A coal chute system dewatering device for mines

Abstract

A kind of dehydration device of coal chute system for mine, including several vertical legs, it further includes the shell being arranged above base, buffer mechanism is arranged between shell and leg, and vibration motor is detachably fixed on shell, the top right side of shell is equipped with feed hopper, the inside of shell is equipped with first sieve plate, the right end of first sieve plate is below feed hopper, the left end of first sieve plate is obliquely arranged to the lower left of shell, and the left end of shell is equipped with first discharge port corresponding to first sieve plate;The inside below shell is equipped with second sieve plate, the left end of second sieve plate is fixed below the left end of first sieve plate, the left side of second sieve plate is equipped with third discharge port, the right end of second sieve plate is obliquely arranged downward, the right side of second sieve plate is equipped with vertically arranged baffle, and the second discharge port is arranged on the shell below the right end of second sieve plate.The present application has the advantages of simple structure and convenient use.

Description

Technical Field

[0001] This utility model belongs to the field of coal mining and transmission technology, and in particular relates to a dewatering device for a coal chute system used in mines. Background Technology

[0002] Coal chutes in underground coal mines typically include crushers, multi-stage belt conveyors, and coal bunkers. The raw coal cut by the mining machine is crushed to a set particle size by the crusher and then conveyed by the multi-stage belt conveyor into the coal bunker for temporary storage. The stored raw coal is then transported to the surface via an upward conveyor by opening the gate of the coal bunker. In coal mines with large aquifers, mining activities can cause a large influx of roof water, fissure water, goaf water, and water from the coal seam itself into the coal chutes. Furthermore, the gangue in the raw coal has the characteristic of cementing. When the moisture content of the raw coal exceeds approximately 20%, the coal-water mixture becomes a viscous two-phase fluid, commonly known as "water coal." High water content in water coal leads to increased transportation energy consumption and decreased coal quality. Excessive water can also cause bunker collapse and subsequent production stoppage. Therefore, it is necessary to separate coal and water mixtures. In the existing technology, coal and water are separated by vibrating screens. However, if the screen holes of the vibrating screen are too large, small coal particles and water will be screened out together, which will affect the coal production rate. If the screen holes of the vibrating screen are too small, the screen holes will be frequently blocked and the screening efficiency will be affected. Therefore, the existing technology will result in incomplete separation of coal and water mixtures, which will affect production efficiency. Utility Model Content

[0003] This utility model addresses the technical problem of difficult coal-water mixture separation in existing coal mining processes by providing a dewatering device for a mine chute system. The device includes several vertically arranged support legs, with a horizontally arranged base beneath each leg. The bottom end of each support leg is fixed to the top of the base, providing support and increasing the stability of the equipment. It also includes a housing mounted above the base, serving a protective function. A vibrating motor is detachably fixed to the housing. A buffer mechanism is provided between the housing and the support legs. The buffer mechanism includes a vertically arranged lower locking post fixed to the top of each support leg, and upper locking posts corresponding to the lower locking posts at the bottom of the housing. A spring is installed between the housing and the support legs, with the upper end of the spring fitted onto the upper locking post and the lower end fitted onto the lower locking post. When the vibrating motor on the housing operates, the housing vibrates under its influence. A feed hopper is located on the top right side of the shell. The coal-water mixture falls into the shell through the feed hopper. Inside the shell, there is a first screen plate. The right end of the first screen plate is located below the feed hopper, and the left end of the first screen plate is inclined towards the lower left of the shell. The left end of the shell has a first discharge port corresponding to the first screen plate. Inside the shell, at the bottom, there is a second screen plate. The left end of the second screen plate is fixed below the left end of the first screen plate. The left side of the second screen plate has a third discharge port, and the right end of the second screen plate is inclined downward. The right side of the second screen plate has a vertically arranged baffle. The shell below the right end of the second screen plate has a second discharge port. The coal-water mixture first falls onto the right end of the first screen plate. Larger coal pieces are screened by the first screen plate, roll down the first screen plate to the left end of the first screen plate, and are discharged from the shell through the first discharge port. Smaller coal pieces and the mixture of water fall through the screen holes on the first screen plate. Between the first and second screen plates, several evenly spaced guide plates are arranged from left to right. The guide plates are detachably fixed to the inner wall of the shell, and the lower end of each guide plate is inclined downward toward the right end of the shell. After being guided by the guide plates, the material falls to the right end of the second screen plate. The second screen plate has a smaller inclination. With the vibration of the vibrating motor, the water in the coal-water mixture on the second screen plate falls through the screen holes of the second screen plate to the bottom of the shell and is discharged through the second discharge port. The coal on the second screen plate moves to the left end of the second screen plate under the repeated pushing of the second screen plate and falls through the third discharge port. The second screen plate is inclined to the lower right of the shell, which increases the time that the coal-water mixture stays on the second screen plate and can more effectively separate the coal-water mixture.

