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Preparation method of high-temperature sillimanite pool-bottom large brick for large float glass melting furnace
The invention belongs to the technical field of preparation of refractory materials, and particularly relates to a preparation method of a high-temperature sillimanite pool-bottom large brick for a large float glass melting furnace. The preparation method comprises the following steps: grading and selecting the sillimanite, mixing raw materials, conducting pouring to prepare a blank, performing exhausting, carrying out demolding and drying, and conducting calcining at high temperature. The high-temperature sillimanite pool-bottom large brick prepared by the method provided by the invention uses a natural mineral sillimanite as a main body material, has a compact fine grain structure, is not easy to generate bubbles in a glass production process, completes secondary mullitization in a high-temperature calcination process as long as about 28 days to form compact crystals, is free of crystal expansion in an actual use process,and maintains good high-temperature volume stability; and the high-temperature sillimanite pool-bottom large brick is used at the bottom of the large float glass furnace, so the overall stability of a furnace body is ensured, enough high bearing force is ensured, the overall heat efficiency of the melting furnace is improved, and fuel cost is saved.
本发明属于耐火材料的制备技术领域,具体的涉及一种大型浮法玻璃熔窑高温硅线石池底大砖的制备方法。所述的制备方法包括硅线石的分级精选、原料混合、浇筑制坯、排气、脱模干燥和高温煅烧制备而成。采用本发明所述的方法制备得到的高温硅线石池底大砖,使用天然矿物硅线石为主体材料,具有致密的细粒结构,不易在玻璃生产过程中产生气泡,在长达28天左右的高温煅烧的过程中完成了二次莫来石化形成致密结晶,在实际使用过程中不会产生晶体膨胀,保持了良好的高温体积稳定性,在大型浮法玻璃窑底使用,确保了窑体的整体稳定性,在确保有足够高承重力的同时,提高熔窑整体热效率,节约燃料成本。
Preparation method of high-temperature sillimanite pool-bottom large brick for large float glass melting furnace
The invention belongs to the technical field of preparation of refractory materials, and particularly relates to a preparation method of a high-temperature sillimanite pool-bottom large brick for a large float glass melting furnace. The preparation method comprises the following steps: grading and selecting the sillimanite, mixing raw materials, conducting pouring to prepare a blank, performing exhausting, carrying out demolding and drying, and conducting calcining at high temperature. The high-temperature sillimanite pool-bottom large brick prepared by the method provided by the invention uses a natural mineral sillimanite as a main body material, has a compact fine grain structure, is not easy to generate bubbles in a glass production process, completes secondary mullitization in a high-temperature calcination process as long as about 28 days to form compact crystals, is free of crystal expansion in an actual use process,and maintains good high-temperature volume stability; and the high-temperature sillimanite pool-bottom large brick is used at the bottom of the large float glass furnace, so the overall stability of a furnace body is ensured, enough high bearing force is ensured, the overall heat efficiency of the melting furnace is improved, and fuel cost is saved.
本发明属于耐火材料的制备技术领域,具体的涉及一种大型浮法玻璃熔窑高温硅线石池底大砖的制备方法。所述的制备方法包括硅线石的分级精选、原料混合、浇筑制坯、排气、脱模干燥和高温煅烧制备而成。采用本发明所述的方法制备得到的高温硅线石池底大砖,使用天然矿物硅线石为主体材料,具有致密的细粒结构,不易在玻璃生产过程中产生气泡,在长达28天左右的高温煅烧的过程中完成了二次莫来石化形成致密结晶,在实际使用过程中不会产生晶体膨胀,保持了良好的高温体积稳定性,在大型浮法玻璃窑底使用,确保了窑体的整体稳定性,在确保有足够高承重力的同时,提高熔窑整体热效率,节约燃料成本。
Preparation method of high-temperature sillimanite pool-bottom large brick for large float glass melting furnace
大型浮法玻璃熔窑高温硅线石池底大砖的制备方法
MA NAIFU (author) / TAN QIYU (author) / MA XIAODONG (author) / ZHAI SUOPENG (author) / WANG DEHONG (author) / ZHAI SUOCHUN (author) / WANG GUANGSHENG (author) / ZHANG TINGSHENG (author) / ZHANG ZONGJIAN (author)
2021-10-08
Patent
Electronic Resource
Chinese
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