Hydraulic outburst prevention drilling machine for coal seam gas drainage

The utility model discloses a hydraulic outburst prevention drilling machine used for coal seam gas drainage. The hydraulic outburst prevention drilling machine comprises a drilling machine frame; a drilling machine swivel gear assembly is arranged on the drilling machine frame; a guide rail is hori...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LI ZHIBEN, ZHANG GUOWANG, MA JINYING, CHEN CHANGHE, FU XIAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
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