Acidic dry ramming material and application thereof in preparation of refractory material for intermediate frequency furnace: Fid-Bau Portal

Acidic dry ramming material and application thereof in preparation of refractory material for intermediate frequency furnace

XU CHENGLI / XU XUEJUN / SUN HUI / CHEN ZHIQIANG

Abstract

The invention relates to the technical field of refractory materials, in particular to an acidic dry ramming material and application of the acidic dry ramming material to preparation of a refractory material for an intermediate frequency furnace. The raw material of the ramming material comprises 3mm; the grain size of the microcrystalline natural silica is smaller than or equal to 8 mm, and 0.5 mlt; the grain size of the microcrystalline natural silica is less than or equal to 3mm, and the grain size is 30- Microcrystalline natural silica with a particle size of less than or equal to 70 meshes; 30 lt; the particle size of the natural acid-washed silica is less than or equal to 70 meshes; the particle size of fused quartz is 325 meshes, and the particle size is 3 mmlt; the particle size of the fused quartz is less than or equal to 5mm, and 1mlt; fused quartz with a particle size less than or equal to 3mm and fused quartz with a particle size less than or equal to 1mm; boron oxide with a particle size of 200 meshes; the particle size of the potassium silicate is 200 meshes. The ramming material obtained through the raw material formula has good thermal shock resistance stability, is not prone to cracking, and is simple in raw material component and low in cost.

本发明涉及耐火材料的技术领域，具体涉及一种酸性干式捣打料及其制备中频炉用耐火材料的应用。捣打料原料包括3mm<粒径≤8mm的微晶天然硅石，0.5mm<粒径≤3mm的微晶天然硅石，30目<粒径≤70目的微晶天然硅石；30目<粒径≤70目的天然酸洗硅石，粒径为270目的天然酸洗硅石；粒径为325目的熔融石英，3mm<粒径≤5mm的熔融石英，1mm<粒径≤3mm的熔融石英，粒径≤1mm的熔融石英；粒径为200目的氧化硼；粒径为200目硅酸钾。通过本发明的原料配方得到的捣打料具有良好的抗热震稳定性，不易开裂，原料成分简单、成本较低。

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