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对富含碳酸钙的石灰石、方解石、冰洲石的矿石及煅烧后的宏观微观状态和热物性进行了差热、X射线衍射和扫描电镜分析等试验分析,研究了它们的结晶程度、粉化程度和煅烧后CaO晶粒大小和晶格畸变等因素,得出:矿石晶粒度越大煅烧后越容易碎裂;方解石、冰洲石的分解温度都与石灰石相近,可以如石灰石一样用于转炉造渣,但分解时耗热量略有不同;4种矿石在马弗炉内以10℃/min的速率升温至820℃立即取出,CaO的晶粒尺寸约为61~85 nm,相对于石灰石,晶粒较大的方解石、冰洲石煅烧所得CaO晶粒更小,晶格畸变更大,具有更高的活性,更有利于炼钢化渣。
The results of differential thermal analysis, X-ray diffraction and scanning electron microscopy analysis of the macroscopic microscopic and thermal properties of calcium carbonate-rich limestone, calcite and ores, and their calcinations show that their crystallinity, Degree and calcined CaO grain size and lattice distortion and other factors, drawn: the larger the grain size of calcined ore more easily broken; calcite, ice stone decomposition temperature is similar to limestone, can be used like limestone Converter slag, but the decomposition of heat consumption is slightly different; 4 kinds of ore in the muffle furnace at a rate of 10 ℃ / min to 820 ℃ immediately removed, CaO grain size of about 61 ~ 85 nm, relative to the limestone , Larger grains of calcite, calcined calcite ice grains smaller, lattice distortion greater, with higher activity, more conducive to steel slag.