Method for charging drill holes with explosive
AssigneeNitro Nobel AB
InventorPer-Anders Persson
Life of this patent
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Abstract
This invention relates to a method of charging drill holes for blasting, according to which method solid and liquid components of an explosive substantially each of them separately but simultaneously are blown or pumped, respectively, through its individual hose channel into the drill hole within which the components are intermixed as a result of the simultaneous pumping and blowing operations. The invention relates also to various recipes for preparation of explosives possessing properties especially fitted for the method in consideration. The invention also comprises an apparatus suited for carrying out the method.
Claims17
A method of charging a drill hole with an explosive mixture having a solid component and a liquid component, comprising
- using a stream of compressed air to conduct the solid component into the drill hole and simultaneously delivering the liquid component into the drill hole at the same point as the solid component while maintaining the two components entirely separated from one another until they are delivered into the interior of the drill hole so that they are mixed with one another only when both are in the drill hole.
Dependencies are inferred from the claim text.