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CN102912066A 一种高炉护炉剂的生成与添加方法 无效 - 驳回

一种高炉护炉剂的生成与添加方法
摘要：
本发明涉及一种高炉护炉剂的生成与添加方法，包括：选取含钛精粉；烘干含钛精粉，得到水分含量小于1%的含钛精粉；对含钛精粉进行筛分，选取粒度小于149微米的部分；经筛分后，含钛精粉中粒度大于149微米部分的质量占总质量的百分比小于或等于3%；将含钛精粉与煤粉进行均匀混合，得到含钛精粉与煤粉的均匀混合料；其中，所述煤粉中粒度小于74微米部分的质量占总质量的百分比不少于70%；将含钛精粉与煤粉的均匀混合料喷射入高炉。
摘要（英）：

The invention relates to a method for producing and adding a blast furnace protection agent. The method comprises the steps of: selecting titaniferous concentrate; drying the titaniferous concentrate so as to obtain the titaniferous concentrate with the water content which is smaller than 1%; screening the titaniferous concentrate, and selecting the part with the granularity which is less than 149 micrometers; fine screening so as to realize that the mass of the titaniferous concentrate part with the granularity which is smaller than 149 micrometers is smaller or equals to 3% of the total mass; uniformly mixing the titaniferous concentrate with pulverized coal so as to obtain the uniform mixture of the titaniferous concentrate and the pulverized coal, wherein the mass of the pulverized coal part with the granularity which is smaller than 74 micrometers is not smaller than 70% of the total mass; and spraying the uniform mixture of the titaniferous concentrate and the pulverized coal into a blast furnace.

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