Complete renovation of the energy supply system
As a complete overhaul of the stockpiling unit was being undertaken, those responsible decided not only to modernize the unit itself, but also to renew the rail track and the energy supply of the conveyor system. Originally, the conveyor was supplied with energy and signals over its at least 366 long track via a motor cable drum. Now a
modern energy chain system from igus® undertakes this task (Figure 2). Since the push/pull forces that occur across the length of the travel shouldn't be underestimated, the project engineers recommended the use of a
roller e-chain® that doesn't glide in the guide trough, but rolls via highly stable rollers with stainless steel ball bearings. Since the environmental conditions are unfavorable (outdoor use, temperature changes, humidity, dust), there is a "heavy duty" roller chain of type 5050RHD for this application. Outer radius stops prevent the conveyed material from sticking (Figure 3). In addition, the guide trough is equipped with an enclosure as a protection against ascent and weather.