The invention discloses an efficient gravel screening water recycling device which comprises a feeding
pipe, a grid, a liquid level meter, a tank, a water inlet
pipe, a flow meter, a spray head, a rotating shaft, a camera, a
timer, impellers, a
sieve plate, a
vibration exciter, a coarse sand discharging
pipe, a fine sand discharging pipe and a return pipe, wherein the feeding pipe is arranged at the top of the tank, the grid is arranged obliquely in the feeding pipe, the tank is communicated with the water inlet pipe, the spray head is arranged at the outlet end of the water inlet pipe, the rotating shaft is arranged in the tank, the
impeller is mounted on the rotating shaft which is connected with an external motor, the
sieve plate is arranged obliquely in the tank, the lower surface of the
sieve plate is provided with the
vibration exciter, and the upper surface of the sieve plate is provided with a friction strip. The sieve plate comprises a first sieve plate and a second sieve plate, a stirring shaft is arranged between the first sieve plate and the second sieve plate and provided with a plurality of groups of impellers of different sizes, the bottom end of the tank is connected with one end of the return pipe, and the other end of the return pipe is communicated with the water inlet pipe. The efficient gravel screening water recycling device screens gravels, improves working efficiency, saves time and labor, and is simple in structure, convenient to use and favorable for popularization.