Coal mine gas over-limit ventilation device for coal mining

Abstract

The utility model provides a coal mine gas over-limit ventilation device for coal mining, and relates to the field of coal mining. The coal mine gas over-limit ventilation device for coal mining comprises a filter bin, a moving mechanism is arranged at the bottom of the filter bin and comprises a power wheel and a limiting plate, and a circulating mechanism is arranged in the filter bin and comprises a power fan, a gas detector and an exhaust pipeline. And a filtering mechanism is arranged in the middle of the filtering bin. According to the coal mine gas over-limit ventilation device for coal mining, the filtering bin is controlled to move through the power wheel, the filtering bin is adjusted to a proper position, air in a pit hole flows in the filtering bin and a mine hole through the power fan, the gas concentration in the air is monitored in real time through the gas detector, and the gas in the pit hole is discharged through the discharging pipeline. And when the gas concentration is high, air in the pit hole is quickly discharged to the outside, so that the gas concentration in the mine hole is quickly reduced, and the mine hole ventilation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ventilation device for coal mining, in particular to a coal mine gas over-limit ventilation device for coal mining, belongs to coal mine technical field. BACKGROUND

[0002] Coal mine is the area that human beings mines coal resources in the coal-rich mining area, and is generally divided into underground coal mine and open coal mine. When the coal seam is far from the ground surface, generally selects to excavate the roadway to mine coal, which is the underground coal mine. Coal seam often accompanies the existence of gas. Gas is easy to cause explosion accidents. Therefore, when working in a closed space, it is necessary to frequently monitor the gas concentration.

[0003] The utility model of patent CN222276716U discloses a coal mine gas over-limit ventilation device for coal mining in the technical field of coal mining, which comprises a box body, a ventilation pipe is installed on the top of the box body, a filter plate is arranged in the ventilation pipe, an activated carbon plate is arranged on one side of the filter plate, a fan is installed on one side of the activated carbon plate through a support, universal wheels are installed at the bottom corners of the box body, support assemblies are arranged on both sides of the box body, the utility model can increase the contact area and friction force between the device and the ground through the cooperation of the fixing plate, threaded rod, threaded sleeve, support plate, non-slip pad, limiting rod and turntable, thereby improving the stability of the device during use, preventing the device from being displaced by external force, and ensuring the normal use of the device.

[0004] During underground coal mining, the gas concentration inside the mine tunnel needs to be detected to reduce accidents. Although the device in the above patent improves the stability, it is difficult to quickly transport the air from the ground to the outside when the gas concentration increases, reducing the ventilation effect. Therefore, we provide a coal mine gas over-limit ventilation device for coal mining to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve the above problems and provides a coal mine gas over-limit ventilation device for coal mining to solve the problem of difficult gas gas rapid transportation to the outside in the prior art.

[0006] The utility model is implemented through the following technical solutions: a coal mine gas over-limit ventilation device for coal mining.

[0007] The utility model relates to a coal mine gas over-limit ventilation device for coal mining, which has the following beneficial effects:

[0008] Preferably, the power wheel is rotatably connected to the filter bin, and the surface of the limiting plate is fixedly connected with equidistantly arranged fixed anchor nails.

[0009] Preferably, the middle part of the filter bin is fixedly connected with an elevator, and the output end of the elevator is fixedly connected to the limiting plate.

[0010] Preferably, the surface of the filter bin is fixedly connected with a first electromagnetic valve and a second electromagnetic valve, the outer exhaust pipeline is fixedly connected to the second electromagnetic valve, a microprocessor is installed in the filter bin, and the gas detector, the first electromagnetic valve and the second electromagnetic valve are electrically connected to the microprocessor.

[0011] Preferably, the surface of the filter bin is fixedly connected with two groups of fixed buckles, and each fixed buckle is clamped to the middle part of the filter frame.

[0012] Preferably, the inside of the filter bin is fixedly connected with a sealing gasket, and the filter frame and the sealing gasket are in mutual abutment.

[0013] Preferably, the surface of the filter frame is fixedly connected with a sealing ring, and the sealing ring is in close abutment with the filter bin.

