Method for rapidly upgrading and transforming counter-rotating fans in main ventilation system of coal mine

The invention discloses a method for rapidly upgrading and transforming counter-rotating fans in a main ventilation system of a coal mine. The method comprises the following steps: detaching a first air duct section of an original standby fan and reserving a first power section; carrying out pouring...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YU HAIYANG, YAN ZHENGUO, FAN JINGDAO, LI HONGYE, LI XUEFENG, ZHONG LINGBIN, SU MOMING, LI BIN, WANG GONG, XUAN HONGBIN, LI LEIJUN, CAO HUIQIANG, WANG XING, GUO XIAOSHUI, WANG JING, ZHANG JUNJUN, LI YANFENG, XU ZHIBING, ZHANG XUEFENG, ZHANG DONGFANG, BI SHUAI, LI JIARUI, WANG DONGBO, GUO JUNLONG, QIN YUBING, WANG HAO, GUO ZHENXING, SONG YINLIN, JIA XIAOLEI, LI CHUAN, LIU JIANBIN, QU XIAOBIN, CHANG XINTAN, FENG SHENGCHENG, LI QIANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING EARTH DRILLING FIXED CONSTRUCTIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS WEAPONS
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