Coal-fired power plant - The Wire - OPPD The WireAug 10, 2015 . The Role Of Coal; After being unloaded, the coal is moved up a conveyor belt, as needed, to the crusher house, where it is reduced to marble-size pieces. coal-fired power plant The conveyor belt at Nebraska City Station. The crushed coal then continues up the conveyor into the plant and stored in a.coal size after crush in power plant,Coal Processing | Coal Preparation | Coal Handling | RPM SolutionsCoal processing is where raw coal from the mine is cleared using different physical processes, with or without any chemical reagents, to get a product which can be sold in the market or can be used for different purposes such as power generation. Once the coal has been mined it needs to be processed. First, the coal goes.