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Mullite sintering machine grate bar and preparation method thereof
The invention discloses a mullite sintering machine grate bar and a preparation method thereof, and belongs to the technical field of refractory materials. The mullite sintering machine grate bar is prepared from the following raw materials in percentage by mass: 85 to 90 percent of mullite, 2 to 8 percent of industrial aluminum oxide, 2 to 8 percent of clay powder, 1 to 3 percent of organic binding agent, 0.1 to 0.5 percent of dispersing agent and 5 to 10 percent of additional water. According to the sintering machine grate bar prepared by the invention, the mullite phase content is more than 90%, the apparent porosity is less than 19%, the volume density is more than 2.5 g/cm < 3 >, the refractoriness under load is more than 1650 DEG C, and the compression strength at normal temperature is more than 100 MPa. The sintering machine grate bar made of the mullite material is developed, the mullite material is used for replacing a metal material, the advantages of abrasion resistance, high strength, high temperature resistance, good thermal shock resistance and non-oxidation of the mullite material are exerted, the sintering machine grate bar can better adapt to the working condition of a sintering machine compared with a metal grate bar, and the service life of the grate bar can be prolonged to 9-18 months.
本发明公开一种莫来石烧结机箅条及其制备方法，属于耐火材料技术领域。所述莫来石烧结机箅条，以质量百分比计，原料组成为：莫来石85~90%，工业氧化铝2~8%，粘土粉2~8%，有机结合剂1~3%，分散剂0.1~0.5%，外加水5‑10%。本发明制得的烧结机箅条，其莫来石相含量在90%以上，显气孔率小于19%，体积密度大于2.5g/cm3，荷重软化温度大于1650℃，常温耐压强度大于100MPa。本发明开发了莫来石材质的烧结机箅条，以莫来石代替金属材质，发挥了莫来石材料耐磨、强度高、耐高温、热震稳定性好、不氧化的优点，比金属箅条更能适应烧结机工况，可以将箅条的寿命提高至9~18个月。
Mullite sintering machine grate bar and preparation method thereof
The invention discloses a mullite sintering machine grate bar and a preparation method thereof, and belongs to the technical field of refractory materials. The mullite sintering machine grate bar is prepared from the following raw materials in percentage by mass: 85 to 90 percent of mullite, 2 to 8 percent of industrial aluminum oxide, 2 to 8 percent of clay powder, 1 to 3 percent of organic binding agent, 0.1 to 0.5 percent of dispersing agent and 5 to 10 percent of additional water. According to the sintering machine grate bar prepared by the invention, the mullite phase content is more than 90%, the apparent porosity is less than 19%, the volume density is more than 2.5 g/cm < 3 >, the refractoriness under load is more than 1650 DEG C, and the compression strength at normal temperature is more than 100 MPa. The sintering machine grate bar made of the mullite material is developed, the mullite material is used for replacing a metal material, the advantages of abrasion resistance, high strength, high temperature resistance, good thermal shock resistance and non-oxidation of the mullite material are exerted, the sintering machine grate bar can better adapt to the working condition of a sintering machine compared with a metal grate bar, and the service life of the grate bar can be prolonged to 9-18 months.
本发明公开一种莫来石烧结机箅条及其制备方法，属于耐火材料技术领域。所述莫来石烧结机箅条，以质量百分比计，原料组成为：莫来石85~90%，工业氧化铝2~8%，粘土粉2~8%，有机结合剂1~3%，分散剂0.1~0.5%，外加水5‑10%。本发明制得的烧结机箅条，其莫来石相含量在90%以上，显气孔率小于19%，体积密度大于2.5g/cm3，荷重软化温度大于1650℃，常温耐压强度大于100MPa。本发明开发了莫来石材质的烧结机箅条，以莫来石代替金属材质，发挥了莫来石材料耐磨、强度高、耐高温、热震稳定性好、不氧化的优点，比金属箅条更能适应烧结机工况，可以将箅条的寿命提高至9~18个月。
Mullite sintering machine grate bar and preparation method thereof
一种莫来石烧结机箅条及其制备方法
BAI ZHOUYI (author) / ZHANG XINSHENG (author) / BAI WEIFENG (author) / FENG ZHOUYANG (author) / BAI CHUNLI (author) / BAI QIYU (author)
2022-08-16
Patent
Electronic Resource
Chinese
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