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Preparation process of light refractory brick for kiln
The invention relates to the technical field of refractory bricks, in particular to a preparation process of a light refractory brick for a kiln, which comprises the following steps: mixing an additive solution with a foam stabilizer accounting for 60-80% of the mass of components, adding kyanite, anorthite raw materials, magnesite, alumina fibers and alumina particles, and mixing; and sequentially adding the white cement, the foaming agent and the foam stabilizer with the mass being equal to that of the rest components, intensely stirring for 7-8 minutes, pouring, drying and firing to obtain the light refractory brick. According to the invention, anorthite with the characteristics of low density, low thermal expansion coefficient, low thermal conductivity, high specific strength, good anti-stripping performance and the like, mullite with the use temperature of more than 1700 DEG C, good thermal shock resistance and long service life, and spinel with the characteristics of low thermal expansion coefficient, low thermal conductivity, good thermal shock resistance and the like are used as a composite crystal phase of the refractory brick; the prepared refractory brick has the comprehensive performance characteristics of high temperature resistance, low heat conductivity, high strength and the like.
本发明涉及耐火砖技术领域，具体为一种窑炉用轻质耐火砖的制备工艺，由以下工艺制得：将添加剂溶液与60%～80%组分质量的稳泡剂混合，加入蓝晶石、钙长石原料、菱镁矿、氧化铝纤维、氧化铝颗粒混合；依次加入白水泥、发泡剂、剩余组分质量的稳泡剂，强力搅拌7～8min，浇注，干燥，烧制，得到轻质耐火砖。本发明通过具有密度小、热膨胀系数低、热导率低、比强度高、抗剥落性能良好等特点的钙长石，使用温度可达1700℃以上，抗热震性能好，寿命长的莫来石，热膨胀系数低，热导率低，抗热震稳定性好等特点的尖晶石作为耐火砖的复合晶相，能够使得所制耐火砖同时具有耐高温、低导热、高强度等综合性能特点。
Preparation process of light refractory brick for kiln
The invention relates to the technical field of refractory bricks, in particular to a preparation process of a light refractory brick for a kiln, which comprises the following steps: mixing an additive solution with a foam stabilizer accounting for 60-80% of the mass of components, adding kyanite, anorthite raw materials, magnesite, alumina fibers and alumina particles, and mixing; and sequentially adding the white cement, the foaming agent and the foam stabilizer with the mass being equal to that of the rest components, intensely stirring for 7-8 minutes, pouring, drying and firing to obtain the light refractory brick. According to the invention, anorthite with the characteristics of low density, low thermal expansion coefficient, low thermal conductivity, high specific strength, good anti-stripping performance and the like, mullite with the use temperature of more than 1700 DEG C, good thermal shock resistance and long service life, and spinel with the characteristics of low thermal expansion coefficient, low thermal conductivity, good thermal shock resistance and the like are used as a composite crystal phase of the refractory brick; the prepared refractory brick has the comprehensive performance characteristics of high temperature resistance, low heat conductivity, high strength and the like.
本发明涉及耐火砖技术领域，具体为一种窑炉用轻质耐火砖的制备工艺，由以下工艺制得：将添加剂溶液与60%～80%组分质量的稳泡剂混合，加入蓝晶石、钙长石原料、菱镁矿、氧化铝纤维、氧化铝颗粒混合；依次加入白水泥、发泡剂、剩余组分质量的稳泡剂，强力搅拌7～8min，浇注，干燥，烧制，得到轻质耐火砖。本发明通过具有密度小、热膨胀系数低、热导率低、比强度高、抗剥落性能良好等特点的钙长石，使用温度可达1700℃以上，抗热震性能好，寿命长的莫来石，热膨胀系数低，热导率低，抗热震稳定性好等特点的尖晶石作为耐火砖的复合晶相，能够使得所制耐火砖同时具有耐高温、低导热、高强度等综合性能特点。
Preparation process of light refractory brick for kiln
一种窑炉用轻质耐火砖的制备工艺
ZHU WEIGUO (author) / CUI HENGYANG (author) / YANG GUANG (author) / ZHU JUN (author) / ZHU HUI (author)
2023-06-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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