Detaching ring for detaching impeller on slurry pump

The utility model discloses a detaching ring for detaching an impeller on a slurry pump. The detaching ring comprises two same semicircular rings, a right-angle gap is cut at an connecting part of an outer arc surface and one end of an end surface of each semicircular ring, a fastening bolt is arranged at the other end of each semicircular ring, and a through detaching screw hole is arranged at a middle position of the arc surface of each semicircular ring; and the two semicircular rings are butt jointed by the fastening bolts to form a circular ring, and two fastening bolts of the circular ring are respectively arranged at two ends of the circular ring. The detaching ring for detaching the impeller on the slurry pump has the advantages of simple structure, convenience for manufacturing and using, easiness for detaching the impeller, reduction on maintenance cost and shorter maintenance time.