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Description
A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally iron.
In a blast furnace, fuel and ore and flux (limestone) are continuously supplied through the top of the furnace, while air (sometimes with oxygen enrichment) is blown into the bottom of the chamber, so that the chemical reactions take place throughout the furnace as the material moves downward. The end products are usually molten metal and slag phases tapped from the bottom, and flue gases exiting from the top of the furnace. The downward flow of the ore and flux in contact with an upflow of hot combustion gases is a countercurrent exchange process. This one located in Torsåker municipality south of Hofors, Sweden

Description
A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally iron.
In a blast furnace, fuel and ore and flux (limestone) are continuously supplied through the top of the furnace, while air (sometimes with oxygen enrichment) is blown into the bottom of the chamber, so that the chemical reactions take place throughout the furnace as the material moves downward. The end products are usually molten metal and slag phases tapped from the bottom, and flue gases exiting from the top of the furnace. The downward flow of the ore and flux in contact with an upflow of hot combustion gases is a countercurrent exchange process. This one located in Torsåker municipality south of Hofors, Sweden