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。

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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。

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Some works in adjusting raw material structure, lowering raw material cost, increasing and stabilizing blast furnace productivity, decreasing ironmaking energy consumption were summed up.

对宝钢在调整原燃料结构、降低原燃料成本、提高和稳定高炉产能、降低炼铁能耗等方面所做的工作进行了总结。

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