Installation of a conveyor belt for hard coal shipments with optimized energy consumption in Kalimantan

摘要

In the late 1980s, a new coal deposit was opened up in Eastern Kalimantan, the Indonesian part of the island of Borneo. In the process of opening up the mine, PT Kaltim Prima Coal (KPC), the Indonesian mining company, installed an approximately 13 km long conveying system as the "lifeline" for shipping the processed coal to the loading place at the coast. After the first belt had reached the end of its lifecycle after 10 years of service, ContiTech Transportbandsysteme GmbH was commissioned in 2001 to equip the long-distance conveying system, as shown in Figure 1, with a state-of-the-art belt. The guaranteed energy savings of 5% for the new belt resulted in savings of at least one third of the investment costs when setting off the energy savings against the new belt's expected service life as compared with the original belt.