含铁镁白云石质合成砂的研制及其在不定形耐火材料中的应用

Development of magnesium iron dolomite sand and its application on monolithic refractories

含铁镁白云石质合成砂生产工艺简单,它在高温下主要有方镁石固溶体(MgOss)和游离氧化钙(fCaO)两种高熔点固相,具有MgO-CaO系材料的特点,综合性能优良,在干打料、喷补料、涂抹料和隔热浇注料等耐火炉料的应用中,具有很高的耐用性。

The production process of iron magnesium dolomite is simple. Iron magnesium dolomite has two high-melting-points solid phases—solid solution periclase（ MgOss） and free clacium oxide（ fCaO）,so it has the characteristics of MgO-CaO refractories. With excellent comprehensive performance,the iron magnesium dolomite syntheticsand has high durability in application of dry play material,gun-mix refractory,coating and insulation castable refractory furnace charge.