Limiting wheel structure for slurry treatment drum screen

The utility model belongs to the field of mud water treatment systems, and particularly discloses a limiting wheel structure for a mud treatment drum screen, which comprises limiting wheel components positioned on two sides of the same side of the drum screen, each limiting wheel component is provided with a limiting wheel body, a movable support, an adjusting component and a fixed support, and the fixed supports are used for mounting the movable supports and the limiting wheel bodies. The fixing support comprises a supporting plate, a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are both in an L shape and connected to the two side ends of the supporting plate, the first mounting plate and the second mounting plate are integrally formed, and first locking bolts are arranged on the first mounting plate and the second mounting plate. The movable support is arranged on the end face of one side of the supporting plate and connected with the supporting pl