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铁矿石磁化焙烧时,粒度对质量均匀性的影响已进行过很多研究工作。但由于矿石性质或试验条件不同,亦得出不同的结论。梅根对鞍山赤铁矿的研究中,认为100毫米的块矿可以均匀的进行磁化焙烧,确定采用竖炉。近年来卡尔马金对铁矿石磁化熔烧作过系统的研究,认为致密的铁矿还原时属于带状过程,即表面产生过还原而中心仍然还原不足,工业上磁化焙烧采用的矿石粒度应小于25毫米,用回转炉或沸跳焙烧较有前途。鞍山竖炉目前使用的矿石粒度范围是12—75毫米,是否影响焙烧质量的均匀性尚缺乏可靠的资料。为此利用东
Iron ore magnetization roasting, the impact of particle size on the quality of uniformity has been a lot of research work. However, due to the nature of the ore or test conditions are different, also come to different conclusions. Megan Anshan hematite study, that lump ore 100 mm can be evenly magnetized roasting, to determine the use of shaft furnace. In recent years, Kalmarkin made a systematic study on the magnetization and melting of iron ores. It is believed that the densification of dense iron ores belongs to banded process, that is, the surface is reduced and the center is still not sufficiently reduced. The size of ores used in industrial magnetization roasting should be Less than 25 mm, more promising with rotary kiln or boiling hopper. Anshan shaft furnace ore particle size range currently used is 12-75 mm, whether the impact of the uniformity of the quality of the roasting is still lack of reliable information. East for this purpose