Method of stabilising a blasthole

F - Mech Eng,Light,Heat,Weapons – 42 – D

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F42D 1/08 (2006.01)

Patent

CA 2738331

A method of stabilising a blasthole prior to detonation which comprises the step of coating the inner wall of the blasthole with a stabilising composition. In one embodiment, the invention comprises coating the blast hole by means of a movable spraying application. The invention further relates to the use of a silicate- containing resin but is also suitable for use with a thermoset resin system. The method can be used to apply the stabilising composition to both dry and wet blastholes.

Linvention concerne un procédé de stabilisation de trou de mine avant une explosion, qui consiste à revêtir la paroi intérieure dun trou de mine avec une composition de stabilisation. Dans un mode de réalisation, linvention consiste à revêtir le trou de mine au moyen dun dispositif de pulvérisation mobile. Linvention concerne également lutilisation dune résine contenant du silicate mais est également appropriée pour être utilisée avec un système de résine thermodurcie. Le procédé peut être utilisé pour appliquer la composition de stabilisation à la fois sur des trous de mine secs et humides.

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