A coal washing plant for coal mines

Abstract

The utility model relates to the technical field of coal mine discloses a coal -washing equipment for coal mine, including motor no.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, and in particular to a coal washing equipment for coal mines. Background Technology

[0002] A coal washing equipment for coal mines is a specialized piece of equipment developed to improve coal quality, separate impurities from coal, and meet the coal needs of different industrial sectors. It aims to effectively remove gangue, sulfur, and other impurities from coal through a scientific washing process, thereby increasing the calorific value and cleanliness of the coal. It typically consists of a feed screening device, a heavy media hydrocyclone, a flotation machine, a dewatering screen, a coal slime thickener, a media recovery system, and intelligent control components. This coal washing equipment is widely used in various coal mine washing plants, significantly improving coal quality and added value, reducing coal combustion pollution, and enhancing the economic benefits and market competitiveness of coal mining enterprises. It is of great significance for promoting the clean and efficient utilization of coal.

[0003] Integrating efficient mixing, precise separation, and rapid dewatering technologies, this stone conveying device achieves integrated operation from stone mixing to finished product output. Featuring powerful mixing, an intelligent multi-functional separator, a high-efficiency fine coal dewatering screen, linked transmission control, and wear-resistant and impact-resistant protection design, this stone conveying device effectively simplifies the stone processing flow and improves production efficiency and finished product quality through functional integration and technological innovation. It is widely applicable to mining, building aggregate production, road engineering, and other fields, and is especially suitable for modern processing production lines with stringent requirements for refined and efficient stone processing.

[0004] In existing technologies, most coal washing equipment has a relatively simple stirring structure. During the coal washing process, it is impossible to fully stir the mixture of coal slime and washing agents, resulting in dead zones in the material flow within the mixing tank. The agents and coal slime cannot fully contact each other, affecting the washing effect. Insufficient stirring force cannot effectively disperse the agglomerated coal slime particles, resulting in low stirring efficiency. The coal washing process is time-consuming and energy-intensive, making it difficult to meet the production needs of modern coal mines for high-efficiency coal washing. Therefore, a coal washing equipment for coal mines is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a coal washing equipment for coal mines, which aims to improve the problem of insufficient mixing effect in the prior art.

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

[0007] A coal washing device for coal mines includes a motor, a drive wheel fixedly connected to the drive end of the motor, a reducer coupled to the outer wall of the drive wheel, a rotating rod fixedly connected to the rear side of the reducer, a second through shaft fixedly connected to the rear side of the rotating rod, a front bearing fixedly connected to the front side of the second through shaft, a rear bearing fixedly connected to the rear side of the second through shaft, multiple reamers fixedly connected to the outer wall of the second through shaft, a fixed plate rotatably connected to the outer wall of the rotating rod, a protective frame fixedly connected to the bottom end of the fixed plate, a first through shaft fixedly connected to the outer wall of the protective frame, two support plates fixedly connected to the bottom end of the first through shaft, and a conveying assembly for conveying and drying clean coal provided at the bottom end of the support plate.

[0008] As a further description of the above technical solution:

[0009] The conveying assembly includes two protective frames. The top ends of the two protective frames are fixedly connected to the bottom end of the support plate. A hydraulic cylinder is fixedly connected to the inner wall of the protective frame. A support frame is fixedly connected to the top end of the hydraulic cylinder. A hydraulic cylinder is fixedly connected to the outer wall of the support frame. A hydraulic cylinder is fixedly connected to the outer wall of the support frame. A hydraulic cylinder is fixedly connected to the outer wall of the support frame. A hydraulic cylinder is fixedly connected to the outer wall of the support frame. Two rolling bearings are rotatably connected to the outer wall of the support frame.

[0010] As a further description of the above technical solution:

[0011] A rolling shaft is fixedly connected to the outer wall of the rolling bearing, a conveyor belt is fixedly connected to the outer wall of the rolling shaft, a hydraulic control valve is fixedly connected to the outer wall of the support frame, a second motor is fixedly connected to the outer wall of the support frame, a second drive wheel is fixedly connected to the drive end of the second motor, a belt roller is coupled to the outer wall of the second drive wheel, and a connecting plate is fixedly connected to the bottom end of the second protective frame.

