电磁浮动床除尘装置的设计与实验研究

针对所设计的电磁浮动床除尘装置，为了掌握该装置的运行规律以及除尘效果，以铁磁颗粒为床料，通过实验分析了铁磁颗粒质量对床层高度的影响，以及风量和磁场强度等因素对床层高度和压强降的影响，并对风量和磁场强度与除尘效率的关系进行了研究，确定最佳运行条件：进口含尘气体浓度为20 g·m-3，磁场强度为300 Gs，风量为110 m3·h-1，除尘效率高达99.34%，为电磁浮动床用于高温除尘工艺奠定了基础。

Design and experimental research of a dust removal device for magnetic floating bed

Dust removal efficiency and operation laws were obtained in various operational conditions with experiments done for a magnetic-enforced floating bed column filled with ferromagnetic particles. The effects of ferromagnetic particle weight on the height of the floating bed, of flow rate through the column and the intensity of magnetic field on the height and pressure drop in the bed, and of flow rate through the column and the intensity of magnetic field on the dust removal efficiency were studied and analyzed. Results showed that the dust removal efficiency reached 99.34%, at an optimum magnetic field intensity of 300 Gs with a volume flow rate of 110 m3·h-1 and dust concentration of 20 g·m-3. With this study, a foundation was established for dust removal technology in a magnetic floating bed column with high temperature gas.