The present application relates to the technical field of
solid-liquid separation equipment, and in particular to a
solid-liquid separation device and method for waste
emulsion based on flotation method, comprising a containing cylinder, an opening is set at the top of the containing cylinder, and an
aeration plate is set at the bottom of the containing cylinder; a fixing frame, a mounting ring is rotatably connected to the fixing frame, and a
slag plate is connected to the circumference of the mounting ring; a liquid replenishing cylinder, the liquid replenishing cylinder is connected to the inner cavity of the containing cylinder, and a partition plug is slidably connected inside the liquid replenishing cylinder, the partition plug divides the inner cavity of the liquid replenishing cylinder into two liquid replenishing chambers, and a one-way liquid outlet valve is connected to the
cavity wall of the liquid replenishing chamber; a liquid supply unit; a linkage unit, which is used to make the partition plug reciprocate in the liquid replenishing cylinder to cooperate with the liquid supply unit to replenish liquid into the containing cylinder; the present application has the functions of replenishing the waste
emulsion in the containing cylinder, maintaining the liquid level in the containing cylinder, and improving the
solid-liquid separation efficiency; through the mounting ring, the
slag plate and the linkage unit, the correlation between the
slag discharge of the slag plate and the movement of the partition plug is realized, thereby avoiding the effect of excessive liquid replenishment.