[0014] The utility model provides a coal mine gas over-limit ventilation device for coal mining, which has the following beneficial effects:

[0015] 1. The coal mining gas over-limit ventilation device for coal mining, through the power wheel control filter bin moves, can with the coal mining progress, adjust the filter bin to the appropriate position, improve the mine gas concentration efficiency, through the limiting plate, with the ground contact each other, to the filter bin fixed positioning, improve the stability of the filter bin use, through the power fan extraction outside air, make the pit inside air in filter bin and mine flow, through the gas detector, real-time detection of gas concentration in the air, improve the accuracy and convenience of gas detection, through the exhaust pipe, when the gas concentration is higher, the pit inside air is discharged to the outside world quickly, and control the air intake equipment to suck the fresh air outside, and then quickly reduce the gas concentration in the mine, improve the mine ventilation efficiency, through the filter frame, the dust filter block and activated carbon plate are fixed, through the dust filter block, the coal dust is adsorbed and purified, the dust content in the mine is reduced, through the activated carbon plate, the toxic gas such as gas is adsorbed, the air in the mine is simply filtered, and the safety of the coal mining environment is improved.

[0016] 2. The coal mining gas over-limit ventilation device for coal mining, through the fixed anchor, the grip ability of the limiting plate is increased, the vibration caused by coal mining is avoided to cause the filter bin to slip, the stability of the filter bin operation is improved, the elevator is used for controlling the limiting plate to move up and down, when the filter bin position needs to be fixed, the elevator controls the limiting plate to move downward to fix the filter bin, when the filter bin needs to be moved, the elevator controls the limiting plate to move upward, the filter bin is moved, the stability of the filter bin movement is improved, the first electromagnetic valve and the second electromagnetic valve are used for controlling the air discharge position of the filter bin, when the gas concentration is low, the first electromagnetic valve is opened, the air is discharged into the mine, when the gas concentration is high, the second electromagnetic valve is opened, the air is discharged to the outside world through the exhaust pipe, the mine ventilation efficiency is improved, the microprocessor is used for controlling the first electromagnetic valve and the second electromagnetic valve to be opened or closed, the mine ventilation efficiency is improved, the two groups of fixed buckles are used for improving the fixing capacity of the filter frame, the fixed buckle is used for reducing the dismounting difficulty of the filter frame, the filter frame fixing, dismounting and replacing efficiency is improved, the sealing gasket is used for sealing the gap between the filter frame and the filter bin, the air filtering effect of the filter frame is improved, the sealing ring is used for sealing the gap between the filter frame and the filter bin, the air leakage on the surface of the filter bin is reduced, and the air purification effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is whole structure schematic diagram of the utility model;

[0018] Figure 2 It is filter bin cross section structure schematic diagram of the utility model;

[0019] Figure 3 It is filter mechanism structure schematic diagram of the utility model;

[0020] Figure 4 The utility model discloses a limiting plate connecting structure schematic view.

[0021]

Main component symbol explanation

[0022] 1, filter bin;

[0023] 2, moving mechanism;201, power wheel;202, limiting plate;203, fixed anchor;204, elevator;

[0024] 3, circulation mechanism;301, power fan;302, gas detector;303, first electromagnetic valve;304, second electromagnetic valve;305, external exhaust pipeline;306, microprocessor;

[0025] 4, filter mechanism;401, filter frame;402, fixed buckle;403, sealing gasket;404, sealing ring;405, dust filter block;406, activated carbon plate. DETAILED DESCRIPTION

[0026] The utility model embodiment provides a coal mine gas over limit ventilation device for coal mining.

[0027] Please refer to Figure 1 And Figure 4 , including filter bin 1, the bottom of filter bin 1 is provided with moving mechanism 2, moving mechanism 2 includes power wheel 201 and limiting plate 202, moves through power wheel 201 control filter bin 1, can along with the progress of coal mining, adjust filter bin 1 to the appropriate position, improve the efficiency of mine gas concentration, through limiting plate 202, with the ground mutual contact, fixes the positioning of filter bin 1, improves the stability of filter bin 1 use.

