Ads
related to: hotblast wood coal furnace 1300
Search results
Results from the WOW.Com Content Network
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.
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.
The first American smelt of anthracite pig iron was performed July 4, 1840 by principal-partners David Thomas, Josiah White and Erskine Hazard at their Lehigh Crane Iron Works in their first hot blast furnace along Catasauqua Creek aided by Samuel Thomas and the employees of the LCIW, in what became Catasauqua, Pennsylvania in the Lehigh Valley ...
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.
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] No. 2 Furnace was erected in 1842, using waste gas from the stack to heat the blast instead of coal-fired ovens.
The efficiency of the blast furnace was improved by the change to hot blast, patented by James Beaumont Neilson in Scotland in 1828. [89] 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.
Ads
related to: hotblast wood coal furnace 1300