| 摘要 |
<p>A shredder (10) for reducing the size of solids in sludge has a casing (14) with an axial opening (26) for receiving the sludge and at least one tangential exit (38) for expelling the sludge. A primary rotor (80) having a first plurality of blades (84) draws at least a portion of the sludge into the casing (14) via the opening (26) to initially reduce the size of the solids. A secondary rotor (100) positioned within the casing (14) and having a second plurality of blades (102) draws the sludge into the casing (14) through the opening (26) and expels the sludge from the casing (14) via the at least one tangential exit (38). A plurality of teeth (54, 62, 66) disposed within the casing (14) cooperate with a forward portion (104) of each of the second plurality of blades (102) to further reduce the size of the solids.</p> |
