PROBLEM TO BE SOLVED: To promote the formation of a deposit on a sintering zone of a rotary kiln even at a high operation temperature by lining an inner surface of a rotary kiln for cement industry with a specific refractory material containing zirconium oxide. ;SOLUTION: The inner surface of a rotary kiln for cement industry is lined with a refractory material composed mainly of a magnesia spinel and comprising 10-50wt.% of a spinel clinker (MgO.Al2O3), 50-90wt.% of sintered magnesia and 0.5-4wt.% (based on 100wt.% of the sum of the spinel clinker and the sintered magnesia) of a zirconium oxide component for promoting the formation of deposit. The particle size of the zirconium oxide in the refractory material is preferably finer than 0.1mm.;COPYRIGHT: (C)1997,JPO
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机译：解决的问题：通过在水泥工业用回转窑的内表面衬以特定的含氧化锆的耐火材料，即使在较高的操作温度下，也能促进在回转窑的烧结区上形成沉积物。 ;解决方案：水泥工业回转窑的内表面衬有一种耐火材料，该材料主要由氧化镁尖晶石组成，并包含10-50wt。％的尖晶石熟料（MgO.Al 2 O < Sub> 3 ），50-90wt。％的烧结氧化镁和0.5-4wt。％（基于尖晶石熟料和烧结的氧化镁之和的100wt。％）的氧化锆组分以促进形成存款。耐火材料中氧化锆的粒径最好小于0.1mm。;版权：（C）1997，JPO
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