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Introduction
Air flotation machine is a machine that uses small bubbles or tiny bubbles to make impurities in the medium surface. The Dissolved air flotation unit can be used for some of the fine particles contained in the water body whose specific gravity is close to that of water because its own weight is difficult to sink or float.
Technical Data
| Modle | Capacity | Dissolved air volume | Power KW | imension | DN (Nozzle list) | |||||||
| m³/h | m³/h | Reflux pump | Aerator | Skimmer | Blender | Pool diameter (m) | D/D1 | H/H1 | iniet (A) | Outlet (B) | Sludge outlet (C) | |
| WQF-2 | 15～20 | ～7 | 2.2 | 1.5 | 0.75 | 1.5 | Φ2 | 3.4/2.0 | 4.2/2.5 | 100 | 100 | 100 |
| WQF-3 | 30～40 | ～13 | 5.5 | 1.5 | 0.75 | 1.5 | Φ3 | 4.8/3.0 | 4.2/2.5 | 150 | 150 | 100 |
| WQF-4 | 50～80 | ～15 | 7.5 | 1.5 | 0.75 | 1.5 | Φ4 | 5.9/4.0 | 4.2/2.5 | 200 | 200 | 100 |
| WQF-5 | 80～100 | ～30 | 11 | 2.2 | 1.1 | 2.2 | Φ5 | 6.9/5.0 | 4.2/2.5 | 300 | 300 | 125 |
| WQF-6 | 100～150 | ～40 | 11 | 2.2 | 1.1 | 2.2 | Φ6 | 7.9/6.0 | 4.2/2.5 | 300 | 300 | 125 |
| WQF-7 | 150～180 | ～60 | 15 | 3 | 1.1 | 2.2 | Φ7 | 8.9/7.0 | 4.2/2.5 | 350 | 350 | 150 |
| WQF-8 | 200～250 | ～70 | 22 | 4 | 1.5 | 3 | Φ8 | 9.9/8.0 | 4.7/3.0 | 400 | 400 | 150 |
| WQF-9 | 250～300 | ～90 | 30 | 4 | 1.5 | 3 | Φ9 | 10.9/9.0 | 4.7/3.0 | 400 | 400 | 150 |
| WQF-10 | 300～400 | ～110 | 30 | 4 | 1.5 | 3 | Φ10 | 11.9/10.0 | 4.7/3.0 | 450 | 450 | 150 |
| WQF-11 | 400～500 | ～150 | 45 | 5.5 | 2.2 | 3 | Φ11 | 12.9/11.0 | 4.7/3.0 | 450 | 450 | 200 |
| WQF-12 | 500～625 | ～200 | 45 | 5.5 | 2.2 | 4 | Φ12 | 13.9/12.0 | 5.7/4.0 | 450 | 450 | 200 |
| WQF-13 | 625～750 | ～240 | 55 | 5.5 | 2.2 | 4 | Φ13 | 14.9/13.0 | 5.7/4.0 | 500 | 500 | 200 |
| WQF-14 | 800～950 | ～280 | 55 | 5.5 | 2.2 | 4 | Φ14 | 15.9/14.0 | 5.7/4.0 | 500 | 500 | 200 |
| WQF-15 | 1000～1150 | ～300 | 55 | 5.5 | 2.2 | 4 | Φ15 | 16.9/15.0 | 5.7/4.0 | 600 | 600 | 200 |
| WQF-16 | 1250～1400 | ～300 | 55 | 5.5 | 2.2 | 4 | Φ16 | 17.9/16.0 | 5.7/4.0 | 700 | 700 | 200 |
| WQF-18 | 1500～1800 | ～480 | 75 | 7.5 | 3 | 4 | Φ18 | 19.9/18.0 | 5.7/4.0 | 700 | 700 | 250 |
Application
At present, in terms of water supply and drainage, most of the pretreated water quality is light suspended particles, except for some raw water bodies with a lot of sand and sewage with heavier mechanical impurities. For example: algae in lakes, reservoirs and some rivers; plant residues and small colloidal impurities; dye particles in the printing and dyeing industry; short fibers in the paper and chemical fiber industries; oil and organic solvent droplets in the oil refining and chemical industries; electroplating and Heavy metal ions in pickling wastewater; electrophoretic paint wastewater, etc.; are light particles with a specific gravity very close to water. For these raw water, if the traditional precipitation method is used, the effect is bound to be very poor, especially under the low temperature conditions in winter, due to the deterioration of coagulation and hydraulic conditions, the treatment effect is more difficult to guarantee. It is conceivable that if the flocs that are difficult to settle are forced to sink, it will be half the effort. It is better to guide the situation and artificially introduce air bubbles into the water body to make it adhere to the flocs, thereby greatly reducing the overall density of the flocs, And use the rising speed of the bubble to force it to float up to achieve rapid solid-liquid separation. In this sense, the emergence of air flotation technology is a revolution to the gravity sedimentation method, which opens up a new field of solid and liquid separation technology.
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