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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]
For many years, the Gary Works was the world's largest steel mill, and it remains the largest integrated mill in North America. [1] It is operated by U.S. Steel. The Gary Works includes both steelmaking and finishing facilities as an integrated mill, and has an annual capacity of 8.2 million tons. [2] It contains: [3] Four blast furnaces
The partnership erected a blast furnace and casting shop against the hillside, which created a weekly output of 25 tons of pig iron per week. Called "Pen y cae" after the farming hamlet by the locals, the partners adopted the river's name to form the Ebbw Vale Furnace Company Ltd (EVC), hence naming both the works and the developing township. [1]
Integrated steel mill in the Netherlands.The two large towers are blast furnaces.. A steel mill or steelworks is an industrial plant for the manufacture of steel.It may be an integrated steel works carrying out all steps of steelmaking from smelting iron ore to rolled product, but may also be a plant where steel semi-finished casting products are made from molten pig iron or from scrap.
The puddling furnace is a metalmaking technology used to create wrought iron or steel from the pig iron produced in a blast furnace. The furnace is constructed to pull the hot air over the iron without the fuel coming into direct contact with the iron, a system generally known as a reverberatory furnace or open hearth furnace .
Kaiser Steel was a steel company and integrated steel mill near Fontana, California. Industrialist Henry J. Kaiser founded the company on December 1, 1941, and workers fired up the plant's first blast furnace , named "Big Bess" after Kaiser's wife, on December 30, 1942.
The furnace is tapped in the same way a blast furnace is tapped; a hole is drilled in the side of the hearth and the raw steel flows out. Once all the steel has been tapped, the slag is skimmed away. The raw steel may be cast into ingots, a process called teeming, or it may be used in continuous casting in the rolling mill. [4]
Blast Furnace No.1 was built between 1938 and 1941, blown in 1941, relined in 1965, closed in 1981 and demolished 1997. Blast Furnace No.2 was built in 1965, relined 1981 and again in 2004. The Boilerhouse was built in 1941 with 3 boilers. Boiler No.4 was added in 1950 and Nos. 5 and 6 in the late 1960s.