一、前言加热炉炉底水冷管带走的热量占炉子供入热量,在无包扎时,约为全炉供热量的25～30％,一般包扎时,为15～20％。轧板厂加热炉炉底水冷管一直采用异型粘土挂砖包扎,此种结构寿命低,一般使用半年就大部掉落,绝热效果差,施工工期长,劳动强度大,直按影响到炉子的能耗,烧钢的质量和产量。因此,寻求更合适的包扎材料和包扎结构是降低炉子能耗、提高产量、改善烧钢质量的重要措施之一。由于可塑料与耐火砖相比具有可塑性好,整体性强、耐剥落好、生产工艺简便、易于机械化施工等优点,因此近年来在国内外迅速发展起来。热轧带钢厂步进式加热炉就是全可塑料的。国内许多工厂在加热炉、均热炉及其它炉窑上广泛采用可塑料,尤其是在加热炉炉底水冷管包扎方面,许多中、小轧钢厂走在了前面。天津中板厂加热炉采 First, the foreword Furnace bottom water cooling pipe take away the heat of the furnace to supply heat, without bandaging, about 25 ~ 30% of the furnace heat, the general bandage, 15 ~ 20%. Rolling Mill furnace bottom water cooling pipe has been using special-shaped clay hanging brick bandage, this structure has a low life expectancy, the general use of most of the six months to drop, poor insulation, construction period is long, labor-intensive, direct impact on the furnace Energy consumption, quality and yield of steel burning. Therefore, finding more suitable dressing materials and dressing structure is one of the important measures to reduce the energy consumption of the stove, increase the output and improve the quality of the steelmaking. Compared with refractory bricks, plastic has the advantages of good plasticity, strong integrity, good spalling resistance, simple and convenient production process, and easy mechanized construction. Therefore, it has rapidly developed at home and abroad in recent years. Hot strip mill stepping furnace is all plastic. Many domestic factories in the furnace, soaking furnaces and other furnaces widely used plastic, especially in the furnace bottom water cooling pipe bandage, many small and medium rolling mill in front. Tianjin plate factory heating furnace mining