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Hot blast allowed the use of anthracite in iron smelting. It also allowed use of lower quality coal because less fuel meant proportionately less sulfur and ash. [11]At the time the process was invented, good coking coal was only available in sufficient quantities in Great Britain and western Germany, [12] so iron furnaces in the US were using charcoal.
James Beaumont Neilson (22 June 1792 – 18 January 1865) was a Scottish inventor whose hot-blast process greatly increased the efficiency of smelting iron. Life
On February 5, 1837, Thomas used a hot blast to smelt iron ore and anthracite coal. [2] The result was an easy method to produce anthracite iron, which revolutionized industry in the Swansea Valley. This type of iron had been patented by Edward Martin of Morriston, Wales in 1804.
Hot blast was the single most important advance in fuel efficiency of the blast furnace and was one of the most important technologies developed during the Industrial Revolution. [67] [68] Hot blast was patented by James Beaumont Neilson at Wilsontown Ironworks in Scotland in 1828. Within a few years of the introduction, hot blast was developed ...
The hot blast pumps hot air into the blast furnace. The hot blast temperature ranges from 900 to 1,300 °C (1,650 to 2,370 °F) depending on the design and condition. Oil, tar , natural gas, powdered coal and oxygen can be injected to combine with the coke to release additional energy and increase the percentage of reducing gases present ...
R. E. Dietz Co., Ltd. (formerly R. E. Dietz Company) is a lighting products manufacturer best known for its hot blast and cold blast kerosene lanterns. The company was founded in 1840 when its founder, 22-year-old Robert Edwin Dietz, purchased a lamp and oil business in Brooklyn, New York.
The ovens for the hot blast were coal-fired, and the blowing engine was driven by a waterwheel tapping the canal at Lock 36. The furnace was blown in on July 3, 1840 and the first four tons of iron produced July 4, 1840. It remained in blast until flooded by a January freshet in 1841, producing 1,080 tons of iron during that period. [6]
The Scrantons instead used the new "hot blast method," developed in Scotland in 1828. [7] The hot blast method solved the problem of impurities from the coke, by burning them off. The Scrantons also experimented with anthracite to make steel, rather than charcoal or bituminous coal. [9]