摘要
在分析水菱镁石化学矿物组成、显微结构和热分解特性的基础上,在900℃保温3 h煅烧水菱镁石制成轻烧MgO粉,按铁鳞和轻烧MgO粉的质量分数分别为8%和92%配料,经球磨、液压成型、1 600℃3 h煅烧后,制备了MgO-CaO-Fe2O3砂,检验了合成MgO-CaO-Fe2O3砂的各项理化性能,并与YB/T 101—2005《电炉炉底用MgO-CaO-Fe2O3系合成料》中DHL-81牌号合成料的性能进行了对比。结果表明:利用水菱镁石制备的MgO-CaO-Fe2O3砂的各项性能指标都达到DHL-81牌号MgO-CaO-Fe2O3合成砂的要求。
Based on the analysis on mineral composition,microstructure and thermal decomposition charac- teristics of hydromagnesite, hydromagnesite was calcined at 900 ℃ for 3 h to prepare light burnt MgO pow-der. MgO-CaO-Fe203 clinker was synthesized by mixing 92% light burnt MgO powder and 8% iron scale, ball milling,pressing at the hydraulic press,calcining at 1 600 ℃ for 3 h. Chemical compositions and physi-cal properties of synthesized MgO-CaO-Fe2O3 clinker were determined,and compared with those of DHL-81 materials specified in YB/T 101-2005 MgO-CaO-Fe2O3 synthetic materials for electrical furnace bot-tom. It is found that the properties of synthetic MgO-CaO-Fe2O3 clinker from hydromagnesite meet the re-quirements in YB/T 101-2005.
出处
《耐火材料》
CAS
北大核心
2013年第5期377-379,共3页
Refractories
关键词
水菱镁石
MgO-CaO-Fe2O3砂
电炉底捣打料
hydromagnesite
magnesia-calcia-ferric oxide clinker
ramming mix for electrical furnacebottom