[0012] As a further description of the above technical solution:

[0013] The bottom end of the connecting plate is fixedly connected to a base plate, the top end of the base plate is fixedly connected to two support frames, the outer wall of the support frames is fixedly connected to a third eccentric shaft, and the outer wall of the support frames is fixedly connected to a fourth eccentric shaft.

[0014] As a further description of the above technical solution:

[0015] The rear side of the third eccentric shaft is rotatably connected to the third eccentric iron, and the rear side of the fourth eccentric shaft is rotatably connected to the fourth eccentric iron.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the No. 3 eccentric iron is fixedly connected to the No. 1 eccentric shaft, and the outer wall of the No. 4 eccentric iron is fixedly connected to the No. 2 eccentric shaft.

[0018] As a further description of the above technical solution:

[0019] A first eccentric iron is fixedly connected to the front side of the first eccentric shaft, and a second eccentric iron is fixedly connected to the front side of the second eccentric shaft.

[0020] As a further description of the above technical solution:

[0021] The front side of the first eccentric iron is fixedly connected to the third motor, and the front side of the second eccentric iron is fixedly connected to the third motor. Screen plates are fixedly connected to the adjacent sides of the two support frames.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, motor one serves as the power source, driving the drive wheel one to rotate. After power optimization via a reducer, the power is smoothly and efficiently transmitted to the second through shaft via a rotating rod. Multiple augers fixed on the outer wall serve as the core stirring components, rotating at high speed with the second through shaft. This allows for powerful stirring of the coal, ensuring thorough mixing and contact between the coal and the coal washing medium. This ensures that coal particles are evenly dispersed in the coal washing liquid, thereby achieving effective separation of impurities and gangue on the coal surface. This facilitates precise density-based sorting, significantly improves the quality and recovery rate of clean coal, reduces coal resource waste, and brings higher economic and environmental benefits to enterprises.

[0024] 2. In this utility model, the No. 1 hydraulic cylinder, with its powerful and stable thrust, can precisely control the lifting height of the support frame, enabling flexible adjustment of the conveyor belt height. The No. 2, No. 3, and No. 4 hydraulic cylinders work in coordination with the No. 1 hydraulic cylinder to provide support and adjustment force to the support frame from multiple directions, ensuring that the conveyor belt remains stable during lifting and lowering, avoiding tilting or shaking, and ensuring efficient and reliable operation of the conveyor belt during lifting and transmission operations. This reduces problems such as material spillage and transmission jams caused by the instability of the conveyor belt, ensuring the smooth and efficient operation of the overall coal washing equipment process. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a coal washing equipment for coal mines proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the No. 2 through shaft of a coal washing equipment for coal mines proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a conveyor belt for a coal washing equipment in a coal mine, as proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the support frame for a coal washing equipment used in a coal mine, as proposed in this utility model.

[0029] Legend:

[0030] 1. Motor 1; 2. Drive wheel 1; 3. Reducer; 4. Rotating rod; 5. No. 2 through shaft; 6. Front bearing; 7. Rear bearing; 8. Reamer; 9. Fixing plate; 10. Protective frame 1; 11. No. 1 through shaft; 12. Support plate; 13. Protective frame 2; 14. No. 1 hydraulic cylinder; 15. Support frame; 16. No. 2 hydraulic cylinder; 17. No. 3 hydraulic cylinder; 18. No. 4 hydraulic cylinder; 19. Rolling bearing; 20. Rolling shaft body; 21. 21. Conveyor belt; 22. Hydraulic control valve; 23. Motor II; 24. Drive wheel II; 25. Belt roller; 26. Connecting plate; 27. Base plate; 28. Support frame; 29. ​​Eccentric shaft No. 3; 30. Eccentric shaft No. 4; 31. Eccentric iron No. 3; 32. Eccentric iron No. 4; 33. Eccentric shaft No. 1; 34. Eccentric shaft No. 2; 35. Eccentric iron No. 1; 36. Eccentric iron No. 2; 37. Motor No. 1 III; 38. Motor No. 2 III; 39. Screen plate. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 and Figure 2 An embodiment of this utility model is provided: a coal washing equipment for coal mines, including a motor 1, a drive wheel 2 fixedly connected to the drive end of the motor 1, the motor 1 drives the drive wheel 2 to rotate, a reducer 3 is coupled to the outer wall of the drive wheel 2, a rotating rod 4 is fixedly connected to the rear side of the reducer 3, the drive wheel 2 drives the rotating rod 4 to rotate together, and a second through shaft 5 is fixedly connected to the rear side of the rotating rod 4.

