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A platform for research: civil engineering, architecture and urbanism
High-wear-resistance white corundum castable
The invention relates to a white corundum castable with high wear resistance. The white corundum castable comprises 30-45% of fused white corundum, 20-30% of tabular corundum, 3-5% of alumina powder, 5-12% of corundum powder, 6-10% of zirconite powder, 0-0.2% of explosion-proof fiber, 0-0.8% of a shrink-proof agent, 10-14% of calcium aluminate cement and 10-15% of an additive. The preparation method has the beneficial effects that the use temperature can reach 1800 DEG C, the heat-resistant strength is high, the wear resistance is good, the thermal shock resistance is excellent, and the high-temperature volume stability is good; stripping resistance, permeation resistance, corrosion resistance and acid and alkali resistance are excellent; the construction difficulty is reduced, the expansion joints are relatively simple in arrangement, and the oven baking risk is reduced. When the high-wear-resistance white corundum castable is applied to a key part of a circulating fluidized bed boiler, the service life of the high-wear-resistance white corundum castable is prolonged by 6-8 months; when the device is applied to the hazardous waste industry, parts which need to be replaced after operating for one year originally and do not need to be maintained for two years. The oven drying time is shortened by 1-2 days; and after the high-wear-resistance white corundum castable is used, the maintenance life cycle can be prolonged.
本发明涉及一种高耐磨白刚玉浇注料，包括：30～45%的电熔白刚玉、20～30%的板状刚玉、3～5%的氧化铝粉、5～12%的刚玉粉、6～10%的锆英石粉、0～0.2%的防爆纤维、0～0.8%的防缩剂、10～14%的加铝酸钙水泥，10～15%的添加剂。本发明的有益效果是：使用温度可达1800℃，耐热强度高、耐磨性好、热震性能优越、高温体积稳定性好；抗剥落、抗渗透抗腐蚀、耐酸碱性优异；施工难度降低，膨胀缝设置相对简单，烘炉风险下降。应用在循环流化床锅炉的关键部位，高耐磨白刚玉浇注料使用寿命比原来延长了6～8个月；运用到危废行业，原运行1年就需要更换的部位，2年都无需维修。烘炉时间减少了1～2天；使用高耐磨白刚玉浇注料后，可延长维修寿命周期。
High-wear-resistance white corundum castable
The invention relates to a white corundum castable with high wear resistance. The white corundum castable comprises 30-45% of fused white corundum, 20-30% of tabular corundum, 3-5% of alumina powder, 5-12% of corundum powder, 6-10% of zirconite powder, 0-0.2% of explosion-proof fiber, 0-0.8% of a shrink-proof agent, 10-14% of calcium aluminate cement and 10-15% of an additive. The preparation method has the beneficial effects that the use temperature can reach 1800 DEG C, the heat-resistant strength is high, the wear resistance is good, the thermal shock resistance is excellent, and the high-temperature volume stability is good; stripping resistance, permeation resistance, corrosion resistance and acid and alkali resistance are excellent; the construction difficulty is reduced, the expansion joints are relatively simple in arrangement, and the oven baking risk is reduced. When the high-wear-resistance white corundum castable is applied to a key part of a circulating fluidized bed boiler, the service life of the high-wear-resistance white corundum castable is prolonged by 6-8 months; when the device is applied to the hazardous waste industry, parts which need to be replaced after operating for one year originally and do not need to be maintained for two years. The oven drying time is shortened by 1-2 days; and after the high-wear-resistance white corundum castable is used, the maintenance life cycle can be prolonged.
本发明涉及一种高耐磨白刚玉浇注料，包括：30～45%的电熔白刚玉、20～30%的板状刚玉、3～5%的氧化铝粉、5～12%的刚玉粉、6～10%的锆英石粉、0～0.2%的防爆纤维、0～0.8%的防缩剂、10～14%的加铝酸钙水泥，10～15%的添加剂。本发明的有益效果是：使用温度可达1800℃，耐热强度高、耐磨性好、热震性能优越、高温体积稳定性好；抗剥落、抗渗透抗腐蚀、耐酸碱性优异；施工难度降低，膨胀缝设置相对简单，烘炉风险下降。应用在循环流化床锅炉的关键部位，高耐磨白刚玉浇注料使用寿命比原来延长了6～8个月；运用到危废行业，原运行1年就需要更换的部位，2年都无需维修。烘炉时间减少了1～2天；使用高耐磨白刚玉浇注料后，可延长维修寿命周期。
High-wear-resistance white corundum castable
一种高耐磨白刚玉浇注料
GU XIAOCHU (author) / JIANG YU (author) / HU BAIJUN (author)
2025-01-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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