A composite filter material for blast furnace gas dust removal

The utility model provides a composite filter material for blast furnace gas dust removal which characterized in that: include carbon fiber machine fabric layer, polyimide nanometer fibre web layer, the carbon fiber machine fabric layer of laminating in proper order, sew up carbon fiber machine fabric layer, polyimide nanometer fibre web layer and the quick -witted fabric layer of another layer ofcarbon fiber in the orientation of perpendicular cloth cover through the polyimide suture. Among the carbon fiber machine fabric layer, the carbon fiber diameter: 8.2 mu m, the carbon fiber machine grammes per square metre of weaving: 250gm2. The utility model has the advantages of it is high temperature resistant, filter bag long service life, resistance to motion is low, and dust removal effectis good, and the equipment operation is stable. 种用于高炉煤气除尘的复合滤料，其特征在于：包括依次层合的碳纤维机织布层、聚酰亚胺纳米纤网层、碳纤维机织布层，通过聚酰亚胺缝线在垂直布面的方向上将碳纤维机织布层、聚酰亚胺纳米纤网层以及另层碳纤维机织布层进行缝合。所述碳纤维机织布层中，碳纤维直径：8.2μm，碳纤维机织布克重：250g/m。本实用新型具有耐高温，滤袋使用寿命长，运行阻力低，除尘效果好，设备