Shot screening circulating system in large-diameter steel pipe surface shot blasting cleaning

The utility model discloses a shot screening circulating system in large-diameter steel pipe surface shot blasting cleaning, which comprises a steel pipe, a roller wheel for driving the steel pipe to rotate is arranged at the lower end of the steel pipe, a shot blasting device is arranged above the steel pipe, a shot blasting frame body is arranged on the outer side surface of the steel pipe, and a shot collecting cavity is arranged at the lower end of the shot blasting frame body. A first conveying mechanism is arranged on one side of the shot collecting cavity, a first lifting mechanism is arranged at the upper end of the first conveying mechanism, a second lifting mechanism is connected to one side of the first lifting mechanism through a connecting pipe, a second conveying mechanism is arranged at the upper end of the second lifting mechanism, and one side of the second conveying mechanism is connected with a shot blasting device. According to the shot screening and circulating system for the large-diamet