The conventional continuous extractor uses an extraction
system of vertical batch-operated percolator columns. The extraction
system features a layout with circular columns, which provides a more compact
design.
The most up-to-date processing recognises the importance of:
- Optimum raw material handling and preparation, including pre/moisturing -
right up to the filling of the columns
- Selective introduction of extraction medium at two different stages
- Separation of extracted solids in two extracts (split or double)
- Minimum residence time of extracted solids by maintaining high extract flow
times