Coal slime squeezing and dewatering device for coal cleaning plant
By introducing lifting and tilting mechanisms into the coal slime dewatering device, the problem of the coal slime being difficult to remove quickly after dewatering was solved, thus improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANMENXIA XINLONG NEW ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-17
AI Technical Summary
Existing coal slime dewatering devices are not convenient for quickly removing coal slime after dewatering, resulting in slow output and affecting production efficiency.
A coal slime pressing and dewatering device for a coal washing plant was designed. It adopts a lifting mechanism, a tilting mechanism and a filter screen. The threaded rod driven by the servo motor moves the threaded sleeve and the horizontal plate downward to press and dewater. The drive motor drives the rotating shaft and the dewatering frame to rotate 180 degrees to facilitate the discharge of coal slime.
It enables rapid discharge of dewatered coal slime, improving production efficiency and facilitating subsequent operations.
Smart Images

Figure CN224136243U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal slime dewatering technology, and in particular to a coal slime pressing and dewatering device for coal washing plants. Background Technology
[0002] Coal slime refers to the semi-solid material formed by the moisture content of coal powder. It is a product of coal production in coal washing plants. Due to its high moisture content and low calorific value, coal slime has low economic benefits. Therefore, coal washing plants have tried various methods to reduce the moisture content of coal slime and increase its calorific value. This requires the use of dewatering devices. Although the coal slime dewatering devices currently used can meet normal usage requirements, they still have defects in actual use. For example, the discharge of coal slime from the current dewatering devices is inconvenient. After the coal slime is dewatered, it is not easy to remove it quickly. The discharge is slow, which affects subsequent dewatering and results in low production efficiency. Improvements are needed. Therefore, a coal slime pressing and dewatering device for coal washing plants is proposed. Utility Model Content
[0003] To address the problem of slow and difficult removal of coal slime after dewatering, this invention provides a coal slime pressing and dewatering device for coal washing plants.
[0004] This utility model provides a coal slime pressing and dewatering device for a coal washing plant, which adopts the following technical solution:
[0005] A coal slime pressing and dewatering device for a coal washing plant includes a base plate, a column fixedly connected to the top right side of the base plate, a lifting mechanism provided in the inner cavity of the column, a top plate fixedly connected to one end of the lifting mechanism, a pressing plate fixedly connected to the bottom of the top plate, a vertical plate fixedly connected to the top of the base plate and to the left side of the column, a rotating shaft rotatably connected to the right side of the inner cavity of the vertical plate via a bearing, a dewatering frame fixedly connected to the left side of the rotating shaft, and a flipping mechanism provided on the surface of the rotating shaft.
[0006] The flipping mechanism includes a drive motor, which is fixedly installed at the bottom of the left side of the inner cavity of the upright plate. The output end of the drive motor is fixedly connected to a drive gear, and the outer surface of the rotating shaft is fixedly connected to a driven gear. The outer surface of the drive gear meshes with the outer surface of the driven gear.
[0007] By adopting the above technical solution, the rotating shaft and dewatering frame can be rotated 180 degrees, which facilitates the discharge of dewatered coal slime and subsequent coal slime dewatering, resulting in high production efficiency.
[0008] Optionally, the lifting mechanism includes a servo motor, which is fixedly installed at the bottom of the inner cavity of the column. A threaded rod is fixedly connected to the output end of the servo motor. A threaded sleeve is threadedly connected to the top of the outer surface of the threaded rod. A horizontal plate is fixedly connected to the top of the threaded sleeve. A support plate is fixedly connected to the bottom of the horizontal plate. The bottom of the support plate is fixedly connected to the top of the top plate.
[0009] By adopting the above technical solution, the coal slime inside the dewatering frame can be pressed and dewatered.
[0010] Optionally, a filter screen is fixedly connected to the inner surface of the dehydration frame, and water outlet holes are evenly opened at the bottom of the dehydration frame.
[0011] By adopting the above technical solution, it is easy to drain the water from the coal slurry.
[0012] Optionally, sliders are fixedly connected to the bottom of both sides of the threaded sleeve, and grooves for use with sliders are opened on both sides of the inner cavity of the column. The outer surface of the slider is slidably connected to the inner surface of the groove.
[0013] By adopting the above technical solution, the movement of the threaded sleeve can be guided and limited.
[0014] Optionally, the bottom of the extrusion plate is connected to a feed pipe, and a sealing cap is provided at the opening of the feed pipe.
[0015] By adopting the above technical solution, it is convenient to put coal slime into the dewatering frame for dewatering.
[0016] Optionally, a collection box is placed on the left side of the top of the base plate, and mounting holes are provided at the four corners of the top of the base plate.
[0017] By adopting the above technical solution, it is easy to collect the extracted water.
[0018] Optionally, the top of the column is provided with a through hole, and the outer surface of the threaded sleeve is slidably connected to the inner surface of the through hole.
[0019] By adopting the above technical solution, the threaded sleeve can be moved up and down easily.
[0020] Optionally, a maintenance plate is fixedly connected to the front of the column by screws, and a baffle is fixedly connected to the front of the plate by screws.
