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Steel ladle air brick and preparation method thereof
The invention discloses a steel ladle air brick and a preparation method thereof. The steel ladle air brick is prepared from the following raw materials: 50-70wt% of alum slag particles, 3-10wt% of sintered 90 aluminum-magnesium defect spinel fine particles and 3-8wt% of hot pressed sintered carbonitride fine particles which are taken as aggregates; 3-10 wt% of active alpha-Al2O3 micro powder, 1-3 wt% of hydrated alumina micro powder, 5-8 wt% of sintered 90 aluminum magnesium defect spinel micro powder, 0.5-1.5 wt% of pure alumina calcium cement and 5-10 wt% of carbonitride pretreated composite micro powder which are taken as matrixes; and 0.05-0.5 wt% of urea, 0.5-1.0 wt% of alloy powder, 0.02-0.2 wt% of a thermal shock stabilizer and 3-5 wt% of a liquid water reducer which are taken as additives. The steel ladle air brick has the beneficial effect that the prepared air brick has the characteristics of high strength, high thermal shock resistance, molten steel scouring resistance, steel slag permeation resistance, excellent erosion resistance, burning loss resistance, no need for backwashing and long service life.
本发明公开了一种钢包透气砖及其制备方法，钢包透气砖的制备原料如下：50～70wt％的矾渣颗粒、以3～10wt％的烧结90铝镁缺陷尖晶石细颗粒、3～8wt％的热压烧结碳氮化物细颗粒为骨料，以3～10wt％的活性α‑Al2O3微粉、以1～3wt％的水合氧化铝微粉、以5～8wt％的烧结90铝镁缺陷尖晶石微粉，以0.5～1.5wt％的纯鋁酸钙水泥，以5～10wt％的碳氮化物预处理复合微粉为基质，以0.05～0.5wt％的尿素，以0.5～1.0wt％的合金粉末，以0.02～0.2wt％的热震稳定剂、3～5wt％的液体减水剂为外加剂；本发明的有益效果是，所制备的透气砖具有强度高、高热震稳定性、耐钢水冲刷、抗钢渣的渗透和侵蚀性优异，耐烧损、可免反清洗、使用寿命长的特点。
Steel ladle air brick and preparation method thereof
The invention discloses a steel ladle air brick and a preparation method thereof. The steel ladle air brick is prepared from the following raw materials: 50-70wt% of alum slag particles, 3-10wt% of sintered 90 aluminum-magnesium defect spinel fine particles and 3-8wt% of hot pressed sintered carbonitride fine particles which are taken as aggregates; 3-10 wt% of active alpha-Al2O3 micro powder, 1-3 wt% of hydrated alumina micro powder, 5-8 wt% of sintered 90 aluminum magnesium defect spinel micro powder, 0.5-1.5 wt% of pure alumina calcium cement and 5-10 wt% of carbonitride pretreated composite micro powder which are taken as matrixes; and 0.05-0.5 wt% of urea, 0.5-1.0 wt% of alloy powder, 0.02-0.2 wt% of a thermal shock stabilizer and 3-5 wt% of a liquid water reducer which are taken as additives. The steel ladle air brick has the beneficial effect that the prepared air brick has the characteristics of high strength, high thermal shock resistance, molten steel scouring resistance, steel slag permeation resistance, excellent erosion resistance, burning loss resistance, no need for backwashing and long service life.
本发明公开了一种钢包透气砖及其制备方法，钢包透气砖的制备原料如下：50～70wt％的矾渣颗粒、以3～10wt％的烧结90铝镁缺陷尖晶石细颗粒、3～8wt％的热压烧结碳氮化物细颗粒为骨料，以3～10wt％的活性α‑Al2O3微粉、以1～3wt％的水合氧化铝微粉、以5～8wt％的烧结90铝镁缺陷尖晶石微粉，以0.5～1.5wt％的纯鋁酸钙水泥，以5～10wt％的碳氮化物预处理复合微粉为基质，以0.05～0.5wt％的尿素，以0.5～1.0wt％的合金粉末，以0.02～0.2wt％的热震稳定剂、3～5wt％的液体减水剂为外加剂；本发明的有益效果是，所制备的透气砖具有强度高、高热震稳定性、耐钢水冲刷、抗钢渣的渗透和侵蚀性优异，耐烧损、可免反清洗、使用寿命长的特点。
Steel ladle air brick and preparation method thereof
一种钢包透气砖及其制备方法
GUO CHENGCHENG (author) / GAO HUI (author) / ZHANG XINGYU (author) / ZENG ZHIWEI (author)
2022-02-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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