[0033] The rotating rod 4 acts as a bridge to ensure that power is smoothly transmitted from the reducer 3 to the second through shaft 5. The front bearing 6 is fixedly connected to the front side of the second through shaft 5, and the rear bearing 7 is fixedly connected to the rear side of the second through shaft 5. The setting of the front bearing 6 and the rear bearing 7 can effectively reduce the friction of the second through shaft 5 during rotation. Multiple reamers 8 are fixedly connected to the outer wall of the second through shaft 5. The reamers 8 rotate with the rotation of the second through shaft 5 and are the key actuators for stirring and crushing coal in the coal washing equipment. The outer wall of the rotating rod 4 is rotatably connected to the fixing plate 9.

[0034] The fixed plate 9 provides a stable support point for the rotating rod 4. The bottom end of the fixed plate 9 is fixedly connected to a protective frame 10. The outer wall of the protective frame 10 is fixedly connected to a first through shaft 11. The support structure composed of the first through shaft 11 and the support plate 12 provides a stable foundation for the coal washing equipment. The bottom end of the first through shaft 11 is fixedly connected to two support plates 12. The support plates 12 are used to establish a connection between the stirring component and the transmission component. The bottom end of the support plate 12 is provided with a conveying component for conveying and drying clean coal.

[0035] Reference Figure 1 and Figure 3 The conveying component includes a second protective frame 13. The conveying component includes two parts: conveying and drying clean coal. The top ends of the two second protective frames 13 are fixedly connected to the bottom end of the support plate 12. The connection between the second protective frame 13 and the support plate 12 makes the conveying component firmly integrated into the overall structure of the coal washing equipment, enhancing the overall integrity of the equipment. The inner wall of the second protective frame 13 is fixedly connected to a first hydraulic cylinder 14. The top end of the first hydraulic cylinder 14 is fixedly connected to a support frame 15.

[0036] Hydraulic cylinder 14 provides a powerful and stable thrust, precisely controlling the lifting height of support frame 15. Support frame 15 can support the entire transmission assembly for vertical height adjustment. Hydraulic cylinder 16, 17, and 18 are fixedly connected to the outer wall of support frame 15. The combination of multiple hydraulic cylinders gives support frame 15 the ability to adjust. Two rolling bearings 19 are rotatably connected to the outer wall of support frame 15, providing a mounting base for the rolling bearings 19.

[0037] Reference Figure 1 , Figure 3 and Figure 4 A rolling shaft 20 is fixedly connected to the outer wall of the rolling bearing 19, a conveyor belt 21 is fixedly connected to the outer wall of the rolling shaft 20, a hydraulic control valve 22 is fixedly connected to the outer wall of the support frame 15, the hydraulic control valve 22 can precisely adjust the hydraulic oil flow and pressure of hydraulic cylinders one to four, and a motor 23 is fixedly connected to the outer wall of the support frame 15.

[0038] The drive end of motor 23 is fixedly connected to drive wheel 24. A belt roller 25 is coupled to the outer wall of drive wheel 24. Motor 23 transmits power to conveyor belt 21 via belt drive between drive wheel 24 and belt roller 25. Motor 23 can drive conveyor belt 21 to perform forward and reverse transmission movements. A connecting plate 26 is fixedly connected to the bottom end of protective frame 13.

[0039] The bottom end of the connecting plate 26 is fixedly connected to the bottom plate 27. The connecting plate 26 provides an installation foundation for the dry coal assembly at the bottom end. The top end of the bottom plate 27 is fixedly connected to two support frames 28. The outer wall of the support frame 28 is fixedly connected to the No. 3 eccentric shaft 29. The support frame 28 provides support for the entire dry coal assembly.

