论文部分内容阅读
1.简介在日本,电炉钢产量占全部粗钢产量的26.6％。而在2千万吨电炉钢中,普通钢的比重为75.2％。尽管操作技术的长足进步已经大大降低了生产费用,但节能仍然是电炉操作的一项重要任务。二次精炼技术的最新发展使得不管生产普通钢还是特殊钢,高效与节能在技术上都是一致的。电炉生产普通钢的能耗费用占全部生产费用的16％,因此电炉炼钢的节能确是一大问题。过去十年中炼钢工业的节能实践有很大的进步。全部粗钢每吨平均能耗下降了10％,其中电炉钢每吨能耗几乎下降20％。
1. Introduction In Japan, EAF steel production accounts for 26.6% of the total crude steel output. In 20 million tons of EAF, the proportion of ordinary steel was 75.2%. Although significant advances in operating technology have significantly reduced production costs, energy savings remain an important task for EAF operation. The latest developments in secondary refining technology make it technically identical both in terms of efficiency and energy savings, whether producing ordinary steel or special steel. Electric furnace production of ordinary steel energy costs account for 16% of the total production costs, so the electric furnace steelmaking is indeed a big problem. The energy saving practices in the steelmaking industry have greatly improved over the past decade. The average energy consumption per ton of crude steel dropped by 10%, of which the energy consumption per EAF dropped by almost 20%.