Rotary Drum Vacuum Filter - RDVF
(Or Best Offer)
Alfa Laval Rotary Drum Vacuum Filter - RDVF (Lundin Filter), 8m2 surface area, ex winery.
Complete with spray bars, control panel, knife discharge, SH60 mono pump, SIHI vacuum Pump, discharge conveyor and pipe work.
Rotary vacuum filter drum consists of a drum rotating in a tub of liquid to be filtered.
Model - TF8m2
Stock Code - 20639
The technique is well suited to slurries, and liquids with a high solid content, which could clog other forms of filter. The drum is pre-coated with a filter aid, typically of diatomaceous earth (DE) or Perlite.
After pre-coat has been applied, the liquid to be filtered is sent to the tub below the drum. The drum rotates through the liquid and the vacuum sucks liquid and solids onto the drum pre-coat surface, the liquid portion is "sucked" by the vacuum through the filter media to the internal portion of the drum, and the filtrate pumped away.
The solids adhere to the outside of the drum, which then passes a knife, cutting off the solids and a small portion of the filter media to reveal a fresh media surface that will enter the liquid as the drum rotates.
The knife advances automatically as the surface is removed.
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