Mine rescue drilling air pressure maintenance ventilation method and equipment

Abstract

The invention relates to the technical filed of mine drilling, in particular to a ventilating method for air pressure maintaining for drilling in mine rescue and ventilating equipment for air pressure maintaining for drilling in mine rescue. The ventilating method comprises the steps that a surface drilling position corresponding to an underground mine is confirmed; drilling operation is conducted at the drilling position, an operating well is drilled out, and an orifice pipe is poured at the circumferential well wall of the operating well; drilling is conducted at the bottom of the operating well by adjusting diameter, and a drill stem is stretched into the mine; a circulating pipeline inside the drill stem is cut off; air circulating outside the drill stem is cut off; ventilating is conducted; air is supplied into the mine through the circulating pipeline through a draught fan, when the air pressure inside the mine exceeds a preset air pressure threshold value, an over-pressure component penetrating through a swelling capsule is opened, and the air is exhausted to the ground surface. The ventilating equipment for air pressure maintaining for drilling in mine rescue can realize the method. The ventilating method and equipment for air pressure maintaining for drilling in mine rescue solve the problem that living space of a trapped person shrinks or disappears due to the decompression of the mine when a drillhole gets through the underground mine.

Description

technical field [0001] The invention relates to the technical field of mine drilling, in particular to a mine rescue drilling air pressure maintaining ventilation method and a mine rescue drilling air pressure maintaining ventilation device. Background technique [0002] Flood disasters occur frequently in coal mines in my country, causing hundreds of deaths every year, some of which are caused by air leakage from rescue boreholes and secondary flooding of refuge spaces. For example, in 2013, a mine in Shanxi was flooded due to water inrush from an old mine, and 12 people were trapped in two pressurized "bubble" areas underground. After the disaster, the government organized rescue and relief efforts. One of the main methods of rescue was to quickly drill and deliver food and air to the 10 trapped people in the underground mine. After the drilling was opened, the air leaked out under the action of water pressure, the "bubble" space was flooded for the second time, and 10 pe...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a mine rescue drilling air pressure maintaining ventilation method to solve the problem that the living space of the trapped people is reduced or disappeared due to the mine pressure relief when the underground mine is drilled.

[0006] The purpose of the present invention is also to provide a mine rescue drilling air pressure maintaining ventilation equipment, which is used to solve the problem that the living space of the trapped people is reduced or disappeared due to the pressure relief of the mine when the underground mine is drilled.

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