Coal seam potential energy body physics blast control method

Abstract

A coal seam potential energy body physics blast control method uses a drill-push one-piece outburst prevention drilling machine and a coal-gas separator to work; the working method comprises the following steps: determining positions, depth, numbers, drilling angles, two-hole spacing and two-hole ending distance of drill holes; using a hydraulic system to provide horizontal and vertical support for the drilling machine, so the drill-push one-piece outburst prevention drilling machine becomes one piece with the tunnel; carrying out reference drilling on the coal seam so as to lay the base for sleeve devices and pushing work; using the coal-gas separator to replace a guide device, making safety leakage preparation, and carrying out regular drill-push work; adding drill rods and sleeves according to the maximum push distance of the drilling machine until the drill hole reaches the project designed depth. The method can leak and discharge gas or carbon dioxide in the coal seam potential energy body having physics blast risks, thus thoroughly preventing coal and gas protrude accidents, and providing safe production conditions for coal enterprise and miners.

Description

technical field [0001] The invention relates to safety production technology in the field of underground coal mining, in particular to a method for preventing and controlling the physical explosion of coal seam potential energy bodies. Background technique [0002] For a long time, coal and gas outburst dynamic disasters during coal mining have always plagued the coal mining process of underground coal mines. my country is the country with the most serious coal and gas outburst disasters in the world. The power disaster prevention technology in coal mining has always been listed as the top priority of safety production technology planning, but due to the inaccessibility of coal and gas outburst disasters. The reader of the "Regulations on the Prevention and Control of Coal and Gas Outbursts" describes coal and gas outbursts in this way: "Coal and gas outbursts are broken coal, rocks and gas under the joint action of in-situ stress and gas, which suddenly emerge from the coal...

AI Technical Summary

Problems solved by technology

Through the research and analysis and the comparison of the similarity and coincidence degree of natural phenomena, it is found that the coal and gas outburst dynamic disaster process is similar to the coal falling in blasting and explosive blasting, so it must also belong to the explosion category in nature. However, it belongs to the category of explosion, so it is not difficult for us to check it in, because currently there are only three types of explosions in the known nature: "physical explosion, chemical explosion, and nuclear explosion". Fission produces huge energy and causes huge destructive power, so it is clear at a glance that coal and gas outbursts do not belong to the category of nuclear explosions; looking at chemical explosions, not only will molecular changes occur, but the explosion must be The detonation of the detonation device will cause the explosion behavior, because in any coal and gas outburst accident, no one is detonated by something. Caused by the destruction of the living environment, coal and gas outburst disasters also do not belong to the category of chemical explosions in nature.

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