Scrapers win stockyard ascendancy?
In controlling the flow of materials such as coal, ore, limestone or clinker into stockpiles, the mechanical stacking function is comparatively straightforward.
Reclaiming it, on the other hand, is considerably more complex as there is often a requirement to blend or homogenise the commodity at the same time. Stockyard machines are usually located in a bottle-neck situation at the crucial interface between incoming and outgoing commodity flows and have to be extremely reliable as replacement machines or alternative routes are not available in most instances. A mechanical failure can cause the shut-down, for example, of a complete power station or cement plant.