preparation, and improves the service life and wet selection efficiency of the coal preparation device.
Smart Images
Figure CN222918817U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal wet separation devices in coal mines, and particularly relates to a coal wet separation device in a coal mine. Background Art
[0002] The washing of coal belongs to the physical processing method of coal. Its basic principle is to separate according to the different physical and chemical properties of each component (clean coal, medium coal, gangue, pyrite) in raw coal. These physical and chemical properties are mainly density, hydrophilicity, hydrophobicity, color, hardness, shape, electromagnetic property, friction coefficient, elasticity, etc. When the sorting medium used in coal preparation is a fluid, it is called wet coal preparation. Coal preparation is coal washing, and coal washing is an indispensable process in the deep processing of coal. The coal directly mined from the mine is called raw coal. A lot of impurities are mixed in the raw coal during the mining process, and the quality of the coal is also different. The coal with small internal ash and the coal with large internal ash are mixed together. Coal washing is an industrial process of removing impurities from raw coal or classifying high-quality coal and low-quality coal.
[0003] The inventor found during the daily use of the coal separation device in the coal mine that when pouring coal into the inside of the coal separation frame for wet separation, the coal directly impacts the surface of the filter plate inside the coal separation frame. Then, the long-term impact will cause the filter plate to be deformed and damaged, and then the coal will fall from the surface of the filter plate to the bottom of the coal separation frame, which will cause the coal to be unable to be wet-separated inside the coal separation frame, thus causing an impact. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and provide a coal wet separation device in a coal mine.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a coal wet separation device in a coal mine, including a wet separation frame, a support is fixedly connected to the upper top of the wet separation frame, a spray pipe is inserted into the inside of the support, spray holes are fixedly connected to the surface of the spray pipe, a filter plate is fixedly connected to the inside of the wet separation frame, a feeding frame is fixedly connected to the upper top of the wet separation frame, a buffer device is arranged inside the feeding frame, a turnover device is arranged inside the wet separation frame, the buffer device includes a buffer plate rotatably connected inside the feeding frame, a first spring is fixedly connected to the inner wall of the feeding frame, and the other end of the first spring is fixedly connected to the buffer plate.
[0006] The effects achieved by the above components are as follows: Under the action of the buffer plate and the first spring, when pouring coal into the wet separation box, buffering can be carried out, thus avoiding the phenomenon that the coal impacts and damages the filter plate. When wet separating coal is required, pour the coal into the inside of the feeding frame, connect the spray pipe to the water pump, so that the water flows out from the inside of the spray head through the spray pipe, and then spray and wash the coal, thereby washing away the impurities on the surface of the coal, and thus achieving the effect of wet separating coal.
[0007] Preferably, a cushion block is fixedly connected to the surface of the buffer plate, and the cushion block is a rubber plate.
[0008] The effects achieved by the above components are as follows: Under the action of the cushion block, the coal does not directly contact the buffer plate, avoiding the phenomenon that the buffer plate deforms due to rigid contact.
[0009] Preferably, an airbag is fixedly connected to the upper top of the filter plate, and the inside of the airbag is filled with gas.
[0010] The effects achieved by the above components are as follows: Under the action of the airbag, the coal does not directly contact the filter plate, avoiding the phenomenon that the filter plate is impacted and damaged.
[0011] Preferably, a second spring is fixedly connected to the inside of the airbag, and both ends of the second spring are fixedly connected to the inner wall of the airbag respectively.
[0012] The effects achieved by the above components are as follows: Under the action of the second spring, the airbag can quickly reset after being impacted and deformed, thus achieving the reset effect. When wet separating coal, pour the coal into the inside of the feeding frame. Under the action of the buffer plate and the first spring, the falling speed of the coal can be slowed down. Under the action of the cushion block, the coal does not directly contact the buffer plate, avoiding the phenomenon that the buffer plate deforms due to rigid contact. Under the action of the airbag, the coal does not directly contact the filter plate, avoiding the phenomenon that the filter plate is impacted and damaged. Under the action of the second spring, the airbag can quickly reset after being impacted and deformed, thus achieving the reset effect, and thus achieving the buffering effect.
[0013] Preferably, the flipping device includes a motor fixedly connected to the side of the wet separation box. A rectangular groove is provided on the inner wall of the wet separation box. A threaded rod is rotatably connected inside the rectangular groove. The output end of the motor is fixedly connected to the threaded rod. A slider is threadedly connected to the surface of the threaded rod, and a triangular block is fixedly connected to the side of the slider.
