Ventilation device and underground pipe gallery

The ventilation device comprises a ventilation box, a draught fan and an air pipe, a ventilation cavity is formed in the ventilation box, an air opening communicated with the ventilation cavity is formed in the ventilation box, the draught fan is located in the ventilation cavity, the air pipe is at...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YIN RUI, MA JINGYUN, ZHUANG LU, JIA YUANZHEN, WANG MAO, LI LEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING MINING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
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