西德科夫工程公司于1978年继科夫平法成功之后,研制出 EOF(Energy optimizingfurnacc)节能炼钢炉。先在南非试验,1982年初巴西建造了一座25吨 EOF 试验炉,同年12月又投产一座28吨,有废钢预热装置的EOF 工业生产炉,年产钢20万吨。 EOF 炉呈圆形不倾动,有水冷炉顶,炉墙大部是水冷炉墙。空气预热装置尚未建成(1983.11月)。EOF 法工艺如图所示。炉料为铁水-50%,废钢和冷生铁-50%;和平炉熔池下水平吹氧一样,加速了冶金反应;气态反应产物 CO 和 H_2直接与熔池表面空气中的 O_2完全二次燃烧成 CO_2,给炼钢供热,热效率高;用预热废钢的废气来预热空气,使热风和氧气吹入炉内空间,气体呈涡流运动,可促成极为有利的反应,并可降低氧气消耗 After the successful implementation of the Covef method in 1978, the Westcock Engineering Company developed the energy optimizing furnace (EOF) steelmaking furnace. First test in South Africa, Brazil in early 1982 built a 25 tons EOF test furnace, in December the same year put into operation a 28 tons, scrap preheater EOF industrial production furnace, with an annual output of 200,000 tons of steel. EOF furnace is not tilted round, with water-cooled roof, most of the water wall furnace wall. Air preheating device has not yet completed (1983.11 months). EOF process as shown. The charge is accelerated by a rate of 50% for hot metal and -50% for scrap and cold pig iron. As with the horizontal blown oxygen in the hearth bath, the metallurgical reaction is accelerated. The gaseous reaction products CO and H_2 are directly and secondarily burnt into the CO_2 , To the steel heating, high thermal efficiency; Preheat the exhaust waste gas to preheat the air, so that hot air and oxygen into the furnace space, the gas was eddy currents, can promote extremely favorable reaction, and can reduce oxygen consumption