Turbid circulating water sedimentation and filtration tank

The invention relates to the technical field of industrial automation, in particular to a turbid circulating water settling and filtering tank which comprises a filtering assembly, a settling barrel, a screw arranged in the settling barrel, a moving block arranged on the outer wall of the screw and a filtering plate arranged on the outer wall of the moving block. The unblocking assembly comprises a blocking cover arranged on the end face of the settling barrel, a first supporting shaft arranged on the inner wall of the blocking cover, first helical teeth rotationally arranged on the outer wall of the first supporting shaft and a first rotating rod arranged on the outer walls of the first helical teeth; air pollution caused by stimulation gas is solved through the closed sedimentation tank, sediment such as internal sediment is automatically collected together through a mechanical structure, internal gas is collected and treated together through a sediment collecting pipeline, and the problems that sediment in