Alarm relay unit for coal mine deep well gas superscale

The utility model discloses an alarm relay unit for coal mine deep well methane superscale, which mainly comprises a gas alarm, a safety helmet and an alarm information wireless emitter, wherein the gas alarm and the alarm information wireless emitter are installed on the safety helmet; alarm relay...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	HAI PENGFEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS MINING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
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