Coal mine underground drilling track measuring device and system

The invention discloses a coal mine underground drilling track measuring device and system, and belongs to the field of drilling track measuring. A coal mine underground drilling track measuring device comprises a main shaft. A liquid injection assembly; an air exhaust mechanism; and a sampling mech...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHAN BENYONG, LI KEXIANG, LI WUBANG, LIU ZIBING, LI XIAOMING, ZHAO QINGWEI, TAN JIAGUI, GUO JIANZHONG
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
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