十多年来,我矿的重选尾矿溜槽衬板先后使用过松木、钢板、玻璃、橡胶、混凝土、石灰石、废旧锰钢棒、铸铁和塑料等九种材料。这些材料的共同弱点是寿命短、成本高。1970年在一条27米长的矿浆溜槽上试用了辉绿岩铸石衬板,其耐磨程度为铸铁的7～8倍。1972年在新建昆矿坝的2286米尾矿沼槽上,将其中的2016米铺设铸石衬板,其使用量达143吨。使用条件:溜槽坡度5.2% For more than a decade, our mine tailings chute liner has used nine materials, pine wood, steel, glass, rubber, concrete, limestone, scrap manganese steel bars, cast iron and plastic. The common weakness of these materials is their short life and high cost. In 1970, a gypsum cast stone liner was tested on a 27-meter long slurry chute with a wear resistance of 7 to 8 times that of cast iron. In 1972, Kunming Mines dam 2286 meters tailings marsh on which 2016 meters laying of cast stone lining, the amount of 143 tons. Conditions of use: Chute slope 5.2%