Reducing wear on rotary coal pulverisers

该项目的目的是了解小规模的流动和颗粒破碎，以便对格莱斯顿发电站的36台磨煤机的磨损阶段进行优化重新设计，由于侵蚀磨损，目前每年的维护预算为400万美元。空气和颗粒流的CFD-DEM模拟将用于确定颗粒流模式、颗粒-颗粒和颗粒-壁碰撞能量。这些信息将输入粉碎和磨损模型，以预测粉碎机的性能和磨损模式。模拟结果将使用规模可视化和工作模型的测量进行验证。

The aim of this project is to develop an understanding of the small-scale flows and particle breakage required to permit optimised redesign of the attrition stage of the 36 coal pulverisers at Gladstone Power Station, which, because of erosive wear, currently have a maintenance budget of $4M per year. CFD-DEM simulation of the air and particle flows will be used to determine particle flow patterns, particle-particle and particle-wall impact energies. This information will be input to comminution and wear models to predict pulveriser performance and wear patterns. Simulation results will be validated using measurements from scale visualisation and working models.