Automatic water draining device

The utility model relates to a water draining device for a coal mine water sump, particularly to an automatic water draining device, and solves the problems of time wasting, labor wasting and low production efficiency of the traditional manual water draining device under long coal mine working line....

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHANG XINMAN, GUO BAOMIN, LI YAZHEN, WANG BINGLIN, WANG ZHIGANG, YANG JUN, CAO HUAIJIAN, JI BO
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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