4Technic and Ecnomic Comparison between the System of Circular Centrifugal Flotation Machine and that of Conventional One10-12
5Application Research on Material Making CWM Jetting Nozzle of Xishan Clean Meagre Coal as an Injetting Coal for Blast Furnace13-15
15Discussion on Technical Renovation of Coarse Coal Slime Treatment System of Taiyuan Coal Preparation Plant34-36
20Operation of ISO 14001 Environment Management System in Coal Preparation Plant of Shenhuo Coal Electricity Co.44-46