无机陶瓷膜去除废气中微尘的试验研究  

Experimental study of dust removal from waste gas by ceramic membrane

作　　者：雷国元[1] 余雄奎[1] 刘巍[1] 徐桂芹[1] 李亚伟[2] 

机构地区：[1]武汉科技大学资源与环境工程学院,湖北武汉430081 [2]武汉科技大学材料与冶金学院,湖北武汉430081

出　　处：《武汉科技大学学报》2007年第4期376-378,共3页Journal of Wuhan University of Science and Technology

基　　金：武汉科技大学耐火材料与高温陶瓷湖北省重点实验室开放课题基金资助项目(G0304)

摘　　要：研制多孔微滤陶瓷膜，试验研究了这种微滤陶瓷膜过滤去除废气中微尘的效果。试验结果表明，这种陶瓷膜对气体中微尘具有良好的过滤效率。用-1μm含量为95％，中位径为0．159μm的微尘进行过滤试验，除尘效率迭97．78％～100．00％，除尘效率随过滤风速的增加而降低。过滤时压降与过滤风速之间呈线性关系。过滤后的陶瓷膜可以通过气体反冲再生，反冲气速大于9．00m／s时，膜通量可以完全恢复。The porous ceramic membrane is prepared and utilized to remove micro-dust from waste gas in test scale. The experimental results show that the ceramic membrane is good at removing micro-dust from waste gas.When tested on the micro-dust in which -1μm micro-dust with medium size at 0. 159μm accounts for 95%, the dedusting efficiency reaches 97.78～100.00%. The dedusting efficiency de- creases with the increase of flow velocity. In filtration, the relationship between pressure drop and flow velocity is linear; after filtration, the ceramic membrane is regenerated by baskwashing of clean air. When the gas backwashing exceeds 9.00 m/s, the flux of ceramic membrane can be restored completely.

关 键 词：陶瓷膜 除尘 微尘 过滤 

分 类 号：X701.2[环境科学与工程—环境工程]