Fiber Abrasion Mechanism due to Gas-Particle Two-Phase Flow through the Bag-Filter Installed in the Dust Collector of Waste Incinerator

对提高垃圾焚烧炉除尘器袋式除尘器的使用寿命进行了研究。袋式除尘器被广泛应用于通过滤布去除废气中的有毒物质，特别是二恶英。为了防止袋式除尘器在运行过程中发生故障而导致有害物质向周围环境扩散，需要一种可靠的袋式除尘器寿命预测方法。通过对布袋过滤器模型进行流动可视化和计算流体力学分析，明确了气-颗粒两相流对纤维磨损的机理。

The improvement of lifetime of bag-filter in a dust collector of the waste incinerator is investigated. The bag-filter is used widely to remove the toxic substance, especially dioxins included in the exhaust gas by passing through the filter cloth. To prevent the hazardous matter from scattering into the environs due to the failure of the bag-filter in operation, a reliable method for prediction of lifetime of the bag-filter is needed. Flow visualization and an analysis of computational fluid dynamics to make clear the fiber abrasion mechanism due to gas-particle two-phase flow through the model of bag-filter are performed.