Cement Milling Part II Ball Mill

 

Contents

Cement milling circuits
Particle size distributions
Separators types
Separator performance
Mill circuit modelling

Cement Milling Circuits



?Why Close Circuit

Fine grinding is not energy efficient

media coating

cushioning effect from fines

less flaws in smaller particles

Close circuiting allows coarser grinding but need separator to separate out coarse particles and return to mill.

A narrower particle size distribution may be desirable in certain cases

Disadvantage is that power consumed by extra ancillaries (elevator, separator etc.) may offset power saving in mill


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تعليقات

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