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对半干法烧结脱硫的理化特性进行了分析,并且利用H2O2氧化半干法烧结脱硫灰中的CaSO3,以提升半干法烧结脱硫灰的建材化性能,进而解决其大量占用大片土地和扬尘等二次污染的问题。试验结果表明,在常温下4%H2O2对CaSO3的氧化效率高达74%,可以有效地将脱硫灰中的CaSO3氧化,同时利用烧结脱硫灰开发的胶凝材料的抗压强度试验结果也与氧化试验结果较为吻合。
The physical and chemical characteristics of the semi-dry sintering desulfurization were analyzed, and the semi-dry sintering desulfurization ash CaSO3 was used to enhance the building materials properties of the semi-dry sintering desulfurization ash, so as to solve the problem that a large amount of occupied land and dust Secondary pollution problems. The results show that the oxidation efficiency of CaSO3 by 4% H2O2 at normal temperature is as high as 74%, which can effectively oxidize CaSO3 in the desulfurized ash. Meanwhile, the compressive strength test results of the cementitious material developed by sintering desulfurization ash are also the same as those of the oxidation test The result is more consistent.