| 摘要 |
The invention relates to a centrifugal pump with a helical casing, which is used for treating suspensions containing abrasive particles, and ensures long life and stable working diagram. The body of the centrifugal pump or its replaceable shell (10) fit for being received into the body have a helical casing with a profile that is asymmetric in its axial cross section along the periphery of the body or of the shell (10) of the body from the region of a cutwater (80) to a throat region (82). The asymmetry is towards a plane (88), which radially divides into two the body of the shell (10) and the region of the helical casing (60). The pump impeller (20) is supplied with at least one expelling vane (50) for expelling the suspension from the front face of a seal (62) of a cover (44). |
