Coal slime water separating and conveying device for underground coal mine

Abstract

A coal slime water separating and conveying device for an underground coal mine effectively solves the problems that coal slime water and gas generated during working of an underground coal mine drilling machine cannot be effectively collected, and coal slime in coal slime water cannot be effectively separated. A spiral conveyor, a vibrating screen, a slime water buffer chamber, a hydraulic pump station and a gas-water separation box are sequentially installed on the vehicle body from left to right, a discharging door located above the vibrating screen is arranged on the slime water buffer chamber, a plunger pump is installed in the vehicle body and communicated with the bottom of the vibrating screen, and a negative pressure fan is installed above the slime water buffer chamber. The negative pressure fan is communicated with the slime water buffer chamber, the upper portion of the slime water buffer chamber is communicated with the bottom of the gas-water separation box through a pipeline, and a belt conveyor corresponding to the spiral conveyor is arranged behind the vehicle body.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine construction production, and particularly relates to a coal slime water separation and conveying device for underground coal mines. Background Technique

[0002] When mining underground coal mines, it is necessary to use a drilling rig to conduct water exploration and drainage work in advance. In coal mines with gas outbursts, it is also necessary to drill into the coal seam with a drilling rig to release gas in advance before mining. Drilling rigs are used in both of the above situations. However, a large amount of coal slime water will be generated when the drilling rig is working, and a large amount of gas will also be generated when drilling with a drilling rig in a gas-containing mine. In order to solve the problems of separating gas from coal slime water, the difficulty of separating coal slime from water, and the messy site caused by the flowing of coal slime water at the working place of the drilling rig. The following are some commonly used equipment and treatment solutions.

[0003] Manual excavation: The working process of manual excavation is relatively simple. That is, when the drilling rig is working, the generated coal slime water is led to a place where gas and coal slime water directly fall to the ground. Workers build multiple sedimentation ponds with water bags. After the coal slime water passes through multiple sedimentation ponds and precipitates, the overflowed coal slime water is discharged into the sump and pumped away by a pump. The precipitated coal slime is manually shoveled onto the belt with a spade. This method is the most commonly used in coal mines, but also the least effective. This method has low efficiency, wastes manpower and financial resources, and also makes the site dirty and messy.

[0004] The scheme of using a slurry pump + vibrating dewatering screen + filter press: This scheme is relatively complex. That is, the filter press and vibrating screen are fixed in one place, while the drilling rig is mobile when working. The coal slime water left when the drilling rig is working is first collected, and then pumped into the vibrating dewatering screen through a pipeline by a slurry pump. The materials on the screen fall to a designated place or are transported away by the belt. The dewatered coal slime water enters the sedimentation pond, and then is pumped into the filter press by a slurry pump to be dried and fall to a designated place or be transported away by the belt. The dewatered clear water is discharged into the water channel. The above scheme has good effects, but is relatively complex. Some frequently encountered problems are that the conveying pipeline is often blocked and difficult to clean, and the coal slime is easily adhered to the filter cloth of the filter press and difficult to clean. Content of the Utility Model

[0005] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a coal slime water separation and conveying device for underground coal mines, which effectively solves the problems that coal slime water and gas generated when the underground coal mine drilling rig is working cannot be effectively collected, the coal slime in the coal slime water cannot be effectively separated, and the working environment is poor.

[0006] The technical solution for solving the technical problem is as follows: It includes a vehicle body, on which a screw conveyor, a vibrating screen, a coal slime water buffer chamber, a hydraulic pump station and a gas-water separation tank are successively installed from left to right. A discharge door located above the vibrating screen is provided on the coal slime water buffer chamber. A plunger pump is installed inside the vehicle body and is connected to the bottom of the vibrating screen. A negative pressure fan is installed above the coal slime water buffer chamber and is connected to the coal slime water buffer chamber. The upper part of the coal slime water buffer chamber and the bottom of the gas-water separation tank are connected through a pipeline. A belt conveyor corresponding to the screw conveyor is provided behind the vehicle body.

[0007] Preferably, a pump station motor and a hydraulic operating lever are installed on the hydraulic pump.

[0008] Preferably, an electric control box is installed on the vehicle body.

[0009] Preferably, a gas extraction port and a feed port are provided on the gas-water separation tank.

[0010] Preferably, crawlers are installed below the vehicle body.

[0011] Preferably, a remote control handle is provided on the outer side of the vehicle body.

[0012] The utility model has the following advantages compared with traditional equipment: 1) Adopting the crawler and vehicle body structure, the vehicle body can move along with the drill rig, which is very convenient and has flexible operation; 2) Integrated design, small occupied space, strong adaptability, and can work under harsh conditions with narrow space; 3) High working efficiency, capable of handling the amount of coal slime water and gas generated when the drill rig operates at full load. The coal slime water and gas can be effectively separated with good separation effect. The coal slime water can be further separated to obtain coal slime. It has high automation degree, simple and compact structure, and is not easy to be damaged; 4) Easy to operate, the staff can easily start to operate. It has high cost performance, small investment and large return; 5) The coal slime water is effectively separated and collected, and the working environment is effectively improved. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the front view of the utility model;

[0014] Figure 2 It is a schematic diagram of the left view of the utility model.

[0015] Reference Numerals: 1. Vehicle body; 2. Screw conveyor; 3. Vibrating screen; 4. Coal slime water buffer chamber; 5. Hydraulic pump station; 6. Gas-water separation tank; 7. Discharge door; 8. Plunger pump; 9. Negative pressure fan; 10. Pipeline; 11. Belt conveyor; 12. Pump station motor; 13. Hydraulic operating lever; 14. Electric control box; 15. Gas extraction port; 16. Feed port; 17. Crawler. Detailed Embodiments

[0016] The following further elaborates on the specific implementation manners of the present utility model in conjunction with the attached drawings.

