超高料层烧结矿低温还原粉化性能及其影响因素研究

赵玉潮; 姜文政; 钟强; 李光辉; 姜涛

doi:10.11817/j.issn.1672-7207.2026.03.001

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超高料层烧结矿低温还原粉化性能及其影响因素研究

矿业工程 • 冶金工程 • 环境工程 • 化学与化学工程 • 材料科学与工程 | 更新时间：2026-05-19

- 超高料层烧结矿低温还原粉化性能及其影响因素研究
- Low-temperature reduction disintegration performance and its influencing factors of ultra-high layer iron ore sintering
- 中南大学学报(自然科学版) 2026年57卷第3期页码：975-987
- 作者机构：
  
  1.中南大学资源加工与生物工程学院，湖南长沙，410083
  2.山东钢铁集团有限公司，山东济南，250100
- 作者简介：
  
  钟强，博士，副教授，从事铁矿烧结球团、二次资源综合利用等研究；E-mail：zhongqiang@csu.edu.cn
- 基金信息：
  
  国家自然科学基金资助项目(52274290);国家重点研发计划项目(2022YFC3900904)
- DOI：10.11817/j.issn.1672-7207.2026.03.001
  中图分类号： TF046
- 收稿：2025-07-10，
  
  修回：2025-09-05，
  
  纸质出版：2026-03-26
- 稿件说明：
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赵玉潮, 姜文政, 钟强, 等. 超高料层烧结矿低温还原粉化性能及其影响因素研究[J]. 中南大学学报(自然科学版), 2026, 57(3): 975-987.

ZHAO Yuchao, JIANG Wenzheng, ZHONG Qiang, et al. Low-temperature reduction disintegration performance and its influencing factors of ultra-high layer iron ore sintering[J]. Journal of Central South University(Science and Technology), 2026, 57(3): 975-987.
赵玉潮, 姜文政, 钟强, 等. 超高料层烧结矿低温还原粉化性能及其影响因素研究[J]. 中南大学学报(自然科学版), 2026, 57(3): 975-987. DOI： 10.11817/j.issn.1672-7207.2026.03.001.

ZHAO Yuchao, JIANG Wenzheng, ZHONG Qiang, et al. Low-temperature reduction disintegration performance and its influencing factors of ultra-high layer iron ore sintering[J]. Journal of Central South University(Science and Technology), 2026, 57(3): 975-987. DOI： 10.11817/j.issn.1672-7207.2026.03.001.

摘要

针对超高料层烧结存在产品低温还原粉化性能恶化问题，本文对国内典型超高料层烧结生产的成品烧结矿进行系统解析，分析烧结矿的主要化学成分、物相组成、矿相结构及低温还原粉化指数

的变化规律，研究烧结矿FeO、主要物相、孔隙率及还原后裂纹密度等与粉化指数

的内在联系。研究结果表明：沿料层高度方向，从上层到下层，烧结矿的(粒度大于等于3.15 mm的物料所占的质量分数)

DI+3.15

由79.75%降低至76.5%，(粒度小于0.5 mm的物料所占的质量分数)

DI-0.5

由5.75%上升至13.0%；赤铁矿质量分数呈上升趋势，磁铁矿质量分数减小，料层底部铁酸钙质量分数较低；烧结矿FeO质量分数、赤铁矿质量分数和孔隙率影响其

；沿料层高度向下，烧结矿赤铁矿质量分数增加，FeO质量分数和孔隙率降低，烧结矿低温还原粉化性能恶化，还原后烧结矿裂纹率增加。

Abstract

Consider

ing that in ultra-high layer sintering

there exists the deterioration problem of low-temperature reduction disintegration performance

a systematic analysis of the finished sinters produced by the typical domestic ultra-high layer was studied

and the change rule of the main chemical composition

physical phases

mineralogical structure and

were analyzed. Furthermore

the intrinsic correlations between FeO content

major phases

porosity

crack density after reduction and

were investigated. The results show that along the layer height direction

from the upper layer to the lower layer

the

DI+3.15

index of sinter decreases from 79.75% to 76.5%

the

DI-0.5

index increases from 5.75% to 13.0%. Concurrently

the hematite content increases

the magnetite content decreases

and the calcium ferrite content is observed to be lower at the bottom of the bed. The FeO content

hematite content and porosity of the sinters are identified as the main factors influencing its

. Along the height of the material layer downward

the content of hematite in sinter increases

the content of FeO and porosity decreases

the low-temperature reduction disintegration performance is deteriorated

and the crack rate of sinter increases after reduction.

关键词

Keywords

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