酸激发高炉渣制备钙长石轻质耐火材料  

Anorthite Light Refractory Prepared from Acid Excitation Blast Furnace Slag

作　　者：熊心怡 武杏荣[1] 倪先鑫 申星梅[1] 曹发斌[1] XIONG Xin-yi;WU Xing-rong;NI Xian-xin;SHEN Xing-mei;CAO Fa-bin(Key Laboratory of Metallurgical Emission Reduction&Resources,Ministry of Education,Anhui University of Technology,Maanshan 243002,China)

机构地区：[1]安徽工业大学冶金减排与资源综合利用教育部重点实验室,安徽马鞍山243002

出　　处：《安徽化工》2023年第5期40-44,共5页Anhui Chemical Industry

基　　金：国家自然科学基金(51274006)。

摘　　要：以偏高岭土和高炉渣为主要原料,PVA为稳泡剂,十二烷基苯磺酸钠为发泡剂,采用酸基地聚物凝胶成型制备钙长石质轻质耐火材料,研究了固含量、高炉渣替换量及烧结温度对轻质耐火材料合成及性能的影响。结果表明:适宜的高炉渣替换量和烧结温度对耐火材料的晶相形成及力学性能有较大影响,固含量为35wt%,其中高炉渣替换量为40.76wt%,烧结温度为1 100℃时可获得性能较好的钙长石轻质耐火材料,其气孔率为75.18%,体积密度为0.68 g/cm^(3),导热系数为0.18 W/m·K,抗折强度为4.95 MPa。Using metakaolin and blast furnace slag as main raw materials,PVA as foaming agent and sodium dodecyl benzene sulfonate as foaming agent,calcium feldspar lightweight refractory was prepared by acid base polymer gel mold⁃ing.The effects of solid content,blast furnace slag content and sintering temperature on the synthesis and properties of lightweight refractory were studied.The results show that suitable blast furnace slag content and sintering temperature have great influence on the crystal phase formation and mechanical properties of refractory.When solid content is 35wt%,in which the blast furnace slag replacement level is 54.35wt%,and the sintering temperature is 1100℃,good performance of light calc feldspar refractory can be obtained:The porosity is 75.18%,the bulk density is 0.68 g/cm^(3),the thermal conductivity is 0.18 W/m∙K,and the bending strength is 4.95 MPa.

关 键 词：钙长石 轻质耐火材料 高炉渣 酸基地聚物凝胶 

分 类 号：TQ174.1[化学工程—陶瓷工业] X757[化学工程—硅酸盐工业]