Theoretical and experimental investigation on the effect of biomass injection on the utilization factor of pulverized coal and the raceway state in blast furnace

被引：3

作者：

Dang, Han ^{[1
]}

Xu, Runsheng ^{[1
]}

Zhang, Jianliang ^{[1
,2
]}

Wang, Mingyong ^{[1
]}

Shi, Jinpeng ^{[1
]}

Zhang, Jinyin ^{[1
]}

He, Xiaoxia ^{[1
]}

Jia, Guoli ^{[3
]}

Hu, Zefang ^{[4
]}

Zhao, Dongming ^{[5
]}

机构：

[1] Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China

[2] Univ Queensland, Sch Chem Engn, St Lucia, Qld 4072, Australia

[3] Technol Res Inst Shougang Grp Co LTD, Shougang Grp Co LTD, Hebei 050011, Peoples R China

[4] Ningbo Iron & Steel Co LTD, Hangzhou 315000, Peoples R China

[5] Angang Steel Co LTD, Angang Steel Grp Co LTD, Liaoning 114021, Peoples R China

来源：

FUEL | 2024年 / 375卷

关键词：

Biomass injection; Blast furnace dust; Petrographic analysis; Utilization factor of pulverized coal; Industrial practice; COMBUSTION; IRON; OPPORTUNITIES; PRETREATMENT; TEMPERATURE; BEHAVIOR; KINETICS; DUST; COKE;

D O I：

10.1016/j.fuel.2024.132550

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The study at Capital Steel Co.'s 2650 m3 blast furnace (BF) explores the impact of biomass injection technology on the utilization factor (UF) of pulverized coal and the state of the BF raceway. It was divided into three phases: base, trial, and comparison, with a thorough assessment of the effects of biomass injection through various analyses. During the trial stage, the UF of pulverized coal rose significantly to 97.57 %, exceeding that of the base and comparison phases. Petrographic analysis revealed a change in the morphology ratio between unconsumed pulverized coal and coke post-biomass injection. Tuyere imaging captured the enhanced dispersion of fuel particles and a reduction in flame intensity due to biomass, providing visual proof of its impact on combustion. Although the theoretical flame temperature (TFT) experienced a slight decrease, it still had a positive thermal effect, mainly due to the increased BF gas volume resulting from the high hydrogen content in biomass. These results support the integration of biomass in the steel industry, advancing sustainable ironmaking methods.

引用

页数：13

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