The Candle Filter is pressure filter operating on a batch cycle and may be seen in applications that require efficient low moisture cake filtration or high degree of polishing. Candle Filters can also be used for thickening to produce a concentrated slurry by partial removal of the liquid phase as filtrate.
The Candle Filter is the cylindrical shape of the elements that retain the formed cake. This shape, opposed to Plate, Leaf or Filter presses, increases the filtration area as cakes grow thicker and compensate to some extent to the decrease in filtration rates.
Candle Filters are very well suited for handling flammable, toxic and corrosive materials since they are autoclaved and designed for hazardous environments when high pressure and safe operation are required.
They may be readily jacketed for applications whenever hot or cold temperatures are to be preserved.