Coal mine safety airbag

Abstract

The invention discloses a coal mine safety airbag which is suitable for life safety protection of miners in accidents such as gas explosion, protrusion and roof falling in coal mines. A breathing inner bag is connected with a breathing device; a positioner is arranged outside the breathing inner bag; an outer bag is formed by a breathing inner bag outer layer, a plurality of buffering airbags, a telescopic metal skeleton and an outer-layer protection layer; a gas generator is placed in the inner bag outside the buffering airbags; a manual switch and a sensor are connected with the gas generator; exhaust valves are arranged on the buffering airbags; the outer-layer protection layer of the outer bag is provided with an arc zipper inlet; the telescopic metal skeleton is connected with the outer-layer protection layer. According to the coal mine safety airbag disclosed by the invention, personnel danger avoidance after the mine accidents, such as the coal and gas explosion, protrusion and roof falling, can be effectively carried out; the coal mine safety airbag is an effective disaster avoiding measure adopted by the miners under the emergency condition; personnel casualties are reduced; valuable time is bought for mine emergency rescue.

Description

technical field [0001] The invention relates to the protection of personal safety after disasters such as coal and gas outburst in coal mines, roof caving, floods, etc., in particular to a coal mine safety airbag. Background technique [0002] At present, my country's coal mines are dominated by underground mining, and there are mainly disasters such as floods, fires, gas, mine dust, and roofs in the production process. According to statistics, the key state-owned mines threatened by water damage account for more than 48% of the total number of key state-owned mines. Mine gas is also one of the main factors threatening the safe production of coal mines in my country. According to statistics, coal mine gas accidents account for a relatively large proportion of major accidents in mines. From 2004 to 2009, there were 13 particularly serious accidents in coal mines, with 1,587 deaths. Among them, gas accidents 1227 people died, accounting for 77.32%; accident statistics also sho...

AI Technical Summary

Problems solved by technology

The movable rescue chamber is generally equipped with a rail wheel mechanism at the bottom of the rescue chamber, which can be moved within a certain range. However, due to its large size and non-retractable nature, the workplace generally needs excavation dedicated to install the movable rescue chamber. Cave chamber, if there is no cave chamber, it can be installed in the roadway, but it seriously affects the pedestrian and ventilation section of the roadway, and because the movable rescue cabin is large and heavy, it is inconvenient to move, so it is limited in use

It takes a lot of manpower and material resources to move the fixed rescue cabin once, and it generally does not move after installation

Although the rescue cabin can provide a relatively safe living condition for the people in the cabin, it either takes up the working space or needs to excavate a special storage space, and it is inconvenient to move, and the cost is generally high

Refuge chambers are generally special caverns, which require excavation of special roadways, which are expensive and cannot be moved

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