A vibrating screen for separating coal and water

Abstract

The utility model relates to a coal water separation is with vibrating screen, its installation is in the unloading port below of ditch cleaner, including the receiving hopper below the unloading port, and its bottom is connected with the elastic connection of ditch cleaner, the receiving hopper sets up as the rectangle shape, extends to the direction of far away from the unloading port, receiving hopper upper end and far away from the unloading port one end all set up as the open shape, the receiving hopper is installed with screen cloth, and the receiving hopper below is provided with drainage component, receiving hopper upper side face open one end transverse setting has the mount, and the eccentric block is rotatably installed through the reduction box on the mount, the input end connection drive motor of reduction box. The vibrating screen is combined design through the eccentric block vibration and the elastic support, and drive motor drives the eccentric block rotation through the reduction box, makes the receiving hopper produce sustained vibration under the cooperation of support spring, and vibration energy can be quickly transferred to the screen cloth, and the coal particle adhered on the surface of screen cloth is shaken off, and the coal particle is embedded in the mesh hole.

Description

Technical Field

[0001] This utility model relates to the field of coal-water separation technology, specifically a vibrating screen for coal-water separation. Background Technology

[0002] As a vital energy resource, coal mine safety has always been a key focus in my country. Coal mine drainage ditches are an important component of coal mine production, responsible for drainage and preventing water accumulation to ensure mine safety. However, traditional manual cleaning methods are inefficient, risky, and incomplete, easily leading to ditch blockages and affecting normal mine operations. Coal mine water tanks and ditches are crucial for ensuring safe coal mine production. With increasing mining depth, mine water consumption gradually increases, leading to a continuous accumulation of silt in water tanks and ditches, posing safety hazards and significant economic losses to coal mine production. Therefore, cleaning coal mine drainage ditches is of great importance. Existing cleaning equipment typically uses ditch cleaning machines to transport the coal-water mixture in the ditch to a filter screen for solid-liquid separation. However, in actual use, it has been found that simply using a filter screen for solid-liquid separation is not ideal. Coal particles easily clog the mesh, resulting in low separation efficiency, and frequent screen cleaning is required, increasing operational difficulty and workload. Utility Model Content

[0003] To address the technical problems existing in the background art, this utility model provides a vibrating screen for coal-water separation.

[0004] The technical solution of this utility model is as follows: A vibrating screen for coal-water separation is installed below the discharge port of a ditch cleaner, including a receiving hopper located below the discharge port, and the bottom of the receiving hopper is elastically connected to the ditch cleaner. The receiving hopper is rectangular and extends away from the discharge port. The upper end of the receiving hopper and the end away from the discharge port are both open. The receiving hopper is equipped with a screen and a drainage component is provided below the receiving hopper. An installation frame is provided across one end of the opening on the upper side of the receiving hopper, and an eccentric block is rotatably mounted on the installation frame via a gearbox. The input end of the gearbox is connected to a drive motor.

[0005] To facilitate material feeding, the screen is installed at an angle and tilted downwards toward the side opening of the receiving hopper.

[0006] To facilitate material collection, a guide plate is installed at the side opening of the receiving hopper, and the guide plate has an integrally formed baffle plate on both sides that bends upward, with the bottom end of the baffle plate inclined toward the center line of the receiving hopper.

[0007] The guide plate has a U-shaped sliding plate at its end, which is installed on the side of the ditch cleaning machine, and the end of the baffle plate is located inside the U-shaped opening of the sliding plate.

[0008] To facilitate the retraction of the sliding plate when not in use, a bracket extending toward the side opening of the receiving hopper is provided on one side of the ditch cleaning machine, and the top of the sliding plate is hinged to the top of the bracket. A support rod is hinged to the outside of the bracket, and the top of the support rod is detachably fixed to the bottom surface of the sliding plate.

[0009] The elastic connection between the receiving hopper and the ditch cleaner is as follows: a base frame is provided on the ditch cleaner under the receiving hopper, and multiple supports are installed on the base frame. Support springs are installed on the supports, and an installation plate is provided at the bottom of the receiving hopper. A spring seat for installing the support springs is provided below the installation plate.

[0010] The drainage component is specifically designed such that a water receiving hopper is provided at the bottom of the material receiving hopper, and the water receiving hopper is connected to the material receiving hopper, and a drain outlet is provided at the front end of the water receiving hopper.