[0021] By adopting the above technical solution, it is convenient to disassemble and repair the column.
[0022] In summary, this utility model has the following beneficial effects:
[0023] This invention, by setting up a dewatering frame, facilitates the storage of coal slime that needs to be dewatered. By setting up a lifting mechanism, a top plate, and a pressing plate, the coal slime inside the dewatering frame can be pressed and dewatered. By setting up a drive motor, a drive gear, and a driven gear, the rotating shaft and the dewatering frame can be rotated 180 degrees, which facilitates the discharge of the dewatered coal slime and facilitates subsequent coal slime dewatering, resulting in high production efficiency. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of this utility model;
[0025] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0026] Figure 3 This is a bottom view of the extrusion plate structure of this utility model;
[0027] Figure 4 The structure of this utility model Figure 2 A magnified view of a portion of point A in the middle.
[0028] In the diagram: 1. Base plate; 2. Column; 3. Lifting mechanism; 301. Servo motor; 302. Threaded rod; 303. Threaded sleeve; 304. Horizontal plate; 305. Support plate; 4. Top plate; 5. Extrusion plate; 6. Vertical plate; 7. Rotating shaft; 8. Dewatering frame; 9. Tilting mechanism; 901. Drive motor; 902. Drive gear; 903. Driven gear; 10. Filter screen; 11. Water outlet; 12. Slider; 13. Slide groove; 14. Feed pipe; 15. Sealing cover; 16. Collection box. Detailed Implementation
[0029] 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.
[0030] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] Example:
[0033] Please refer to Figure 1-4 A coal slime pressing and dewatering device for a coal washing plant includes a base plate 1, a column 2 fixedly connected to the right side of the top of the base plate 1, a lifting mechanism 3 provided in the inner cavity of the column 2, a top plate 4 fixedly connected to one end of the lifting mechanism 3, a pressing plate 5 fixedly connected to the bottom of the top plate 4, a vertical plate 6 fixedly connected to the top of the base plate 1 and to the left side of the column 2, a rotating shaft 7 rotatably connected to the right side of the inner cavity of the vertical plate 6 via a bearing, a dewatering frame 8 fixedly connected to the left side of the rotating shaft 7, and a flipping mechanism 9 provided on the surface of the rotating shaft 7.
[0034] The flipping mechanism 9 includes a drive motor 901, which is fixedly installed on the bottom left side of the inner cavity of the upright plate 6. The output end of the drive motor 901 is fixedly connected to a drive gear 902, and the outer surface of the rotating shaft 7 is fixedly connected to a driven gear 903. The outer surface of the drive gear 902 meshes with the outer surface of the driven gear 903. The drive motor 901 is a self-locking motor, which can be stably locked after stopping operation and will not rotate on its own.
[0035] As a further technical optimization of this utility model, the lifting mechanism 3 includes a servo motor 301, which is fixedly installed at the bottom of the inner cavity of the column 2. The output end of the servo motor 301 is fixedly connected to a threaded rod 302. A threaded sleeve 303 is threadedly connected to the top of the outer surface of the threaded rod 302. A horizontal plate 304 is fixedly connected to the top of the threaded sleeve 303. A support plate 305 is fixedly connected to the bottom of the horizontal plate 304. The bottom of the support plate 305 is fixedly connected to the top of the top plate 4.
[0036] As a further technical optimization of this utility model, a filter screen 10 is fixedly connected to the inner surface of the dehydration frame 8, and water outlet holes 11 are evenly opened at the bottom of the dehydration frame 8.
[0037] As a further technical optimization of this utility model, sliders 12 are fixedly connected to the bottom of both sides of the threaded sleeve 303, and grooves 13 that cooperate with sliders 12 are opened on both sides of the inner cavity of the column 2. The outer surface of slider 12 is slidably connected to the inner surface of groove 13.
[0038] As a further technical optimization of this utility model, the bottom of the extrusion plate 5 is connected to a feed pipe 14, and a sealing cap 15 is provided at the opening of the feed pipe 14.
[0039] As a further technical optimization of this utility model, a collection box 16 is placed on the left side of the top of the base plate 1, and mounting holes are provided at the four corners of the top of the base plate 1.
[0040] As a further technical optimization of this utility model, the top of the column 2 is provided with a through hole, and the outer surface of the threaded sleeve 303 is slidably connected to the inner surface of the through hole.
[0041] As a further technical optimization of this utility model, the front of the column 2 is fixedly connected to the inspection plate by screws, and the front of the plate 6 is fixedly connected to the baffle by screws.
