The Mechanical Handling and Storing of Material

THE HANDLING OF HOT COKE IN GASWORKS 151 Scale: 3/a Inch = I Foot. INCHES 12 ? 3 9 I£?FEET Fig. 203. Wild’s Hot Coke Conveyor. the hot coke, so that the wear of the pins and rollers, as well as of Hot Coke Conveyor.—This appliance, which is illustrated Fig. 204. De Brouwer Hot Coke Conveyor. this type of conveyor is that the chains, etc., are outside, and that only the push-plates come in contact with the chains, is minimis The De Brou in Fig. 204, is em- ployed to a consider- able extent in both Continental and British gasworks, and was designed by the Belgian engineer whose name it bears. The conveyor con- sists of an open rect- angular wrought-iron trough of substantial construction, 1 ft. 8 in. to 3 ft. in width, and 3 to 6 in. in depth, extending along the entire front of the retort settings. This trough is fitted with renewable cast-iron bottom plates with raised strips along each side, forming continuous ledges along which run two strands of chain, joined at intervals of about 2 ft. by flat cross-bars. The chain consists of block links, alternating with double side links, the bosses of which work in holes in the blocks, and are held together by steel rivets. The blocks being deeper than the links, take all wear caused by running along the track. The chains are protected from coke falling into them by cover angles or tees bolted to the sides of the trough, as shown in the illustra- tions. The return strand of the chain is usually carried on a path formed of steel angles, with cast- iron wearing strips bolted on. This may be arranged under the floor as shown in Fig. 204, or carried on brackets overhead. These conveyors are usually arranged horizontally in front of. the retort bench, but work equally well up to an angle of 35°, or if extra deep cross-bars are used, up to 45° or 50°. Before the hot coke is fed in, the trough is filled with water to a certain depth throughout its length. The coke, as soon as it is drawn along by the conveyor bars, which act as push-plates, sweeps the water before it along the trough. This action