In the fluidization process of nylon powder, maintaining a uniform flow of powder in the feed silo is crucial to reduce powder agglomeration and facilitate the fluidization process. In this study, BINSERT was applied to improve the flow properties of powder in the feeding silo. The discharge process of nylon powder in silos equipped with different dip angles of BINSERT was simulated using discrete element method (DEM). The DEM model considered fine-scale van der Waals forces, and a novel slicing method was employed to simplify the DEM model. The effect of BINSERT on powder flow behavior was systematically analyzed. The results indicate that the powder exhibits a more uniform velocity distribution as the BINSERT dip angle increases. The flow pattern gradually transitions from Funnel flow to Mass flow. Furthermore, the installation of BINSERT improves the pressure distribution on the silo walls, enhancing the reliability of the silo.

在尼龙粉末的流化过程中，保持料仓内粉末的均匀流动对于减少粉末结块、促进流化过程至关重要。在这项研究中，BINSERT 用于改善进料仓中粉末的流动特性。采用离散元法（DEM）对不同倾角BINSERT筒仓内尼龙粉的卸料过程进行了模拟。DEM 模型考虑了精细尺度的范德华力，并采用了一种新颖的切片方法来简化 DEM 模型。系统分析了 BINSERT 对粉末流动行为的影响。结果表明，随着 BINSERT 倾角的增加，粉末表现出更均匀的速度分布。流型逐渐从漏斗流过渡到质量流。此外，BINSERT 的安装改善了筒仓壁上的压力分布，从而提高了筒仓的可靠性。