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  2. Völklingen Ironworks - Wikipedia

    en.wikipedia.org/wiki/Völklingen_Ironworks

    Aerial view of the Völklingen Ironworks. In 1873, Julius Buch planned and built a steel works near Völklingen on the banks of the Saar river. [1] However, the steel works ceased operation only 6 years later, and were acquired by Karl Röchling. in 1881, construction on a blast furnace for producing iron began, and two years later the first smelter began operation. [1]

  3. Blast furnace - Wikipedia

    en.wikipedia.org/wiki/Blast_furnace

    Modern furnaces are highly efficient, including Cowper stoves to pre-heat the blast air and employ recovery systems to extract the heat from the hot gases exiting the furnace. Competition in industry drives higher production rates. The largest blast furnace in the world is in South Korea, with a volume around 6,000 m 3 (210,000 cu ft). It can ...

  4. List of preserved historic blast furnaces - Wikipedia

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

    The furnaces are preserved in a park or museum, or as a site otherwise open to visitors, or intended to become such. While pre-20th-century blast furnaces already have a long history of monument preservation, the perception of 20th century mass production blast furnace installations as industrial heritage is a comparably new trend. For a long ...

  5. Engelsberg Ironworks - Wikipedia

    en.wikipedia.org/wiki/Engelsberg_Ironworks

    The history of iron production in the region dates back to at least 13th century. The local peasants both mined the ore and produced the iron using primitive furnaces. [2] In the end of the 16th century more modern production methods were introduced in Engelsberg and production volumes increased substantially in the following decades. [2]

  6. Eternal flame - Wikipedia

    en.wikipedia.org/wiki/Eternal_flame

    Nizhny Novgorod Kremlin eternal flame memorializing losses during World War II .. An eternal flame is a flame, lamp or torch that burns for an indefinite time. Most eternal flames are ignited and tended intentionally, but some are natural phenomena caused by natural gas leaks, peat fires and coal seam fires, all of which can be initially ignited by lightning, piezoelectricity or human activity ...

  7. Open-hearth furnace - Wikipedia

    en.wikipedia.org/wiki/Open-hearth_furnace

    The last open-hearth shop in China was shut down in 2001. The process in the form of Twin Hearth Furnace was in use in India's Steel Authority of India Bhilai Steel Plant and some parts of Ukraine. Russia retired its last hearth furnace in March 2018, and was considering preserving it as a museum artifact.