Waste liquid evaporation and concentration device

The utility model relates to the technical field of waste liquid treatment, in particular to a waste liquid evaporation and concentration device which comprises a first storage tank, a second storage bin and an evaporation bin, the second storage bin is communicated with the evaporation bin, a drainage pump is arranged on the side, away from the first storage tank, of the second storage bin, and an evaporator is arranged on the side, away from the second storage bin, of the evaporation bin. Slag removal rods are vertically arranged on the bottom edge and the top edge in the first storage tank through sealing bearings, a plurality of steam outlets are formed in the top of the second storage bin, and the side, away from the second storage bin, of the first storage tank communicates with a waste liquid inlet pipe; the slag removal servo motor, the water suction pump, the drainage pump, the evaporator and the slag suction pump are all electrically connected through an external control switch and a power supply. W