Selection and application of roller press for raw meal preparation at Alpena (cement plant)

摘要: The author reviews the twin roller press systems installed at Lafarge's cement plant in Alpena, MI. two systems, with their associated ball mills, are together rated for 640 st/hr of raw meal. include integral flash drying and flexibility operation various production rates. discusses five alternative options that were studied reasons selection system. A risk analysis key mechanical components, including roll hard-facing gear reducers, main bearings, is presented, along actions taken minimizing these risks. Preliminary operating results system shown. >