ISSN 1008-5548

CN 37-1316/TU

2019年25卷  第1期
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流态化低温还原氧化锰矿工艺的特点

Features and advantages of fluidized low-temperature reduction process of manganese oxide ore

Doi:10.13732/j.issn.1008-5548.2019.01.015
作者:邵国强,朱庆山,谢朝晖,邹正,孙昊延,李洪钟


摘要:对中国科学院过程工程研究所设计开发的流态化低温还原氧化锰矿的工艺进行介绍,并与传统高温还原工艺进行对比,分析其优势。结果表明:流态化低温还原氧化锰矿工艺中单位煤耗仅约为传统高温工艺的60%;单台设备的处理能力可达600 t/d;适用于总铁质量分数TFe≤15%、结晶水质量分数低于18%的氧化锰矿;还原过程温度低,副反应少,杂质浸出率低;尾气通过工艺过程的自身反应,无须脱硫、脱硝,可达到国家排放标准。

关键词:流化床;氧化锰矿;低温还原;节能环保

Abstract: The process of fluidized low-temperature reduction manganese oxide ore developed by the Institute of Process Engineering,Chinese Academy of Sciences was introduced.The results show that compared with the traditional high-temperature reduction process,only 60% unit coal is consumed.The output of unit production line can reach 600 t /d.Manganese oxide ore containing total Fe less than 15% and crystal water less than 18% can be used in this process.The reduction reaction is improved by lower temperature and less side reaction. The leaching reaction is improved by lower impurity leaching rate.The tail gas meets national standards without desulfurization and denitration process. 

Keywords: fluidization; manganese oxide ore; low temperature reduction; energy saving and environmental protection