[0028] Power wheel 201 is rotationally connected with filter bin 1, and the surface of limiting plate 202 is fixedly connected with equidistantly arranged fixed anchors 203, the fixed anchors 203 are used to increase the grip ability of limiting plate 202, avoid the vibration caused by coal mining to cause filter bin 1 to slip, and improve the stability of filter bin 1 operation.

[0029] The middle part of filter bin 1 is fixedly connected with elevator 204, and the output end of elevator 204 is fixedly connected with limiting plate 202, through elevator 204, limiting plate 202 moves up and down is controlled, when needing to fix the position of filter bin 1, elevator 204 controls limiting plate 202 to move down, and filter bin 1 is fixed, when needing to move filter bin 1, elevator 204 controls limiting plate 202 to move up, and filter bin 1 is moved conveniently, and the stability of filter bin 1 movement is improved.

[0030] Please refer to Figure 2The inside of the filtering bin 1 is provided with a circulating mechanism 3, which comprises a power fan 301, a gas detector 302 and an external exhaust pipeline 305, and the power fan 301 and the gas detector 302 are fixedly communicated with the filtering bin 1, the external air is extracted by the power fan 301, so that the air in the pit flows in the filtering bin 1 and the mine, the gas concentration in the air is detected in real time by the gas detector 302, the accuracy and convenience of gas detection are improved, the air in the pit is quickly discharged to the outside through the external exhaust pipeline 305 when the gas concentration is high, and the fresh air outside is sucked by the air inlet equipment, so that the gas concentration in the mine is quickly reduced, and the mine ventilation efficiency is improved.

[0031] The surface of the filtering bin 1 is fixedly communicated with a first electromagnetic valve 303 and a second electromagnetic valve 304, and the external exhaust pipeline 305 is fixedly communicated with the second electromagnetic valve 304, the air discharge position of the filtering bin 1 is controlled through the first electromagnetic valve 303 and the second electromagnetic valve 304, the air is discharged into the mine through the opening of the first electromagnetic valve 303 when the gas concentration is low, the air is discharged to the outside through the external exhaust pipeline 305 when the gas concentration is high, and the mine ventilation efficiency is improved.

[0032] A microprocessor 306 is installed in the inside of the filtering bin 1, and the gas detector 302, the first electromagnetic valve 303 and the second electromagnetic valve 304 are electrically connected with the microprocessor 306, and the power fan 301, the elevator 204 and the power wheel 201 are electrically connected with the microprocessor 306, the power fan 301, the elevator 204 and the power wheel 201 can be controlled to operate through the microprocessor 306, the first electromagnetic valve 303 and the second electromagnetic valve 304 are controlled to be opened or closed through the microprocessor 306, and the mine ventilation efficiency is improved.

[0033] The elevator 204, the power wheel 201, the power fan 301, the gas detector 302, the first electromagnetic valve 303, the second electromagnetic valve 304 and the microprocessor 306 are prior art, and the detailed parameters and models thereof will not be described in detail.

[0034] Please refer to Figure 1 and Figure 3 again, the middle part of the filtering bin 1 is provided with a filtering mechanism 4, the filtering mechanism 4 comprises a filtering frame 401, the inside of the filtering frame 401 is fixedly communicated with a dust filtering block 405 and an activated carbon plate 406, the dust filtering block 405 and the activated carbon plate 406 are fixed through the filtering frame 401, the coal dust is adsorbed and purified through the dust filtering block 405, the dust content in the mine is reduced, the toxic gas such as gas is adsorbed through the activated carbon plate 406, the air in the mine is simply filtered, and the safety of the coal mining environment is improved.

[0035] The surface of the filtering bin 1 is fixedly connected with two groups of fixed buckles 402, and each fixed buckle 402 is clamped with the middle part of the filtering frame 401, through the two groups of fixed buckles 402, the fixing capacity of the filtering frame 401 is improved, through the fixed buckles 402, the dismounting difficulty of the filtering frame 401 is reduced, and the fixing, dismounting and replacing efficiency of the filtering frame 401 is improved.

