Milling coal hole blocking prevention device for coal mine

The utility model discloses a milling coal hole blocking prevention device for a coal mine, and belongs to the field of coal mine machinery. The milling coal hole blocking prevention device comprises a coal bunker, a locking wellhead, a coal feeding opening, a liquid conveying pipe and a pressure ve...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LI FENG, ZHENG YUSHAN, YUE XI, LIU TAO, GUO LANFEI
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS MINING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
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