Outotec Adds Two Models to PF Filter Line
Outotec Larox PF filters are recessed plate membrane filters in which the chambers lie horizontally. The filter plates are stacked vertically to give a total filtration area between 1.6 and 252 m2 (2–300 yd 2), depending on the model size. Filter capacity can be expanded by adding plates. The PF 12 and 15 series offer filtration areas ranging from 9.45 to 31.5 m 2 (11– 37 yd2), and 15 to 50 m 2(18–60 yd 2 ), respectively.
Outotec said the PF line employs a sin-gle filter cloth that serpentines between the filter plates and reliably transports the cakes out of the chamber in every cycle; this eliminates any requirement for manu-al assistance. The PF filters operate auto-matically, configured either with a stand-alone panel and integrated PLC or through a distributed control system. The units’ automation capability extends beyond simple filter sequencing to process control to achieve consistent results under varying process conditions.
A wide variety of Outotec filter cloth types are available for different applica-tions. During each cycle, the filter cloth passes through high-pressure water sprays designed to wash surface or embedded solids off the cloth, maintain-ing cloth permeability, ensuring consis-tent filter performance with every cham-ber having equal cloth resistance, and extending cloth life. The single cloth sys-tem, said Outotec, simplifies logistics, maintenance and allows complete cloth inspection without a shutdown.