[0017] Given by Figures 1 to 2 There is a coal slime water separation and conveying device for use in coal mines underground, including a vehicle body 1. A screw conveyor 2, a vibrating screen 3, a coal slime water buffer chamber 4, a hydraulic pump station 5, and a gas-water separation tank 6 are successively installed on the vehicle body 1 from left to right. A discharge door 7 located above the vibrating screen 3 is provided on the coal slime water buffer chamber 4. A plunger pump 8 is installed inside the vehicle body 1, and the plunger pump 8 is communicated with the bottom of the vibrating screen 3. A negative pressure fan 9 is installed above the coal slime water buffer chamber 4, and the negative pressure fan 9 is communicated with the coal slime water buffer chamber 4. The upper part of the coal slime water buffer chamber 4 and the bottom of the gas-water separation tank 6 are communicated through a pipeline 10. A belt conveyor 11 corresponding to the screw conveyor 2 is provided behind the vehicle body 1.

[0018] A pump station motor 12 and a hydraulic operating lever 13 are installed on the hydraulic pump.

[0019] An electric control box 14 is installed on the vehicle body 1.

[0020] A gas extraction port 15 and a feed inlet 16 are provided on the gas-water separation tank 6.

[0021] In order to facilitate the movement of the vehicle body 1, crawlers 17 are installed below the vehicle body 1.

[0022] In order to facilitate remotely controlling the start and stop of the equipment, a remote control handle is provided outside the vehicle body 1.

[0023] When the present utility model is in use, the steps of equipment operation are as follows: 1) Check whether all components of the equipment are in good condition; 2) Power on each equipment through the electric control box 14; 3) Start the pump station motor 12; 4) The movement operations such as the front, rear, left, and right turning of the crawlers 17 and the vehicle body 1 can be controlled through the remote control handle or the hydraulic operating lever 13, and the vehicle body 1 can move following the movement of the drill rig; 5) Before the drill rig works, turn on the screw conveyor 2, the plunger pump 8, the vibrating screen 3, and the negative pressure fan 9 through the control buttons on the remote control handle or the electric control box 14; 6) When the drill rig is running, the work starts; 7) Shutdown sequence: negative pressure fan 9, vibrating screen 3, screw conveyor 2, plunger pump 8, hydraulic pump station 5.

[0024] Working process and principle: 1. When the drill rig is working, the coal slime water and gas generated by the drill rig fall into the pipe through the receiving hopper on the drill rig. The pipe is communicated with the feed inlet 16, so the coal slime water and gas flow along the pipe into the feed inlet 16 of the gas-water separation tank 6. Since the gas is gas, the gas floats to the gas extraction port 15, and the gas extraction port 15 is connected to the coal mine gas negative pressure pipe, so the gas will be smoothly drawn into the gas negative pressure pipe. And the coal slime water flows to the bottom of the gas-water separation tank 6, realizing the separation of gas and coal slime water. If the coal mine does not contain gas and there is no need to extract gas, the gas negative pressure pipe can not be connected;

[0025] 2. When the negative pressure fan 9 operates, a large negative pressure will be generated. The coal slime water buffer chamber 4 under the negative pressure fan 9 is airtight, and the generated negative pressure will suck the coal slime water in the gas-water separation tank 6 into the coal slime water buffer chamber 4 through the pipeline 10. When the coal slime water in the coal slime water buffer chamber 4 reaches a certain amount, the discharge door 7 will be automatically opened, and the coal slime water will flow out from the discharge door 7 and fall onto the vibrating screen 3;

[0026] 3. Under the high-frequency vibration of the vibrating screen 3, the large-particle coal slime will be dehydrated into dry-based coal slime and fall onto the screw conveyor 2. The screw conveyor 2 transports the material to the adjacent belt conveyor 11, and the coal slime water falling off the vibrating screen 3 enters the plunger pump 8. The plunger pump 8 transports the fine coal slime water to a designated location. If it is not necessary to transport the coal slime water by the plunger pump 8, the coal slime water can be discharged through the valve without passing through the plunger pump 8.

[0027] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the present utility model. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the technical solution of the present utility model.

Claims

1. A coal slurry water separation and transportation device for underground coal mines, characterized in that: The invention comprises a vehicle body (1), on which a screw conveyor (2), a vibrating screen (3), a coal slurry water buffer chamber (4), a hydraulic pump station (5) and an air-water separation box (6) are sequentially installed from left to right. The coal slurry water buffer chamber (4) is provided with a discharge door (7) located above the vibrating screen (3). A plunger pump (8) is installed in the vehicle body (1), and the plunger pump (8) is connected to the bottom of the vibrating screen (3). A negative pressure fan (9) is installed above the coal slurry water buffer chamber (4), and the negative pressure fan (9) is connected to the coal slurry water buffer chamber (4). The upper part of the coal slurry water buffer chamber (4) and the bottom of the air-water separation box (6) are connected via a pipeline (10). A belt conveyor (11) corresponding to the screw conveyor (2) is provided at the rear of the vehicle body (1).

2. The coal slurry water separation and transportation device for underground coal mine according to claim 1, characterized in that: A pump station motor (12) and a hydraulic operating lever (13) are mounted on the hydraulic pump.

3. The coal slurry water separation and transportation device for underground coal mine according to claim 1, characterized in that: An electric control box (14) is installed on the vehicle body (1).

4. The coal slurry water separation and transportation device for underground coal mine according to claim 1, characterized in that: The gas-water separation box (6) is provided with a gas extraction port (15) and a material inlet (16).

5. The coal slurry water separation and transportation device for underground coal mine according to claim 1, characterized in that: A crawler track (17) is installed below the vehicle body (1).

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