Dustproof ventilation equipment for coal mining

The invention relates to the field of ventilation equipment, in particular to dustproof ventilation equipment for coal mining. Comprising a filter pipe which is installed at the joint of a ventilation pipe and has the same inner diameter as the joint of the ventilation pipe, a middle pipe which is c...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	DONG YUANJIA, LIU YONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS MINING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS SEPARATION TRANSPORTING
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