在进一步降低燃料消耗和提高生铁质量的压力下,美国伯利恒钢公司伯恩斯港厂炼铁部决定改进D号高炉的现有布料计算机控制系统。在分析、研究现有系统在操作中的缺陷以后,决定新系统要达到以下目的:①更好地控制料重;②改善焦炭湿度控制; Under further pressure to reduce fuel consumption and improve pig iron quality, the Burnham Steel Plant, a US based Bethlehem steel company, decided to improve the existing fabric computerized control system for its No. D blast furnace. After analyzing and studying the defects of the existing system in operation, the new system is determined to achieve the following objectives: (1) to control the weight of the material better; (2) to improve the control of the coke moisture;