[0014] The effects achieved by the above components are as follows: Under the action of the triangular block, the coal on the surface of the filter plate is flipped, so that all the impurities on the surface of the coal are washed clean, and thus achieving the effect of flipping the coal.
[0015] Preferably, a fixing rod is fixedly connected inside the rectangular groove, and a slider is slidably connected to the surface of the fixing rod.
[0016] The effect achieved by the above components is that under the action of the fixing rod, the triangular block can move smoothly inside the wet separation box.
[0017] Preferably, a rectangular strip is fixedly connected to the surface of the triangular block, and the rectangular strip is a rubber strip.
[0018] The effect achieved by the above components is that under the action of the rectangular strip, when the triangular block flips the coal, it will not directly contact the coal, thereby achieving the phenomenon of extending the service life of the triangular block.
[0019] Preferably, a brush is fixedly connected to the bottom of the triangular block, and the brush is closely attached to the surface of the filter plate.
[0020] The effect achieved by the above components is that under the action of the brush closely attached to the surface of the filter plate, the bristles can be inserted into the mesh holes of the filter plate, and then the impurities inside the mesh holes can be pushed out, thereby achieving the cleaning effect. When wet separating coal, start the motor to make the threaded rod rotate, and then drive the slider to move. Under the combined action of the fixing rod, the triangular block can move smoothly inside the wet separation box. During the movement of the triangular block, under the action of the rectangular strip, when the triangular block flips the coal, it will not directly contact the coal, thereby achieving the phenomenon of extending the service life of the triangular block. Under the action of the brush closely attached to the surface of the filter plate, the bristles can be inserted into the mesh holes of the filter plate, and then the impurities inside the mesh holes can be pushed out, thereby achieving the cleaning effect, and thus achieving the flipping effect.
[0021] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.
[0022] In the present utility model, by setting a buffer device, when wet separating coal, pour the coal into the inside of the feed frame. Under the action of the buffer plate and the first spring, the falling speed of the coal can be slowed down. Under the action of the cushion block, the coal will not directly contact the buffer plate, avoiding the phenomenon that the buffer plate deforms due to rigid contact. Under the action of the airbag, the coal will not directly contact the filter plate, avoiding the phenomenon that the filter plate is damaged by impact. Under the action of the second spring, the airbag can be quickly reset after being deformed by impact, thereby achieving the reset effect and thus achieving the buffer effect, and solving the problem that the filter plate is deformed and damaged due to long-term impact of coal on the filter plate, resulting in the inability to wet separate coal. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 is a three-dimensional structural schematic diagram of a coal mine wet coal separation device proposed by the present utility model;
[0024] Figure 2 The figure shows a schematic diagram of a buffer device for a wet coal separation device in a coal mine according to the present utility model;
[0025] Figure 3 The figure shows a partial schematic diagram of a flipping device for a wet coal separation device in a coal mine according to the present utility model;
[0026] Figure 4 The figure shows a schematic diagram of a flipping device for a wet coal separation device in a coal mine according to the present utility model.
[0027] Legend: 1. Wet separation frame; 2. Buffer device; 21. Airbag; 22. Second spring; 23. First spring; 24. Buffer plate; 25. Cushion block; 3. Flipping device; 31. Motor; 32. Threaded rod; 33. Triangular block; 34. Brush; 35. Rectangular strip; 36. Fixed rod; 4. Filter plate; 5. Support; 6. Spray pipe; 7. Feed frame. Detailed implementation manners
[0028] Example 1, as Figures 1-4 shown, a wet coal separation device in a coal mine includes a wet separation frame 1. A support 5 is fixedly connected to the upper top of the wet separation frame 1. A spray pipe 6 is inserted into the support 5. Spray holes are fixedly connected to the surface of the spray pipe 6. A filter plate 4 is fixedly connected to the inside of the wet separation frame 1. A feed frame 7 is fixedly connected to the upper top of the wet separation frame 1. A buffer device 2 is arranged inside the feed frame 7. A flipping device 3 is arranged inside the wet separation frame 1. When wet coal separation is required, the coal is poured into the inside of the feed frame 7. The spray pipe 6 is connected to a water pump, so that water flows out from the inside of the spray head through the spray pipe 6, and then the coal is sprayed and washed, so as to wash away the impurities on the surface of the coal, and thus the function of wet coal separation is achieved.
