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A platform for research: civil engineering, architecture and urbanism
Magnesium aluminate spinel brick for co-processing cement kiln and preparation method and application thereof
The invention belongs to the technical field of refractory materials, and particularly relates to a magnesium aluminate spinel brick for a co-processing cement kiln and a preparation method and application thereof. The magnesia-alumina spinel brick is prepared by taking flotation magnesia, high-purity magnesia and fused magnesia-alumina spinel as main raw materials and carrying out high-temperature treatment, wherein the mass ratio of the flotation magnesite to the high-purity magnesite to the fused magnesia-alumina spinel is (54-65): (18-28): (12-25). The magnesium aluminate spinel brick disclosed by the invention not only has proper normal-temperature compressive strength and refractoriness under load, but also has higher volume density and lower apparent porosity, is higher in sinteringdensification degree, can effectively reduce permeation of corrosive substances, and is better in corrosion resistance, meanwhile, the thermal shock stability, the high-temperature breaking strengthand the high-temperature toughness are higher, the magnesia-alumina spinel brick is excellent in performance and low in cost, and the application range of the magnesia-alumina spinel brick is wider due to the high cost performance of the magnesia-alumina spinel brick.
本发明属于耐火材料技术领域，具体涉及一种协同处置水泥窑用镁铝尖晶石砖及其制备方法与应用。所述镁铝尖晶石砖，其是以浮选镁砂、高纯镁砂、电熔镁铝尖晶石为主要原料，经高温处理制得；所述浮选镁砂、高纯镁砂、电熔镁铝尖晶石的质量比为(54～65)：(18～28)：(12～25)。本发明所述镁铝尖晶石砖不仅具有适合的常温耐压强度、荷重软化温度，而且还兼具更高的体积密度及更低的显气孔率，烧结致密化程度更高，可有效降低侵蚀性物质的渗透，抗侵蚀性更佳；同时还具有更高的热震稳定性能、高温抗折强度及高温韧性；所述镁铝尖晶石砖不仅性能优异，而且成本低廉，其较高的性价比使其应用范围更为广泛。
Magnesium aluminate spinel brick for co-processing cement kiln and preparation method and application thereof
The invention belongs to the technical field of refractory materials, and particularly relates to a magnesium aluminate spinel brick for a co-processing cement kiln and a preparation method and application thereof. The magnesia-alumina spinel brick is prepared by taking flotation magnesia, high-purity magnesia and fused magnesia-alumina spinel as main raw materials and carrying out high-temperature treatment, wherein the mass ratio of the flotation magnesite to the high-purity magnesite to the fused magnesia-alumina spinel is (54-65): (18-28): (12-25). The magnesium aluminate spinel brick disclosed by the invention not only has proper normal-temperature compressive strength and refractoriness under load, but also has higher volume density and lower apparent porosity, is higher in sinteringdensification degree, can effectively reduce permeation of corrosive substances, and is better in corrosion resistance, meanwhile, the thermal shock stability, the high-temperature breaking strengthand the high-temperature toughness are higher, the magnesia-alumina spinel brick is excellent in performance and low in cost, and the application range of the magnesia-alumina spinel brick is wider due to the high cost performance of the magnesia-alumina spinel brick.
本发明属于耐火材料技术领域，具体涉及一种协同处置水泥窑用镁铝尖晶石砖及其制备方法与应用。所述镁铝尖晶石砖，其是以浮选镁砂、高纯镁砂、电熔镁铝尖晶石为主要原料，经高温处理制得；所述浮选镁砂、高纯镁砂、电熔镁铝尖晶石的质量比为(54～65)：(18～28)：(12～25)。本发明所述镁铝尖晶石砖不仅具有适合的常温耐压强度、荷重软化温度，而且还兼具更高的体积密度及更低的显气孔率，烧结致密化程度更高，可有效降低侵蚀性物质的渗透，抗侵蚀性更佳；同时还具有更高的热震稳定性能、高温抗折强度及高温韧性；所述镁铝尖晶石砖不仅性能优异，而且成本低廉，其较高的性价比使其应用范围更为广泛。
Magnesium aluminate spinel brick for co-processing cement kiln and preparation method and application thereof
一种协同处置水泥窑用镁铝尖晶石砖及其制备方法与应用
KANG JIAN (author) / MA SHULONG (author) / MA FEI (author) / WANG ZHIFENG (author) / GAO CHANGHE (author) / ZHANG JILI (author) / NI GAOJIN (author) / ZHOU XINGONG (author) / KONG XIANGKUI (author)
2021-03-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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