Effect of microwave heat hardening on microstructure and strength of coke composed iron ore pellet
Effect of microwave heat hardening on microstructure and strength of coke composed iron ore pellet
复制标题
微波加热硬化对焦炭铁矿石球团组织和强度的影响
DOI：
10.1016/j.matpr.2020.02.267
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
S. Pan
中科院分区：
文献类型：
--
作者：
R. Prasad;R. Venugopal;L.A. Kumarswamidhas;S. Pan
铁矿球团矿与块矿、烧结矿一起作为高炉原料。由于其粒度范围均匀，使用矿粉，物理性能良好。在球团矿生产过程中，生球与焦粉混合加热，通过常规加热和微波加热获得机械强度。研究了加热类型对强度 (CCS) 和表面形态的影响，以研究适合工业应用的关键变量。通过 SEM 研究了两种加热过程中微观结构的形成，并通过 XRD 技术对副产物的减少进行了相发生和定量分析。结果表明，还原温度和时间取决于加热方法。通过微波加热获得了更精细和多孔的结构，这提高了产品的还原性，而常规加热则支持颗粒强度的物理性能。
Iron ore pellets are used as feed stock of blast furnace with lump and sinter. Due to their uniform size range, uses ore fines, good physical properties. During the production of pellets, green ball with coke powder mix heated to get mechanical strength by conventional heating and microwave heating has been incorporated in this paper. The effect of both type of heating over strength (CCS) and surface morphology was studied to investigate the appropriate key variables for industrial application. Microstructure formation during both types heating process has been investigated by SEM and phase occurrence and quantitative analysis has been done for reduction by product by XRD technique. The results reveal that the reduction temperature and time depend on method of heating. The finer and porous structure were obtained with microwave heating which promote reducibility of product and conventional heating support the pellets strength for its physical properties.
影响因子：
1.8
作者：
Ishizaki, Kotaro;Nagata, Kazuhiro
通讯作者：
Nagata, Kazuhiro