Centrifuge for separating fine particles has lower end of centrifuge drum supporting pump body with inner and outer pump walls producing two fluid streams to keep particles away from float

摘要

The centrifuge has a housing (16) with centrifuge drum (62) and outlet opening (72) in the base. A pump body (80) hangs down and has an inner continuous pump wall (82) and an outer pump wall (84) which ends underneath the drum. The inner pump wall is cropped so that a lower wall section has a smaller diameter than the upper wall section. A toroidal shaped float (46) has an inner face running parallel to the outer face of the pump body. The outer pump wall is stuck or welded to the inner pump wall.