Patent ID: 7798247
Filing Date: 2010-09-21
Classification: E21C

Abstract:
1. A rock drilling rig, comprising: a movable carrier provided with at least one drilling boom at the outer end of which is a rock drilling unit comprising at least a feed beam and a rock drilling machine, a control cabin, a dust collection system containing at least a suction device, filters and a first suction channel, the dust collection system being arranged to suck dust through a first suction channel from a drill hole drilled with the rock drilling machine, at least one second suction channel connected to the dust collection system, wherein the suction device of the dust collection system is configured to produce a suction effect through the second suction channel at least to one predetermined second location other than the drill hole, and the rock drilling rig comprises at least one control unit enabling the suction effect produced at the second location to be controlled, and the dust collection system is connected to the control cabin through the second suction channel, and wherein, the lower part of the control cabin is provided with at least one exhaust air nozzle to which the second suction channel is connected, and the exhaust air flow taking place through the exhaust air nozzle is arranged such that the direction of the air current inside the control cabin is substantially always from top to bottom.