5. Pig iron production cost efficiency
Since the brick from the Cowper was invented in the 1860s, bricks have had several shapes and hollows, but the hexagonal brick with circular vertical hollows has been the most advanced and widely utilized for building and function.The technical performance of regenerators depends on the refractory mass that accumulates heat and the vertical voids that ensure the circulation of hot gases that heat the brick in the first phase, which is the heating phase, and then on the oxygen-enriched air that takes the heat from the bricks and feeds the furnace in the blowing phase. About every hour, the phases switch. 150-200 degrees Celsius separates the phases.
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