Burner apparatus for making holes in coal seams

A method and apparatus for making holes in coal seams in a coal mining system in which hot working gas is employed to impinge on the coal under high pressure and speed in order to disintegrate it and particularly for making inclined or horizontal holes which connect vertical drill holes which lead f...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	MUNDING, GERMAN, HOPMANN, HELMUT, TERSCHUEREN, WALTER, SOWA, ARMIN, BECKERYORDERSANDFORTH, CHRISTIAN
Format:	Patent
Sprache:	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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!