Page 366 - Chemical Process Equipment - Selection and Design

11.7. APPLICATIONS AND PERFORMANCE OF EQUIPMENT

C ENTR I FUGAL

OUT
Coticentrat ing
Classifying
u
Thickening

(f) (h)
Figure ll.B-( continued)

11.1:3. Typical Applications of Industrial Filters
Equipment Type' Vacuum Pressure
Filtrate Rate
Material Characteristics kg/(m2)(hr) A B C D E (Torr) (arm9
Flotation concentrates minerals, <0.3 rn 300-1000 x 450-600
Sedimentation concentrates > 0.3 mm 6000-42,000 x 50-150
Crystals and granules 0.05-0.3 mm 600-2000 x 100-300
Beverages, jLiices worthless solids, 150-5000
use filter aids
Pigments smeary, sticky, 120-300 - 500-680
0.06 mm
batch mode
Limestone. oKide mine!rals fine, high density 200-1000
batch mode
Cane sugar mud fibrous, viscous
Mineral oils high viscosity,
1-20% bleaching clays 100-1000
Liquid fuels low viscosity,
bleaching clays 800-2500
Varnishes, lacquers cloudy, viscous,
solid adsorbents 15-18
worthless solids,
Fats, oils, waxes 50-70°C 500-800 - -
Sewage sludge colloidal, slimy 15-150 - 550-600
Pulp and paper fibrous, free filtering 150-500 - 150-500
fine limestone,
Cement shale, clay, etc 300- 1000 - 450-630
'Equipment type: (A) filter press; (511 leaf pressure filters, such as Kelly, Sweetland, etc.; (C) continuous vacuum filter; (19) batch rotary
filter; (E) continuous rotary filter.