[0004] Preferably, the screening holes on the first screen plate are larger than the screening holes on the second screen plate.

[0005] Preferably, the inclination of the first sieve plate is greater than the inclination of the second sieve plate.

[0006] The above scheme has the following advantages:

[0007] The first screen plate is set at a relatively large inclination, which facilitates the rolling off of larger coal pieces, reduces clogging of the screen holes, and improves screening efficiency. The second screen plate is set at an inclination towards the lower right of the shell, which increases the time the coal-water mixture stays on the second screen plate, enabling more effective separation of the coal-water mixture. The coal guide plate is set to guide the coal-water mixture falling from the screening holes of the first screen plate to the right end of the second screen plate. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0009] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0010] Figure 3 This is a schematic diagram of the left-side structure of this utility model;

[0011] Figure 4 This is a top view of the structure of this utility model;

[0012] Figure 5 for Figure 4 A schematic diagram of the AA-direction cross-section structure.

[0013] Reference numerals: 1. Support leg; 2. Housing; 3. Buffer mechanism; 4. First screen plate; 5. Second screen plate; 6. Guide plate; 11. Base; 21. Feed hopper; 22. Vibrating motor; 23. First discharge port; 24. Second discharge port; 25. Third discharge port; 31. Spring; 41. Fixing block; 51. Baffle. Detailed Implementation

[0014] like Figure 1-5As shown, a dewatering device for a coal chute system in a mine includes several vertically arranged support legs 1. A horizontally arranged base 11 is located below each support leg 1. The bottom end of each support leg 1 is fixed to the top end of the base 11. The support legs 1 provide support, and the base 11 increases the stability of the equipment. It also includes a housing 2 located above the base 11, which provides protection. A vibration motor 22 is detachably fixed to the housing 2. A buffer mechanism 3 is provided between the housing 2 and the support legs 1. The buffer mechanism 3 includes a vertically arranged lower locking post (not shown in the attached drawings) fixed to the top end of each support leg 1, and an upper locking post corresponding to the lower locking post at the bottom end of the housing 2. A spring 31 is provided between the housing 2 and the support legs 1. The upper end of the spring 31 is sleeved on the upper locking post, and the lower end of the spring 31 is sleeved on the lower locking post. When the vibration motor 22 on the housing 2 operates, the housing 2 vibrates under the action of the vibration motor 22. A feed hopper 21 is located on the top right side of the shell 2. The coal-water mixture falls into the shell 2 through the feed hopper 21. A first screen plate 4 is located inside the shell 2. The first screen plate 4 is fixed to the inner wall of the shell 2 by a fixing block 41. The right end of the first screen plate 4 is located below the feed hopper 21, and the left end of the first screen plate 4 is inclined towards the lower left of the shell 2. The left end of the shell 2 is provided with a first discharge port 23 corresponding to the first screen plate 4. A second screen plate 5 is located at the lower inside of the shell 2. The left end of the second screen plate 5 is fixed to the left side of the first screen plate 4. Below the end, a third discharge port 25 is provided on the left side of the second screen plate 5. The right end of the second screen plate 5 is inclined downward. A vertically arranged baffle 51 is provided on the right side of the second screen plate 5. A second discharge port 24 is provided on the shell 2 below the right end of the second screen plate 5. The coal-water mixture first falls on the right end of the first screen plate 4. Larger coal pieces are screened by the first screen plate 4 and roll down along the first screen plate 4 to the left end of the first screen plate 4, and are discharged from the shell 2 through the first discharge port 23. Smaller coal pieces and water mixture fall through the screen holes on the first screen plate 4. Between the first screen plate 4 and the second screen plate 5, several guide plates 6 are evenly spaced from left to right. The guide plates 6 are detachably fixed to the inner wall of the housing 2, and the lower end of each guide plate 6 is inclined downward toward the right end of the housing 2. After being guided by the guide plates 6, the material falls to the right end of the second screen plate 5. The inclination of the second screen plate 5 is small. With the vibration of the vibrating motor 22, the water in the coal-water mixture on the second screen plate 5 falls through the screen holes of the second screen plate 5 to the bottom of the housing 2 and is discharged through the second discharge port 24. The coal on the second screen plate 5 moves to the left end of the second screen plate 5 under the repeated pushing of the second screen plate 5 and falls through the third discharge port 25. The second screen plate 5 is inclined toward the lower right of the housing 2, which increases the time that the coal-water mixture stays on the second screen plate 5, and can more effectively separate the coal-water mixture.

