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A platform for research: civil engineering, architecture and urbanism
Durable aluminum-titanate-containing magnesite-chrome brick for colored smelting and preparation method thereof
The invention relates to a durable aluminum-titanate-containing magnesite-chrome brick for colored smelting. The durable aluminum-titanate-containing magnesite-chrome brick comprises the following raw materials by weight: 50-55% of fused magnesite-chrome sand, 25-30% of South Africa chrome ore, 15-20% of sintered magnesia, 2-5% of an additive, 8-10% of aluminum titanate and 2-5% of a binding agent, wherein the additive is alpha-Al2O3 and a PC-F water reducer, the binding agent is non-alkaline YTTJ, the particle size of the fused magnesia-chrome sand is 2-4 mm, and the particle size of the South African chrome ore is 1 mm. According to the durable aluminum-titanate-containing magnesite-chrome brick for colored smelting and the preparation method thereof, the density strength, thermal shock resistance and copper slag corrosion resistance of the brick can be effectively improved by introducing alpha-Al2O3 micro powder into the magnesite-chrome brick, especially when the PC-F water reducer is added at the same time, Al2O3 can react with CaO and SiO2 in the magnesite-chrome brick to generate low-melting-point substances, which are continuously distributed, so that material transfer and sintering can be promoted; and meanwhile, a part of magnesium aluminate spinel can be generated to occupy parts of pores, so that the compactness, the strength and the copper slag corrosion resistance of the magnesite-chrome brick are improved.
本发明涉及一种耐用的有色治炼用含钛酸铝的镁铬砖，包括以下重量份数配比的原料：电熔镁铬砂50‑55％，南非铬矿25‑30％，烧结镁砂15‑20％，添加剂2‑5％，钛酸铝8‑10％和结合剂2‑5％，所述添加剂为α‑Al2O3和PC‑F减水剂，所述结合剂为非碱性的YTTJ，所述电熔镁铬砂的粒度为2‑4mm，所述南非铬矿的粒度为1mm。该耐用的有色治炼用含钛酸铝的镁铬砖及其制备方法，通过在镁铬砖中引人α‑Al2O3微粉能有效提高砖的致密度强度、抗热震性和抗铜渣侵蚀性，尤其是同时加人PC‑F减水剂时，Al2O3会与镁铬砖中的CaO和Si02反应生成低熔点物质，并呈连续状分布，能够促进物质传输和烧结，同时又能生成部分镁铝尖晶石，占据部分孔隙，这些均使得镁铬砖的致密度、强度和抗铜渣侵蚀性提高。
Durable aluminum-titanate-containing magnesite-chrome brick for colored smelting and preparation method thereof
The invention relates to a durable aluminum-titanate-containing magnesite-chrome brick for colored smelting. The durable aluminum-titanate-containing magnesite-chrome brick comprises the following raw materials by weight: 50-55% of fused magnesite-chrome sand, 25-30% of South Africa chrome ore, 15-20% of sintered magnesia, 2-5% of an additive, 8-10% of aluminum titanate and 2-5% of a binding agent, wherein the additive is alpha-Al2O3 and a PC-F water reducer, the binding agent is non-alkaline YTTJ, the particle size of the fused magnesia-chrome sand is 2-4 mm, and the particle size of the South African chrome ore is 1 mm. According to the durable aluminum-titanate-containing magnesite-chrome brick for colored smelting and the preparation method thereof, the density strength, thermal shock resistance and copper slag corrosion resistance of the brick can be effectively improved by introducing alpha-Al2O3 micro powder into the magnesite-chrome brick, especially when the PC-F water reducer is added at the same time, Al2O3 can react with CaO and SiO2 in the magnesite-chrome brick to generate low-melting-point substances, which are continuously distributed, so that material transfer and sintering can be promoted; and meanwhile, a part of magnesium aluminate spinel can be generated to occupy parts of pores, so that the compactness, the strength and the copper slag corrosion resistance of the magnesite-chrome brick are improved.
本发明涉及一种耐用的有色治炼用含钛酸铝的镁铬砖，包括以下重量份数配比的原料：电熔镁铬砂50‑55％，南非铬矿25‑30％，烧结镁砂15‑20％，添加剂2‑5％，钛酸铝8‑10％和结合剂2‑5％，所述添加剂为α‑Al2O3和PC‑F减水剂，所述结合剂为非碱性的YTTJ，所述电熔镁铬砂的粒度为2‑4mm，所述南非铬矿的粒度为1mm。该耐用的有色治炼用含钛酸铝的镁铬砖及其制备方法，通过在镁铬砖中引人α‑Al2O3微粉能有效提高砖的致密度强度、抗热震性和抗铜渣侵蚀性，尤其是同时加人PC‑F减水剂时，Al2O3会与镁铬砖中的CaO和Si02反应生成低熔点物质，并呈连续状分布，能够促进物质传输和烧结，同时又能生成部分镁铝尖晶石，占据部分孔隙，这些均使得镁铬砖的致密度、强度和抗铜渣侵蚀性提高。
Durable aluminum-titanate-containing magnesite-chrome brick for colored smelting and preparation method thereof
一种耐用的有色治炼用含钛酸铝的镁铬砖及其制备方法
WANG XUYUAN (author) / YUAN LIN (author) / LI YUANJIN (author) / MENG LINGXIAO (author) / ZHANG HUIFANG (author) / WANG JIAZHENG (author) / GAO HONGXING (author) / LIANG QINJUN (author) / HAN BO (author) / ZHANG YAQUAN (author)
2021-10-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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