熔渣与耐火材料高温润湿研究进展

Research Progress on High-Temperature Wetting Behavior Between Slag and Refractory

熔渣的侵蚀是导致耐火材料损毁的主要原因之一,主要表现形式是耐火材料在渣中的熔解及熔渣向耐火材料中的渗透,这2个方面都与熔渣在高温下与耐火材料的润湿性有关,耐火材料的高温润湿性能可以通过熔渣在其表面的张力、黏附功和铺展系数等参数加以表征。改变耐火材料的组成及粗糙度等可以降低熔渣在耐火材料表面的润湿,进而提高耐火材料的服役寿命。本文从熔渣组成、耐火材料组成及表面微观效应等方面综述了耐火材料表面熔渣高温润湿性的影响因素,同时也展望了该领域未来研究发展方向。

The melting of refractory in slag and the penetration of slag into refractory are the main reasons for the damage of refractory.These two aspects are related to the wettability between slag and refractory at a high temperature,and the wettability can be evaluated by the surface tension,adhesion work and spreading coefficient of slag on the refractory surface.The wettability of slag and refractory can be inhibited by changing the composition and roughness of the refractory,thus resulting in the improved service life of the refractory.This review represented the factors affecting the high-temperature wettability between refractories and slag based on the aspects of slag composition,refractory composition and surface microstructure effect.In addition,the future research direction in this field was also prospected.