Mining methods and apparatus

E - Fixed Constructions – 21 – C

Patent

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E21C 35/08 (2006.01)

Patent

CA 2602838

A method and apparatus for horizon control in a mining operation is provided. Fresh product (3) is cut from a seam (1). The cutting exposes a fresh cut product face (25). The fresh cut product face (25) is observed at a position immediately adjacent a cutter (11). Any temperature contrast regions from an IR observation between an upper limit of observation and a lower limit of observation are noted. At least one height co-ordinate position of a temperature contrast region (33) is determined and an output signal provided of the determined height co-ordinate position so that the output signal can be used as a horizon datum for horizontal control.

L'invention concerne un procédé et un dispositif de contrôle d'horizontalité dans une exploitation minière. Un matériau frais (3) est taillé dans une veine (1). La taille expose une face de matériau frais (25). On analyse ladite face (25) à une position immédiatement adjacente à une haveuse (11). Toute zone de contraste de température détectée par une analyse IR entre une limite d'observation supérieure et une limite inférieure est notée. Au moins une position de coordonnées de hauteur d'une zone de contraste de température (33) est déterminée et un signal de sortie généré pour la position déterminée, ce signal servant de référence au contrôle d'horizontalité.

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