内配碳冷固球团-电炉冶炼工艺处理贫锰矿的试验研究

针对贫锰矿石,采用内配碳冷固球团-电炉冶炼工艺流程,成功制取了合格的富锰渣。还原焙烧温度1000℃,还原时间45min,原矿粒度-1mm,还原剂用量1.6%,碱度0.3,冶炼温度1410℃,冶炼时间60min,在此条件下,渣相与金相熔分较好,渣相中Mn含量为32.58%,锰的回收率为92.16%;金相中Fe含量为94.40%,铁的回收率为95.32%,并通过验证试验得到证实。

A STUDY OF CARBON-BURDENED AND COLD-BONDED PELLETS-ELECTROSMELTING PROCESS DISPOSING LOW-GRADE MANGANESE

The carbon-burdened and cold-bonded pellets-electrosmelting process is used to dispose low-grade manganese, and the qualified rich-manganese slag is obtained.Reduction roasting temperature was 1 000℃,reduction time was 45 min, particle-size was-1mm,reductant dosage was 1.6%,basicity was 0.3,smelting temperature was 1 410℃,smelting time was 60 min.On the condition,it had a good effect on the melting between slag and metallographic phase,the manganese content was 32.58%,manganese recovery was 92.16%in the slag;while the iron content was 94.40%,iron recovery was 95.32%in the metallographic phase.It was proved by the demonstration tests.