Belt conveyor, roll handling

Belt conveyors belt speed 1 m/s handling solids of density 1.6 Mg/m with steel welded frame, head and tail pulley, troughing idlers, roller bearings, cold rolled steel shafters, four ply, 28 oz belt excluding motor, drive and supports. FOB cost = 21000 for the product of (solids capacity, Mg/h) X (length, m) = 10 with n = 0.20 for the range 5000-5 X 10. L+M = 1.7-2.7. L/M = 0.3. 

This type of "belt" conveyor is equipped with a cold-rolled hardened steel band in lieu of a "rubber" belt and is used for special purposes. The thickness of the band is usually in the range of 1.0 to 1.5 mm. Because of the flat and smooth surface of the band, the material can very suitably be discharged by means of ploughs (or scrapers). Such conveyors are not very suitable for the handling of hot materials unless the band acquires a uniform temperature across its whole width otherwise buckling is liable to occur in consequence of differential thermal expansion, causing serious trouble in the operation of the conveyor. 

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