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        Screw conveyor design elements                
                           
        Warning: This calculator gives a rough and initial idea for the design of a screw conveyor.        
        Only horizontal conveyors up to 200 m3/h of capacity are taken into consideration.          
        This calculator must be used only for cement and fly ash.              
        Two methods are used in this calculator, please see the explanation:      
        http://www.thecementgrindingoffice.com/screw.html        
        To go ahead, a more detailed study is needed with the installation supplier.      
                     
        Date       
        Company/Plant    
        Project N°      
                  84  
        First method         86  
      88
        Material
        Cement 90  
        Capacity required t/h Fly ash 92      
        Bulk density of dust kg/m3   94    
        Capacity in volume m3/h   95      
        Screw length m     96      
    97
        Screw diameter mm     98        
        Screw pitch mm            
        Rotation speed rpm            
        Progression speed m/sec              
     
        Power calculation     0,15            
        Absorbed power when unloaded kW 0,2            
        Absorbed power for material kW 0,25            
        Motor + Transmission efficiency
    % 0,3            
        Total absorbed power kW 0,35            
              0,4            
        Second method     0,45            
    0,5
        Material                
        Capacity required t/h              
        Bulk density of dust kg/m3              
        Capacity in volume m3/h              
        Screw length m              
        Filling degree
                   
        Speed of rotation rpm              
        Screw diameter mm              
        Screw pitch mm              
        Progression speed m/sec              
        Power calculation                  
        Absorbed power when unloaded kW              
        Absorbed power for material kW              
        Motor + Transmission efficiency
    %              
        Total absorbed power kW              
                           
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    All rights reserved © 2012-2015 The Cement Grinding Office