Ventilation device for coal mine ventilation and prevention exploitation

The utility model belongs to the technical field of coal mines, and discloses a ventilation device for coal mine ventilation and protection exploitation, which comprises a ventilation pipe used for leading in fresh air, supporting plates are fixedly connected to two ends of the peripheral side of th...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CAI BING, WU YI, CUI XINRU
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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