Hot Blast Smelting Furnace

“Smelting is the act or process of obtaining metal from ore by the combined action of heat, air, and fluxes. In smelting iron the ore is first roasted in a kiln in order to drive off the water, sulphur, and arsenic with which it is more or less combined in its native state, and is then subjected to the heat of a blast furnace along with certain proportions of coke or coal and limestone, varying according to the composition of the ore to be heated."—(Charles Leonard-Stuart, 1911)

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