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Low-thermal-conductivity refractory material, low-thermal-conductivity refractory brick, preparation method of refractory brick and application
The invention provides a low-thermal-conductivity refractory material, a low-thermal-conductivity refractory brick, a preparation method of the low-thermal-conductivity refractory brick and application, and belongs to the technical field of refractory materials. The low-thermal-conductivity refractory material is prepared from the following raw materials: magnesia particles, magnesia fine powder, magnesium aluminate spinel particles, light spinel particles, calcined spinel micro powder and a binding agent. The low-thermal-conductivity refractory brick prepared by taking the low-thermal-conductivity refractory material as a raw material is stable in high-temperature performance, resistant to corrosion of alkali metals, volatile salts and the like, and suitable for a severe environment of a rotary cement kiln or a rotary lime kiln. Meanwhile, the low-heat-conduction refractory brick avoids the problem of Cr<6+> public nuisance pollution of magnesite-chrome bricks, has the characteristics of high strength, low heat conduction, wear resistance, high-temperature load resistance and the like, can meet the requirements of high-temperature strength and mechanical flexibility in use of a cement rotary kiln or a lime rotary kiln, can effectively reduce the dead weight of a rotary kiln and the temperature of a barrel body, reduces te energy and equipment consumption, and improves the service life of the brick for the rotary kiln.
本发明提供了一种低导热耐火材料、低导热耐火砖及其制备方法和应用，属于耐火材料技术领域。本发明所述低导热耐火材料的制备原料包括镁砂颗粒、镁砂细粉、镁铝尖晶石颗粒、轻质尖晶石颗粒、煅烧尖晶石微粉与结合剂。以所述低导热耐火材料为原料制备的低导热耐火砖，高温性能稳定，耐碱金属、挥发盐类等的侵蚀，适用于水泥回转窑或石灰回转窑的苛刻环境；同时，所述低导热耐火砖避免了镁铬砖的Cr6+公害污染问题，且具有高强度、低导热、耐磨损及抗高温负荷等特点，可达到水泥回转窑或石灰回转窑使用的高温强度、机械柔性的要求，还可以有效降低回转窑的自重及筒体温度，降低了能源及设备消耗，并提高了回转窑用砖的使用寿命。
Low-thermal-conductivity refractory material, low-thermal-conductivity refractory brick, preparation method of refractory brick and application
The invention provides a low-thermal-conductivity refractory material, a low-thermal-conductivity refractory brick, a preparation method of the low-thermal-conductivity refractory brick and application, and belongs to the technical field of refractory materials. The low-thermal-conductivity refractory material is prepared from the following raw materials: magnesia particles, magnesia fine powder, magnesium aluminate spinel particles, light spinel particles, calcined spinel micro powder and a binding agent. The low-thermal-conductivity refractory brick prepared by taking the low-thermal-conductivity refractory material as a raw material is stable in high-temperature performance, resistant to corrosion of alkali metals, volatile salts and the like, and suitable for a severe environment of a rotary cement kiln or a rotary lime kiln. Meanwhile, the low-heat-conduction refractory brick avoids the problem of Cr<6+> public nuisance pollution of magnesite-chrome bricks, has the characteristics of high strength, low heat conduction, wear resistance, high-temperature load resistance and the like, can meet the requirements of high-temperature strength and mechanical flexibility in use of a cement rotary kiln or a lime rotary kiln, can effectively reduce the dead weight of a rotary kiln and the temperature of a barrel body, reduces te energy and equipment consumption, and improves the service life of the brick for the rotary kiln.
本发明提供了一种低导热耐火材料、低导热耐火砖及其制备方法和应用，属于耐火材料技术领域。本发明所述低导热耐火材料的制备原料包括镁砂颗粒、镁砂细粉、镁铝尖晶石颗粒、轻质尖晶石颗粒、煅烧尖晶石微粉与结合剂。以所述低导热耐火材料为原料制备的低导热耐火砖，高温性能稳定，耐碱金属、挥发盐类等的侵蚀，适用于水泥回转窑或石灰回转窑的苛刻环境；同时，所述低导热耐火砖避免了镁铬砖的Cr6+公害污染问题，且具有高强度、低导热、耐磨损及抗高温负荷等特点，可达到水泥回转窑或石灰回转窑使用的高温强度、机械柔性的要求，还可以有效降低回转窑的自重及筒体温度，降低了能源及设备消耗，并提高了回转窑用砖的使用寿命。
Low-thermal-conductivity refractory material, low-thermal-conductivity refractory brick, preparation method of refractory brick and application
一种低导热耐火材料、低导热耐火砖及其制备方法和应用
WANG GUIPENG (author) / LU YICHUN (author) / LU JIANNONG (author) / GAO HONGYUE (author)
2021-09-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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