The invention discloses a self-rotating clean collecting device, and belongs to the technical field of
filtration. The device is characterized by consisting of a main pipeline or an outer shell, a filter screen
assembly, a self-rotating scouring scraper
assembly, a conical
impeller, a rotating shaft, a rear bearing supporting
assembly, a rear bearing assembly, a front bearing supporting assembly,a front bearing assembly and an extraction
pipe; the self-rotating scouring scraper assembly and the conical
impeller are arranged on the rotating shaft positioned at the rotation axis of the conicalfilter screen assembly, and the rotating shaft is supported and positioned through the front and rear bearing assemblies and generates self rotation under the action of fluid in the main pipeline or the outer shell; the
solid substances in the fluid are filtered in a filter screen, collected at the
tail part of the filter screen assembly under the combined action of the self-rotating scouring scraper assembly, the conical
impeller and the fluid and then extracted from the extraction
pipe; and meanwhile, the filter screen assembly keeps clean all the time under the combined action of the self-rotating scouring scraper assembly, the conical impeller and the fluid. The device has good collecting effect, low flow resistance and long service life.