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分析了宝钢1号COREX-3000运行近4年的生产实绩和技术攻关问题。系统总结了COREX-3000的工艺技术和生产操作取得的重大进步,燃料比、焦比和作业率等重要指标逐年改善。影响COREX-3000生产稳定的重大问题已经基本解决,如竖炉清空周期延长,风口破损数大幅减少,下降管和发生煤气管堵塞次数明显减少,铁水质量稳定,设备运行稳定性逐步提高。提出了进一步改进、完善COREX工艺和降低成本的技术方向。
The production performance and technical problems of Baosteel No.1 COREX-3000 for the past four years were analyzed. The system summarizes the significant progress made in the technology and production of COREX-3000. The major indexes such as fuel ratio, coke ratio and operating rate have been improved year by year. The major problems that affect the stability of COREX-3000 production have been basically solved. For example, if the shaft furnace emptying period is prolonged, the number of tuyere breakage is drastically reduced, the number of downcomers and gas pipe plugging is significantly reduced, the quality of molten iron is stable, and the equipment operation stability is gradually improved. Put forward the technical direction of further improving and perfecting the COREX process and reducing the cost.