[0015] Preferably, the screening holes on the first screen plate 4 are larger than the screening holes on the second screen plate 5.

[0016] Preferably, the inclination of the first sieve plate 4 is greater than the inclination of the second sieve plate 5.

[0017] Usage process:

[0018] In use, the vibrating motor 22 is first started, and then the coal-water mixture is fed into the hopper 21 and falls into the housing 2. The coal-water mixture first falls to the right end of the first screen plate 4. Larger coal pieces are screened by the first screen plate 4 and roll down to the left end of the first screen plate 4, and are discharged from the housing 2 through the first discharge port 23. Smaller coal pieces and water mixture fall through the screen holes on the first screen plate 4. After being guided by the guide plate 6, they fall to the right end of the second screen plate 5. The second screen plate 5 has a smaller inclination. With the vibration of the vibrating motor 22, the water in the coal-water mixture on the second screen plate 5 falls through the screen holes of the second screen plate 5 to the bottom of the housing 2 and is discharged through the second discharge port 24. The coal on the second screen plate 5 moves to the left end of the second screen plate 5 under the repeated pushing of the second screen plate 5 and falls through the third discharge port 25. The second screen plate 5 is inclined to the lower right of the housing 2, which increases the time that the coal-water mixture stays on the second screen plate 5, and can more effectively separate the coal-water mixture.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0020] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A dewatering device for a coal chute system in a mine, comprising a plurality of vertically arranged support legs, and a housing disposed above a base, wherein a buffer mechanism is provided between the housing and the support legs, and a vibration motor is detachably fixed to the housing, characterized in that: A feed hopper is located on the top right side of the shell. A first screen plate is located inside the shell. The right end of the first screen plate is located below the feed hopper. The left end of the first screen plate is inclined towards the lower left of the shell. A first discharge port corresponding to the first screen plate is located on the left end of the shell. A second screen plate is located at the bottom inside the shell. The left end of the second screen plate is fixed below the left end of the first screen plate. A third discharge port is located on the left side of the second screen plate. The right end of the second screen plate is inclined downward. A vertically arranged baffle is located on the right side of the second screen plate. A second discharge port is located on the shell below the right end of the second screen plate.

2. The dewatering device for a coal chute system in a mine according to claim 1, characterized in that: The buffer mechanism includes a vertically arranged lower locking post fixed to the top of the support leg, an upper locking post corresponding to the lower locking post at the bottom of the housing, and a spring between the housing and the support leg. The upper end of the spring is sleeved on the upper locking post, and the lower end of the spring is sleeved on the lower locking post.

3. The dewatering device for a coal chute system in a mine according to claim 1, characterized in that: Between the first screen plate and the second screen plate, there are several guide plates evenly spaced from left to right. The guide plates are detachably fixed to the inner wall of the shell, and the lower end of each guide plate is inclined downward toward the right end of the shell.

4. A dewatering device for a coal chute system in a mine according to claim 1, characterized in that: The screening holes on the first screen plate are larger than those on the second screen plate.

5. A dewatering device for a coal chute system in a mine according to claim 4, characterized in that: The inclination of the first sieve plate is greater than the inclination of the second sieve plate.

6. A dewatering device for a coal chute system in a mine according to claim 1, characterized in that: The legs are mounted on a horizontal base, and the bottom of each leg is fixed to the top of the base.

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