将45～63 μm和90～150 μm的方解石矿物在空气与氧/燃料条件下进行沉降炉实验,研究了燃烧气氛、颗粒粒径以及SO2对方解石转化行为的影响.研究表明:方解石颗粒在氧/燃料燃烧条件下发生破碎,气氛中CO2浓度越高,方解石的破碎越弱;方解石样品粒径越大,破碎越明显.气氛中CO2的浓度越高,CaCO3的分解越弱,90～150 μm的方解石分解程度大于45～63 μm的方解石.气氛中存在体积分数为0.3％的SO2时,氧/燃料燃烧条件下CaSO4的生成量大于空气燃烧气氛,SO2的存在促进CaCO3的转化.
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