Face equipment comprising hose levels placed between the face conveyor and the shield support frames

摘要

A face equipment for mechanical extraction in longwall mining, in particular in the underground hard coal mining industry, includes a face conveyor (17) arranged along the mining wall, an extraction device (18) that can be moved along the face conveyor (17), and shield support frames (10) supported on the face conveyor (17) at an angle thereto. In order to determine the height of the face opening, a flexible hose level (21) with a liquid-filled hose (22) placed between the face conveyor (17) and at least one main component of the shield support frame (10) is installed in the area of the face conveyor (17). A pressure sensor (23, 24, 28) is arranged on at least one end of the hose (22). An inclination measuring device (25, 26) is arranged on the face conveyor (17) and on the main component of the shield support frame (10).

主权项

1. A face equipment for mechanical extraction in longwall mining, in particular in the underground hard coal mining industry, comprising:
a face conveyor (17) arranged along the mining wall; an extraction means (18) that can be moved along the face conveyor (17); shield support frames (10) supported on the face conveyor (17) at an angle thereto; a flexible hose level (21) with a liquid-filled hose (22) placed between the face conveyor (17) and at least one main component of the shield support frame (10) installed in the area of the face conveyor (17) on individual shield support frames (10) to determine a height of the face opening; a pressure sensor (23, 24, 28) arranged on at least one end of the hose (22); an inclination measuring device (25, 26), wherein, in addition to considering a longitudinal and/or transverse inclination of the face conveyor (17) and the at least one main component of the shield support frame (10) during face height determination, the inclination measuring device (25, 26) permits measurement of at least two tilting axes against the horizontal, wherein said inclination measuring device (25, 26) is arranged on the face conveyor (17) and on the at least one main component of the shield support frame (10) exhibiting the end of the flexible hose level; and an analyzing and control unit, wherein the pressure sensor (23, 24, 28) and inclination measuring devices (25, 26) are connected to the analyzing and control unit.