Longwall equipment with a hydrostatic tube balance thereon for determining the height position of individual elements of the longwall equipment

摘要

A Longwall equipment for mechanical extraction in longwall mining, in particular in underground coal mining, having a face conveyor arranged along the coal face, having an extraction machine which can be displaced along the face conveyor and having shield support units attached to the face conveyor at an angle thereto, is characterized in that, in order to determine the absolute height position of determined elements of the longwall equipment, a liquid-filled hydrostatic tube balance (17) is installed along the coalface (10) on the selected elements (12, 15, 31) of the longwall equipment and is connected to a base station (19) arranged in one of the gate roads (13, 14) and determined precisely in its height as a reference point, wherein pressure sensors (22) are incorporated into the tube conduit (18, 23, 24) of the hydrostatic tube balance (17), distributed over the course of the longwall equipment on individual elements (12, 15, 31) of the longwall equipment, and are connected to a central evaluation and control unit.

主权项

1. A longwall equipment for mechanical extraction in longwall mining, comprising:
a face conveyor arranged along a coal face; an extraction machine displaceable along the face conveyor and having shield support units attached to the face conveyor at an angle thereto; a liquid-filled hydrostatic tube balance with a tube conduit, said liquid-filled hydrostatic tube balance positioned along the coal face on selected elements of the longwall equipment for determining an absolute height position of the selected elements of the longwall equipment, wherein said hydrostatic tube balance is connected to a base station arranged in a gate road and determined precisely in its height as a reference point; pressure sensors incorporated into the tube conduit and distributed over a course of the longwall equipment on the selected elements of the longwall equipment; and a central evaluation and control unit, wherein said pressure sensors are connected to the central evaluation and control unit.