A self-contained chemical oxygen supply purification device for mine emergency avoidance system

Abstract

The invention relates to a self-aid chemical oxygen supply purification device of a mining emergency refuge system. The purification device comprises an oxygen supply purifying cabinet fixed on a pedestal; the top of the oxygen supply purifying cabinet is equipped with a cooler; a ventilation hood is arranged on the cooler; the front surface of the oxygen supply purifying cabinet is provided with a door, and the back surface of the oxygen supply purifying cabinet is provided with a plurality of water inlet and outlet pipes connected with the cooler; the inner wall of the oxygen supply purifying cabinet is provided with a plurality of pairs of load-bearing combined shelves which are vertically arranged in parallel, thereby forming inserting positions for disposition of an oxygen supply purifier; the pedestal is provided with an air regulator used for controlling air input. The purification device provided by the invention has dual functions of oxygen supply and CO2 purification; temperature distortion of a medicine plate is controllable, an air passageway is unobstructed, and the utilization rate of a traditional Chinese medicine plate in a low concentration CO2 environment is substantially increased; the device does not need power and is simple to operate, safe to store and applicable to oxygen supply and purification environment of the mining emergency refuge system.

Description

technical field [0001] The invention belongs to the field of oxygen supply purification devices in mine emergency avoidance systems, in particular to a self-contained chemical oxygen supply purification device for mine emergency avoidance systems. Background technique [0002] According to the surveys of mine accidents in various countries in the world, miners who were injured and died instantly at the scene of fires, explosions and other accidents accounted for only a small part of the total number of accident casualties. Fleeing from the scene of toxic and harmful gas with high concentration, resulting in suffocation or poisoning death. How to provide a confined space for the trapped survivors to avoid the toxic gas environment and other injuries after the mine disaster occurs, provide them with necessary living conditions, and prolong their survival time until the rescuers arrive, which has become an important topic of mine rescue. This kind of confined space that provid...

AI Technical Summary

Problems solved by technology

[0004] However, the oxygen supply reaction of the existing potassium superoxide air regeneration device is affected by the ambient temperature and humidity, CO 2 Concentration has a great influence, and it does not match well with the human respiratory quotient. In mine hazard facilities, the environment is very harsh, the temperature and humidity are high, and the CO 2 The concentration requirement is strict and must not exceed 1%. If the general potassium superoxide air regeneration technology is still used, the following problems will be caused: 1. Due to the high content of potassium superoxide in the medicine board and the high ambient temperature and humidity, the oxygen production rate of the medicine board is fast and the oxygen production rate is high. A large amount, while absorbing CO 2 The speed is slow, the capacity is small, and it does not match the human respiratory quotient. When the CO in the hedging facility 2 When more than 1% O 2 There is still a large amount of surplus, which has to be replaced, resulting in great waste; 2. The temperature and humidity in the mine safety facilities are high, the side reactions of potassium superoxide are many, the reaction selectivity is low, and the phenomenon of expansion and gelatinization after moisture absorption is very serious, and The heating deformation of the drug board is very large. The above-mentioned drug board and the device cannot effectively suppress these phenomena, which not only brings difficulties to the operation, but also easily blocks the air passage, resulting in unreacted or incomplete reactions in some areas of the drug board, and low utilization of the drug board.

3. The regeneration reaction of potassium superoxide releases a lot of heat. If it is not controlled, it will increase the cooling capacity and cost of the hedging system

Images