Face conveyor for extraction plants and trough element for said face conveyor

摘要

The invention relates to a face conveyor for the extraction of minerals by means of extracting machines, said conveyor having a conveyor chain (70) which, when conveying, circulates in two an outward run and a return run that travel in opposite directions. Each of the runs is guided in trough portions (1, 2) by trough elements (10), having guide means (60) on each trough element (10) for the extracting machine, said guide means comprising at least one first guide means on the working face side and one second guide means (60) at a spacing from the goaf side. The invention also relates to the trough element. In order to create a face conveyor which is suitable, in particular, for the extracting of hard materials such as ores or dead rock, the guide means on the working face side is secured on the trough element (10) between the outward run (71) and the return run (72), wherein the outward run (71) and the return run (72) extend in a laterally offset manner with respect to each other and the trough portion (1) guiding the entrainment means in the outward run (71) is open on the working face side.