Method and device for introduction of explosives into drill hole

Details Method and device for introduction of explosives into drill hole Method and device for introduction of explosives into drill hole

1989-03-15

1992-04-21

Hunt, Brooks H.

Ammunition and explosives

Blasting

Borehole loading

86 2015, 299 13, F42B 300, F42D 300

Patent

active

051057433

ABSTRACT:
In a method and a device for introducing granular or pulverulent explosive into drill holes the introduction is suitably carried out by means of a hose like or tube like conduit (2) introducable into the drill hole, the explosive being transported through the conduit, e.g. with pressurized air. To obtain an explosive power reduced in relation to that obtained by complete filling of the drill holes with the explosive, only partial filling of the drill holes is carried out by either

REFERENCES:
patent: 4036099 (1977-06-01), French
patent: 4090447 (1978-05-01), Johnsen
patent: 4699060 (1987-10-01), Vuillaume et al.

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