Method of and apparatus for transferring and compacting particulate solids.

摘要

A method of and an apparatus for pumping particulate solids that have an initial bulk density which is lower than its structural density; a flow channel (12) is provided having an inlet (120) and an outlet (129) and includes: (i) an annular drag flow channel segment (L1) formed between a stationary outer wall member (14) and a rotating circular inner wall member (16); and (ii) a straight channel segment (L2) formed between a first planar and stationary wall portion (148) and a second planar and stationary wall portion (182); the inlet (120) of rotary channel (12) is that of the drag flow channel segment (L1) while the outlet (129) of flow channel (12) is that of the straight channel segment (L2); no axial cross-section of the flow channel (12) between the inlet (120) and the outlet (129) is smaller than the axial cross-section of the inlet (120); the particulate solid is passed through the flow channel (12) so as to increase the initial bulk density and to avoid melting and/or thermal degradation of the particulate solid while it passes through the flow channel (12).