Filter and operation method thereof

The invention discloses a filter and an operation method thereof, and belongs to the technical field of filters, the filter comprises a filtering layering assembly and a layering transportation assembly arranged outside the filtering layering assembly; the filtering and layering assembly is used for dividing the spheroidic materials into different layers according to different diameters, and the layering transportation assembly is used for transporting the materials of the different layers in a separated mode. According to the device, the fed materials can be automatically layered according to different diameters, and meanwhile, the materials are automatically and separately conveyed according to different layers, so that the follow-up treatment of the materials with different diameters is facilitated. And through the matched design of the filtering assembly and the mechanical arm in the device, the material treatment efficiency can be improved, and the operation speed is increased. 本发明公开了一种过滤器及其操作方法，属于过滤器技术领