[0040] The outer wall of the support frame 28 is fixedly connected to the fourth eccentric shaft 30, and the rear side of the third eccentric shaft 29 is rotatably connected to the third eccentric iron 31. The outer walls of the third eccentric shaft 29 and the fourth eccentric shaft 30 are both fixedly connected to the outer wall of the support frame 28. The third eccentric iron 31 drives the third eccentric shaft 29 to perform polarization, and the rear side of the fourth eccentric shaft 30 is rotatably connected to the fourth eccentric iron 32.

[0041] The fourth eccentric iron 32 drives the fourth eccentric shaft 30 for polarization. The outer wall of the third eccentric iron 31 is fixedly connected to the first eccentric shaft 33. The outer wall of the fourth eccentric iron 32 is fixedly connected to the second eccentric shaft 34. The first eccentric shaft 33 drives the third eccentric iron 31 to rotate and polarize. The second eccentric shaft 34 drives the fourth eccentric iron 32 to rotate and polarize. The front side of the first eccentric shaft 33 is fixedly connected to the first eccentric iron 35. The front side of the second eccentric shaft 34 is fixedly connected to the second eccentric iron 36.

[0042] The first eccentric iron 35 drives the first eccentric shaft 33 to rotate and polarize, and the second eccentric iron 36 drives the second eccentric shaft 34 to rotate and polarize. The front side of the first eccentric iron 35 is fixedly connected to the first motor 37, and the front side of the second eccentric iron 36 is fixedly connected to the second motor 38. The first motor 37 provides rotational power for the first eccentric iron 35, and the second motor 38 provides rotational power for the second eccentric iron 36. Screen plates 39 are fixedly connected to the adjacent sides of the two support frames 28. The repeated vibration of the screen plates 39 removes moisture from the surface of the clean coal, thereby achieving the effect of drying the clean coal.

[0043] Working principle: When coal containing impurities is poured into the No. 1 shaft 11, water is simultaneously injected into the No. 1 shaft 11. At this time, motor 1 rotates through the belt of drive wheel 2 and reducer 3. Motor 1 drives rotating rod 4 to rotate. Rotating rod 4 drives No. 2 shaft 5 to rotate. No. 2 shaft 5 drives cutter 8 to stir the coal mixed with water, so that the coal particles and impurities are initially separated. The lighter coal particles flow out of the outlet of the mixer and into the conveying device, while the heavier impurities sink to the bottom of No. 1 shaft 11.

[0044] Simultaneously, hydraulic control valve 22 drives hydraulic cylinders 14, 16, 17, and 18 to perform synchronous lifting and lowering movements. After hydraulic cylinders 14, 16, 17, and 18 are raised, the transmission device completes the lifting adjustment. After hydraulic cylinders 14, 16, 17, and 18 are lowered, the transmission device completes the lowering adjustment. Motor 23 drives rolling bearing 19 to rotate through the coupling connection of drive wheel 24 and belt roller 25.

[0045] When the rolling bearing 19 rotates clockwise, it drives the rolling shaft 20 to rotate clockwise, and the rolling shaft 20 drives the conveyor belt 21 to the right for transmission. When the rolling bearing 19 rotates counterclockwise, it drives the rolling shaft 20 to rotate counterclockwise, and the rolling shaft 20 drives the conveyor belt 21 to the left for transmission. The coal particles are transmitted to the drying component along the transmission direction of the conveyor belt 21. Motor 37 drives eccentric iron 35 to rotate, and motor 38 drives eccentric iron 36 to rotate.