[0011] To improve vibration performance, the mounting frame includes side plates connected to both sides of the receiving hopper, with the side plates connected in the middle by two connecting plates with a height difference. The gearbox is mounted at an angle on the upper part of the two connecting plates. Two sets of eccentric blocks are provided, and they are installed staggered on the outside of the gearbox.

[0012] The eccentric block is specifically designed to be arc-shaped with a central angle of 90°-140°, and the output end of the gearbox is installed at the center of the arc.

[0013] The beneficial effects of this utility model are as follows: This utility model is a vibrating screen for coal-water separation. Compared with existing equipment that relies solely on filter screens, which are prone to separation interruption due to coal particles clogging the mesh and require frequent cleaning, this vibrating screen uses a combination design of eccentric block vibration and elastic support. The drive motor drives the eccentric block to rotate through the reduction gearbox, causing the receiving hopper to vibrate continuously with the help of the support spring. The vibration energy can be quickly transferred to the screen, shaking off the coal particles attached to the screen surface and reducing the clogging of the mesh. At the same time, the vibration can also accelerate the flow and stratification of the coal-water mixture on the screen. The liquid quickly passes through the screen into the drainage component, while the solid coal particles move along the screen, greatly improving the solid-liquid separation efficiency and reducing equipment downtime caused by cleaning the screen. It is suitable for the cleaning needs of continuous coal-water mixture transportation in coal mine water ditches. In terms of separation effect and material guidance adaptability, the device further enhances its practicality through multi-dimensional structural optimization. The screen is installed at an angle and tilts downwards towards the side opening of the receiving hopper. Utilizing the combined effect of gravity and vibration, the separated coal particles automatically move towards the opening, completing the discharge of solid materials without additional power. The guide plate and U-shaped sliding plate at the side opening of the receiving hopper work together to precisely guide the coal particles to the designated collection position, and the baffle plate effectively prevents coal particles from spilling during transportation, avoiding secondary pollution. The hinged design of the sliding plate and the bracket, combined with the detachable fixing of the support rod, allows for flexible adjustment of the sliding plate's tilt angle according to the location of the collection equipment, improving the adaptability of material guidance and ensuring stable transportation of solid materials under different working conditions. Attached Figure Description

[0014] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0015] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of the ditch clearing machine; Figure 2 This is a schematic diagram of a vibrating screen. Figure 3 This is a partial front view of the structure of this scheme; The components represented by the various reference numerals in the diagram are: 1. Ditch cleaning machine; 2. Feeding port; 3. Receiving hopper; 4. Screen; 5. Drainage assembly; 51. Water receiving hopper; 52. Drain outlet; 6. Mounting frame; 61. Side plate; 62. Connecting plate; 7. Gearbox; 8. Eccentric block; 9. Drive motor; 10. Guide plate; 11. Baffle plate; 12. Sliding plate; 13. Bracket; 14. Support rod; 15. Base frame; 16. Support; 17. Support spring; 18. Mounting plate; 19. Spring seat. Detailed Implementation

[0016] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings.

[0017] Example As mentioned in the background section, the existing solid-liquid separation method that relies solely on a filter screen for separating coal and water in a ditch has significant drawbacks: solid impurities such as coal particles easily clog the mesh of the filter screen, which not only leads to a significant decrease in solid-liquid separation efficiency, but also requires workers to frequently stop the machine to clean the screen, increasing both the difficulty of operation and the workload on site. Therefore, the inventors have made improvements to the existing ditch cleaning machine 1 and designed a new type of vibrating screen to be used in conjunction with the cleaning machine. The following is a detailed explanation with reference to the figures.

[0018] This embodiment provides a vibrating screen for coal-water separation; see [link / reference]. Figure 1 This vibrating screen is specifically installed below the discharge port 2 of the coal mine ditch cleaning machine 1. Its core function is to solve the problems of low solid-liquid separation efficiency and easy clogging of the screen 4 in traditional ditch cleaning machines 1. It achieves efficient separation of coal and water mixture through vibrating screening, reduces the frequency of manual cleaning, and ensures the continuity and safety of coal mine ditch cleaning operations. The vibrating screen mainly includes a receiving hopper 3 located below the discharge port 2 of the ditch cleaning machine 1. The receiving hopper 3 is generally rectangular and extends away from the discharge port 2. Both its upper end and the end away from the discharge port 2 are open. The upper opening is used to receive the coal and water mixture discharged from the discharge port 2 of the ditch cleaning machine 1, and the side opening away from the discharge port 2 is used to discharge the screened coal particles. Through the design of the two openings, a complete channel for the input, separation and output of the coal and water mixture is formed.

