کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
238425 465757 2009 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modelling breakage and reagglomeration during fine dry grinding in ball milling devices
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Modelling breakage and reagglomeration during fine dry grinding in ball milling devices
چکیده انگلیسی

Modelling of grinding of fine powders in ball milling devices is addressed. The model quantitatively describes breakage and agglomeration phenomena by considering two populations, i.e. primary particles and porous aggregates. The population balance approach takes into account breakage and aggregation kernels which are considered functions of the size of the two populations. The proposed model is able to properly simulate the inversion from the breakage to the agglomerative regime typical of a fragile material powder system undergoing ball milling. A suitable fitting procedure is performed for separately determining the adjustable parameters of the model. Model reliability is tested against experimental data, while the proposed breakage/agglomeration kernels are related to the quantitative description of ball milling apparatus dynamics.

A Population Balance approach is used to model breakage and agglomeration phenomena during grinding of fine powders in ball milling devices. A suitable fitting procedure is performed for separately determining the adjustable parameters. Model reliability is tested against experimental data, while the proposed breakage/agglomeration kernels are related to the quantitative description of ball milling apparatus dynamics.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Powder Technology - Volume 194, Issue 3, 15 September 2009, Pages 207–216
نویسندگان
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