APPARATUS AND METHOD FOR GRINDING CARBONACEOUS MATERIALS

摘要

Apparatus (1) for grinding material such as present in a blast furnace (3) hearth bottom (2), which apparatus comprises a grinder (4) for carbonaceous materials such as carbon blocks and/or bricks, which apparatus further comprises a robot (5) comprising a robot pedestal (6) on which a movable robot arm (7) is mounted, wherein the grinder (4) is mounted on an extremity of said movable robot arm (7) distant from the robot pedestal (6), and wherein the robot arm (7) and the grinder (4) mounted thereon are connected to a controller (8) for controlling the movement of the robot arm (7) and the operation of the grinder (4). The apparatus (1) is used by providing the displaceable robot (5) on the blast furnace hearth bottom (2); measuring the actual blast furnace hearth bottom surface level; measuring the position and altitude of the displaceable robot (5); calculating from a desired hearth bottom surface level and the measured actual hearth bottom surface level, the level of the hearth bottom surface that has to be removed by grinding; and controlling the operation of the displaceable robot (5) and the grinder (4) mounted thereon to remove said calculated level of the hearth bottom surface.