That happens in the rush hour in a big cafeteria. 328 KB 135 KB 604 KB Cast iron cleaning is a heavy work. A copper refinery has a complicated transporting system. Transporting processes in a planned large platinum underground mine have to be modelled. Favourable sizes and capacities of stores and conveying systems have to be found by model experiments.
Trucks transport the ore to an harbor.
Model experiments with different harbor capacities support the planning decisions. J. Sturgul, Th. The model presents a typical open pit coal mine. The coal has to be produced, transported, crushed, broken and stored. Finally it has to be loaded on a train.