Reducing dust concn. in mine air - during mechanical coal mining, by emplying hygroscopic pastes on tunnel surfaces

Process for impeding dust formation in coal mines where the extn. of coal is undertaken using curbs and shields to support the surfaces of the tunnels, together with the hygroscopic salt pastes. The exposed roof layers in the tunnels are coated with a layer 1-10mm. thick of a conventional dust-bindi...

Ausführliche Beschreibung

Bibliographische Detailangaben

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