High-pressure small jet coal and gas outburst control device

Abstract

The invention discloses a high-pressure small jet coal and gas outburst control device which comprises a high-pressure water gun, a high-pressure water pipeline, a hydraulic motor, a walking vehicle, a high-pressure hose, a hydraulic remote control pump station and an explosion-proof monitor device, wherein the high-pressure water gun is connected with the high-pressure water pipeline through the high-pressure hose, the hydraulic motor and the high-pressure water gun are both installed on the walking vehicle, a gear installed at the output shaft end of the hydraulic motor is in meshing transmission with a rack arranged at the bottom of a gun barrel of the high-pressure water gun, the hydraulic motor is connected with the hydraulic remote control pump station through a high-pressure oil pipe, and the explosion-proof monitor device comprises an explosion-proof camera and an explosion-proof display. The device fulfills the function of protecting a tunneling constructer and also has the functions of accelerating the tunneling working face advance, reasonably arranging a cohesion sequence of a working face, lowering the investment on gas control and enhancing the production efficiency. The use of the device can change the construction technology in the outburst coal seam tunneling operation process, accelerate the tunneling and also enhance the safety coefficient of the tunneling work.

Description

technical field [0001] The invention relates to a rapid excavation device for a coal and gas outburst mine working face, in particular to a high-pressure small jet flow prevention and control device for coal and gas outburst. Background technique [0002] During the excavation process of the coal and gas outburst mine face, the measures adopted by traditional methods mainly include loosening blasting, advanced discharge drilling, deep hole controlled pressure relief blasting, unloading pressure grooves along the periphery of the roadway, and hydraulic fracturing, hydraulic loosening, and hydraulic pressure relief. Extrusion, hydraulic cutting and other hydraulic measures, but these measures have limitations. For example, loose blasting is mainly suitable for weakly outburst coal seams with hard coal quality and low outburst strength; the construction time of advanced discharge drilling is long, the effective action distance of measures is short, and the rate of exceeding the...

AI Technical Summary

Problems solved by technology

The limitations of these traditional methods have brought certain restrictions to the rapid excavation work and seriously affected the work efficiency of excavation.

Images