A spiral classifier is to satisfy the following requirements: Solids feed rate: 25 tons/hour Overflow solids capacity: 18 tons/hour Overflow pulp density: 25%w/w solids Solids specific gravity: 3.0 Separation size: 100m(95% passing size ) Areal efficiency: 55% Calculate overflow and sand compression minimum pool areas, and also the sand raking volume (Use Equation 5.30 in your lecture notes to determine the hindered settling rate of the solids in the classifier pool. Use 40% by volume solids concentration in the compression zone to have a stable classification). A spiral classifier is to satisfy the following requirements: Solids feed rate: 25 tons/hour Overflow solids capacity: 18 tons/hour Overflow pulp density: 25%w/w solids Solids specific gravity: 3.0 Separation size: 100m(95% passing size ) Areal efficiency: 55% Calculate overflow and sand compression minimum pool areas, and also the sand raking volume (Use Equation 5.30 in your lecture notes to determine the hindered settling rate of the solids in the classifier pool. Use 40% by volume solids concentration in the compression zone to have a stable classification)