Push-pull type wellhead sealing platform device

The invention provides a push-pull type wellhead sealing platform device. The push-pull type wellhead sealing platform device comprises a plurality of sets of moving devices installed on a wellhead platform. Each set of moving device comprises a supporting base, a guide rail, a channel steel sliding...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	FANG TONGGUI, BAO MIN, ZHANG RENZHONG, JIANG WEIHAI, ZOU XIAOYU, TONG AIWU, HU ZHENGXIN, GAO MINGZHAO, LI XUDONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS SHAFTS TUNNELS
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