Multifunctional coal mine safety detection bar and manufacturing method thereof

The invention relates to a multifunctional coal mine safety detection bar for detecting spontaneous combustion hidden trouble points of coal seams and a manufacturing method thereof. The multifunctional coal mine safety detection bar comprises an outer sleeve, a middle sleeve, an inner sleeve, a min...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LI ZHI, FAN JIUYUAN, WANG YUEHONG, HOU JINXIN, GUAN YAJIE, ZHANG JIULING
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS HAND OR TRAVELLING ARTICLES HUMAN NECESSITIES LADIES' OR LIKE FANS MEASURING MEASURING QUANTITY OF HEAT MEASURING TEMPERATURE MINING PHYSICS SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS TESTING THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR UMBRELLAS WALKING STICKS
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