2015年6月2日星期二

Production technology introduction of high alumina brick

High alumina brick and clay brick of the same way of molding production. The process of crushing, mixing, molding, drying, sintering, and testing, packaging, etc.. Production practice proved that the high Al clinker in front of the broken strictly chosen grading, low temperaturerefractory blockunder the compressive stress bear better but high temperature slightly lower so kiln in piling up less than 1 meter, and siliceous brick can be up to 1.7 meters. There are just some differences in process parameters… And classification of storage using bauxite and clay together with fine grinding method can improve the quality of products.
Raw materials and technology: mineral mainly consists of Mo mullite and corundum phase and blast furnace with corundum mullite brick using artificial electric melting or sintering corundum and Mo mullite raw materials as the main raw material, through high pressure shaping and high temperature sintering, mineral mainly consists of mullite. Features: the products have apparent porosity rate is low; load softening point, high creep resistance and chemical corrosion resistance excellent characteristics. Features: the product has the appearance of pure white, precise size, withrefractory brickexcellent physical properties and chemical erosion resistance of high temperature. Uses: mainly used for blast furnace bottom and hearth, is one of the advanced large blast furnace and ceramic cup material.
High alumina brick and clinker clay brick production process is similar differences. Uses: large blast furnace with advanced ceramic cup “one of the materials and hot blast stove industrial furnace in high-grade refractory material can be used. Raw materials and technology: blast furnace with mullite brick using artificial electric melting or sintering Mo mullite raw materials as the main raw material, through high pressure shaping and high temperature sintering is ingredients in a higher proportion of clinker can be as high as 90% ~ 9% clinker before breaking for classification is chosen, screened in addition to iron firing temperature is higher, such as high alumina brick tunnel kiln firing average 1500 ~ 1600 DEG C.

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