Mining negative-pressure fixed-point sampling system
A fixed-point sampling and negative pressure technology, applied in the direction of sampling devices, etc., can solve the problems of inconvenient moving and sampling operations, low work efficiency, complex structure, etc., achieve convenient moving and sampling operations, improve work efficiency, and simple device structure Effect
Active Publication Date: 2022-03-22
PINGDINGSHAN TIANAN COAL MINING
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Problems solved by technology
In the prevention and control of gas outburst disasters in coal mines, coal samples can be collected in the coal seam through the negative pressure top sampling device, and then the gas content of the coal seam can be checked by desorption method. Convenience, low work efficiency, therefore, urgently need to be improved
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[0025] like Figures 1~3 As shown, the mine negative pressure fixed-point sampling system provided by the present invention includes a movable drilling device and a movable coal sample collection device;
[0026] The movable drilling device includes a first trolley 1, a hydraulic pump station 2, an electric control cabinet 3 and a drilling rig. The bottom of the first trolley is provided with a lockable walking wheel, and the front end of the top is provided with two support rods 4. The rear end is provided with two hydraulic outriggers 5, the bottom of the drilling rig is provided with a mounting plate 6, the front end of the bottom of the mounting plate is hingedly connected with the top end of the support rod, and the rear end of the bottom is hingedly connected with the top end of the hydraulic outrigger, so The hydraulic pump station and the electric control cabinet are all located on the top of the first trolley and below the mounting plate. The hydraulic pump station is...
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The invention belongs to the technical field of coal mine gas sampling devices, and particularly relates to a mining negative pressure fixed-point sampling system which comprises a movable drilling device and a movable coal sample collecting device, the movable drilling device comprises a first trolley, a hydraulic pump station, an electric control cabinet and a drilling machine, and the drilling machine comprises a driving box and a hollow drill rod; the hollow drill rod is sequentially provided with a material guiding section, a polished rod section and a threaded section from front to back, and the driving box is used for providing driving force for rotation, drill feeding and drill retreating for the hollow drill rod; the movable coal sample collecting device comprises a second trolley, a sampling tank and a negative pressure pump, a gas-solid separation structure is arranged in the sampling tank, the sampling tank is detachably connected with a sampling box through a limiting mechanism, and a sampling port and an exhaust port are formed in the sampling tank. The device has the beneficial effects that through reasonable structural design, the device is simple in structure and convenient to move and sample, so that the working efficiency of a coal sample is favorably improved.
Description
technical field [0001] The invention belongs to the technical field of coal mine gas sampling devices, in particular to a mine negative pressure fixed-point sampling system. Background technique [0002] Coal seam gas content test is a basic work in coal mine gas disaster prevention and control, which not only restricts the accuracy of mine gas risk prediction, but also affects the reliability of subsequent gas prevention and control measures. In the prevention and control of gas outburst disaster in coal mines, coal samples can be collected in the coal seam through the negative pressure apex sampling device, and then the gas content of the coal seam can be measured by the desorption method. However, the existing negative pressure apex sampling device has a complex structure, and the movement and sampling operations are not It is convenient and has low work efficiency, so it is in urgent need of improvement. SUMMARY OF THE INVENTION [0003] In view of the above situation...
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IPC IPC(8): G01N1/08
CPCG01N1/08
Inventor 李延河李喜员焦继红王锋王玉杰王锋伟李辉李宏伟朱连芳
Owner PINGDINGSHAN TIANAN COAL MINING