Transactions . perforated at the top and mounted upon a cast-iron spider,which is carried on a vertical shaft. The shaft is suspended at thetop in a specially designed anti-friction bearing, arranged so as to re-duce the power required for operation to a minimum. The water isadmitted into the top of the washer and overflows from section tosection through the gas ports, the dirty water saturated with dustleaving the bottom of the washer. When the shaft revolves, the cones do likewise, and the water israised by centrifugal force along the inner sides of the cones and isatomized at the upper edge
Transactions . perforated at the top and mounted upon a cast-iron spider,which is carried on a vertical shaft. The shaft is suspended at thetop in a specially designed anti-friction bearing, arranged so as to re-duce the power required for operation to a minimum. The water isadmitted into the top of the washer and overflows from section tosection through the gas ports, the dirty water saturated with dustleaving the bottom of the washer. When the shaft revolves, the cones do likewise, and the water israised by centrifugal force along the inner sides of the cones and isatomized at the upper edge. This upper edge of each cone is a littlehigher than the next outer one, thereby forming a certain number ofhorizontal sprays of water, depending on the number of cones. Theupper portion of the outer cone, which is somewhat higher than theinner one, is perforated. The inner cones supply water to the per-forated surface of the outer one. This results in the formation of a 378 THE CLEANING OF BLAST-FURNACE Fig. 18.—Feld Gas Washer. THE CLEANING OP BLAST-FURNACE GAS. 379 series of cascades composed of very small drops of water, throughwhich the gas must pass en route through the apparatus. The washing is accomplished mostly in the lower sections, whilethe upper sections perform primarily the function of cooling the gas. For primary washing, the Feld washer is constructed with sevenchambers or sections, the lower three being the washing chambers,the fourth one being a separating chamber and the upper three beingthe cooling chambers. For final washing, in the case of the gasbeing required for gas-engine purposes, the gas after being primarilycleaned is passed through an additional washer of the same generalarrangement. Reco Centrifugal Gas Washer. This gas washer is constructed by the Roessing-Ernst Co., ofPittsburg, Pa., and is designed to cool, clean and, if necessary, drythe gas in one apparatus. This washer consists substantially of a ver-tical outer casing, a tube whos
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries
