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本文分别阐述了低温固结球团及其直接还原的工艺与理论研究、与高温氧化焙烧球团或块矿直接还原相比，在冶金性能上具有优异的特性，为强化煤基直接还原开拓了新的途径。
In this paper, the technology and theory of cryogenic solidified pellets and their direct reduction are described respectively. Compared with the direct reduction of high temperature oxidized pellets or lumps, they have excellent properties in metallurgical properties and opened up the way to strengthen coal-based direct reduction New way.