捕集颗粒对并流移动床过滤器的特性起着至关重要的作用。本研究评估了两种平

捕集颗粒对并流移动床过滤器的特性起着至关重要的作用。本研究评估了两种平均粒径相近但粒径分布不同的捕集颗粒。捕集颗粒的粒径分布是影响滤膜空隙率的主要因素，空隙率是滤膜的关键结构参数，影响滤膜的过滤性能。对MBGF-CF进行了冷模型实验，结果表明，在相同的操作条件下，即使采用两种不同的捕集颗粒，该过滤器的过滤性能是一致的。应用低表观气速或低颗粒移动速度对过滤效率有显着的增效作用。实验还发现，在表观气速0.126m/s和粒子移动速度2.05mm/s时，MBGF-CF的收集效率最高。

The capture of particles plays an important role in the characteristics of cocurrent moving bed filter. In this study, two kinds of trapped particles with similar average particle size but different particle size distribution were evaluated. The particle size distribution of captured particles is the main factor affecting the porosity of filter membrane. Porosity is the key structural parameter of filter membrane and affects the filtration performance of filter membrane. The cold model experiment of mbgf-cf is carried out. The results show that under the same operating conditions, even if two different capture particles are used, the filtration performance of the filter is consistent. The application of low apparent gas velocity or low particle moving velocity has a significant synergistic effect on the filtration efficiency. It is also found that the collection efficiency of mbgf-cf is the highest when the apparent gas velocity is 0.126m/s and the particle moving velocity is 2.05mm/s.

The trapped particles play an important role in the characteristics of cocurrent moving bed filter. In this study, two kinds of trapped particles with similar average particle size but different particle size distribution were evaluated. The particle size distribution of trapped particles is the main factor affecting the porosity of the filter membrane, and the porosity is the key structural parameter of the filter membrane, which affects the filtration performance of the filter membrane. The cold model experiment of MBGF-CF shows that under the same operating conditions, the filtering performance of the filter is the same even if two different kinds of trapped particles are used. The application of low superficial gas velocity or low particle moving velocity has significant synergistic effect on filtration efficiency. It is also found that the collection efficiency of MBGF-CF is the highest when the apparent gas velocity is 0.126m/s and the particle moving velocity is 2.05 mm/s.