The BoVac Drum filter is operated for filtration, washing and dewatering of a textile dye product. The filter is equipped with a wash hood and adjustable wash bars with spray nozzles and with a CIP system for clean & safe operation.

The BoVac Drum filter has a filter area of 6 m² and replaces several filter presses of 40 m² filter area each. Main target is to remove Sodium Thiosulphate by cake washing. The filter enables the client to change from batch type filtration process to continuous process.

The targeted cake quality is attained with less wash water. Compared to the filter presses, the BoVac Drum filter requires 1.7 m³ per t of solids less wash water while solids throughput increased from 0.7 to 1.0 t/h.

Due to 24 exchangeable filter cells the change of filter cloth is unparalleld simple and quick. With a second set of filter cells already equipped with filter bags the time for re-clothing is only approx. 1–2 hours, including shutdown, cleaning and restart of the filter.