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High-density corundum mullite brick for hazardous waste disposal rotary kiln
The invention discloses a high-density corundum mullite brick for a hazardous waste disposal rotary kiln, and belongs to the technical field of refractory materials. The corundum-mullite brick comprises the following components in percentage by weight: 65-80% of fused white corundum of which the particle size is less than or equal to 5mm; 10-20% of andalusite of which the particle size is less than or equal to 4mm; 5-15% by mass of alumina micro powder of which the particle size is less than or equal to 0.004 mm,; and 1-5% by mass of a binding agent. The firing temperature is 1450-1650 DEG C, the temperature is kept constant for 4-10 hours at the highest point of the temperature, and the total firing time is 60-120 hours. The high-density corundum mullite brick has the advantages that the high-density corundum mullite brick is suitable for various specifications of rotary kilns for disposing hazardous wastes, is good in erosion resistance, permeation resistance and thermal shock resistance and excellent in high-temperature wear resistance, the service life can reach 6 months or longer, and the fired high-density corundum mullite brick is simple in process and excellent in performance.
一种危险废物处置回转窑用高致密刚玉莫来石砖，属于耐火材料技术领域。刚玉莫来石砖按重量百分比各组份为：粒径≤5mm的电熔白刚玉，质量百分比为65～80％；粒径≤4mm的红柱石，质量百分比为10～20％；粒径≤0.004mm氧化铝微粉，质量百分比为5～15％；结合剂：质量百分比为1～5％。烧成温度1450～1650℃，在温度最高点恒温4～10小时，总的烧成时间在60～120小时。优点在于，适用于各种规格危险废弃物处置用回转窑，抗侵蚀、抗渗透、热震稳定性好、高温耐磨性优良，使用寿命可达到6个月以上，烧制成的高致密刚玉莫来石砖工艺简单性能优良。
High-density corundum mullite brick for hazardous waste disposal rotary kiln
The invention discloses a high-density corundum mullite brick for a hazardous waste disposal rotary kiln, and belongs to the technical field of refractory materials. The corundum-mullite brick comprises the following components in percentage by weight: 65-80% of fused white corundum of which the particle size is less than or equal to 5mm; 10-20% of andalusite of which the particle size is less than or equal to 4mm; 5-15% by mass of alumina micro powder of which the particle size is less than or equal to 0.004 mm,; and 1-5% by mass of a binding agent. The firing temperature is 1450-1650 DEG C, the temperature is kept constant for 4-10 hours at the highest point of the temperature, and the total firing time is 60-120 hours. The high-density corundum mullite brick has the advantages that the high-density corundum mullite brick is suitable for various specifications of rotary kilns for disposing hazardous wastes, is good in erosion resistance, permeation resistance and thermal shock resistance and excellent in high-temperature wear resistance, the service life can reach 6 months or longer, and the fired high-density corundum mullite brick is simple in process and excellent in performance.
一种危险废物处置回转窑用高致密刚玉莫来石砖，属于耐火材料技术领域。刚玉莫来石砖按重量百分比各组份为：粒径≤5mm的电熔白刚玉，质量百分比为65～80％；粒径≤4mm的红柱石，质量百分比为10～20％；粒径≤0.004mm氧化铝微粉，质量百分比为5～15％；结合剂：质量百分比为1～5％。烧成温度1450～1650℃，在温度最高点恒温4～10小时，总的烧成时间在60～120小时。优点在于，适用于各种规格危险废弃物处置用回转窑，抗侵蚀、抗渗透、热震稳定性好、高温耐磨性优良，使用寿命可达到6个月以上，烧制成的高致密刚玉莫来石砖工艺简单性能优良。
High-density corundum mullite brick for hazardous waste disposal rotary kiln
一种危险废物处置回转窑用高致密刚玉莫来石砖
XIA WENBIN (author) / GAO CHANGHE (author) / ZHAN HUASHENG (author) / MA SHULONG (author) / WEI YINGFENG (author) / CAI BINLI (author)
2021-04-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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