鞍钢技术

超细磁铁矿/赤铁矿混合铁精矿碱性球团制备技术及工业应用

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周明顺 ¹^,² , 田勇 ³ , 侯恩俭 ⁴ , 蒋益 ³ , 赵正洪 ¹^,² , 朱德俊 ⁴ , 杨光 ⁴ , 姜喆 ¹^,²

鞍钢技术 | 专家论坛 2026,(2): 13-23

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鞍钢技术 | 专家论坛 2026, (2): 13-23

超细磁铁矿/赤铁矿混合铁精矿碱性球团制备技术及工业应用

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周明顺¹^,², 田勇³, 侯恩俭⁴, 蒋益³, 赵正洪¹^,², 朱德俊⁴, 杨光⁴, 姜喆¹^,²

作者信息

^1．海洋装备金属材料及其应用全国重点实验室，辽宁鞍山 114009

^2．鞍钢集团钢铁研究院，辽宁鞍山 114009

^3．鞍钢股份有限公司，辽宁鞍山 114021

^4．鞍钢集团矿业有限公司东鞍山烧结厂，辽宁鞍山 114021

周明顺，博士，教授级高级工程师，鞍山钢铁首席专家，主要从事烧结球团与高炉炉料结构研发工作。E-mail: zms4652@163.com

Preparation Technology and Industrial Application of Fluxed Pellets from Ultra-fine Magnetite-hematite Mixed Iron Concentrate

Mingshun ZHOU¹^,², Yong TIAN³, Enjian HOU⁴, Yi JIANG³, Zhenghong ZHAO¹^,², Dejun ZHU⁴, Guang YANG⁴, Zhe JIANG¹^,²

Affiliations

^1.State Key Laboratory of Metallic Materials for Marine Equipment and Applications, Anshan 114009, Liaoning, China

^2.Ansteel Iron & Steel Research Institutes, Anshan 114009, Liaoning, China

^3.Angang Steel Co., Ltd., Anshan 114021, Liaoning, China

^4.Donganshan Sintering Plant of Ansteel Group Mining Co., Ltd., Anshan 114021, Liaoning, China

doi: 10.3969/j.issn.1006-4613.2026.02.002

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摘要

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为实现铁前系统绿色低碳转型，针对鞍钢自产超细磁铁矿/赤铁矿混合精矿粒度极细、成球性差、氧化放热强、焙烧窗口窄、易过热开裂等特殊热行为问题，系统开展原料物化特性表征、造球工艺参数与配矿结构优化、带式焙烧热工制度设计及冶金性能评价研究，形成碱性球团制备成套关键技术。在此基础上，鞍钢集团矿业有限公司东鞍山烧结厂400万t/a带式焙烧机碱性球团生产线实现稳定运行。碱性球团TFe含量约为64.0%、SiO₂含量约为3.80%，碱度稳定在1.0；抗压强度≥2 800 N/P、转鼓强度>92%、还原度>78%、还原膨胀率<12%、低温还原粉化率（RDI_{+3.15 mm}）>90%。按《钢铁行业碳排放核算方法与报告指南（试行）》核算，球团工艺替代原360 m²烧结机后，产品碳排放强度由199.02 kgCO₂/t烧结矿降至40.64 kgCO₂/t球团矿，实现了79.58%的减排效果。该研究为超细混合铁精矿资源制备碱性球团及其低碳应用提供了工程范例。

关键词

超细混合精矿 / 磁铁矿/赤铁矿 / 碱性球团 / 带式焙烧机 / 冶金性能 / 低碳炼铁 / 碳减排

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To achieve the green and low-carbon transformation of the ironmaking system, in response to the special thermal behavior issues of Ansteel's self-produced ultra-fine magnetite-hematite mixed concentrate, such as extremely fine particle size, poor pelletizing property, strong oxidation heat release, narrow roasting window, and easy overheating and cracking, a systematic study was carried out on the characterization of raw material physical and chemical properties, optimization of pelletizing parameters and ore blending structure, design of the straight-grate system, and evaluation of metallurgical properties, and a complete set of key technologies for the preparation of fluxed pellets was formed. On this basis, the 4 million t/a fluxed pellet production line with the straight-grate system in Donganshan Sintering Plant of Ansteel Group Mining Co., Ltd. achieved stable operation. The TFe of the fluxed pellets was approximately 64.0%, the SiO₂ was about 3.8%, and the basicity was stable at 1.0. Compressive strength was ≥ 2 800 N per piece, drum strength was >92%, reduction degree was >78%, reduction expansion rate was <12%, low-temperature reduction pulverization rate (RDI_{+3.15 mm}) was > 90%. According to the "Guidelines for Accounting and Reporting of Carbon Emissions in the Iron and Steel Industry (for Trial Implementation) ", after the pelletizing process replaced the original 360 m² sintering machine, the carbon emission intensity of the product decreased from 199.02 kgCO₂/t sintered ore to 40.64 kgCO₂/t pelletized ore, representing a 79.58% emission reduction. This study provides an engineering example for the preparation of fluxed pellets from ultra-fine mixed iron concentrate resources and their low-carbon application.

Key words

ultra-fine mixed concentrate / magnetite-hematite / fluxed pellets / straight-grate system / metallurgical performance / low-carbon ironmaking / carbon emission reduction

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周明顺, 田勇, 侯恩俭, 蒋益, 赵正洪, 朱德俊, 杨光, 姜喆. 超细磁铁矿/赤铁矿混合铁精矿碱性球团制备技术及工业应用. 鞍钢技术, 2026 , (2) : 13 -23 . DOI: 10.3969/j.issn.1006-4613.2026.02.002

Mingshun ZHOU, Yong TIAN, Enjian HOU, Yi JIANG, Zhenghong ZHAO, Dejun ZHU, Guang YANG, Zhe JIANG. Preparation Technology and Industrial Application of Fluxed Pellets from Ultra-fine Magnetite-hematite Mixed Iron Concentrate[J]. Angang Technology, 2026 , (2) : 13 -23 . DOI: 10.3969/j.issn.1006-4613.2026.02.002

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2026年第卷第2期

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doi: 10.3969/j.issn.1006-4613.2026.02.002

首发时间：2026-06-03

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修回日期：2026-03-18

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作者信息

^1．海洋装备金属材料及其应用全国重点实验室，辽宁鞍山 114009

^2．鞍钢集团钢铁研究院，辽宁鞍山 114009

^3．鞍钢股份有限公司，辽宁鞍山 114021

^4．鞍钢集团矿业有限公司东鞍山烧结厂，辽宁鞍山 114021

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https://castjournals.cast.org.cn/joweb/agjs/CN/10.3969/j.issn.1006-4613.2026.02.002

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2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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