| 摘要 |
FIELD: fire-fighting means. ^ SUBSTANCE: invention relates to fire-fighting equipment, in particular to devices for fire isolation with sand and soil, and extinguishing with dry chemical powder. The device for fire isolation comprises a compressor driven by an internal combustion engine, a hopper for sand, a jet blower. The jet blower is connected to the hopper through a valve to regulate the flow of sand and to the compressor through the valve for controlling the air supply, as well as with a hose for feeding sand-air mixture in the barrel. Hopper feed opening is closed on both sides with grids mounted at an angle of 35-45 degrees to the plane of the opening. In the mixing chamber of the jet blower a feeder tube is installed, which upper end is connected to the flap and the bottom is closed with a stopper. In the feeder tube there is a radial hole located coaxially with the holes in the nozzle of the compressed air supply to the blower and the confuser. ^ EFFECT: invention enables to reduce the time required to prepare the device for work, to use ground and sand for fire isolation. ^ 1 cl, 2 dwg |
