钢渣在微波场中还原脱磷的工艺

Technologic Research of on Dephosphorization of Converter Slag by Microwave Heating

在1100-1400℃温度内,利用微波加热方式对转炉钢渣的碳热还原行为进行研究。结果表明,钢渣和无烟煤粉是微波的良吸收体,钢渣在微波场中经碳还原可得到直径为10-20 mm的Fe-C合金。研究了脱磷率高低与碳当量、温度以及保温时间之间的关系。在低温条件下实现了钢渣的还原脱磷,脱磷率平均可达到85%。

From 1100℃ to 1400℃,the research focused on the treatment of steelmaking slag to recover phosphorus by carbon carried out in a microwave heating furnace.The result indicates that the slag were mixed with graphite powder and heated to a temperature on 1300℃ to precipitate a lump of Fe-C alloy with a diameter of 10~20mm.It research the relationship between the dephosphorization and variables which are carbon equivalent,temperature and processing time.The experimental research determined that the microwave heating expedites the reduction,leads to dephosphorization on a low temperature.The dephorization rate by reduced slag can reach to 85%.