[0019] In this embodiment, combined with Figure 2 The receiving hopper 3 and the ditch cleaner 1 are connected by an elastic connection. Specifically, a base frame 15 is fixedly installed on the ditch cleaner 1 under the receiving hopper 3. Multiple supports 16 are installed on the base frame 15. In this design, at least four supports are installed, arranged circumferentially under the receiving hopper 3. Each support 16 is vertically mounted with a support spring 17. At the same time, a horizontal mounting plate 18 is welded to the bottom of the receiving hopper 3. A spring seat 19 is fixed below the mounting plate 18 at the position corresponding to the support spring 17. The top of the support spring 17 is embedded in the spring seat 19 and fixedly connected to the spring seat 19. Through the cooperation of the support spring 17, the supports 16 and the spring seat 19, an elastic connection between the receiving hopper 3 and the ditch cleaner 1 is achieved, and stable support is provided for the receiving hopper 3. At the same time, sufficient space is reserved for the vibration of the receiving hopper 3 to avoid rigid collision between the receiving hopper 3 and the ditch cleaner 1 during vibration, which would cause damage to the components.

[0020] In this scheme, combined with Figure 1 and Figure 3A screen 4 is installed inside the receiving hopper 3. The screen 4 is the core component for coal-water separation. To improve separation efficiency and smooth coal particle discharge, the screen 4 is installed at an angle, tilted downwards towards the side opening of the receiving hopper 3. This tilted design allows the screened coal particles to slide quickly along the inclined surface of the screen 4 towards the side opening under the combined action of their own gravity and the vibration of the receiving hopper 3, reducing the accumulation of coal particles on the screen 4 and preventing coal particles from clogging the screen 4 mesh. A guide plate 10 is also installed at the side opening of the receiving hopper 3. The guide plate 10 receives the coal particles sliding out of the screen 4 and guides them outwards. To prevent coal particles from falling from both sides of the guide plate 10 during transportation, the guide plate 10 has an integrally formed upward-bent baffle plate 11 on both sides. The bottom end of the baffle plate 11 is tilted towards the center line of the receiving hopper 3. The tilted baffle plate 11 can form a gathering effect on the coal particles, ensuring that the coal particles are always transported along the middle area of ​​the guide plate 10.

[0021] Based on the above structure, a U-shaped sliding plate 12 is connected to the end of the guide plate 10. The sliding plate 12 is installed on the side of the ditch cleaner 1, and the end of the baffle plate 11 extends into the U-shaped opening of the sliding plate 12. Through the cooperation of the U-shaped structure and the baffle plate 11, coal particles are further prevented from falling. At the same time, the sliding plate 12 can guide the coal particles to the designated collection position. To adapt to different collection heights and on-site working conditions, a bracket 13 extending towards the side opening of the receiving hopper 3 is provided on one side of the ditch cleaner 1. The bracket 13 is located at the edge of the base frame 15. The top of the sliding plate 12 is hinged to the top of the bracket 13, so that the angle of the sliding plate 12 is adjustable. A support rod 14 is also hinged to the outside of the bracket 13. The top of the support rod 14 is detachably fixed to the bottom surface of the sliding plate 12, or optionally connected by bolts. The operator can change the tilt angle of the sliding plate 12 by adjusting the length or fixed position of the support rod 14, thereby controlling the conveying speed and falling position of the coal particles and improving the adaptability of the equipment.

[0022] To drive the vibration of the receiving hopper 3, combined with Figure 2A mounting frame 6 is horizontally installed across one end of the side opening of the receiving hopper 3. The mounting frame 6 includes two side plates 61 fixedly connected to the two side walls of the receiving hopper 3. The two side plates 61 are connected by two connecting plates 62 with a height difference in the middle. The reduction gearbox 7 is installed at an incline on the upper end of the two connecting plates 62. The height difference design makes the reduction gearbox 7 tilted, which can make reasonable use of space and ensure that the vibration force generated by the subsequent rotation of the eccentric block 8 is transmitted to the receiving hopper 3 more evenly. The input end of the reduction gearbox 7 is connected to the drive motor 9 through a coupling. The drive motor 9 provides power to the entire vibration mechanism. The output end of the reduction gearbox 7 is equipped with two sets of eccentric blocks 8, which are staggered and installed on the outside of the reduction gearbox 7. The two sets of staggered eccentric blocks 8 can generate unbalanced centrifugal force when rotating, thereby driving the receiving hopper 3 to produce stable vibration. During the vibration, the coal particles attached to the screen 4 can be shaken off, further preventing the screen 4 from clogging. To ensure moderate and stable vibration, the eccentric block 8 is set in an arc shape with a central angle of 90°-140°. The output end of the gearbox 7 is fixedly connected to the center of the arc-shaped eccentric block 8. This structural design allows the centrifugal force of the eccentric block 8 to be controllable, avoiding damage to the equipment due to excessive vibration or affecting the screening effect due to insufficient vibration.

