进口富锰矿冶炼高炉锰铁[Si]低原因的研究

RESEARCH ON THE REASON OF Si LOWER BY USING OF IMPORT RICH ORE TO SMELT BLAST FURNACE FERROMANGANESE

高炉锰铁中的硅来自焦炭灰分和部分锰渣中的SiO2。硅还原过程为SiO2-SiO-[Si]。使用高Mn低SiO2的进口富锰矿,因其焦比低渣量少,造成锰铁[Si]低,因此它不仅提高锰含量而且提高货物等级。

Silicon resource comes from coke ash and parts of SiO2 in manganese slag. Silicon reducts to SiO2 - SiO - [ Si] . Import manganese - rich ore, which is rich in manganese and poor in SiO2, leads to coke rate lower and slag less. This is why silicon low in ferromanganese. It raises not only manganese grade but also its level.