Water isolation type coal mine refuge chamber transition chamber and method for entering chamber

Abstract

The invention relates to a water isolation type coal mine refuge chamber transition chamber and a method for entering the chamber to solve the problem of harmful gas isolation in the chamber entering process of an existing underground coal mine refuge chamber. The structure of the transition chamber comprises a chamber surrounding wall (1), a transition chamber outside door wall (2), a transition chamber middle wall (3), a transition chamber inside door wall (4), a transition chamber outside safety door (5), a water storage basin (6), a transition chamber inside safety door (7), a midfeather air-tight door (8) and a midfeather observation window (9). When entering into the chamber, a miner takes off thick and heavy outerwear, opens the refuge chamber outside safety door (5), dives into the transition chamber water storage basin (6), passes through a lower channel of a middle separation board, and then opens the inside safety door (7) to enter into a personnel survival chamber.

Description

technical field [0001] The invention relates to the field of mine disaster rescue technology and equipment, in particular to a transition chamber and an entry method for an underground refuge chamber in a coal mine. Background technique [0002] my country is the largest coal producing and consuming country in the world. However, various coal mine accidents occur frequently and the death toll remains high. At present, the country is vigorously promoting the construction of coal mine emergency escape system, in which the underground refuge chamber can provide a refuge for those in distress who cannot safely ascend the shaft in an emergency, so as to wait for rescue. [0003] At present, the coal mine underground refuge chamber structures required in the relevant national regulations and known to be built are all composed of personnel survival chambers and transition chambers. The main function of the transition room is to block and remove the harmful gases (carbon monoxide, ...

AI Technical Summary

Problems solved by technology

However, after the mine accident occurred, when the underground roadway was covered with a large amount of high-concentration poisonous and harmful gases, the above method could not effectively block and remove the people in distress when they entered the chamber.

Once the high concentration of toxic and harmful gas enters the survival room of the refuge chamber, it will be more difficult to remove, making the follow-up function of the refuge chamber completely invalid

In addition, the use of air curtain and spray method requires a large number of compressed air bottles in the transition room, which will increase the space of the transition room

Moreover, people in distress need to enter the transition room in a relatively concentrated manner or squeeze all of them into the transition room at one time for gas spray treatment, which may cause chaos on the scene and is not conducive to quick and effective avoidance.

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