ABSTRACT
In the German underground coal mining industry, mainly large-scale belt conveyor systems are used for the transport of the extracted coal to the winding shaft. Stoppage of only one conveyor belt of this system as a rule means loss of output for the repair period. The efforts for repairing the defect have to be added to this. For this reason sufficient measures for a regular operation must be guaranteed. This requires suitable components for monitoring and adjusting the position of the belt as well as methods of identification of belt damages. For this purpose EMSYS Elektromechanische Systeme GmbH, Marl, has developed products such as an off-track control (Gnauert 1999/2) and an electromechanical training idler (Gnauert 1999/1). Presently these units are being tested in operation.
This paper deals with the design and the functioning of the above mentioned products. By employing the off-track control and the training idlers, an independently operating system for the correction of belts running off-track is presented. Furthermore, a method for the identification of longitudinal belt slits when using the off-track control is presented. Finally the results of the tests will be discussed.
