Screening device for zinc ash production

The utility model provides a screening device for zinc ash production, which relates to the technical field of zinc ash processing and comprises a screening barrel, the screening barrel is provided with a feed hopper and a discharge port, the screening barrel is provided with a vibration motor, a multi-stage electric push rod and a discharge channel, a filter screen and a sliding chute are obliquely arranged in the screening barrel, and the sliding chute is located above the filter screen. One end of the filter screen communicates with the discharging channel, a sliding block is arranged in the sliding groove in a sliding fit mode, the sliding block is connected with a multi-stage electric push rod, an air cylinder is arranged on the sliding block, the air cylinder is connected with a dredging piece used for automatically cleaning the filter screen, a conveying box communicating with the discharging channel is arranged on one side of the screening barrel, and a collecting box is movably arranged in the convey