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.

涂层被广泛用于保护用于处理用于处理烟道气体的管道和旋风，这是由于炉子，锅炉和蒸汽发生器（例如发电应用中）释放的。这样的气体包含粉煤灰颗粒，其成分因应用而变化，但通常以5-300 um氧化铝，二氧化硅或氧化钙颗粒的形式形式。旋风通常用于去除这些颗粒物，作为烟气处理的第一个“预修”步骤。在这样的设备中，气体在螺旋涡旋中加速，较大的颗粒被其惯性携带到圆柱壁上，最终掉入圆锥体收集料斗中。