Ceramic fiber module is to simplify and speed up the furnace construction, improve the integrity of the lining and launched a new refractory lining products. Ceramic fiber module color white, regular size, can be directly fixed to the industrial furnace shell steel plate anchor, with good fire insulation, improve the integrity of the furnace refractory insulation, and promote the masonry furnace technology Progress classification temperature 1050-1400 ℃.
First, the ceramic fiber module product features
Excellent chemical stability, excellent thermal stability, excellent elasticity, the ceramic fiber module is in the pre-pressed state. After the lining of the lining is completed, the expansion of the ceramic fiber module makes the lining of the furnace seamless and compensates for the shrinkage of the fiber lining to improve Fiber lining insulation performance, good overall performance; excellent thermal stability and thermal shock resistance; ceramic fiber module installed quickly, and the anchor is set in the lining of cold, can reduce the material requirements of the anchor.
Second, the typical application of ceramic fiber module
In the petrochemical industry, the lining of the furnace lining is adiabatic; the lining of the metallurgical industry furnace is adiabatic; the lining of the furnace lining of the building material industry such as ceramics and glass is adiabatic; the lining of the heat treatment furnace of the heat treatment industry is adiabatic; lining of other industrial furnaces. With the national energy-saving emission reduction plan, the transformation of burned brick tunnel kiln is imminent. The ceramic fiber module is greatly praised for its excellent thermal insulation performance in burning brick tunnel kiln ceiling.
Third, the ceramic fiber module by the molding method of classification
According to different molding methods, ceramic fiber module can be divided into folding block, slicing block, Palo block, vacuum forming block. As the polycrystalline mullite fiber production methods and crystal structure of different, shorter fiber length and poor flexibility. Can not be made into large modules, resulting in large-scale use of polycrystalline fibers. Now more use of polycrystalline fibers in the castable or refractory furnace wall, the roof paste the inner surface, the use of polycrystalline fiber patch can effectively reduce the temperature of the outer wall of the furnace wall while reducing heat storage losses.
At present, most domestic manufacturers of ceramic fibers use the form of a folding block, which is folded using acupuncture blanket. The molding machine uses mechanical equipment to pre-press the module. Due to the method of making the folding block, the unevenness of the surface affects the effect of the anti-erosion coating spray. The slicing block is an improvement on this basis. The manufacturing method is the same as that of the folding block, except that the fiber blanket is folded to cut the surface of the module after forming. At present, some manufacturers can produce such modules.
Palo block is a new module, which uses a molding method and the two modules is completely different, the molded fiber is not directional module, so the adiabatic effect is better than the first two modules. Roof fiber module density should choose 230kg / m3, side wall fiber module density should choose 220kg / m3.
Abroad, while increasing ceramic fiber production, pay attention to research and development of new varieties, in addition to the typical ceramic fiber products such as 1000, 1260, 1400, 1600 and mixed fibers, in recent years, the chemical composition of the melt added ZrO2 , Cr2O3 and other ingredients, so that the highest temperature ceramic fiber products to 1300 ℃. In addition, some manufacturers are still adding CaO, MgO and other ingredients in the chemical composition of the melt, successfully developed a variety of new products. Such as soluble ceramic fiber containing 62% ~ 75% Al2O3 high-strength ceramic fibers and high temperature ceramic textile fibers. Therefore, the current application of ceramic fibers in foreign countries has brought a very significant economic benefits, leading to the growing scope of the application of ceramic fibers, ceramic fiber production in some major industrialized countries continue to maintain the momentum of continued growth, especially glassy silicon Acrylic fiber is the most rapid development. At the same time, with the continuous expansion of the scope of application of ceramic fibers, resulting in a significant change in the production structure of ceramic fiber products. For example, the production of ceramic fiber blankets (including fiber blocks) has dropped from 70% of the production of ceramic fibers in the past to 45%; the deep processing of ceramic fibers (such as fiber ropes and fabrics), fiber paper, fiber castables, Spread material and other non-staple fiber material production increased significantly, close to 15% of ceramic fiber production. The development, production and application of new varieties of ceramic fibers have greatly promoted the application of ceramic fibers and the development of construction methods.