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首页> 外文会议>The 4th Australia-China-Japan joint symposium on iron and steelmaking >CFD Modelling of Slag Atomisation by Spinning Disc
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CFD Modelling of Slag Atomisation by Spinning Disc

机译：旋转盘渣雾化的CFD建模

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A novel dry slag granulation (DSG) process based on a spinning disc is being developed by CSIRO Minerals Down Under National Research Flagship.This process utilises the centrifugal force to break up molten slag into droplets,which are quenched and solidified with air to produce glassy products for cement manufacture and at the same time to recover the sensible heat of slag.The integrated DSG and heat recovery process has been successfully demonstrated at a pilot plant scale with throughputs up to 5 t/h.CFD modelling tool has been used to simulate the DSG process steps including slag atomisation at the spinning disc,slag droplet collision with walls,air delivery and interactions with slag droplets/granules as well as droplet quenching and heat exchange in a complex and dynamic process.CFD modelling has played a key role in process design,optimisation and scale up.The present paper provide a brief overview of CFD modelling carried out on slag atomisation by a spinning disc,involving two multiphase CFD models: a steady-state and two-dimensional model for molten slag spreading on the disc to predict slag film thickness and a transient three-dimensional model for the breakup of the slag film and droplet formation.
机译：CSIRO Minerals Down在国家研究总署的领导下，正在开发一种基于旋转圆盘的新型干渣制粒（DSG）工艺。该工艺利用离心力将熔融炉渣分解成液滴，然后通过空气将其淬火并固化，从而产生玻璃状用于水泥生产并同时回收炉渣显热的产品。已经在中试规模成功证明了DSG和热量回收的集成过程，产量高达5 t / h.CFD建模工具已用于模拟DSG工艺步骤包括旋转盘上的炉渣雾化，炉渣液滴与壁的碰撞，空气输送以及与炉渣液滴/颗粒的相互作用以及在复杂而动态的过程中的炉渣淬火和热交换.CFD建模在以下过程中发挥了关键作用工艺设计，优化和按比例放大。本文简要概述了通过旋转圆盘对矿渣雾化进行的CFD建模，包括两个多相CFD模型：用于熔融渣在圆盘上扩散以预测渣膜厚度的稳态和二维模型，以及用于渣膜破裂和液滴形成的瞬态三维模型。

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