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Technology for Pellet Quality Improvement Based on Intensive Mixing of Iron Concentrates
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Ying YU1, Shaochun LI2, Yanqing DU1, Zhiyun JI3, Xiaohui FAN3, Jianjun SHI1, Min GAN3, Xiaolong WANG3, Yi LIU3, Xingyang WENG2, Naiyi PEI1
Mining and Metallurgical Engineering | 2026, 46(4) : 158 - 162
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Mining and Metallurgical Engineering | 2026, 46(4): 158-162
• METALLURGY •
Technology for Pellet Quality Improvement Based on Intensive Mixing of Iron Concentrates
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Ying YU1, Shaochun LI2, Yanqing DU1, Zhiyun JI3, Xiaohui FAN3, Jianjun SHI1, Min GAN3, Xiaolong WANG3, Yi LIU3, Xingyang WENG2, Naiyi PEI1
Affiliations
  • 1.Ansteel Mining Gongchangling Co., Ltd., Liaoyang 111008, Liaoning, China
  • 2.Ansteel Mining Co., Ltd., Anshan 114000, Liaoning, China
  • 3.School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, Hunan, China
doi: 10.3969/j.issn.0253-6099.2026.04.024
Outline
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Aiming at the differences in physic-chemical properties of various iron concentrates and the difficulty in fully eliminating raw-material fluctuation by conventional dry blending, a technique of wet mixing combined with intensive mixing was adopted, and its effect on mixture homogeneity and pellet properties were investigated. The results show that wet mixing for 3 min can greatly improve the homogeneity of TFe, FeO and-0.074 mm fraction content in the mixed iron concentrates. After 3 min wet mixing and 40 s intensive mixing, the mixture has each homogeneity index basically equivalent to that after 60 s independent intensive mixing. The obtained green pellets have the compressive strength and drop strength improved by 12.17% and 13.95%, respectively, and preheated pellets and fired pellets have the compressive strength up by 7.64% and 10.63%, respectively, compared to that after raw material is just processed with 40 s intensified mixing without wet mixing. Meanwhile, the fluctuations in various pellet properties are remarkably reduced. It is concluded that this process can improve the homogeneity of various iron concentrates at the source and shorten the intensive mixing time, which provides technical support for quality improvement and stable operation in pelletization.

pellet  /  iron concentrate  /  homogeneity index  /  compressive strength  /  quality improvement  /  ore blending  /  ore mixing
余莹, 李绍春, 杜艳清, 季志云, 范晓慧, 施建军, 甘敏, 王晓龙, 刘燚, 翁兴洋, 裴乃义. 基于铁精矿强化混匀的球团矿提质技术研究. 矿冶工程杂志, 2026 , 46 (4) : 158 -162 . DOI: 10.3969/j.issn.0253-6099.2026.04.024
Ying YU, Shaochun LI, Yanqing DU, Zhiyun JI, Xiaohui FAN, Jianjun SHI, Min GAN, Xiaolong WANG, Yi LIU, Xingyang WENG, Naiyi PEI. Technology for Pellet Quality Improvement Based on Intensive Mixing of Iron Concentrates[J]. Mining and Metallurgical Engineering, 2026 , 46 (4) : 158 -162 . DOI: 10.3969/j.issn.0253-6099.2026.04.024
Appendix
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Year 2026 volume 46 Issue 4
106
18
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Article Info
doi: 10.3969/j.issn.0253-6099.2026.04.024
  • Receive Date：2026-03-10
  • Online Date：2026-10-08
Article Data
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History
  • Received：2026-03-10
Funding
Affiliations
    1.Ansteel Mining Gongchangling Co., Ltd., Liaoyang 111008, Liaoning, China
    2.Ansteel Mining Co., Ltd., Anshan 114000, Liaoning, China
    3.School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, Hunan, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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