Superficial air flotation unit applied in paper mi

Superficial Air Flotation System The high efficientsuperficial air flotation equipment designed by our company is an advanced quick air flotation system. The mechanism of unit is on the basis of traditional air flotation theory, and combined with shallow theory and zero velocity mechanism. The system has special design and it is a high efficient clarifier because flocculation, flotation, skimming, sedimentation and scraping could be integrated. Main advantage 1. Low effective water depth (400 500mm). 2. Short HRT (3 5min). 3. High treatment capacity and high surface load. 4. Compact unit and modular assembly, no separate controlling room. The equipment could be installed in the empty space and combined mutiply. 5. Low installation and maintenance cost and easy to cleaning. 6. The type of QA air dissolving system is used in the unit, and it has special structure and air dissolving rate is about 90%, but the volume is only 1/5 comparing to conventional system. So the unit has strong anti-clogging performance. Specification Capacity25 840m3/hPressure of dissolving air water≥0.4MPaTank depth600 780mmDesign rotate speed1/3 1/5rpmEffective water depth400 500mmDosing pump power0.18 1kwHRT3 5minMain machine power1.2 6.2kwHydraulic surface load6 10 m3/m2.hAir compressor power0.18 5kwReflux ratioWastewater,Cleaning water≥10%