In northern China,the winter is long and the temperature is low,iron concentrate with ultra-low moisture is generally used for pellet production,but its pelletizing performance is poor.And the existing warm bin soaking pre-wetting process has a long process flow and large moisture fluctuation.Therefore,based on the systematic study of the influence of iron concentrate moisture on pelletizing performance,an intensive mixer is introduced for pre-wetting and mixing.The results show that the intensive mixing can significantly improve the pre-wetting effect and increase the strength of green balls,and the appropriate mixture moisture and bentonite consumption are reduced by 0.5%and 0.2%respectively.The process is shortened and the production efficiency is improved.
关键词
超低水分铁精矿/强力混合/造球性能
Key words
iron concentrate with ultra-low moisture/intensive mixing/pelletizing performance
维普
万方数据