CaO and SiO 2 in slag adhere on inside wall of sleeve bricks, diffuse into sleeve bricks, and react with MgO and Al 2O 3 so that a large amount of continuous liquid phase is formed. And so, sleeve bricks are corroded rapidly.

• 渣中的CaO和SiO2 粘附于中、上套砖内壁 ,并向套砖内部扩散 ,然后与套砖中的MgO、Al2 O3反应形成连续液相 ,导致了套砖的损耗加快。