[0023] After solid-liquid separation, the liquid needs to be discharged from the receiving hopper 3. A drainage component 5 is installed below the receiving hopper 3. The drainage component 5 specifically includes a water receiving hopper 51 fixed at the bottom of the receiving hopper 3. The water receiving hopper 51 is connected to the inside of the receiving hopper 3. The water that passes through the screen 4 after screening will flow into the water receiving hopper 51. A drain outlet 52 is opened at the front end of the water receiving hopper 51. The drain outlet 52 can be connected to a pipe to guide the separated water to a designated drainage system or recycling device to realize the recycling of water resources or compliant discharge.

Claims

1. A vibrating screen for coal-water separation, installed below the discharge port (2) of a ditch cleaner (1), characterized in that, Includes a receiving hopper (3) located below the discharge port (2), and its bottom is elastically connected to the ditch cleaning machine (1). The receiving hopper (3) is rectangular and extends in a direction away from the discharge port (2). The upper end of the receiving hopper (3) and the end away from the discharge port (2) are both open. The receiving hopper (3) is equipped with a screen (4), and a drainage component (5) is provided below the receiving hopper (3). The receiving hopper (3) has an opening on one side with a mounting frame (6) spanning across it. An eccentric block (8) is rotatably mounted on the mounting frame (6) via a gearbox (7). The input end of the gearbox (7) is connected to a drive motor (9).

2. The vibrating screen for coal-water separation according to claim 1, characterized in that, The screen (4) is installed at an angle and tilted downward toward the side opening of the receiving hopper (3).

3. A vibrating screen for coal-water separation according to claim 1, characterized in that, A guide plate (10) is installed at the side opening of the receiving hopper (3), and the guide plate (10) has an upwardly bent baffle plate (11) integrally formed on both sides, and the bottom end of the baffle plate (11) is inclined toward the center line of the receiving hopper (3).

4. A vibrating screen for coal-water separation according to claim 3, characterized in that, The guide plate (10) is provided with a U-shaped sliding plate (12) at its end, and it is installed on the side of the ditch cleaning machine (1). The end of the baffle plate (11) is located in the U-shaped opening of the sliding plate (12).

5. A vibrating screen for coal-water separation according to claim 4, characterized in that, The ditch cleaning machine (1) has a bracket (13) extending toward the side opening of the receiving hopper (3) on one side, and the top of the sliding plate (12) is hinged to the top of the bracket (13). A support rod (14) is hinged to the outside of the bracket (13), and the top of the support rod (14) is detachably fixed to the bottom surface of the sliding plate (12).

6. A vibrating screen for coal-water separation according to claim 1, characterized in that, The ditch cleaning machine (1) under the receiving hopper (3) is provided with a base frame (15), and multiple supports (16) are installed on the base frame (15). Support springs (17) are installed on the supports (16), and an installation plate (18) is provided at the bottom of the receiving hopper (3). A spring seat (19) for installing the support springs (17) is provided below the installation plate (18).

7. A vibrating screen for coal-water separation according to claim 1, characterized in that, The bottom of the receiving hopper (3) is provided with a water receiving hopper (51), and the water receiving hopper (51) is connected to the receiving hopper (3). The front end of the water receiving hopper (51) is provided with a drain outlet (52).

8. A vibrating screen for coal-water separation according to claim 1, characterized in that, The mounting frame (6) includes side plates (61) connected to both sides of the receiving hopper (3), and the side plates (61) are connected in the middle by two connecting plates (62) with a height difference. The gearbox (7) is installed at an angle on the upper end of the two connecting plates (62).

9. A vibrating screen for coal-water separation according to claim 8, characterized in that, The eccentric blocks (8) are provided in two sets and are installed on the outside of the gearbox (7) in a staggered manner.

10. A vibrating screen for coal-water separation according to claim 9, characterized in that, The eccentric block (8) is set to be arc-shaped with a central angle of 90°-140°, and the output end of the gearbox (7) is installed at the center of the arc.

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