Compressed oxygen self-rescuer with mask and filtering method thereof

Abstract

The invention relates to a compressed oxygen self-rescuer with a mask. The compressed oxygen self-rescuer comprises a self-rescuer body and a spraying mechanism, wherein the spraying mechanism is located at the lower end of the self-rescuer body and used for absorbing, purifying and discharging the smoke while discharging the oxygen; the self-rescuer body comprises a musk body, a rope belt and a filtering mechanism, wherein the musk body is connected to the upper end of the self-rescuer body; the two ends of the rope belt are connected to the two sides of the edge of the mask body respectively; the upper end of the filtering mechanism is connected to the lower end of the spraying mechanism; and the spraying mechanism can drive the filtering mechanism to be used for extracting the smoke into the filtering mechanism from one side outside the filtering mechanism, and then the smoke is guided into the spraying mechanism through the upper end of the filtering mechanism to be removed. The self-rescuer has the beneficial effects that mine dust particles in the smoke can be filtered and removed before the smoke is purified by a spraying device, the mine dust particles are prevented from hindering the purification of the self-rescuer on the smoke, and the use effect is good.

Description

technical field [0001] The invention relates to the technical field of self-rescuers, in particular to a compressed oxygen self-rescuer with a mask and a filtering method thereof. Background technique [0002] When working underground in coal mines, it is necessary to wear a self-rescuer to escape safely in the event of a dangerous situation. Among them, the compressed oxygen self-rescuer is the most common underground self-rescuer in coal mines. When a fire occurs, it is often accompanied by a large amount of smoke. These thick The smog not only hinders breathing, but also blocks the sight of the escaped personnel, making it impossible for the escaped personnel to see the surrounding fire conditions and road conditions, which greatly increases the difficulty of escaping. [0003] China Authorized Notice No. (Invention) CN111420315B discloses a compressed oxygen self-rescuer with high safety performance, including a self-rescuer body, an oxygen storage chamber is opened on t...

AI Technical Summary

Problems solved by technology

[0005] Smoke is generated when a fire occurs, and the underground environment of coal mines is relatively complicated, and there are many large particles of mineral dust mixed in the air. When the above invention extracts the air containing smoke near the self-rescuer, a part of the mineral dust may be sucked into the vertical pipe. Then into the exhaust pipe, some larger mineral dust particles are easy to get stuck in the first spring, causing the first spring to fail to expand and contract normally, which hinders the above-mentioned self-rescuer from purifying the smoke

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