Cylindrical variable-chamber filters

Cylindrical Variable-Chamber Filters. Cylindrical filtering sur ces are inhorent in the tube press. Figure 11.42, and the VC fibo . Figure 11.43. hr the latter, the filter is mounted on a... 

Cylindrica.1 Presses. Another group of filters that utili2e the variable chamber principle are those with a cylindrical filter surface. There are two designs in this category, both of which originate from the United Kingdom. 

The basic principle on an RVF is a hollow rotating cylindrical drum driven by a variable speed drive at 0.1-10 revolutions per minute. One-third of the drum is submerged in a slurry trough. As it rotates, the mycelia suspension is drawn to the surface of the drum by an internal vacuum. The surface is the filter medium mounted on top of a grid support structure. Mother liquor and wash are pulled through the vacuum line to a large chamber and evacuated by a pump. 

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