1.The HKZD Antiweat High-voltage Static Filter dust-collecting with efficiency of 99.9% 2.new- ... safety and environmental conservation institute, the HKZD, as one new-type static filter, is applied to the fields such as cement, construction ... cathode wrapped by ash3 adopting advanced techniques integrating sedimentation, tourbillion, static dust-collecting with efficiency of 99.9%;4 with special ...