A sand screening mechanism is arranged in the middle of a
machine frame, a water sprinkling mechanism is arranged on the left side of the
machine frame, a rotating shaft of a screen drum is subjected to offset treatment, so that when a motor drives the screen drum to rotate, pure circumferential rotation is avoided, eccentric vibration is increased, the
vibration amplitude of the screen drum is enhanced, and sand and stone in the screen drum are separated more easily; flying dust generated due to the fact that the
vibration amplitude of the screen drum is increased is pressed through the water spraying mechanism, a
water pipe of the water spraying mechanism is a universal
pipe, the direction can be freely adjusted, the flying dust can be better pressed,
pollution is reduced, and the screen drum and the
machine frame can be better cleaned in the cleaning process. And in addition, the water sprinkling mechanism can reciprocate, so that the problem that the water sprinkling mechanism only sprinkle water to one position of the screen drum all the time is solved, the
workload of a user is reduced, the water sprinkling device can uniformly sprinkle water, and finally the effects of improving the production efficiency and reducing
pollution are achieved.