The invention discloses an oil-water separation device with a residue removal function, and belongs to the field of
water treatment.The oil-water separation device is characterized in that a
solid-liquid separation module is integrated on an oil-water separation module, a liquid outlet of the
solid-liquid separation module is connected with a liquid inlet pipeline of the oil-water separation module, before oil-water separation,
solid residues are removed firstly and prevented from entering the oil-water separation module, and then the oil-water separation module is separated; solid residues do not need to be manually removed or an oil outlet and a water outlet do not need to be continuously cleaned; a conical hopper box and a vacuum oil collection box are arranged on an oil-water separation box, an oil suction
pipe is arranged in the vacuum oil collection box, the bottom end of the oil suction
pipe extends into the conical hopper box, an oil outlet is formed in the side face of the vacuum oil collection box, a vacuum
pipe is arranged at the top of the vacuum oil collection box, and the vacuum pipe is connected with a vacuum
system. The floating oil is collected more thoroughly; the vacuum oil collecting tank is arranged at the top of the conical hopper box, negative pressure oil suction is adopted, a valve is arranged on a pipeline, oil outlet is more convenient, and
automatic control can be achieved.