唐山钢厂第一炼钢车间,最近转炉生产的生铁消耗量有了显著的降低。今年4月份,该车间的生铁消耗为1632.19kg/吨,到8月份已降低至1341.23kg/吨,9月份的1～6日继续降低到1235.36kg/吨。这是由于全体职工继续深入开展了增产节约运动和优质、高产、高寿,节约、安全五比红旗竞赛的结果,同时也由于在技术管理和实际生产中,采取了许多降低生铁消耗的措施的结果。现将其采取的主要的措施综述如下:(1)在化铁炉方面:铁水温度和铁水成份对生产消耗有很大的影响,高温操作这是转炉炼钢的最重要要求,温度高,使反应快而稳,化渣快喷溅少,利于去硫,而尤其是在扒渣前(指双渣法)去硫,温度高时 FeO 低,更利于去硫。又如若扒前温度高时,可加无烟煤能使 FeO 降到2%以下,大大提高去硫效率。从化铁炉本身方面,温度高这是降低硅损、铁损和去硫的主要条件之一.在铁水成份方面,硅高能保证温度和增强 The first steelmaking plant in Tangshan Iron and Steel Mill, pig iron consumption recently produced converter has been significantly reduced. In April this year, the pig iron consumption of the workshop was 1632.19kg / tonne, which dropped to 1341.23kg / tonne in August and continued to decrease to 1235.36kg / tonne on the 1st to 6th of September. This is because the entire staff and workers continued to carry out the results of the campaign to increase production and save energy and the competition of high quality, high yield, longevity, economy and safety. At the same time, as a result of measures taken to reduce pig iron consumption in technical management and actual production . Now the main measures taken by them are summarized as follows: (1) In the iron furnace: the temperature of hot metal and the composition of hot metal have a great influence on the production and consumption. High temperature operation is the most important requirement of converter steelmaking. The reaction is fast and stable, less slag quickly splashed, which is good for desulfurization, especially in the slag before (referring to double slag method) to desulfurization, high temperature FeO low, more conducive to desulfurization. And if the temperature before the grill, add anthracite can make FeO dropped below 2%, greatly improving the desulfurization efficiency. From the furnace itself, the high temperature, which is to reduce silicon loss, iron loss and desulfurization of the main conditions in the hot metal composition, the silicon to ensure high temperature and enhanced