Hole sealing device and kit for downlink pressure measuring drill hole and using method of hole sealing device

The invention relates to a hole sealing device and kit for a downlink pressure measuring drill hole and a using method of the hole sealing device, and belongs to the technical field of coal mine safety. The hole sealing device comprises a pressure measuring pipe, a pressing disc and a chuck, wherein...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHANG XIANSHANG, ZHANG RUI, LI JIANGONG, WEI LE, GUO JINGYUAN, LIU ZHIWEI, HU JIE, HAN ENGUANG, LYU GUICHUN, RAN YONGJIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
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