Along with exhibits on forge history in the old blast furnace, an interpretive path guides you around the site.
Coke and iron, the raw materials, were combined in a blast furnace to make liquid pig iron.
British Dictionary definitions for blast furnace
a vertical cylindrical furnace for smelting iron, copper, lead, and tin ores. The ore, scrap, solid fuel, and slag-forming materials are fed through the top and a blast of preheated air is forced through the charge from the bottom. Metal and slag are run off from the base