Adaptable water-spraying nozzles for extinguishing underground mine fires Antonov, I [VMEI Lenin (Bulgaria)] 01 COAL, LIGNITE, AND PEAT; COAL MINES; FIRE EXTINGUISHERS; NOZZLES; BULGARIA; DESIGN; FIRE FIGHTING; SPRAYS; UNDERGROUND MINING; WATER; DEVELOPING COUNTRIES; EASTERN EUROPE; EUROPE; HYDROGEN COMPOUNDS; MINES; MINING; OXYGEN COMPOUNDS; UNDERGROUND FACILITIES; 012033* - Coal, Lignite, & Peat- Underground Mining- Mine Environment- (1987-) Discusses requirements made on water streams and water spraying nozzles used in extinguishing underground mine fires (dual-phase water/air stream, long-range water stream, symmetrical water stream). Discusses a nozzle developed at the VMEI Lenin research institute in Bulgaria. A cross-section of the adaptable water-spraying nozzle, built of a stationary casing and a rotating water-stream regulator, is presented. Capacity is 1-8 l/s, outlet pressure of water stream is 0.1-0.5 MPa and range of water stream is 0-40 m. 9 refs. Bulgaria 1989-09-01 Bulgarian Journal Article Journal Name: Minno Delo; (Bulgaria); Journal Volume: 44:5 Medium: X; Size: Pages: 25-27 https://doi.org/ [] 44:5 Journal ID: ISSN 0205-1699; CODEN: MDELA CLA; CLA-90-080318; EDB-90-129317 2010-12-30 6669982