DEVICE FOR LOCALIZATION OF EXPLOSIONS OF DUST GAS-AIR MIXTURES IN UNDERGROUND MINING OPERATIONS

摘要

The proposed utility model relates to the mining industry, in particular, to the technology and technical means of protecting industrial and other personnel located in underground mines, equipment housed in them and the underground mines themselves from explosions of coal gas mixtures and / or coal dust mixture) contained in the atmosphere of coal mines.;The technical problem, the solution of which is provided by the present utility model, is minimization of the axial dimensions and improving the manufacturability of the assembly and preparation of the device for localizing explosions for use, as well as increasing the turnaround time of its service by optimizing the layout by selecting the location for fitting the compressed gas to the high pressure and instrument for measuring the pressure in it relative to other elements of the device.;This technical problem is solved by the fact that in a device for localizing explosions of dust-gas-air-air mixtures in underground mines, including a container filled with fire extinguishing powder, a high-pressure chamber inside the tank with exhaust holes extending into the container and covered by a movable piston located inside the high-pressure chamber, and a trigger mechanism allowing the movable piston to be actuated, allowing the opening of the exhaust ports, while the high-pressure chamber is equipped a fitting for filling it with compressed gas and a device for measuring the pressure in it, a fitting for filling the high-pressure chamber with compressed gas is placed on the front end of the high-pressure chamber, and an instrument for measuring the pressure in it placed protruding beyond the lateral surface of the container.