The so-called fog cannons currently on the market actually cannot achieve the effect of dust reduction at all. For the two or three thousand fog cannons that raise serious dust, they are negligible. This involves a very professional theory.
If the droplet diameter is larger than the dust particles, the large water droplets will have little or no contact with the dust. Just like when we sprinkle water in a dusty room, the dust is not absorbed. This explains why water spray is not very effective at suppressing dust. Because its typical droplet particle size is 200-600 microns, and we are dealing with respirable dust less than 30 microns. Dust suppression requires two conditions:
(1) There are enough dust particles and water droplets of the same size;
(2) Dust particles and water droplets are in a closed area, causing aggregation can fully occur and persist.
I know that the strong wind generated by the Hengbo Yue fog cannon through system supercharging and turbocharging can produce ultra-fine mist droplets, with an average particle size of about 30 microns or less (nothing 20 meters away from the fog-facing surface in a windless state) (Obvious condensation), in hazy weather, it can spray dust, decompose and dilute the particle concentration in the air, and can effectively decompose polluted particles and dust in the air, effectively alleviating haze. According to reports, the cost of purchasing such a big guy is 50,000 to 150,000 yuan. The polluted particles floating in the air are quickly forced down to the ground to achieve the effect of cleaning and purifying the air.
The fog cannon has a range of 30 to 100 meters. For the same 10 tons of water, the fog cannon can only spray for 1 hour, but the fog cannon can spray for 12 hours, which greatly improves the utilization of water resources. The fog cannon can achieve 340° rotation, flexible movement, and simple maintenance. Easy to control, automatic control and precise tracking and positioning control.