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Environment-friendly aluminum-chromium brick for copper-nickel smelting furnace
The invention discloses an environment-friendly aluminum-chromium brick for a copper-nickel smelting furnace. The aluminum-chromium brick for the copper-nickel smelting furnace comprises the following raw materials in percentage by weight: 50-70% of particles with the particle size of 4-0mm; 10-20% of fine powder with the particle size of less than or equal to 0.06 mm; 20-30% of micro powder with a particle size of less than or equal to 0.045 mm, and 0.1-0.4% of boron carbide micro powder; and 2-5% of a binding agent is added. The aluminum-chromium brick for the copper-nickel smelting furnace has better normal-temperature and high-temperature performance, excellent melt mechanical erosion resistance, low porosity and good erosion resistance and permeation resistance; the boron carbide B4C micro powder added into the aluminum-chromium brick can be used as an antioxidant in the copper-nickel oxygen-enriched smelting and blowing process on one hand, and on the other hand, boron oxide B2O3 generated by oxidizing B4C can be used as an acidic oxide to reduce the content of hexavalent chromium compounds formed in the brick body due to the existence of basic oxides.
本发明公开了一种铜镍冶炼炉用环保型铝铬砖，一种铜镍冶炼炉用铝铬砖的原料组成百分比为：粒度4～0mm颗粒50%‑70%；粒度≤0.06mm的细粉10‑20%；粒度≤0.045mm的微粉20‑30%，含0.1～0.4%的碳化硼微粉；外加2‑5%的结合剂。该铜镍冶炼炉用铝铬砖具有较好的常温及高温性能，抗熔体机械冲刷性能优良，气孔率低，抗侵蚀和抗渗透性能良好；该铝铬砖添加的碳化硼B4C微粉在铜镍富氧冶炼和吹炼的过程中一方面可以作为抗氧化剂使用，另一方面B4C氧化生成的氧化硼B2O3作为酸性氧化物可以降低砖体中因碱性氧化物存在而形成的六价铬化合物的含量。
Environment-friendly aluminum-chromium brick for copper-nickel smelting furnace
The invention discloses an environment-friendly aluminum-chromium brick for a copper-nickel smelting furnace. The aluminum-chromium brick for the copper-nickel smelting furnace comprises the following raw materials in percentage by weight: 50-70% of particles with the particle size of 4-0mm; 10-20% of fine powder with the particle size of less than or equal to 0.06 mm; 20-30% of micro powder with a particle size of less than or equal to 0.045 mm, and 0.1-0.4% of boron carbide micro powder; and 2-5% of a binding agent is added. The aluminum-chromium brick for the copper-nickel smelting furnace has better normal-temperature and high-temperature performance, excellent melt mechanical erosion resistance, low porosity and good erosion resistance and permeation resistance; the boron carbide B4C micro powder added into the aluminum-chromium brick can be used as an antioxidant in the copper-nickel oxygen-enriched smelting and blowing process on one hand, and on the other hand, boron oxide B2O3 generated by oxidizing B4C can be used as an acidic oxide to reduce the content of hexavalent chromium compounds formed in the brick body due to the existence of basic oxides.
本发明公开了一种铜镍冶炼炉用环保型铝铬砖，一种铜镍冶炼炉用铝铬砖的原料组成百分比为：粒度4～0mm颗粒50%‑70%；粒度≤0.06mm的细粉10‑20%；粒度≤0.045mm的微粉20‑30%，含0.1～0.4%的碳化硼微粉；外加2‑5%的结合剂。该铜镍冶炼炉用铝铬砖具有较好的常温及高温性能，抗熔体机械冲刷性能优良，气孔率低，抗侵蚀和抗渗透性能良好；该铝铬砖添加的碳化硼B4C微粉在铜镍富氧冶炼和吹炼的过程中一方面可以作为抗氧化剂使用，另一方面B4C氧化生成的氧化硼B2O3作为酸性氧化物可以降低砖体中因碱性氧化物存在而形成的六价铬化合物的含量。
Environment-friendly aluminum-chromium brick for copper-nickel smelting furnace
一种铜镍冶炼炉用环保型铝铬砖
LI KUNPENG (author) / WANG HAN (author) / ZHANG TAO (author) / FENG ZHIYUAN (author) / FAN MUXU (author) / SHI PENGKUN (author) / YOON HONG-KI (author) / LI JIANQIANG (author) / LIU PENGCHENG (author)
2023-10-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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