Definition of blast furnace in English:

blast furnace

noun

  • A smelting furnace in the form of a tower into which a blast of hot compressed air can be introduced from below. Such furnaces are used chiefly to make iron from a mixture of iron ore, coke, and limestone.

    • ‘The explosion occurred when molten iron leaked from a blast furnace.’
    • ‘It was extremely hot, like standing in front of a blast furnace at a steel works.’
    • ‘The traditional method for extracting pure iron from its ore is to heat the ore in a blast furnace with limestone and coke.’
    • ‘The roasting process uses oxygen in a blast furnace to convert the metal sulfide into the metal or the metal oxide plus sulfur dioxide.’
    • ‘At last it was now possible to use the gas, which was produced by the blast furnace in gigantic quantities in the process of smelting iron, to drive engines.’

Pronunciation

blast furnace

/ˈblæst ˈˌfərnəs//ˈblast ˈˌfərnəs/