Dustproof semi-mask type individual escaping device for gas explosion under coal mine

Abstract

The invention relates to a dustproof semi-mask type individual escaping device for gas explosion under a coal mine. The dustproof semi-mask type individual escaping device comprises an automatic oxygen respirator, a dustproof semi-mask, and a control part. A shell of the automatic oxygen respirator is internally provided with an oxygen cylinder, a filter, a pressure reducing valve, a one-way valve, a CO2 absorbent, and the like; an electromagnetic valve is connected with a leather bag; a gas duct is connected with the one-way valve which is connected a central blank pipe in the CO2 absorbent; the leather bag is folded in a upper cover; and the bottom of the shell is enclosed. In the dustproof semi-mask, an electromagnetic switch, a filtering tank, a face contacting mask, and an air exhaling-inhaling valve are arranged on a base; a stopping valve is fixed on a driving shaft of the electromagnetic switch; and the face contacting mask is connected with the oxygen steel cylinder through an air tube. In the invention, an early warning signal sent by an early warning network is received through a super-regenerative type receiver module, and is decoded and amplified to an on-off controller for controlling the electromagnetic switch and the electromagnetic valve; the electromagnetic switch closes the air exhaling-inhaling valve of the face contacting mask; and the electromagnetic valve opens the oxygen steel cylinder to supply oxygen for the face contacting mask and gains precious time for escaping.

Description

technical field [0001] The invention relates to an underground gas explosion dustproof half-mask type individual escape device in a coal mine. Background technique [0002] Due to the rapid economic development, the demand for energy is also increasing rapidly. As a country that uses coal as the main raw material, the amount of coal mining is also increasing, so coal mine safety accidents also occur frequently and cause a large number of casualties. After analyzing a large amount of data on mine disaster sites and casualties, it was found that more than 90% of the deaths in underground work were caused by the inhalation of carbon monoxide gas after the gas explosion. [0003] There are life-saving cabins under some large mines. As long as the underground personnel can enter the life-saving cabin smoothly before and after the gas explosion accident, there will be no danger to their lives. There is no way for the device to save itself in a short time. [0004] For a long tim...

AI Technical Summary

Problems solved by technology

However, the response time of these "mini" products is as long as 1 to 2 minutes, and the sensitivity level is poor.

[0008] 2. Imported products with high sensitivity are expensive to more than 1,000 yuan. It is obviously meaningless to promote such products as accessories for individual equipment

[0009] 3 Pressure and vibration sensors will also cause malfunctions due to vibration during work, the impact of on-site equipment, and falling objects. It is conceivable how workers can produce with peace of mind, and each misoperation will cause psychological damage to them. how long will it take to fix

Images