[0042] In this embodiment: The dewatering frame 8 facilitates the storage of coal slime requiring dewatering. The servo motor 301, threaded rod 302, threaded sleeve 303, horizontal plate 304, support plate 305, top plate 4, and extrusion plate 5 enable the pressing and dewatering of the coal slime inside the dewatering frame 8. The drive motor 901, drive gear 902, and driven gear 903 drive the rotating shaft 7 and dewatering frame 8 to rotate 180 degrees, facilitating the discharge of the dewatered coal slime and subsequent dewatering, resulting in high production efficiency. The filter screen 10 filters and intercepts the coal slime. The water outlet 11 facilitates the drainage of water from the coal slime. The slider 12 and chute 13 guide and limit the movement of the threaded sleeve 303. The feed pipe 14 and sealing cover 15 facilitate the transport of the coal slime to be dewatered into the dewatering frame 8 for dewatering. The collection box 16 facilitates the collection of the dewatered wastewater. The mounting hole facilitates the installation and fixing of the base plate 1. The through hole facilitates the up-and-down movement of the threaded sleeve 303. The inspection plate facilitates the disassembly and maintenance of the column 2. The baffle facilitates the disassembly and maintenance of the vertical plate 6.
[0043] The implementation principle of this utility model is as follows: In use, the coal slime to be dewatered is placed into the dewatering frame 8. The control switch of the servo motor 301 is activated. The servo motor 301 drives the threaded rod 302 to rotate, which in turn drives the threaded sleeve 303 to move downwards. The threaded sleeve 303 then drives the horizontal plate 304 to move downwards, which in turn drives the support plate 305 to move downwards. The support plate 305 then drives the top plate 4 and the pressing plate 5 to move downwards. The pressing plate 5 presses and dewaters the coal slime inside the dewatering frame 8. The water is discharged through the water outlet 11 and falls into the collection box 16 for collection. When further dewatering is needed... When discharging the dewatered coal slime, remove the collection box 16, place the coal slime collection box on top, start the control switch of the servo motor 301, move the top plate 4 and the extrusion plate 5 upwards, separating them from the dewatering frame 8, and then start the control switch of the drive motor 901. The drive motor 901 drives the drive gear 902 to rotate, the drive gear 902 drives the driven gear 903 to rotate, and the driven gear 903 drives the rotating shaft 7 and the dewatering frame 8 to rotate, causing the dewatering frame 8 to rotate 180 degrees. At this time, the coal slime inside the dewatering frame 8 falls down for discharge. Afterwards, reset the dewatering frame 8 and perform coal slime pressing and dewatering again.
[0044] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A slime squeezing dewatering device for a coal washery, comprising a base plate (1), characterized in that: A column (2) is fixedly connected to the right side of the top of the base plate (1). A lifting mechanism (3) is provided in the inner cavity of the column (2). A top plate (4) is fixedly connected to one end of the lifting mechanism (3). A pressing plate (5) is fixedly connected to the bottom of the top plate (4). A vertical plate (6) is fixedly connected to the top of the base plate (1) and to the left side of the column (2). A rotating shaft (7) is rotatably connected to the right side of the inner cavity of the vertical plate (6) via a bearing. A dehydration frame (8) is fixedly connected to the left side of the rotating shaft (7). A flipping mechanism (9) is provided on the surface of the rotating shaft (7). The flipping mechanism (9) includes a drive motor (901), which is fixedly installed on the bottom of the left side of the inner cavity of the upright plate (6). The output end of the drive motor (901) is fixedly connected to a drive gear (902), and the outer surface of the rotating shaft (7) is fixedly connected to a driven gear (903). The outer surface of the drive gear (902) meshes with the outer surface of the driven gear (903).
2. The slime squeezing dewatering device for coal washery according to claim 1, characterized in that: The lifting mechanism (3) includes a servo motor (301), which is fixedly installed at the bottom of the inner cavity of the column (2). The output end of the servo motor (301) is fixedly connected to a threaded rod (302). A threaded sleeve (303) is threadedly connected to the top of the outer surface of the threaded rod (302). A horizontal plate (304) is fixedly connected to the top of the threaded sleeve (303). A support plate (305) is fixedly connected to the bottom of the horizontal plate (304). The bottom of the support plate (305) is fixedly connected to the top of the top plate (4).
3. The slime squeezing dewatering device for coal washery according to claim 1, characterized in that: A filter screen (10) is fixedly connected to the inner surface of the dehydration frame (8), and water outlet holes (11) are evenly opened at the bottom of the dehydration frame (8).
4. The slime dewatering device for coal washery according to claim 2, characterized in that: The bottom of the left and right sides of the threaded sleeve (303) is fixedly connected with sliders (12), and the inner sides of the column (2) are provided with grooves (13) for use with sliders (12). The outer surface of the slider (12) is slidably connected to the inner surface of the groove (13).
5. The coal slime squeezing dewatering device for coal washery according to claim 1, characterized in that: The bottom of the extrusion plate (5) is connected to a feed pipe (14), and a sealing cap (15) is provided at the opening of the feed pipe (14).
6. The coal slime squeezing dewatering device for coal washery according to claim 1, characterized in that: A collection box (16) is placed on the left side of the top of the base plate (1), and mounting holes are provided at the four corners of the top of the base plate (1).
7. A coal slime press dewatering device for a coal washery according to claim 2, characterised in that: The top of the column (2) is provided with a through hole, and the outer surface of the threaded sleeve (303) is slidably connected to the inner surface of the through hole.
8. The slime dewatering device for coal washery according to claim 1, characterized in that: The front of the column (2) is fixedly connected to a maintenance plate by screws, and the front of the plate (6) is fixedly connected to a baffle by screws.