When mining coal, it is common to use wet screening for screening the coal. The screening is usually executed using a screening device such as a banana screen, comprising one or more screen media elements. The screen media element can be made from rubber and/or thermoplastic polyurethane or comprise of a number of stainless steel wedge wires. However, neither of these materials are sufficiently wear resistant in order to withstand the abrasive wear caused by the passing coal.
USPTO Backgrounds
USPTO Backgrounds