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  2. Hot blast - Wikipedia

    en.wikipedia.org/wiki/Hot_blast

    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.

  3. James Beaumont Neilson - Wikipedia

    en.wikipedia.org/wiki/James_Beaumont_Neilson

    Experimentation showed that a temperature of 600°F reduced fuel consumption to a third of that with cold blast, and enabled raw coal to be used instead of coke, with a further cost saving. It also enabled the exploitation of black band ironstone , the use of which had previously proved unprofitable.

  4. List of preserved historic blast furnaces - Wikipedia

    en.wikipedia.org/wiki/List_of_preserved_historic...

    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: Two blast furnaces standing beside the road near river Severn, built in 1756 by Madeley Wood Company, and taken over by the Coalbrookdale Company in 1776. Further furnaces were built in the ...

  5. Blast furnace - Wikipedia

    en.wikipedia.org/wiki/Blast_furnace

    The tuyeres are used to implement a hot blast, which is used to increase the efficiency of the blast furnace. The hot blast is directed into the furnace through water-cooled copper nozzles called tuyeres near the base. The hot blast temperature can be from 900 to 1,300 °C (1,650 to 2,370 °F) depending on the stove design and condition.

  6. Water jacket furnace (metallurgy) - Wikipedia

    en.wikipedia.org/wiki/Water_jacket_furnace...

    Conventional blast furnaces used for smelting iron ore use a hot blast. Water jacket furnaces most commonly used a cold air blast, typically provided by a positive-displacement blower, such as a Roots blower. Preheating of the air blast was used on some water jacket furnaces, but preheating of the blast had no advantage when the furnace was ...

  7. Ferrous metallurgy - Wikipedia

    en.wikipedia.org/wiki/Ferrous_metallurgy

    The efficiency of the blast furnace was improved by the change to hot blast, patented by James Beaumont Neilson in Scotland in 1828. [90] This further reduced production costs. Within a few decades, the practice was to have a 'stove' as large as the furnace next to it into which the waste gas (containing CO) from the furnace was directed and burnt.

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