CPC Subgroup
B01D 33/60 for washing
Full Title
Filters with filtering elements which move during the filtering operation (filters comprising loose filtering material moving or fluidised during filtration B01D24/28 - B01D24/36; centrifuges B04B) > Handling the filter cake in the filter for purposes other than for regenerating (B01D33/76 takes precedence) > for washing