| 摘要 |
PURPOSE:To prevent rotary blades from locking due to the choking of sewage, prevent a pump from getting impossible to pump following the locking, and crush sewage with a simple structure. CONSTITUTION:While kept in a distance up and down each other, a plurality of rotary blades 5 are installed in a rotary shaft 7 which is in a casing 1 and driven to rotate by a motor and a sufficient gap 27 is kept between the inner side of the casing 1 and the tip blade parts 38 of the rotary blades 5 and, at the same time, an air room 16 is formed in the upper part of the casing 1. Consequently, after sewage is finely crushed only by the rotary blades 5 based on the centrifugal separation function, it is scattered toward the outer circumference and discharged out of a flowing outlet 3, thus, the rotary blades 5 are prevented from locking and the motor 16 can be made compact and the diameter of discharging pipe can be made narrow. |
