Solid particle erosion mechanisms in ceramic and polymer filled epoxy coatings for flue gas ducting and cyclone applications

用于烟气管道和旋风分离器应用的陶瓷和聚合物填充环氧涂层中的固体颗粒侵蚀机制

• 批准号: 494082-2016
• 负责人: Papini, Marcello
• 金额: $ 1.82万
• 依托单位: Ryerson University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=602987
• 关键词: Solid; particle; erosion; mechanisms; ceramic

Coatings are widely used to protect ducts and cyclones used in the treatment of flue gases released due to combustion processes in furnaces, boilers, and steam generators used in, e.g., power generation applications. Such gases are contain fly ash particulates whose constituents vary depending on the application, but are generally mostly in the form of 5-300 um aluminum oxide, silicon dioxide, or calcium oxide particles. Cyclones are often used to remove these particulates, as a first 'precleaning' step to flue gas treatment. In such devices, the gas is accelerated in a spiral vortex and the larger particles are carried by their inertia to the cylone wall, eventually dropping into a conical collection hopper.

涂料广泛用于保护在处理由于炉、锅炉和蒸汽发生器中的燃烧过程而释放的烟道气中使用的管道和旋风分离器，发电应用。这种气体含有飞灰颗粒，其成分根据应用而变化，但通常主要是5-300 μ m氧化铝、二氧化硅或氧化钙颗粒的形式。旋风分离器通常用于去除这些颗粒，作为烟气处理的第一个“预清洁”步骤。在这种装置中，气体在螺旋涡流中加速，较大的颗粒被惯性带到旋风筒壁，最终落入圆锥形收集漏斗中。