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1974年初,我厂在华中工学院革命师生的协助下,在厂党总支的领导下,成立了由干部、工人、技术人员参加的技术革新小组,结合我厂现用的2.5吨/时热风曲线炉膛酸性冲天炉的生产情况,前后经七十多炉次的低压喷油试验。实践证明,在冲天炉中喷入少量的废机油、废柴油、重油,助熔化铁,对节约焦炭、提高铁水温度、铁水质量和熔化率方面都收到了显著效果。
In early 1974, with the help of revolutionary teachers and students of Huazhong Polytechnic University, with the help of the faculty and staff of the Huazhong Institute of Technology, a technological innovation group attended by cadres, workers and technicians was established under the leadership of the general branch of the factory. Combined with the 2.5 t / Hot air curve furnace acidic cupola production, before and after more than 70 times by low-pressure fuel injection test. Practice has proved that in the cupola into a small amount of waste oil, waste diesel, heavy oil, to help melt the iron, to save coke, improve the hot metal temperature, hot metal quality and melting rate have received a significant effect.