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Blast furnaces operate on the principle of chemical reduction whereby carbon monoxide converts iron oxides to elemental iron. Blast furnaces differ from bloomeries and reverberatory furnaces in that in a blast furnace, flue gas is in direct contact with the ore and iron, allowing carbon monoxide to diffuse into the ore and reduce the iron oxide.
Blast furnace gas. Blast furnace gas (BFG) [1] is a by-product of blast furnaces that is generated when the iron ore is reduced with coke to metallic iron. It has a very low heating value, about 93 BTU /cubic foot (3.5 MJ/m 3), [2] because it consists of about 51 vol% nitrogen and 22 vol% carbon dioxide, which are not flammable. The rest ...
Because of the extreme heat inside the furnace (>2000 Kelvin), visual observation of raceway shape and size is impossible, so remotely measuring sensors are used to investigate the chemical and physical reactions inside the furnace. Better understanding of the raceway and PCI method can optimize the performance of a blast furnace and reduce costs.
The most appealing characteristic of the Siemens regenerative furnace is the rapid production of large quantities of basic steel, used for example to construct high-rise buildings. [5] The usual size of furnaces is 50 to 100 tons, but for some special processes they may have a capacity of 250 or even 500 tons.
Jakubany. Jakubany (49°13’02’’N; 20°40’56’’E), Jakubján, Szépesjakobfalva, Jakobsau, Spiš county. The first director of copper smeltery “Nicolaus” in Slovinky near Krompachy Probstner leased and bought after the time primarily exchequer ironworks with Slovak furnace (since 1760) and blast furnace (since 1776) in 1820s.
Carrie Furnace. Carrie Furnace is a former blast furnace located along the Monongahela River in the Pittsburgh area industrial town of Swissvale, Pennsylvania, and it had formed a part of the Homestead Steel Works. The Carrie Furnaces were built in 1884 and they operated until 1982. During its peak, the site produced 1,000 to 1,250 tons of iron ...
Industrial furnace from 1907. 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 ...
Lucy Furnace was a pair of blast furnaces in Pittsburgh, Pennsylvania, on the Allegheny River in Lawrenceville.The furnaces were part of the Carnegie Steel Company, with the first furnace erected in 1871 by brothers Andrew and Thomas M. Carnegie, Andrew Kloman and Henry Phipps Jr. [1] This furnace was the first one built new by the Carnegies. [2]