基于小料配料流场的除尘罩结构优化

Structural Optimization of Dust Removal Hood Based on Flow Field of Small Powder Ingredients

基于原有小粉料配料除尘罩(方形)模型,采用计算流体动力学(CFD)仿真方法获取罩体附近流场特征,结合目标参数实现除尘罩几何结构的尺寸优化。结果表明,除尘罩下沿加装长度正好覆盖其与粉尘收集容器间隙的水平挡板,除尘罩下沿与收集容器上沿的垂直间距缩小至40 mm,保持抽吸管道与罩体的接口尺寸不变时,除尘罩除尘效果最佳。

Based on the original dust removal hood(square)model of small powder ingredients,computational fluid dynamics(CFD)simulation method was used to obtain the flow field characteristics near the hood and achieve the size optimization of the geometric structure of the dust removal hood in combination with the target parameters.The results showed that,when the dust removal hood was equipped with a horizontal baffle on the lower edge to cover the gap between the dust removed hood and the dust collection containers,the vertical distance between the lower edge of the dust removal hood and the upper edge of the collection container was reduced to 40 mm,and the interface size between the suction pipe and the hood was kept unchanged,the dedusting effect was the best.