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    Ball mill power calculation (for 2 chambers)
    Calculator valid for cement, raw meal or other materials
             
    Date      
    Cement plant
    Mill number    
    Diameter m    
    Speed of rotation rpm     -----> % of critical speed
             
    Chamber 1        
    Usefull length m    
    Filling degree %    or tons of balls
    Biggest ball diameter mm    
    Power of chamber 1 kW    
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    Chamber 2        
    Usefull length m    
    Filling degree %    or tons of balls
    Biggest ball diameter mm    
    Power of chamber 2 kW    
             
    Power coefficients        
    Annular (Ring) motor
          
    Slag in the fresh feed 
        No
    Fresh feed is iron ore
        Less than 50%
    Fresh feed is alumina clinker
    (ciment fondu) More than 50%
    Danula rings in chamber 2
         
    Thin lining in chamber 2
    (< 60 mm)    
    Cylpebs in chamber 2
         
             
    Absorbed power of the mill kW
             
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    All rights reserved © 2012-2015 The Cement Grinding Office