| 摘要 |
FIELD: mining industry; applicable in prevention and extinguishing of fires in coal mines. SUBSTANCE: installed on main body, on its second rarefaction chamber is additional conical branch pipe with bin on its top for supply of pulp filling material (gypsum, cement fly ash, inert dust, etc). Installed at outlet of knee diffuser behind screw foam stabilizer is circular header with pipeline supplying additional gas flow in direction of stabilization to pipe of cased hole by means of directed nozzles which are oriented in direction of screw stabilizer motion. In this case, conical sleeve with outlet pipe forming the second rarefaction chamber has perforation on its lower conical part. EFFECT: higher efficiency of exogenous fires control in mine worked-out spaces through holes drilled from surface. 2 cl, 1 dwg
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