Blasting apparatus for the blasting of a rock drill bit

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

Patent

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Details

F42D 3/04 (2006.01) B24C 3/04 (2006.01) B24C 9/00 (2006.01)

Patent

CA 2467950

The present invention relates to a blasting apparatus (10) for blasting rock drill bits comprising a blast nozzle (20) for conducting a pressurized blast medium towards a rock drill bit, said nozzle having a direction (L), a fixture (17,21) for the location and rotation of the rock drill bit and a first chamber (14), which surrounds blast nozzle (20) and at least a part of the fixture (21), as well as means (15,23,25) for the forwarding of blast medium. A second chamber (26) is mounted in the first chamber (14). The second chamber (26) is arranged to, at least partially enclose, the fixture (17,21). The second chamber (26) is movable in said direction (L). The second chamber (26) has an opening (31) located between the fixture (17,21) and the blast nozzle (20).

La présente invention concerne un dispositif de décapage (10) de taillants de fleuret, comprenant une buse de soufflage (20) pour projeter un décapant vers le taillant de fleuret, ladite buse ayant une direction (L) et comportant une pièce fixe (17,21) pour le positionnement et la rotation du taillant de fleuret, ainsi qu'une première chambre (14) qui entoure la buse de soufflage (20) et au moins une partie de la pièce fixe (21), de même qu'un dispositif (15,23,25) pour l'acheminement du décapant. Une seconde chambre (26) est montée dans la première chambre (14) et est disposée de façon à cloisonner au moins partiellement la pièce fixe (17,21). La seconde chambre (26) peut être déplacée dans ladite direction (L). Elle comporte une ouverture (31) située entre la pièce fixe (17,21) et la buse de soufflage (20).

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