Episode 43: DESIGN of Rotary Vacuum Drum Filter Theory of Separation Rotary vacuum drum filter (RVDF) is one of the oldest filters used in the industrial liquid-solids separation.A rotary vacuum filter consists of a large rotating drum covered by a cloth. The drum is partially immersed in liquid/solids slurry with approximately up to (25-75)% of the screen area.

As the drum rotates into and out of the trough, the slurry is sucked on the surface of the cloth and rotated out of the liquid/solids suspension as a cake. When the cake is rotating out, it is dewatered in the drying zone. The cake is dry because the vacuum drum is continuously sucking the cake and taking the water out of it. At the final step of the separation, the cake is discharged as solids products and the drum rotates continuously to another separation cycle. SAJJAD KHUDHUR ABBAS Ceo, Founder & Head of SHacademy Chemical Engineering, Al-Muthanna University, Iraq Oil & Gas Safety and Health Professional – OSHACADEMY Trainer of Trainers (TOT) - Canadian Center of Human Development. Episode 43: DESIGN of Rotary Vacuum Drum Filter • 1.

Rotary Drum Filters One of the oldest filters used in industrial applications, a rotary drum filter resembles a drum laying on its side. One third to one half of it is submerged in the slurry. Elliot Quinn Contract Law 8th Edition. The basic steps in the filtration process are: • Cake Formation - An internal valve opens.

Rotary vacuum filter drum consists of a drum rotating in a tub of liquid to be filtered. The technique is well suited to slurries, and liquids with a high solid. Page 1 Article reprinted from Fluid/Particle Separation Journal, Vol. 1, April 2000 Aspects of Rotary Vacuum Filter Design & Performance. Rotary Drum Filter -1- Rotary Drum Filter. The particles are then vacuumed off the media by Vacuum Nozzles installed in the drum chamber.

This allows vacuum to be applied to the underside of the filter screen. The cake starts to form on the part of the drum that is submerged.