[0046] The first eccentric iron 35 drives the first eccentric shaft 33 to rotate and polarize. The second eccentric iron 36 drives the second eccentric shaft 34 to rotate and polarize. The first eccentric shaft 33 drives the third eccentric iron 31 and the third eccentric shaft 29 to rotate and polarize. The second eccentric shaft 34 drives the fourth eccentric iron 32 and the fourth eccentric shaft 30 to rotate and polarize. At this time, the common polarization motion of the third eccentric shaft 29, the fourth eccentric shaft 30, the third eccentric iron 31, the fourth eccentric iron 32, the first eccentric shaft 33, and the second eccentric shaft 34 drives the two support frames 28 to polarize. The support frames 28 drive the screen plate 39 to polarize. At this time, the screen plate 39 completes the separation of moisture on the surface of the coal particles, and the coal particles complete the drying operation.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coal washing equipment for coal mines, comprising a motor (1), characterized in that: The drive end of the motor (1) is fixedly connected to the drive wheel (2). The outer wall of the drive wheel (2) is coupled to the reducer (3). The rear side of the reducer (3) is fixedly connected to the rotating rod (4). The rear side of the rotating rod (4) is fixedly connected to the second through shaft (5). The front side of the second through shaft (5) is fixedly connected to the front bearing (6). The rear side of the second through shaft (5) is fixedly connected to the rear bearing (7). The outer wall of the second through shaft (5) is fixedly connected to multiple reamers (8). The outer wall of the rotating rod (4) is rotatably connected to the fixed plate (9). The bottom end of the fixed plate (9) is fixedly connected to the protective frame (10). The outer wall of the protective frame (10) is fixedly connected to the first through shaft (11). The bottom end of the first through shaft (11) is fixedly connected to two support plates (12). The bottom end of the support plate (12) is provided with a conveying assembly for conveying and drying fine coal.

2. The coal washing equipment for coal mines according to claim 1, characterized in that: The conveying assembly includes a second protective frame (13), the top ends of the two second protective frames (13) are fixedly connected to the bottom end of the support plate (12), the inner wall of the second protective frame (13) is fixedly connected to a first hydraulic cylinder (14), the top end of the first hydraulic cylinder (14) is fixedly connected to a support frame (15), the outer wall of the support frame (15) is fixedly connected to a second hydraulic cylinder (16), the outer wall of the support frame (15) is fixedly connected to a third hydraulic cylinder (17), the outer wall of the support frame (15) is fixedly connected to a fourth hydraulic cylinder (18), and the outer wall of the support frame (15) is rotatably connected to two rolling bearings (19).

3. A coal washing equipment for coal mines according to claim 2, characterized in that: The outer wall of the rolling bearing (19) is fixedly connected to a rolling shaft (20), the outer wall of the rolling shaft (20) is fixedly connected to a conveyor belt (21), the outer wall of the support frame (15) is fixedly connected to a hydraulic control valve (22), the outer wall of the support frame (15) is fixedly connected to a second motor (23), the drive end of the second motor (23) is fixedly connected to a second drive wheel (24), the outer wall of the second drive wheel (24) is coupled to a belt roller (25), and the bottom end of the second protective frame (13) is fixedly connected to a connecting plate (26).

4. A coal washing equipment for coal mines according to claim 3, characterized in that: The bottom end of the connecting plate (26) is fixedly connected to a base plate (27), and the top end of the base plate (27) is fixedly connected to two support frames (28). The outer wall of the support frame (28) is fixedly connected to a third eccentric shaft (29), and the outer wall of the support frame (28) is fixedly connected to a fourth eccentric shaft (30).

5. A coal washing equipment for coal mines according to claim 4, characterized in that: The rear side of the third eccentric shaft (29) is rotatably connected to the third eccentric iron (31), and the rear side of the fourth eccentric shaft (30) is rotatably connected to the fourth eccentric iron (32).

6. A coal washing equipment for coal mines according to claim 5, characterized in that: The outer wall of the third eccentric iron (31) is fixedly connected to the first eccentric shaft (33), and the outer wall of the fourth eccentric iron (32) is fixedly connected to the second eccentric shaft (34).

7. A coal washing equipment for coal mines according to claim 6, characterized in that: The front side of the first eccentric shaft (33) is fixedly connected to the first eccentric iron (35), and the front side of the second eccentric shaft (34) is fixedly connected to the second eccentric iron (36).

8. A coal washing equipment for coal mines according to claim 7, characterized in that: The front side of the first eccentric iron (35) is fixedly connected to the third motor (37), the front side of the second eccentric iron (36) is fixedly connected to the third motor (38), and the two support frames (28) are fixedly connected to the sieve plate (39) on their adjacent sides.

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