In the drying zone, the filter cake continues to be dewatered under the action of vacuum until dry, and then it is transported by belt to the desired place after being scraped off in the discharge zone.Īfter discharging, the ceramic plate finally enters the backwash zone. When the vacuum zone starts working, the ceramic filter plate immersed in the slurry forms a thick layer of granular stack rapidly on the surface of the ceramic plate under the action of vacuum, and the filtrate is filtered through the ceramic plate to the distribution head to reach the vacuum drum. The full-automatic ceramic filter mainly consists of the rotor, distribution head, agitator, scraper, slurry tank, back flushing system, ultrasonic cleaning system, PLC operating system and electric control system.

In the spirit of pioneering, innovation and all-round service, we are dedicated to providing best solutions for filtration and dewatering of domestic and foreign iron concentrates, copper concentrates, zinc concentrates, sulfur concentrates, nickel concentrates, lead concentrates, aluminum concentrates, gold concentrates, vanadium concentrates, non-metallic concentrates, as well as beneficiation of low-grade phosphorite, filtration and dewatering of various tailings, and other technological and environmental problems. All solvent and gas streams can be recovered separately and reused in the process to minimize their consumption.Ceramic Rotary Vacuum Disc Filter, Separate liquids from Solid for Mining Dewatering After automatic cake discharge, the filter cloth is washed the clean filter cloth then re-enters the feeding / filtration zone thereby continuing the process. The Filter has a uniquely designed discharge system, which provides for atmospheric discharge from pressure filtration. Finally, the cake is dried by blowing hot or ambient-temperature gas through the cake. Multiple washing steps as well as solvent exchanges, steaming and extraction can also be accomplished. Positive displacement washing or counter-current washing follows filtration.

The technology is based upon a slowly rotating drum, less than 2 rpm, with individual cells containing the filter media and isolated process zones.įiltration is driven by pump pressure of up to 7 barg with a temperature range of 200° Celsius. The BHS Rotary Pressure Filter is a continuously operating filter for pressure filtration, cake washing and drying of high solids slurries with full containment and automatic cake discharge.

Rotary vacuum filter working principle