Effect of combined ferrous burden composition and ore-coke interaction on blast furnace burden distribution

IF 4.5 2区工程技术 Q2 ENGINEERING, CHEMICAL

Powder Technology Pub Date : 2024-11-03 DOI:10.1016/j.powtec.2024.120416

Xiaohui Zhang , Nan Wang , Zongyan Zhou , Zeyao Ning , Min Chen

引用次数: 0

Abstract

The distribution of burden materials at the blast furnace throat is highly correlated with the combined ferrous burden with different mass percentages of sinter, pellet, and lump ore. In this work, the motion behavior of the burden particles was studied under different combined ferrous burden composition, and an analysis was conducted on the cooperative influence of the combined ferrous burden composition and ore-coke interaction on the burden distribution characteristics. The results indicate that the particle flow trajectory is stable when the total mass fraction of pellet and lump ore is less than 32 %. Central coke charging can minimize the radial segregation of the combined ferrous burden. At the ore-coke layer interface, the accumulation and percolation behaviors of ore particles are observed. When the pellet ratio is high, the ore particles can easily penetrate into the void structure of the coke layer.

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综合铁料成分和矿石-焦炭相互作用对高炉炉料分布的影响

高炉喉部的炉料分布与烧结矿、球团矿和块矿不同质量百分比的综合铁料高度相关。本文研究了不同综合铁料成分下的炉料颗粒运动行为，并分析了综合铁料成分和矿石-焦炭相互作用对炉料分布特征的协同影响。结果表明，当球团矿和块矿的总质量分数小于 32% 时，颗粒的流动轨迹是稳定的。焦炭的集中装填可以最大程度地减少铁矿石结合料的径向偏析。在矿石-焦炭层界面，观察到矿石颗粒的堆积和渗流行为。当球团比高时，矿石颗粒很容易渗入焦炭层的空隙结构中。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Powder Technology 工程技术-工程：化工

CiteScore

9.90

自引率

15.40%

发文量

1047

审稿时长

46 days

期刊介绍： Powder Technology is an International Journal on the Science and Technology of Wet and Dry Particulate Systems. Powder Technology publishes papers on all aspects of the formation of particles and their characterisation and on the study of systems containing particulate solids. No limitation is imposed on the size of the particles, which may range from nanometre scale, as in pigments or aerosols, to that of mined or quarried materials. The following list of topics is not intended to be comprehensive, but rather to indicate typical subjects which fall within the scope of the journal's interests: Formation and synthesis of particles by precipitation and other methods. Modification of particles by agglomeration, coating, comminution and attrition. Characterisation of the size, shape, surface area, pore structure and strength of particles and agglomerates (including the origins and effects of inter particle forces). Packing, failure, flow and permeability of assemblies of particles. Particle-particle interactions and suspension rheology. Handling and processing operations such as slurry flow, fluidization, pneumatic conveying. Interactions between particles and their environment, including delivery of particulate products to the body. Applications of particle technology in production of pharmaceuticals, chemicals, foods, pigments, structural, and functional materials and in environmental and energy related matters. For materials-oriented contributions we are looking for articles revealing the effect of particle/powder characteristics (size, morphology and composition, in that order) on material performance or functionality and, ideally, comparison to any industrial standard.