镁尖晶石质耐火砖虽已用于水泥回转窑,但由于它与熟料粘附性差,形成的结皮层薄,易脱落而受到损害,而且也易随温度变化而剥落,热负荷也大。近来,国外一公司针对这些缺陷,发明了一种结皮性好的高抗剥落无铬镁铝耐火砖。据介绍,该耐火砖是在镁铝尖晶石粉末和氧化镁粉配成的配合料? Magnesium spinel refractory brick has been used in cement rotary kiln, but because of its poor adhesion with clinker, forming a thin crust, easy to fall off and damaged, but also easy to peel off with temperature changes, the heat load is also large . Recently, a foreign company for these shortcomings, invented a crust of good high anti-spalling chromium-free magnesium-alumina refractory bricks. According to reports, the refractory bricks in magnesium aluminum spinel powder and magnesium oxide dubbed the compound?