Extraction device for the degradation of fl ockly or massively deposited mineral materials and extraction machine therefor

摘要

The invention relates to a mining machine and an extraction device for the degradation of flocculant or solid deposited mineral materials with a conveyor for the removal of inworn material and with a along the conveyor (5) movable extraction machine (10) equipped with at least one with removal tools (17) to its roll axis (W) rotatable and via a pivot arm (21) relative to a machine frame (11) height-adjustable roller (19). In order to provide an extraction device and also a mining machine, with which high degradation rates can be achieved with reduced tool wear, the invention proposes that the roll axis (W) of the roll (19) is substantially parallel to the direction of travel of the mining machine (10) the removal tools (17) are mounted in groups on tool carriers (18) which are arranged rotatably about axes of rotation (R) perpendicular to the roll axis (W) on the circumference of the roll (19).