High-efficiency circulating wet grinding device

The invention discloses a high-efficiency circulating wet grinding device which comprises a grinding cavity, a material circulating barrel, a pneumatic membrane pump, a bar-shaped stirring shaft, a vibrator and ultrasonic generators, wherein the grinding cavity is connected to the material circulating barrel through a circulating pipeline; the pneumatic membrane pump is arranged at the downstream of the circulating pipeline between the material circulating barrel and the grinding cavity; an electromagnetic flow meter is arranged on a circulating pipeline on one side of the pneumatic membrane pump; the bar-shaped stirring shaft is vertically arranged at the center in the grinding cavity; a baffle is arranged on the upper part of the bar-shaped stirring shaft; material overflow openings are formed in two sides of the baffle; stainless steel screens are arranged at the material overflow openings; the vibrator is arranged at the bottom of the grinding cavity; a grinding medium fills in the grinding cavity; the ul