Basic-Oxygen Furnace Sample Clauses

Basic-Oxygen Furnace. Basic Oxygen Furnace (BOF), also named Basic Oxygen Furnace Steelmaking (BOS) or Linz-Donawitz-Verfahren steelmaking or the oxygen converter process, is a method in which both molten pig iron and steel scrap are converted into steel with the oxidizing action of oxygen blown into the melt under a basic slag. BOFs include conventional top-blown furnaces, bottom blown furnaces, and various mixed blowing configurations and inert gas bottom stirring modifications. The top blown basic oxygen furnace is equipped with the water-cooled oxygen for blowing oxygen into the melt through 4-6 nozzles; the bottom blown basic oxygen furnace is equipped with 15-20 tuyeres for injection of oxygen or lime powder containing oxygen.49 To produce 1,000 kg of crude steel, the main inputs for the BF-BOF route are roughly: 1,370 kg of iron ore (accounts over just 50% of BOF steel costs); 780 kg of coal; 270 kg of limestone; 125 kg of steel scrap; self-sufficient in energy. A BOF can be charged with as much as 30% scrap.50 47 “Comparative Study of Iron and Steel Industry Transition in the Countries of Central-East Europe and Former Soviet Union”, V. Shatokha, 2017. 48 xxxxx://xxx.xxxxxxxxxx.xxx/technology/steel/Open-hearth-steelmaking 49 xxxxx://xxx.xxxxx-xxxxxxxxxx.xxx/articles/oxygenfurnace 50 xxxxx://xxx.xxxxxxxxxx.xxx
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