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Thermal-shock-resistant ceramic brick and preparation method thereof
The invention discloses a thermal-shock-resistant ceramic brick and a preparation method thereof. The thermal-shock-resistant ceramic brick comprises, by weight, 15-17% of aluminum gangue, 4-6% of bluestone, 18-20% of clay, 4-6% of dolomite, 10-12% of fused quartz, 24-26% of sandstone and 17-19% of high-temperature sand. According to the thermal-shock-resistant ceramic brick, by reducing the use amount of quartz and bluestone and increasing the use amount of aluminum gangue, the content of silicon and calcium in the formula is reduced, the content of aluminum and magnesium in the formula is increased, the water absorption rate of a green body of the thermal-shock-resistant ceramic brick is reduced, and the sintering degree of the green body is increased; and the firing range of the thermal-shock-resistant ceramic brick is widened, so that the thermal-shock-resistant ceramic brick can keep a better firing effect in a wide-body kiln with larger section temperature difference. Crystal form conversion of the green body is reasonable in the firing process of the wide-body kiln with the large section temperature difference, so that the thermal shock resistance stability of the finished product is improved, and the problem that the thermal shock resistance of the brick finished product is reduced due to the large section temperature difference of the wide-body kiln is solved.
本发明公开了一种抗热震性陶质砖及其制备方法，抗热震性陶质砖包括以下重量百分比的原料：15～17%铝矸石、4～6%青石、18～20%粘土、4～6%白云石、10～12%熔融石英、24～26%砂岩和17～19%高温砂。所述抗热震性陶质砖通过减少石英和青石的用量，提高铝矸用量，以减少配方中硅元素和钙元素的含量，增加配方中铝元素和镁元素的含量，抗热震性陶质砖的坯体的吸水率下降，提高坯体烧结度；还增宽抗热震性陶质砖的烧成范围，使抗热震性陶质砖能够在断面温差较大的宽体窑炉中保持较好的烧成效果。坯体在断面温差较大的宽体窑炉的烧制过程中晶型转换合理，从而改善成品抗热震的稳定性，以解决因宽体窑炉断面温差较大而导致砖成品的抗热震性能降低的问题。
Thermal-shock-resistant ceramic brick and preparation method thereof
The invention discloses a thermal-shock-resistant ceramic brick and a preparation method thereof. The thermal-shock-resistant ceramic brick comprises, by weight, 15-17% of aluminum gangue, 4-6% of bluestone, 18-20% of clay, 4-6% of dolomite, 10-12% of fused quartz, 24-26% of sandstone and 17-19% of high-temperature sand. According to the thermal-shock-resistant ceramic brick, by reducing the use amount of quartz and bluestone and increasing the use amount of aluminum gangue, the content of silicon and calcium in the formula is reduced, the content of aluminum and magnesium in the formula is increased, the water absorption rate of a green body of the thermal-shock-resistant ceramic brick is reduced, and the sintering degree of the green body is increased; and the firing range of the thermal-shock-resistant ceramic brick is widened, so that the thermal-shock-resistant ceramic brick can keep a better firing effect in a wide-body kiln with larger section temperature difference. Crystal form conversion of the green body is reasonable in the firing process of the wide-body kiln with the large section temperature difference, so that the thermal shock resistance stability of the finished product is improved, and the problem that the thermal shock resistance of the brick finished product is reduced due to the large section temperature difference of the wide-body kiln is solved.
本发明公开了一种抗热震性陶质砖及其制备方法，抗热震性陶质砖包括以下重量百分比的原料：15～17%铝矸石、4～6%青石、18～20%粘土、4～6%白云石、10～12%熔融石英、24～26%砂岩和17～19%高温砂。所述抗热震性陶质砖通过减少石英和青石的用量，提高铝矸用量，以减少配方中硅元素和钙元素的含量，增加配方中铝元素和镁元素的含量，抗热震性陶质砖的坯体的吸水率下降，提高坯体烧结度；还增宽抗热震性陶质砖的烧成范围，使抗热震性陶质砖能够在断面温差较大的宽体窑炉中保持较好的烧成效果。坯体在断面温差较大的宽体窑炉的烧制过程中晶型转换合理，从而改善成品抗热震的稳定性，以解决因宽体窑炉断面温差较大而导致砖成品的抗热震性能降低的问题。
Thermal-shock-resistant ceramic brick and preparation method thereof
一种抗热震性陶质砖及其制备方法
GAO XINGBIN (author) / LUO TAO (author) / ZHANG HUANLE (author) / YIN SHAOZE (author)
2021-06-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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