Foam tank for flotation

The utility model discloses a foam tank for flotation. The foam tank comprises a foam scraping tank, a foam scraping structure, a gear motor, a tank body, a defoaming structure and an operation box, the foam scraping structure is mounted in the foam scraping groove and consists of a rotating shaft and a plurality of scraping plates mounted on the rotating shaft, and the rotating shaft is connected with the speed reducing motor; the foam scraping tank is mounted at the front upper part of the tank body; a defoaming structure is mounted on the tank body; the defoaming structure comprises a water inlet header pipe, a water supply pipe, a water pump, a water spray header pipe and spray pipes; the two water inlet main pipes are distributed on the two sides of the tank body. The foam tank adopts the spray pipes with different water spray point directions and different forces, so that the foam tank has a comprehensive defoaming effect; in addition, the caliber of a water spraying point is small, the use amount of de