Chemical engineering . I.—HELICAL HEARTHROASTING FIG. 2.—ROASTING FURNACE. bottom and traversed by a number of arches, b, c, d. Thespace beneath the bottom arch at one end communicates withthe outer air through passages e, arranged in one of the abut-ment walls of the arch, while the other end is connected witha gas-fire chamber and a chamber f, arranged beside the latter in the other abutment-wall. The gas is supplied to the fire-chamber through a pipe g. The space beneath the arches above b. communicates at one end with f and at theother end with h, arranged in the oppos
Chemical engineering . I.—HELICAL HEARTHROASTING FIG. 2.—ROASTING FURNACE. bottom and traversed by a number of arches, b, c, d. Thespace beneath the bottom arch at one end communicates withthe outer air through passages e, arranged in one of the abut-ment walls of the arch, while the other end is connected witha gas-fire chamber and a chamber f, arranged beside the latter in the other abutment-wall. The gas is supplied to the fire-chamber through a pipe g. The space beneath the arches above b. communicates at one end with f and at theother end with h, arranged in the opposite abutment-wall andcommunicating at its upper part with one end of the spacebeneath the arches d. This space at the other end com-municates with chamber i, which connects with the chimney air used for the combustion of the gas will thus be heatedby the material to be roasted in the lower part of the furnaceas the air passes to the chamber f, and the products of com-bustion subsequently flow back and forth through the materia!to be roasted on th
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmetallu, bookyear1902
