The present invention provides a self-cleaning
drying centrifuge for removing fluid from a concentrated particulate-filled fluid and peeling mostly dried particulate (
solid) material from the
centrifuge. In some embodiments, a high-efficiency
centrifuge performs an initial separation and concentration of
small particles from a contaminated fluid, and outputs a clarified fluid for reuse, and periodically purges concentrated
particulates with high fluid content. The purged concentrate is then fed into the present invention's
drying centrifuge, which substantially reduces the remaining fluid content. In some embodiments, the
drying centrifuge is periodically stopped and one or more internal blades (peelers) are rotated around the inner wall of the drying centrifuge bowl to peel the accumulated solids, which drop into a collection container. In some embodiments, partial peelers are arranged in a balanced configuration, but each peel portions of the bowl not peeled by others, to reduce the
brake size needed to hold the bowl.