[0036] The inside of the filtering bin 1 is fixedly connected with a sealing gasket 403, and the filtering frame 401 and the sealing gasket 403 are in mutual abutment, through the sealing gasket 403, the gap between the filtering frame 401 and the filtering bin 1 is sealed, and the air filtering effect of the filtering frame 401 is improved.

[0037] The surface of the filtering frame 401 is fixedly connected with a sealing ring 404, and the sealing ring 404 is in close abutment with the filtering bin 1, through the sealing ring 404, the sliding position between the filtering frame 401 and the filtering bin 1 is sealed, the air leakage of the surface gap of the filtering bin 1 is reduced, and the air purification effect is improved.

[0038] In use, the filtering bin 1 is moved by the power wheel 201, the filtering bin 1 is adjusted to a suitable position, the limiting plate 202 is moved downward by the elevator 204, the fixed anchor nail 203 is inserted into the inside of the mine, the position of the filtering bin 1 is fixed, the power fan 301 is started, the air inside the mine is extracted, the gas detector 302 is used for monitoring the gas concentration in the air in real time, the dust filtering block 405 is used for adsorbing and purifying coal dust, the activated carbon plate 406 is used for adsorbing toxic gases such as gas, when the gas concentration is low, the first electromagnetic valve 303 is opened, air is discharged into the mine, when the gas concentration is high, the second electromagnetic valve 304 is opened, air is discharged to the outside through the exhaust pipe 305, meanwhile, the air inlet equipment in the mine is controlled to start, fresh air outside is sucked to supplement the inside of the mine, thereby, the gas concentration inside the mine is rapidly reduced, the mine ventilation efficiency is improved, and the safety of the coal mining environment is improved.

[0039] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A coal mine gas over-limit ventilation device for coal mining, comprising a filter bin (1), characterized in that: The bottom of the filter bin (1) is provided with a moving mechanism (2), the moving mechanism (2) comprises a power wheel (201) and a limiting plate (202), the inside of the filter bin (1) is provided with a circulating mechanism (3), the circulating mechanism (3) comprises a power fan (301), a gas detector (302) and an external exhaust pipe (305), and the power fan (301) and the gas detector (302) are fixedly communicated with the filter bin (1), the middle part of the filter bin (1) is provided with a filtering mechanism (4), the filtering mechanism (4) comprises a filter frame (401), the inside of the filter frame (401) is fixedly communicated with a dust filter block (405) and an activated carbon plate (406), the surface of the filter bin (1) is fixedly communicated with a first electromagnetic valve (303) and a second electromagnetic valve (304), and the external exhaust pipe (305) is fixedly communicated with the second electromagnetic valve (304), the inside of the filter bin (1) is provided with a microprocessor (306), and the gas detector (302), the first electromagnetic valve (303) and the second electromagnetic valve (304) are electrically connected with the microprocessor (306).

2. The coal mine gas over-limit ventilation device for coal mining according to claim 1, characterized in that: The power wheel (201) is rotatably connected with the filter bin (1), and the surface of the limiting plate (202) is fixedly connected with equidistantly arranged fixed anchor nails (203).

3. The coal mine gas over-limit ventilation device for coal mining according to claim 1, characterized in that: The middle part of the filter bin (1) is fixedly connected with an elevator (204), and the output end of the elevator (204) is fixedly connected with the limiting plate (202).

4. The coal mine gas over-limit ventilation device for coal mining according to claim 1, characterized in that: The surface of the filter bin (1) is fixedly connected with two groups of fixed buckles (402), and each fixed buckle (402) is clamped with the middle part of the filter frame (401).

5. The coal mine gas over-limit ventilation device for coal mining according to claim 1, characterized in that: The inside of the filter bin (1) is fixedly connected with a sealing gasket (403), and the filter frame (401) and the sealing gasket (403) are in mutual abutment.

6. The coal mine gas over-limit ventilation device for coal mining according to claim 1, characterized in that: The surface of the filter frame (401) is fixedly connected with a sealing ring (404), and the sealing ring (404) is in close abutment with the filter bin (1).

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