特种纤维气流成网机尘笼结构优化设计分析

Optimum Design and Analysis of the Dust Cage Structure of Special Fiber Air-laid Machine

为了解决现有气流成网机气流、棉层不均匀等问题,详细介绍了气流成网机构中尘笼的三维构造模型和支撑方式,重点对尘笼表面小孔的几何尺寸进行设计,从确定尘笼内部压力进而建立气流特性参数。指出:设计的特种纤维气流成网机的尘笼结构,能保证气流均匀、成网均匀;建立尘笼结构的空气动力学模型,确定小孔气流速度和临界气流速度的关系以及尘笼结构的最佳小孔数,保证尘笼正常工作。

To solve the existing problem with air-laid machine regarding non-uniform of airflow and cotton layer,introduction is done to the model of 3 Dstructure and air support mechanism in the cage.Highlight is given to the key dimension of the hole on the surface of the design of the cage and characteristic parameters are determined from the cage internal pressure flow.It is pointed out that the designed cage structure guarantees uniform airflow and cotton layer.The aerodynamics model of the cage structure determines the relationship between pore flow velocity and critical gas flow velocity and optimum holes of the cage,ensuring the normal operation of the cage.