The present invention relates to the technical field of
solid-liquid separation, and discloses a reaction
precipitation tank integrated with a
solid-liquid separation mechanism, the reaction
precipitation tank comprises a tank body, the bottom of the tank body is provided with a mounting hole, the mounting hole is fixedly provided with a
discharge pipe, the
discharge pipe is internally provided with a valve, and the tank body is internally provided with a liquid extraction
assembly; the liquid pumping
assembly comprises a liquid pumping
pipe, a movable pipe and a fixed pipe, the liquid pumping pipe is vertically arranged in the tank body, the bottom end of the liquid pumping pipe extends into the discharging pipe, the liquid pumping pipe is coaxially sleeved with the fixed pipe, the upper end of the fixed pipe is fixedly connected to the inner wall of the tank body, and the outer wall of the fixed pipe is sleeved with the movable pipe; an annular cavity is formed among the movable pipe, the fixed pipe and the liquid pumping pipe, and a continuous annular liquid flow channel is formed between the particle
solid layer and the liquid pumping pipe through the lifting motion of the movable pipe, so that main body
clear liquid in the tank is efficiently recycled, and the liquid pumping efficiency is improved; and meanwhile, a directional seepage and
discharge path is provided for
interstitial water retained in internal pores of the particle accumulation layer.