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The furnaces have a mean diameter of 93.6 cm (36.9 in), [4] ranging between 86–103 cm (34–41 in) in diameter, with 10 of the 11 furnaces between 93–103 cm (37–41 in). [5] In KM2, large amounts of industrial debris and domestic pottery were dumped into a refuse pit alongside discarded furnace bricks, slag , tuyères, iron fragments, and ...
Originally a charcoal furnace, the old blast furnace at Coalbrookdale was leased in 1709 by Abraham Darby I, who used it to make coke pig iron and created the first long-term business to do so. The furnace remained in use until the 19th century and now forms part of the Ironbridge Gorge Museum Trust's Museum of Iron. IGMT: Madeley Wood or Bedlam
By 1776, up to 80 iron furnaces throughout the American colonies were producing about as much iron as Britain itself. If one estimate of 30,000 tons of iron each year is accurate, then the newly formed United States was the world's third-largest iron producer, after Sweden and Russia. Notable pre-19th-century iron furnaces in the US
Lead blast furnaces are often open-topped rather than having the charging bell used in iron blast furnaces. [78] The blast furnace used at the Nyrstar Port Pirie lead smelter differs from most other lead blast furnaces in that it has a double row of tuyeres rather than the single row normally used. [76] The lower shaft of the furnace has a ...
Hopewell Furnace stove, 10-plate cooking model, with a lower firebox and upper oven for baking. Hopewell Furnace National Historic Site in southeastern Berks County, near Elverson, Pennsylvania, is an example of an American 19th century rural iron plantation, whose operations were based around a charcoal-fired cold-blast iron blast furnace.
A metallurgical furnace, often simply referred to as a furnace when the context is known, is an industrial furnace used to heat, melt, or otherwise process metals. Furnaces have been a central piece of equipment throughout the history of metallurgy ; processing metals with heat is even its own engineering specialty known as pyrometallurgy .