Evaluation of Tensile Adhesion Strength in Simulated Dust Cakes on Fabric Filters,Chemical Engineering & Technology

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Evaluation of Tensile Adhesion Strength in Simulated Dust Cakes on Fabric Filters
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-12-07 , DOI: 10.1002/ceat.201900541
Qian Zhang ₁ , David Horst ₁ , Eberhard Schmidt ₁

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Based on the results of a 3D simulation of cake formation on characteristic filter models for fabric filters with different surface structure, the tensile adhesion strengths in simulated dust cakes are evaluated on the basis of the resulting inhomogeneous local porosity distribution of the particle packing by calculating fracture points at a balance between adhesion and detaching strengths. Both the evaluation method itself and the evaluation results for a computation example are presented and discussed. A significant proportion of fracture points are found in deeper levels in the filter medium, and the distribution of tensile adhesion strengths there differs strongly from the distributions in top levels of the filter medium. The fracture points in the top layer of the filter medium, where a special surface texture is generated, can contribute a considerable part of the tensile adhesion strengths over the whole filter area.

中文翻译：

织物过滤器上模拟粉尘饼的拉伸粘合强度评估

根据在具有不同表面结构的织物过滤器的特征过滤器模型上对滤饼形成的3D模拟结果，基于颗粒填料的不均匀局部孔隙度分布，通过计算断裂，评估模拟粉尘饼中的拉伸粘附强度在附着力和剥离强度之间达到平衡。给出并讨论了评估方法本身和计算示例的评估结果。在过滤介质的更深层中发现了很大比例的断裂点，并且那里的拉伸粘合强度的分布与在过滤介质的最高层中的分布有很大差异。过滤介质顶层的断裂点会产生特殊的表面纹理，

更新日期：2021-01-20

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