摘要:
在1 500℃的增碳温度下,分别利用石墨、焦炭、碳粒、低氮增碳剂、无烟煤等五种增碳剂对含钒铁水进行增碳试验,结果显示,石墨和低氮增碳剂的增碳效果最好,碳粒和无烟煤次之,焦炭最差。同时,分别在1 550℃和1 450℃时进行了低氮增碳剂、无烟煤、焦炭的增碳试验,试验表明:增加温度可提高增碳剂的增碳速率,从而改善增碳剂的增碳效果。通过综合分析认为无烟煤最适宜于含钒铁水的增碳处理,在1450~1 550℃的温度下,温度越高越有利于增碳。
关键词:
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含钒铁水 /
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增碳 /
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增碳剂 /
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无烟煤
Abstract:
Five kind of recarburizers,namely,graphite,coke,carbon granule,low nitrogen recarburizer and anthracite are used for carbonization of vanadium-containing hot metal at temperature of 1 500℃.It is found out that graphite and low nitrogen recarburizer are the best,followed by carbon granule and anthracite,but the carburization effect of coke was the weakest.At the same time,low nitrogen recarburizer,anthracite and coke are used for carbonization experiment at temperature of 1 550℃ and 1 450℃ respectively,which demonstrate that higher temperature improves carbonization of the Vanadium-containing hot metal by increasing carburizing rate.It can be concluded that the most economical effective recarburizer is anthracite and that higher temperature favors for carbonization among temperature from 1 450℃ to 1 550℃.
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