Combined defoaming device for super-stable flotation clean coal foam

The invention belongs to mineral processing flotation, and discloses a combined defoaming device for super-stable flotation clean coal foam, which comprises a bracket, a defoaming cylinder is arranged on the bracket, and a defoaming mechanism is arranged in the defoaming cylinder; the defoaming mechanism comprises a driving assembly arranged at the top end of the defoaming cylinder, and the output end of the driving assembly is in transmission connection with a stirring assembly extending into the defoaming cylinder; a defoaming assembly is arranged on the stirring assembly and is in transmission connection with the driving assembly; the defoaming assembly comprises a lifting block slidably arranged on the stirring assembly, and the lifting block is in transmission connection with the driving assembly; a plurality of defoaming rakes arranged at equal intervals are fixedly connected to the lifting block, a plurality of cutters are arranged on the defoaming rakes, and the cutters communicate with inner cavities