Underground mine drainage hole protection device

The utility model provides an underground mine drain hole protection device. The underground mine drain hole protection device comprises a supporting plate and a protection rod fixed to the bottom of the supporting plate. Wherein the supporting plate is erected on the ground of the outer edge of a d...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG JIAN, ZHANG HONGTAO, LI ZHIPENG, DUAN CHAOLIN, BAI FENGSHAN, LIU YANG, WANG WEIFENG, WANG XINPENG, JU ZHANYONG, HUANG XIAODONG, NIU ZEFENG
Format:	Patent
Sprache:	chi ; 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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