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Rendering of a ladle furnace, a variation of the electric arc furnace used for keeping molten steel hot. For steelmaking, direct current (DC) arc furnaces are used, with a single electrode in the roof and the current return through a conductive bottom lining or conductive pins in the base. The advantage of DC is lower electrode consumption per ...
Between 1900 and 1915 there are three active types of electric arc furnaces in the industrial field: the Stassano indirect arc furnace, the Heroult direct arc furnace with non-conductive soles, and the Girod direct arc furnace with conductive soles. The Heroult furnace is, among the three, the most suitable for large-scale production, so that ...
Articles on particular furnaces should be in categories for particular countries subcategories of Category:Iron and steel mills or the equivalents for other metals. Subcategories This category has the following 5 subcategories, out of 5 total.
An industrial furnace, also known as a direct heater or a direct fired heater, is a device used to provide heat for an industrial process, typically higher than 400 degrees Celsius. [1] They are used to provide heat for a process or can serve as reactor which provides heats of reaction. Furnace designs vary as to its function, heating duty ...
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 known as pyrometallurgy .
A plasma torch powered by an electric arc is used to ionize gas and catalyze organic matter into syngas, with slag [1] [2] [3] remaining as a byproduct. It is used commercially as a form of waste treatment , and has been tested for the gasification of refuse-derived fuel , biomass , industrial waste , hazardous waste , and solid hydrocarbons ...
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Earlier processes for this included the finery forge, the puddling furnace, the Bessemer process, and the open hearth furnace. Modern steel mills and direct-reduction iron plants transfer the molten iron to a ladle for immediate use in the steel making furnaces or cast it into pigs on a pig-casting machine for reuse or resale. Modern pig ...