What is the principle of operation of the continuous – indexing vacuum belt filter?
In the BHS vacuum belt filter, the slurry feed is continuous while the filter cloth is moved intermittently and the trays fixed in place. For cloth movement, the vacuum is broken by butterfly valves and the cloth moves (indexes), by pneumatic cylinders, in the space above the vacuum trays. The belt moves along and relaxes but never touches the trays, which allows for long filter cloth life.
