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研究与生产实践证明，添加细磨石灰石粉生产０．５碱度竖炉球团，球团矿具有良好的冶金性能和常温强度，但应采取适宜的焙烧温度和操作制度。球团矿用于高炉生产，效果明显。
Research and production practice have proved that the addition of finely ground limestone powder to produce a 0.5-degree shaft furnace pellet has good metallurgical properties and room temperature strength, but the appropriate calcination temperature and operating system should be adopted. Pellets for blast furnace production, the effect is obvious.