介绍了在钢水精炼过程中，添加一定量的活性石灰和萤石，提高精炼钢水顶渣的碱度，降低熔渣的熔点，改善熔渣的流动性。
In the liquid steel refining process the basicity of top slag can be increased, the melting point of the slag decreased and the fluidity improved by adding certain amount of active lime.
石灰的熔化速度较缓慢(石灰活性度低时更差)，炉渣碱度的提高需要一个较长的过程，在低碱度阶段炉渣对炉衬的侵蚀较严重。
Lime melting speed is relatively slow (lime activated degree low worse), slag basicity improve need a longer process in lower alkalinity stage of furnace slag serious erosion.
石灰的熔化速度较缓慢(石灰活性度低时更差)，炉渣碱度的提高需要一个较长的过程，在低碱度阶段炉渣对炉衬的侵蚀较严重。
Lime melting speed is relatively slow (lime activated degree low worse), slag basicity improve need a longer process in lower alkalinity stage of furnace slag serious erosion.
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