The performance of a scaled down industrial disc stack centrifuge with a reduced feed material requirement
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A method is described for the scale-down of a disc stack centrifuge which reduces the number of separating discs and also the liquid and solid hold-up of the centrifuge bowl. This is to enable a reduced volume of process material to be used for study of clarification. Scale-down is achieved in stages using a series of interlocking inserts to suit particular applications. Maximum scale-down gives a 76% reduction in the separation area and a bowl volume reduction of 70%. Separation performance of the full stack machine and scale-down variants is compared using the grade efficiency concept. Polyvinyl acetate and bakers' yeast homogenate particle suspensions are used for the comparison. The grade efficiency curves produced by the scale-down variants closely follow the curves for the full stack machine. This resulted in supernatants of the same volume size distribution and concentration when using scale-down methodology to mimic the full scale operation.
- The performance of a scaled down industrial disc stack centrifuge with a reduced feed material requirement
Volume 18, Issue 3 , pp 191-199
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