Rotary Pressure Filter RPF	Exact separation of suspensions

	Brochure   -   Rotary Pressure Filter	The BHS Rotary Pressure Filter is a continuously operating unit for pressure filtration, washing and drying of the cake formed. It is ideally suited for processing volatile or hazardous products or for sterile processes. The filter works at a pressure of up to 7 bar (g). In all process steps, pressure is generated by feeding of the suspension and/or the washing and extraction agents and not by layers of gases. Depending on the design, numerous further process steps can be accomplished after the main solid-liquid separation such as: cake washing in one or multiple stages, displacement washing, counter-current washing, closed cycle washing, reslurrying, solvent exchanges, steaming, extraction etc. Subsequently, the filter cake can be dewatered mechanically, or - as an option - dried thermally. All process steps are performed in separate cells of the rotating drum. Thus, the filtrates can be drained off separately. A simple integrated discharge system allows the filter cake to be discharged at atmospheric pressure directly to the downstream equipment. After automatic cake discharge, the filter cloth is cleaned and ready for a new filtration cycle.
	The BHS Rotary Pressure Filter works on the principle of cake building filtration.

Process criteria Operation continuous Operating pressure up to 7 bar (g) Operating temperature up to 160 deg. C Solids content (supension) up to 60% (wt.) Cake thickness up to 185 mm Particle size 10-500 microns Filtration capacity - suspension 0,1-15,0 m³/m²h Filtration capacity - dry solids 50-15.000 kg/m²h Filter area 0,1-9,0 m²

Benefits continuous, fully automatic operation   contained and gas-tight production   several successive process steps   multiple filtrate separation   high process versatility   excellent workplace hygiene and safety