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1. AU2002210612 - Rock drilling apparatus and mechanical conveyor for drill cuttings

Office Australia
Application Number 2002210612
Application Date 23.10.2001
Publication Number 2002210612
Publication Date 07.02.2002
Publication Kind A
IPC
E21B 21/01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
21Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
01Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
E21B 21/015
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
21Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
01Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
015Means engaging the bore entrance, e.g. hoods for collecting dust
Applicants Sandvik Tamrock Oy
Agents Griffith Hack
Priority Data 20002335 24.10.2000 FI
Title
(EN) Rock drilling apparatus and mechanical conveyor for drill cuttings
Abstract
(EN)
The invention relates to a rock drilling apparatus and a mechanical conveyor for drill cuttings. The conveyor is provided with a sensor (68, 72, 76) for detecting when the conveyor has possibly jammed. The detection data of the sensor is supplied to a control unit (70) of the conveyor, which commands an actuator (31) driving the conveyor to drive the conveyor in a direction that is opposite to the normal direction of conveyance for a predetermined period of time.

Also published as
NO20031809
SE03011731
ZA200303040