焦炉蓄热室黏土格子砖发泡变形的原因及机制分析  

Analysis on foaming and deformation reasons and mechanism of clay checker bricks in coke oven regenerators

作　　者：徐国涛 张彦文 杨帆 冯强 王大春 刘黎 张洪雷 Xu Guotao;Zhang Yanwen;Yang Fan;Feng Qiang;Wang Dachun;Liu Li;Zhang Honglei

机构地区：[1]宝钢股份公司中央研究院,湖北武汉430080 [2]武汉平煤武钢联合焦化有限公司,湖北武汉430080

出　　处：《耐火材料》2020年第1期61-65,69,共6页Refractories

摘　　要：焦炉蓄热室黏土格子砖长期使用过程中与含铁氧化物、K 2O等杂质反应,出现发泡、软熔变形现象。上层格子砖在使用中被焦油浸泡,使得其易于黏结煤气中的粉尘导致与黏土砖的反应。黏土砖发泡除与黏土格子砖的杂质含量和性能有关外,也与煤气中的粉尘有关。空气侧的焦炉蓄热室黏土格子砖长期使用后相对含Fe、K 2O杂质量少。焦炉蓄热室长寿使用需要关注所用煤气的质量及格子砖的焦油粘附问题。During the long-term service of coke oven regenerators,clay checker bricks react with impurities such as iron oxides and K 2O resulting in foaming,softening-melting and deformation.The upper layer checker bricks soaked in tar during operation are prone to absorbing and reacting with the dust in the coal gas.The foaming is not only related to the impurity contents and properties of the clay checker bricks,but also to the dust in the coal gas.The clay checker bricks on the air side of the coke oven regenerators have relatively low Fe and K 2O contents after long-term service.The gas quality and tar adherence to checker bricks shall be paid attention to for long-term service coke oven regenerators.

关 键 词：焦炉 蓄热室 黏土格子砖 发泡 

分 类 号：TQ175.73[化学工程—硅酸盐工业]