PROCESS OF NEUTRALIZATION OF EXPLOSIVE METHANE AND COAL ATMOSPHERE IN MINES Russian patent published in 2002 - IPC

FIELD: mining industry, ventilation of breakage and preparatory faces. SUBSTANCE: proposed process includes supply of pressure water on to cutting drill bit of working tool of mining machine, atomization of water by cutting drill bit and air current. Pressure water is supplied over hydraulic giant shaft through ventilation wheel that supplies and directs air towards face and is put on hub of arrow-shaped working tool, behind cutting drill bit to form water curtain which separates face from mining machine and heading of portion of pressure water. Hydraulic giant shaft is mounted on arrow-shaped working tool. EFFECT: improved neutralization of methane and coal atmosphere. 2 dwg _