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南昌钢铁厂自筹资金450万元,建成一条18m~2平面循环烧结生产线,每生产1吨烧结矿只投入45元,创全国低投入的最好水平。 该厂255m~3高炉由于铁前系统不配套,限制了喷煤和富氧鼓风等先进工艺设施的充分发挥,影响了生铁产量和质量的提高。为改变铁前滞后的状况,1990年4月,他们利用已停产13年的54m~2隧窑熔烧球团生产线的基础设施和设备,建成这条生产线。每年可生产烧结矿10万吨,使高炉熟料率提高50％,增铁1.74万吨,节焦1.9万吨,综合受益价值900万元。
Nanchang Iron and Steel Plant self-financing 4.5 million yuan to build a 18m ~ 2 plane cycle sintering production line, each producing 1 ton of sinter only invested 45 yuan, creating a national low-input the best level. The 255m ~ 3 blast furnace of the plant, which is not suitable for the pre-iron system, has given full play to the advanced technology and facilities such as coal injection and oxygen-enriched blasting, which has affected the improvement of pig iron production and quality. In order to change the situation before the iron lag, in April 1990, they built the production line using the infrastructure and equipment of the 54m ~ 2 tunnel sintering plant that has been discontinued for 13 years. Annual production of 100,000 tons of sinter, the blast furnace clinker rate increased by 50%, 17,400 tons of iron, section coke 19,000 tons, the comprehensive benefit value of 9 million yuan.