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A platform for research: civil engineering, architecture and urbanism
Long-life electric furnace cover and preparation method thereof
The invention discloses a long-life electric furnace cover and a preparation method thereof. Uniformly mixing 60-80% by mass of silicon carbide particles and 20-40% by mass of vanadium-containing steel slag powder to obtain a granulation material; granulating the granulation material, drying the obtained material particles at 70-90 DEG C for 5-10 hours, then carrying out heat treatment on the material particles at 600-800 DEG C for 1-3 hours, and screening the material particles to obtain a composite silicon carbide granulation material with the particle size of 1-0 mm; the preparation method comprises the following steps: uniformly mixing the following components in percentage by mass: 20-40% of 8-1mm mullite particles, 15-25% of 3-1mm tabular corundum, 15-25% of 1-0mm tabular corundum, 1-3% of silicon carbide particles, 3-5% of a composite silicon carbide granulation material, 1-5% of fused white corundum powder, 5-10% of corundum micro-powder, 1-5% of silicon micro-powder, 0.2-0.6% of explosion-proof fibers, 0.5-1% of a water reducing agent and 1-3% of calcium aluminate cement; adding 4-7% of water, uniformly mixing, and pouring into a mold for vibration molding; and naturally curing with a mold for 24 hours, demolding, naturally curing for 2-3 days, baking at 200-250 DEG C for 30-40 hours, and cooling to room temperature along with the furnace. The furnace cover is long in service life.
本发明公开了一种长寿命电炉盖及其制备方法。按质量百分比将60‑80％的碳化硅颗粒、20‑40％的含钒钢渣粉混合均匀得到造粒料；将造粒料进行造粒，将得到的物料颗粒在70‑90℃下烘干5‑10小时，然后对物料颗粒在600‑800℃下热处理1‑3小时，对物料颗粒进行筛分，得到粒径为1‑0mm的复合碳化硅造粒料；按质量百分比将20‑40％的8‑1mm莫来石颗粒、15‑25％的3‑1mm板状刚玉、15‑25％的1‑0mm板状刚玉、1‑3％的碳化硅颗粒、3‑5％的复合碳化硅造粒料、1‑5％的电熔白刚玉粉、5‑10％的刚玉微粉、1‑5％的硅微粉、0.2‑0.6％的防爆纤维、0.5‑1％的减水剂、1‑3％的铝酸钙水泥，外加4‑7％的水混合均匀，倒入模具中振动成型；带模具自然养护24小时后脱模，再先后经自然养护2‑3天、200‑250℃烘烤30‑40小时，随炉冷却至室温。本发明炉盖使用寿命长。
Long-life electric furnace cover and preparation method thereof
The invention discloses a long-life electric furnace cover and a preparation method thereof. Uniformly mixing 60-80% by mass of silicon carbide particles and 20-40% by mass of vanadium-containing steel slag powder to obtain a granulation material; granulating the granulation material, drying the obtained material particles at 70-90 DEG C for 5-10 hours, then carrying out heat treatment on the material particles at 600-800 DEG C for 1-3 hours, and screening the material particles to obtain a composite silicon carbide granulation material with the particle size of 1-0 mm; the preparation method comprises the following steps: uniformly mixing the following components in percentage by mass: 20-40% of 8-1mm mullite particles, 15-25% of 3-1mm tabular corundum, 15-25% of 1-0mm tabular corundum, 1-3% of silicon carbide particles, 3-5% of a composite silicon carbide granulation material, 1-5% of fused white corundum powder, 5-10% of corundum micro-powder, 1-5% of silicon micro-powder, 0.2-0.6% of explosion-proof fibers, 0.5-1% of a water reducing agent and 1-3% of calcium aluminate cement; adding 4-7% of water, uniformly mixing, and pouring into a mold for vibration molding; and naturally curing with a mold for 24 hours, demolding, naturally curing for 2-3 days, baking at 200-250 DEG C for 30-40 hours, and cooling to room temperature along with the furnace. The furnace cover is long in service life.
本发明公开了一种长寿命电炉盖及其制备方法。按质量百分比将60‑80％的碳化硅颗粒、20‑40％的含钒钢渣粉混合均匀得到造粒料；将造粒料进行造粒，将得到的物料颗粒在70‑90℃下烘干5‑10小时，然后对物料颗粒在600‑800℃下热处理1‑3小时，对物料颗粒进行筛分，得到粒径为1‑0mm的复合碳化硅造粒料；按质量百分比将20‑40％的8‑1mm莫来石颗粒、15‑25％的3‑1mm板状刚玉、15‑25％的1‑0mm板状刚玉、1‑3％的碳化硅颗粒、3‑5％的复合碳化硅造粒料、1‑5％的电熔白刚玉粉、5‑10％的刚玉微粉、1‑5％的硅微粉、0.2‑0.6％的防爆纤维、0.5‑1％的减水剂、1‑3％的铝酸钙水泥，外加4‑7％的水混合均匀，倒入模具中振动成型；带模具自然养护24小时后脱模，再先后经自然养护2‑3天、200‑250℃烘烤30‑40小时，随炉冷却至室温。本发明炉盖使用寿命长。
Long-life electric furnace cover and preparation method thereof
一种长寿命电炉盖及其制备方法
HU SHUNFENG (author)
2024-11-15
Patent
Electronic Resource
Chinese
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