The Mechanical Handling and Storing of Material

COKE FROM COKE OVENS 373 conveyor to be removed. With this system the ramp is at an incline of from 30 to 40 , this is sufficient for the coke to slide down j with a Issser incline the flaps are not necessary, and the coke is then raked down. One of these appliances is used at the Manvers Main Colliery. A similar plant is that of the Soc. Ilva, at Bagnoli, near Naples, it was built by F. Méguin & Co., in Dillingden. In this the conveyor consists of short links and stout plates, terminating at the side of the trough by short angle-iron rims; each second link is provided with a spindle and a pair of wheels. The links and bolts are of manganese steel, whilst the rollers are of chilled iron, with addition of steel, Fig. 524. Coke Conveyor of the Soc. Ilva, at Bagnoli, near Naples. they are also self-lubricating with a viscous grease, so as to exclude dust. This conveyor is 328 ft. from centre to centre of terminals, is about 3 ft. wide (850 mm.), and handles the coke from two batteries of sixty ovens each, being placed centrally between the two hearths (see Fig. 524). The driving power is furnished by a 12 H.P. electro-motor, which is exceedingly moderate for so large an installation, especially as the delivery end raises the coke to a sufficient height to deliver into a screen, from which the fine coke falls into a bunker, whilst the coarse is conveyed by a swinging shoot into mono- rail sling skips, which are conveyed by the Telfer system to the sloping hoist of the blast-furnace. The quenching of the coke is effected by means of flexible hose from hydrants on gangway a, situated above the conveyor at suitable intervals. The lower encl of each ramp b is closed by flaps c suspended from the gangway, and operated by a bell-