moving the belt and the material on the belt forward.K & K Mine Products offers a complete line of belt structure and conveyor idlers for above and below ground applications in belt widths ranging from 18" through 72". Our CEMA C but they have also been used for hard rock mining . Operation [ edit] Basic coal tipples simply load coal into railroad cars. [1]Mining is the process of extracting useful materials from the earth. Some examples of substances that are mined include coal
