Wirtgen Surface Mining Maximizing Coal Recovery By
Aug 23, looking at the material 1 mm, the plant even has to process 33% less fine material when working with surface miner coal. the surface miner delivers more than 70% target size coal (2 –.Belt conveyor capacity table 1. determine the surcharge angle of the material. the surcharge angle, on the average, will be 5 degrees to 15 degrees less than the angle of repose. (ex. 27 - 12 = 15 ) 2. determine the density of the material in pounds per cubic foot (lb/ft3). 3. choose the idler shape. 4. select a suitable conveyor belt speed..