In this paper, the classification performance of the choking-free cyclone for waste mud have been investigated.
The main results obtained are summarized as follows.
1) The equation (1), which showes the size of separation for the solid particles suspended in paper slurry with the flow behaviour of Bingham plastic, can be applied to the solid particles suspended in waste mud slurry in the same manner. Therefore, it is suggested experimentally that the equation(1) can be applied to the prevailing Bingham plastic fluid.
2) As a result of comparing the classification performance of the choking-free cyclone with that of other cyclones, it is expected that the size of separation obtained by the cyclone is smaller than those by the others and the solid content in underflow slurry is larger.
3) This cyclone can be operated in the various conditions by controlling the rotational speed of the screw so that the size of separation are varied widely (20μm to 4mm)
