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History
James Beaumont Neilson
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James Beaumont Neilson was a Scottish inventor whose hot-blast process greatly increased the efficiency of smelting iron.
James Beaumont Neilson
James Beaumont Neilson
Bust of James Beaumont Neilson, People's Palace, Glasgow
Bust of James Beaumont Neilson, People's Palace, Glasgow
Neilson's Monument near Ringford, Kirkcudbrightshire
Neilson's Monument near Ringford, Kirkcudbrightshire
Hot blast
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Hot blast refers to the preheating of air blown into a blast furnace or other metallurgical process. As this considerably reduced the fuel consumed, hot blast was one of the most important technologies developed during the Industrial Revolution. Hot blast also allowed higher furnace temperatures, which increased the capacity of furnaces.
Blast furnace (left), and three Cowper stoves (right) used to preheat the air blown into the furnace.
Blast furnace (left), and three Cowper stoves (right) used to preheat the air blown into the furnace.
Hot blast furnace: note the flow of air from the stove in the background to the two blast furnaces, and hot air from the foreground furnace being draw
Hot blast furnace: note the flow of air from the stove in the background to the two blast furnaces, and hot air from the foreground furnace being drawn off to heat the stove.