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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Stable-performance alumina-chrome brick for zinc volatilization kiln and preparation method thereof
The invention relates to the technical field of alumina-chrome bricks, and discloses a stable-performance alumina-chrome brick for a zinc volatilization kiln. The brick comprises the following raw materials in percentage by weight: 15-25% of large fused white corundum particles, 15-20% of medium fused white corundum particles, 7-13% of small fused white corundum particles, 20-25% of tabular corundum fine powder, 4-6% of small fused chromic oxide particles, 4-6% of fused chromium oxide fine powder, 20-25% of chromium oxide green fine powder, 0.3-0.7% of South African andalusite fine powder, 3-5% of active alpha aluminum oxide micro powder and 3-7% of a composite binder. According to the stable-performance alumina-chrome brick for the zinc volatilization kiln and the preparation method of the stable-performance alumina-chrome brick, the South African andalusite fine powder is a common aluminosilicate mineral, belongs to a typical mineral caused by low-grade thermal metamorphism, is commonly seen in argillaceous rock in a metamorphic aureole, and is converted into a mullite phase at high temperature so that the thermal shock resistance of the material is improved; the addition of the electrically-smelted chromic oxide small particles and the electrically-smelted chromic oxide fine powder has decisive factors on the quality and slag corrosion resistance of refractory material products, and compared with magnesium-aluminum-chromium bricks, the brick has a higher content of chromic oxide.
本发明涉及铝铬砖技术领域，且公开了一种性能稳定的锌挥发窑用铝铬砖，包括以下重量份数配比的原料：电熔白刚玉大颗粒15‑25％，电熔白刚玉中颗粒15‑20％，电熔白刚玉小颗粒7‑13％，板状刚玉细粉20‑25％，电熔氧化铬小颗粒4‑6％，电熔氧化铬细粉4‑6％，氧化铬绿细粉20‑25％，南非红柱石细粉0.3‑0.7％，活性α氧化铝微粉3‑5％和复合粘结剂3‑7％。该性能稳定的锌挥发窑用铝铬砖及其制备方法，南非红柱石细粉是一种常见的铝硅酸盐矿物，属于典型的低级热变质作用成因的矿物，常见于接触变质带的泥质岩中，在高温下转化为莫来石相，提高材料的抗热震性能，电熔氧化铬小颗粒和电熔氧化铬细粉的加入对耐火材料制品的质量及抗渣侵蚀性起决定性因素，相比于镁铝铬质砖，氧化铬的含量越高。
Stable-performance alumina-chrome brick for zinc volatilization kiln and preparation method thereof
The invention relates to the technical field of alumina-chrome bricks, and discloses a stable-performance alumina-chrome brick for a zinc volatilization kiln. The brick comprises the following raw materials in percentage by weight: 15-25% of large fused white corundum particles, 15-20% of medium fused white corundum particles, 7-13% of small fused white corundum particles, 20-25% of tabular corundum fine powder, 4-6% of small fused chromic oxide particles, 4-6% of fused chromium oxide fine powder, 20-25% of chromium oxide green fine powder, 0.3-0.7% of South African andalusite fine powder, 3-5% of active alpha aluminum oxide micro powder and 3-7% of a composite binder. According to the stable-performance alumina-chrome brick for the zinc volatilization kiln and the preparation method of the stable-performance alumina-chrome brick, the South African andalusite fine powder is a common aluminosilicate mineral, belongs to a typical mineral caused by low-grade thermal metamorphism, is commonly seen in argillaceous rock in a metamorphic aureole, and is converted into a mullite phase at high temperature so that the thermal shock resistance of the material is improved; the addition of the electrically-smelted chromic oxide small particles and the electrically-smelted chromic oxide fine powder has decisive factors on the quality and slag corrosion resistance of refractory material products, and compared with magnesium-aluminum-chromium bricks, the brick has a higher content of chromic oxide.
本发明涉及铝铬砖技术领域，且公开了一种性能稳定的锌挥发窑用铝铬砖，包括以下重量份数配比的原料：电熔白刚玉大颗粒15‑25％，电熔白刚玉中颗粒15‑20％，电熔白刚玉小颗粒7‑13％，板状刚玉细粉20‑25％，电熔氧化铬小颗粒4‑6％，电熔氧化铬细粉4‑6％，氧化铬绿细粉20‑25％，南非红柱石细粉0.3‑0.7％，活性α氧化铝微粉3‑5％和复合粘结剂3‑7％。该性能稳定的锌挥发窑用铝铬砖及其制备方法，南非红柱石细粉是一种常见的铝硅酸盐矿物，属于典型的低级热变质作用成因的矿物，常见于接触变质带的泥质岩中，在高温下转化为莫来石相，提高材料的抗热震性能，电熔氧化铬小颗粒和电熔氧化铬细粉的加入对耐火材料制品的质量及抗渣侵蚀性起决定性因素，相比于镁铝铬质砖，氧化铬的含量越高。
Stable-performance alumina-chrome brick for zinc volatilization kiln and preparation method thereof
一种性能稳定的锌挥发窑用铝铬砖及其制备方法
WANG XUYUAN (Autor:in) / YUAN LIN (Autor:in) / LI YUANJIN (Autor:in) / MENG LINGXIAO (Autor:in) / ZHANG HUIFANG (Autor:in) / WANG JIAZHENG (Autor:in) / GAO HONGXING (Autor:in) / LIANG QINJUN (Autor:in) / HAN BO (Autor:in) / ZHANG YAQUAN (Autor:in)
26.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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