What is mining self rescuer?

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What is mining self rescuer?

Self-rescue device is a kind of portable breathing protective device to prevent harmful gas poisoning or hypoxic asphyxia when fire, gas, coal dust explosion and coal and gas outburst occur in underground mine. Self-rescue device is a small, light weight, portable equipment to protect personal respiratory organs. The main purpose of rescue is that when an accident occurs in the underground coal mine, miners wear it to quickly leave the disaster area through the lanes filled with harmful gases. According to its working principle, self-rescue devices can be divided into two categories: filter self-rescue devices and isolation self-rescue devices. Isolated self-rescue device can be divided into chemical oxygen self-rescue device and compressed oxygen self-rescue device according to the principle of oxygen generation. The composition, working principle and matters needing attention of filter self-rescue device, chemical oxygen self-rescue device and compressed oxygen self-rescue device are introduced in detail.

The self-rescue device is a kind of breathing protective instrument for individual use of miners, which is small in size and portable, but has short working time. The main purpose is that when an accident occurs in the underground coal mine, miners wear it to quickly leave the disaster area through the lanes filled with harmful gases. Therefore, the Regulation stipulates that “every person entering the well must carry a self-rescue device with him”.

Classification of self-rescuers

According to its working principle, self-rescue devices can be divided into two categories: filter self-rescue devices and isolation self-rescue devices.

Isolated self-rescue device can be divided into chemical oxygen self-rescue device and compressed oxygen self-rescue device according to the principle of oxygen generation.

Filter self-rescue device

It is a respiratory protector that oxidizes poisonous air into non-poisonous air for the wearer to breathe by using a filter equipped with chemical oxidants.

Chemical oxygen self-rescuer

It is a breathing protector that uses chemical oxygen-generating substances to generate oxygen for wearers to evacuate from disaster areas to escape from danger.

Compressed oxygen self-rescuer

It is an isolated respiratory protector using compressed oxygen for oxygen supply, and it is a self-rescue device that can be used repeatedly.

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