Conveyor belts

Conveyor belts Conveyor belt is the most important element of a belt conveyor installation. The conveyor belt fulfils the task of absorbing the stresses developed at the drive start up, transport the load, absorbs the impact energy at the loading point, withstand temperature and chemical effects (heat, oil and acidity etc.) and meet safety requirements (flame resistance and antistatic etc.). The selection of the conveyor belt specification depends on its application. The schematic cross section of a plied conveyor belt is shown in Fig.1. Conveyor belt has the following components. Carcase – It consists of textile plies, steel weave or steel cord. Covers –  The cover is made up of either rubber or PVC of different qualities Additional components – These components of the conveyor belts are as needed and usually are edge protection, impact protection and longitudinal slitting prevention etc. Special construction elements – These are the profiles on steep incline belts, cleats, or corrugated edges etc. Fig 1 Schematic cross section of a plied conveyor belt Carcase The carcase of a conveyor belt can be made from various materials and in different construction. The most commonly used are textile ply carcases and steel cord.  Textile ply carcases are with one or more textile plies. The maximum numbers of plies can be up to 6 numbers. In monoply belts, a PVC impregnated textile carcase is used. Depending on tensile strength and duty, the carcase fibres are in polyester, polyamide or aramid. In the carcase of steel weave type, the transmission of force is by means of the longitudinal steel cords laid to one another in the same plane. Above this carcase is a transverse layer also of steel which is held in place by a polyamide binder cord. In carcase with steel cord,...