The operation shows that the control accuracy of the system is high which is helpful to safe operation of the furnace and lowering energy consumption.
生产运行表明，整个系统控制精度高，既可以实现煤气熔铝炉的安全运行，又可以降低能源消耗。
2
The problems and the solution of blast furnace tuyere in the casting are introduced. Measurements on lowering gasser and needle hole is analysed.
介绍了高炉风口在铸造中遇到的问题和解决方法，讨论了降低气孔、针孔的工艺措施。
3
Some works in adjusting raw material structure, lowering raw material cost, increasing and stabilizing blast furnace productivity, decreasing ironmaking energy consumption were summed up.