[0029] Refer to Figure 2, the buffer device 2 includes a buffer plate 24 rotatably connected inside the feeding frame 7. The inner wall of the feeding frame 7 is fixedly connected with a first spring 23, and the other end of the first spring 23 is fixedly connected with the buffer plate 24. Under the action of the buffer plate 24 and the first spring 23, when pouring coal into the wet separation frame 1, buffering can be carried out, thus avoiding the phenomenon that the coal impacts and damages the filter plate 4. When wet separating coal is required, pour the coal into the inside of the feeding frame 7, connect the spray pipe 6 to the water pump, so that water flows out from the inside of the spray head through the spray pipe 6, and then spray-wash the coal, thereby washing away the impurities on the surface of the coal, and thus achieving the effect of wet separating coal. The surface of the buffer plate 24 is fixedly connected with a cushion block 25, and the cushion block 25 is a rubber plate. Under the action of the cushion block 25, the coal will not directly contact the buffer plate 24, avoiding the phenomenon that the buffer plate 24 deforms due to rigid contact. The top of the filter plate 4 is fixedly connected with an airbag 21, and the inside of the airbag 21 is filled with gas. Under the action of the airbag 21, the coal will not directly contact the filter plate 4, avoiding the phenomenon that the filter plate 4 is impacted and damaged. The inside of the airbag 21 is fixedly connected with a second spring 22, and both ends of the second spring 22 are fixedly connected to the inner wall of the airbag 21. Under the action of the second spring 22, the airbag 21 can quickly reset after being impacted and deformed, and thus achieving the reset effect. When wet separating coal, pour the coal into the inside of the feeding frame 7. Under the action of the buffer plate 24 and the first spring 23, the falling speed of the coal can be slowed down. Under the action of the cushion block 25, the coal will not directly contact the buffer plate 24, avoiding the phenomenon that the buffer plate 24 deforms due to rigid contact. Under the action of the airbag 21, the coal will not directly contact the filter plate 4, avoiding the phenomenon that the filter plate 4 is impacted and damaged. Under the action of the second spring 22, the airbag 21 can quickly reset after being impacted and deformed, and thus achieving the reset effect, thereby achieving the buffering effect.
[0030] Refer to Figures 3-4, the flipping device 3 includes a motor 31 fixedly connected to the side of the wet separation box 1. A rectangular groove is provided on the inner wall of the wet separation box 1, and a threaded rod 32 is rotatably connected inside the rectangular groove. The output end of the motor 31 is fixedly connected to the threaded rod 32. A slider is threadedly connected to the surface of the threaded rod 32, and a triangular block 33 is fixedly connected to the side of the slider. Under the action of the triangular block 33, the coal on the surface of the filter plate 4 is flipped, so that all the impurities on the surface of the coal are cleaned, and thus the function of flipping the coal is achieved. A fixed rod 36 is fixedly connected inside the rectangular groove, and a slider is slidably connected to the surface of the fixed rod 36. Under the action of the fixed rod 36, the triangular block 33 can move smoothly inside the wet separation box 1. A rectangular strip 35 is fixedly connected to the surface of the triangular block 33, and the rectangular strip 35 is a rubber strip. Under the action of the rectangular strip 35, when the triangular block 33 flips the coal, it will not directly contact the coal, and thus the service life of the triangular block 33 is prolonged. A brush 34 is fixedly connected to the bottom of the triangular block 33, and the brush 34 is closely attached to the surface of the filter plate 4. Under the action of the brush 34 being closely attached to the surface of the filter plate 4, the bristles can be inserted into the mesh holes of the filter plate 4, and thus the impurities inside the mesh holes can be pushed out, and thus the cleaning function is achieved. When wet separating coal, the motor 31 is started to make the threaded rod 32 rotate, and then the slider is driven to move. Under the combined action of the fixed rod 36, the triangular block 33 can move smoothly inside the wet separation box 1. During the movement of the triangular block 33, under the action of the rectangular strip 35, when the triangular block 33 flips the coal, it will not directly contact the coal, and thus the service life of the triangular block 33 is prolonged. Under the action of the brush 34 being closely attached to the surface of the filter plate 4, the bristles can be inserted into the mesh holes of the filter plate 4, and thus the impurities inside the mesh holes can be pushed out, and thus the cleaning function is achieved, thereby achieving the flipping function.
