Smooth moving of belt may be affected from type of material transported especially if this material is adhesive and so can easily adhere on belt surface. In this situation, material residues will be on return rollers which supports belt and this will give rise to accumulation of irregular material on roller. As a result of that, it will lead not only to abrasion and damage of belt and but also diversion of normal track way of belt. Return rollers with disc plays great role in prevention of material accumulation which takes place in some situations on belt surface. Under normal circumstances, discs with sharp edge placed at intervals are available in centre region of roller and in the area which breaks material accumulation into pieces found in centre of belt. Return rollers with disc should not be used as belt tensioning elements
Turkey
