摘要
铝热法生产钨铁产生大量烟尘料,烟尘料回收量较大,为物料量的0.8%~1.2%,烟尘料中含有氧化钨,不加以处理会造成资源浪费,但是烟尘料中WO_3含量低,自发热量不能满足钨铁冶炼所需的热量,并且烟尘中的杂质元素不同于钨矿和氧化钨中的元素分布。因此工艺试验在采用铝热法冶炼过程中,通过控制合适的反应热量,调整合适的渣系等研究手段和措施将烟尘料生产为合格的钨铁合金。
Thermit method ferrotungsten process produces a large amount of dust material, 0.8%-1.2% of the amount of the materials. The dust material recycling volume is larger. The dust material contains tungsten oxide. If not treated properly it will result in a waste of resources. But WO3 content in dust material is low. Its calorific capacity can＇ t meet the demand to smelt ferrotungsten. Also the impurity elements in the smoke don＇ t distribute as that in tungsten ore and tungsten oxide. This paper introduces the test of producing ferrotungsten by aluminothermy. In the process test, it can produe qualified ferrotungsten through controlling proper reactive temperature and adjusting the suitable slag system and so on.
出处
《铁合金》
2017年第2期15-18,共4页
Ferro-alloys
关键词
铝热法
烟尘料
渣系
热量
aluminothermy, soot material, slag series, reaction heat