[0031] Working principle: When the coal wet separation device in coal mines is needed and wet coal separation is to be carried out, pour the coal into the inside of the feeding frame 7. Connect the spray pipe 6 with a water pump, so that water flows out from the inside of the spray head through the spray pipe 6, and then spray-wash the coal, thus washing away the impurities on the surface of the coal, and thus achieving the effect of wet coal separation. When carrying out wet coal separation, pour the coal into the inside of the feeding frame 7. Under the action of the buffer plate 24 and the first spring 23, the falling speed of the coal can be slowed down. Under the action of the cushion block 25, the coal will not directly contact the buffer plate 24, avoiding the phenomenon that the buffer plate 24 deforms due to rigid contact. Under the action of the airbag 21, the coal will not directly contact the filter plate 4, avoiding the phenomenon that the filter plate 4 is damaged by impact. Under the action of the second spring 22, the airbag 21 can be quickly reset after being deformed by impact, and thus achieving the reset effect, and thus achieving the buffering effect. When wet coal separation is carried out, start the motor 31 to make the threaded rod 32 rotate, and then drive the slider to move. Under the cooperative action of the fixed rod 36, the triangular block 33 can move smoothly inside the wet separation frame 1. During the movement of the triangular block 33, under the action of the rectangular strip 35, when the triangular block 33 flips the coal, it will not directly contact the coal, and thus achieving the phenomenon of prolonging the service life of the triangular block 33. Under the action of the brush 34 closely attached to the surface of the filter plate 4, the bristles can be inserted into the mesh holes of the filter plate 4, and then the impurities inside the mesh holes can be pushed out, and thus achieving the cleaning effect, and thus achieving the flipping effect.
Claims
1. A wet coal separation device for a coal mine, comprising a wet separation frame (1), characterized in that: The upper top of the wet selection frame (1) is fixedly connected to a bracket (5), a spray pipe (6) is inserted into the interior of the bracket (5), and a spray hole is fixedly connected to the surface of the spray pipe (6), the interior of the wet selection frame (1) is fixedly connected to a filter plate (4), the upper top of the wet selection frame (1) is fixedly connected to a feed frame (7), a buffer device (2) is arranged inside the feed frame (7), and a flip device (3) is arranged inside the wet selection frame (1), the buffer device (2) comprises a buffer plate (24) rotatably connected to the interior of the feed frame (7), the inner wall of the feed frame (7) is fixedly connected to a first spring (23), and the other end of the first spring (23) is fixedly connected to the buffer plate (24).
2. The wet coal preparation device for coal mines according to claim 1, characterized in that: A cushion block (25) is fixedly connected to the surface of the buffer plate (24), and the cushion block (25) is a rubber plate.
3. The wet coal preparation device for coal mines according to claim 2, characterized in that: An air bag (21) is fixedly connected to the upper top of the filter plate (4), and the interior of the air bag (21) is filled with gas.
4. The wet coal preparation device for coal mines according to claim 3, characterized in that: A second spring (22) is fixedly connected inside the airbag (21), and two ends of the second spring (22) are respectively fixedly connected to the inner wall of the airbag (21).
5. The wet coal preparation device for coal mines according to claim 4, characterized in that: The turning device (3) comprises a motor (31) fixedly connected to the side of the wet selection frame (1); the inner wall of the wet selection frame (1) is provided with a rectangular groove, a threaded rod (32) is rotatably connected inside the rectangular groove, an output end of the motor (31) is fixedly connected to the threaded rod (32), a sliding block is threadedly connected to the surface of the threaded rod (32), and a triangular block (33) is fixedly connected to the side of the sliding block.
6. The wet coal preparation device for coal mines according to claim 5, characterized in that: A fixing rod (36) is fixedly connected inside the rectangular groove, and a sliding block is slidably connected to the surface of the fixing rod (36).
7. The wet coal preparation device for coal mines according to claim 6, characterized in that: A rectangular strip (35) is fixedly connected to the surface of the triangular block (33), and the rectangular strip (35) is a rubber strip.
8. The wet coal preparation device for coal mines according to claim 7, characterized in that: A brush (34) is fixedly connected to the bottom of the triangular block (33), and the brush (34) is closely attached to the surface of the filter plate (4).