铁微球辅助下CuO流化还原过程中团聚体粒径预测的能量平衡模型

IF 4.6 2区工程技术 Q2 ENGINEERING, CHEMICAL

Powder Technology Pub Date : 2025-09-10 DOI:10.1016/j.powtec.2025.121635

Da Li , Xue Xue , Qingshan Zhu , Jun Li , Hongzhong Li

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引用次数: 0

摘要

由于以往的流化和团聚模型无法描述微球的加入对超细粉末流化的增强，本文提出了一种新的能量平衡模型，结合团聚体与铁微球之间的碰撞概率来阐明强化机制并预测团聚体尺寸。强化效应主要是由空间隔离效应和铁微球与团聚体之间的碰撞效应造成的。计算得到的团聚体粒径与实验数据吻合较好。该模型可为流化床中微球的添加和团聚体的调控提供指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

A energy balance model for predicting agglomerate size during the fluidization reduction of CuO with the assistance of Fe microspheres

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A energy balance model for predicting agglomerate size during the fluidization reduction of CuO with the assistance of Fe microspheres

Since the previous fluidization and agglomeration models failed to describe the enhanced fluidization of ultrafine powders with the addition of microspheres, a novel energy balance model coupled with collision probabilities between agglomerates and Fe microspheres has been proposed to elucidate the intensification mechanism and to predict the agglomerate size. The intensification effects are mainly attributed to the spatial isolation and the collision effects between Fe microspheres and agglomerates. Furthermore, the calculated agglomerate sizes agree well with the experimental data. The model can provide a guidance for the addition of microspheres and the regulation of agglomerates in the fluidized bed.

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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.