Anyone who has driven a stacker reclaimer knows that the cantilever belt conveyor of the stacker reclaimer uses a heavy hammer type tensioning device. When it encounters sticky or wet incoming materials, the non working surface of the belt conveyor will stick a lot of mineral powder. When the heavy hammer changes direction to the roller, it feels like passing through a scraper, and the mineral powder stuck on it is scraped off by the roller, even causing the belt to deviate and serious material leakage. During the stacking and reclaiming process, the heavy hammer changes direction and is located just below the roller, which is the walking mechanism and track of the stacker reclaimer. The falling material basically covers the reducer, motor, gearbox, and track of the walking mechanism. The phrase "dust on a sunny day, mud on a rainy day" has been popular in raw material factories for a long time, referring not only to the work clothes of employees, but also to the appearance of equipment. For this problem that has troubled the raw material industry for many years, everyone has used waste rubber to cover it - don't tie it up, the rubber will fall off; Tie it with iron wire, it's like a spider web and the effect is not good.