The invention discloses a
sewage sedimentation tank for a waste
incineration power
plant, belongs to the technical field of
waste treatment, and solves the problems that an existing device cannot classify and screen impurities in a
sedimentation tank, and the later screening cost is increased. The
sewage sedimentation tank is technically characterized by comprising a tank body, a filtering cavityand a
settling cavity are formed in the tank body, the upper part of the filtering cavity is provided with the
settling cavity, the filtering cavity is communicated with the
settling cavity, a settling
assembly is arranged in the settling cavity, a filtering
assembly is arranged in the filtering cavity, and a water
injection port is fixedly formed in the upper surface of the tank body and communicated with the filtering cavity. A cleaning
assembly is arranged; due to the arrangement of the cleaning assembly, impurities are cleaned, and the
sewage filtering efficiency is improved. Meanwhile, due to the arranged setting assembly, sedimentation of the sewage is facilitated, the phenomenon that impurities are not cleaned thoroughly is avoided, an
air pump is started to blow air into an
aeration pipe, the air is released through an
aeration spray head, accumulation of impurities on a second filter screen can be effectively avoided, and the filtering efficiency is improved.