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High-thermal-shock-resistance rare earth composite high-strength heat storage refractory brick for hot blast stove and preparation method of refractory brick
The invention provides a high thermal shock resistance rare earth composite high-strength heat storage refractory brick for a hot blast stove and a preparation method thereof, and relates to the technical field of refractory bricks, the refractory brick comprises the following raw materials by weight: 15-25 parts of 5-3mm aggregate high bauxite clinker, 15-25 parts of 3-1mm high bauxite clinker, 10-25 parts of 1-0mm high bauxite clinker, 5-17 parts of 200 mesh high bauxite clinker fine powder, and 10-20 parts of secondary aluminum ash powder, the solid waste rare earth material powder accounts for 5-10 parts, the soft clay accounts for 0-4 parts, the thermal expansion volume stable fine powder accounts for 3-11 parts, and the binding slurry accounts for 3-5 parts. The preparation method comprises the following steps: weighing ingredients, carrying out wet ball milling, sintering and crushing, grading the raw materials, proportioning, mixing and stirring, carrying out compression molding, baking, and calcining to obtain a finished product. The prepared rare earth composite high-strength heat storage refractory brick with high thermal shock resistance is wide in raw material distribution and low in cost; the firing temperature in the preparation process is low, and energy is saved; the prepared product has the characteristics of high compression strength, good thermal shock resistance, high volume density, high heat storage rate, high refractoriness under load and the like.
本发明提供了一种热风炉用高抗热震性稀土复合高强蓄热耐火砖及其制备方法，涉及耐火砖技术领域，该耐火砖包括以下重量份的原料：5~3mm骨料高铝矾土熟料15~25份，3~1mm高铝矾土熟料15~25份，1~0mm高铝矾土熟料10~25份，200目高铝矾土熟料细粉5~17份，二次铝灰粉末10~20份，固废稀土料粉5~10份，软质粘土0~4份、热胀体积稳定细粉3~11份，结合浆料3~5份。其制备方法包括配料称重、湿法球磨、烧结破碎、原料选级、配料、混合搅拌、压制成型、烘制、煅烧制度、成品。本发明制备的高抗热震性稀土复合高强蓄热耐火砖，原料分布广、成本低；制备过程中烧成温度低，节约能源；所制备的产品具有耐压强度高、抗热震性好、体密度高、高蓄热率、荷软温度高等特性。
High-thermal-shock-resistance rare earth composite high-strength heat storage refractory brick for hot blast stove and preparation method of refractory brick
The invention provides a high thermal shock resistance rare earth composite high-strength heat storage refractory brick for a hot blast stove and a preparation method thereof, and relates to the technical field of refractory bricks, the refractory brick comprises the following raw materials by weight: 15-25 parts of 5-3mm aggregate high bauxite clinker, 15-25 parts of 3-1mm high bauxite clinker, 10-25 parts of 1-0mm high bauxite clinker, 5-17 parts of 200 mesh high bauxite clinker fine powder, and 10-20 parts of secondary aluminum ash powder, the solid waste rare earth material powder accounts for 5-10 parts, the soft clay accounts for 0-4 parts, the thermal expansion volume stable fine powder accounts for 3-11 parts, and the binding slurry accounts for 3-5 parts. The preparation method comprises the following steps: weighing ingredients, carrying out wet ball milling, sintering and crushing, grading the raw materials, proportioning, mixing and stirring, carrying out compression molding, baking, and calcining to obtain a finished product. The prepared rare earth composite high-strength heat storage refractory brick with high thermal shock resistance is wide in raw material distribution and low in cost; the firing temperature in the preparation process is low, and energy is saved; the prepared product has the characteristics of high compression strength, good thermal shock resistance, high volume density, high heat storage rate, high refractoriness under load and the like.
本发明提供了一种热风炉用高抗热震性稀土复合高强蓄热耐火砖及其制备方法，涉及耐火砖技术领域，该耐火砖包括以下重量份的原料：5~3mm骨料高铝矾土熟料15~25份，3~1mm高铝矾土熟料15~25份，1~0mm高铝矾土熟料10~25份，200目高铝矾土熟料细粉5~17份，二次铝灰粉末10~20份，固废稀土料粉5~10份，软质粘土0~4份、热胀体积稳定细粉3~11份，结合浆料3~5份。其制备方法包括配料称重、湿法球磨、烧结破碎、原料选级、配料、混合搅拌、压制成型、烘制、煅烧制度、成品。本发明制备的高抗热震性稀土复合高强蓄热耐火砖，原料分布广、成本低；制备过程中烧成温度低，节约能源；所制备的产品具有耐压强度高、抗热震性好、体密度高、高蓄热率、荷软温度高等特性。
High-thermal-shock-resistance rare earth composite high-strength heat storage refractory brick for hot blast stove and preparation method of refractory brick
一种热风炉用高抗热震性稀土复合高强蓄热耐火砖及其制备方法
WANG JIPING (author) / CAO JIANWEI (author) / LIU YONGHONG (author) / SU RIGALA (author) / ZHANG WEI (author) / CHEN LIBING (author) / WU DANDAN (author) / PAN LU (author) / DING RENTING (author) / LIU SIYUAN (author)
2024-11-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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