首页> 外文会议>The 18th international drying symposium >MODELING AND SIMULATION OF DRYING OPERATION IN PVC POWDER PRODUCTION LINE:A PNEUMATIC DRYER MODEL
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MODELING AND SIMULATION OF DRYING OPERATION IN PVC POWDER PRODUCTION LINE:A PNEUMATIC DRYER MODEL

机译:PVC粉末生产线中干燥操作的建模与模拟:气动干燥机模型

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摘要

A one-dimensional steady-state model is developed to simulate drying of PVC powder in a pneumatic dryer.In this model,a two-phase continuum model was used to describe the steady-state flow of a dilute dispersed phase (wet PVC powder) and a continuous phase (humid air) through dryer.The particle scale kinetics was obtained by immersion of a fixed mass of wet PVC’s particles (cake) in a batch dense fluidized bed containing inert hot particles (glass bead).The drying kinetics was described by a shrinking core type model and integrated in pneumatic dryer model.The results show that the inlet temperature is the most important parameter in the operation.The drying rate is controlled by a two-stage process.The first stage corresponds to the surface water evaporation,and the second to the pore water evaporation.
机译:建立了一维稳态模型来模拟气动干燥机中PVC粉末的干燥。在​​该模型中,使用两相连续模型描述稀分散相(湿式PVC粉末)的稳态流通过将一定量的湿PVC颗粒(饼)浸入含有惰性热颗粒(玻璃珠)的间歇式密集流化床中,获得颗粒动力学,并描述了干燥动力学。结果表明,入口温度是运行中最重要的参数,干燥速率由两阶段控制,第一阶段对应于地表水蒸发,其次是孔隙水蒸发。

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  • 来源
  • 会议地点 Xiamen(CN)
  • 作者单位

    Université de Toulouse;

    INPT,UPS;

    Laboratoire de Génie Chimique;

    4,Allée Emile Monso,F-31030 Toulouse,France;

    CNRS;

    Laboratoire de Génie Chimique;

    F-31030 Toulouse,France;

    Université de Toulouse;

    INPT,UPS;

    Laboratoire de Génie Chimique;

    4,Allée Emile Monso,F-31030 Toulouse,France;

    CNRS;

    Laboratoire de Génie Chimique;

    F-31030 Toulouse,France;

    Université de Toulouse;

    INPT,UPS;

    Laboratoire de Génie Chimique;

    4,Allée Emile Monso,F-31030 Toulouse,France;

    CNRS;

    Laboratoire de Génie Chimique;

    F-31030 Toulouse,France;

    INEOS - Société Artésienne de Vinyle,Chemin des soldats 62670 Mazingarbe,France;

    INEOS - Société Artésienne de Vinyle,Chemin des soldats 62670 Mazingarbe,France;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 空气处理;
  • 关键词

    pneumatic dryer; PVC; shrinking core; kinetic; model;

    机译:气动干燥机; PVC;收缩芯;动力学;型号;

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