Coal mine downhole crawler type drilling and punching integrated equipment

Abstract

Coal mine downhole crawler type drilling and punching integrated equipment comprises a crawler type hydraulic drilling machine, a high-pressure-resistant sealing drill stem, a drilling and punching dual-purpose drill bit, a high-pressure rotation connector and a high-pressure water pump station, wherein the body of the high-pressure-resistant sealing drill stem penetrates and is fixed in the power head inner hole of the crawler type hydraulic drilling machine, a power head provides rotation speed and torque to the body of the high-pressure-resistant sealing drill stem, one end of the high-pressure-resistant sealing drill stem is connected with the high-pressure water pump station through the high-pressure rotation connector, the high-pressure water pump station provides high-pressure water needed by punching, the other end of the high-pressure-resistant sealing drill stem is connected with the drilling and punching dual-purpose drill bit, and hydraulic operations can be performed after drilling without replacing the drill bit. The coal mine downhole crawler type drilling and punching integrated equipment has the advantages that streamlined operations of coal mine downhole gas pressure relief, drilling and punching can be completed by the equipment, safe and efficient production of outburst mines is guaranteed, coal seam coal and gas outburst danger is eliminated, a regional pre-drainage gas drilling construction period is shortened, coal seam drilling and punching and gas extraction efficiency are increased, and gas disaster prevention and control cost is reduced.

Description

technical field [0001] The invention relates to equipment used in the field of coal mining, in particular to an integrated crawler-type drilling and punching equipment in coal mines. Background technique [0002] Coal is the main energy source in my country, accounting for more than 70% of the primary energy for a long time. With the rapid economic growth in recent years, the demand for coal has increased rapidly. The outburst disaster is serious and extends to the deep at a speed of 20 m / year. The high ground stress and gas pressure in the deep make the gas disaster more serious. According to policies and regulations, for high gas and outburst coal seams, regional gas prevention and control measures need to be taken before mining to reduce the gas content of coal seams and eliminate their outburst risks. Protective seam mining and pre-extraction of coal seam gas are the most economical and effective regional gas control measures. Mining areas (wells) that do not have the co...

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Problems solved by technology

[0004] The object of the present invention is to provide a crawler-type drilling and punching integrated equipment for underground coal mines, improve the structure of the drill bit, drill pipe and drilling rig, integrate the process of drilling and punching, and use a set of equipment of the present invention The construction process of drilling and punching can be realized with only one operation, which solves the problem of unmatched drilling and punching equipment, complex and redundant construction procedures, long construction period, large and complex equipment, low work efficiency, and human and material resource consumption. big problem

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