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利用气固两相流数值模拟计算模型 ,分别采用了不同粒径的移动颗粒层过滤除尘器 ,对不同粒径粉尘颗粒的碰撞次数进行统计 ,对移动床除尘中过滤介质尺寸与粉尘粒径尺寸之间的相互选择性进行了初步研究。模拟计算了在同一风速下碰撞次数与粉尘粒径以及移动层颗粒粒径之间的关系。计算统计的结果与实验结果对比发现 ,二者存在定性上的一致。研究结果表明在移动床过滤除尘器中不同粒径的过滤层对不同粒径尘粒具有明显的选择性。
Using the numerical simulation model of gas-solid two-phase flow, the mobile particle filter of different particle size was used respectively to count the number of collisions of dust particles with different particle sizes. The size of the filter medium and the particle size The mutual selectivity between the preliminary study. The relationship between the number of collisions and the dust particle size and the particle size of the moving bed at the same wind speed was simulated. Comparing the calculated results with the experimental results, it is found that the two are qualitatively consistent. The results show that in the moving bed filter dust collector with different particle size of the filter layer of different particle size particles have obvious selectivity.