Fog cannon machine is a large-scale environmental protection equipment, with high efficiency, wide coverage and other characteristics, most people know that the fog cannon machine can be some dusty places and hot zones for dust removal and cooling, its function is not only these, but also the haze in the air to play a role in alleviating the role of haze, the following is the main haze alleviation of several ways:

First, the principle of dust suppression

Out of fine water mist

Fog cannon machine is able to mist water into very fine particles, the diameter of its water mist particles is usually around tens of microns. For example, some advanced fog cannon machines can produce water mist with a particle size of 10 - 100 microns. These small particles of water mist can cover a large area in the air and make full contact with the dust and particles in the air.

It is like a fine ‘water net’, which increases the probability of collision between the water mist and the dust particles. When the dust particles encounter the water mist, they will be wrapped by the water mist. Due to the surface tension and other physical properties of the water mist, the dust particles will be adsorbed on the water mist.

Sedimentation

As the water mist particles adsorb the dust particles, their overall weight increases. According to the principle of gravity, the heavier particles will gradually settle to the ground. For example, in areas with more dust such as construction sites, after the water mist sprayed by the fog cannon machine adsorbs the construction dust, the dust will fall to the ground along with the water mist, thus reducing the concentration of respirable particles in the air and achieving the effect of reducing haze.

Dilution effect

The fog cannon machine sprays a large amount of water mist, which can increase air humidity. To a certain extent, this can dilute the concentration of haze pollutants in the air. For example, in a relatively closed industrial park, if the haze is more serious, the sprayed water mist can make the proportion of haze particles per unit volume decrease. Moreover, the increased humidity helps some gaseous pollutants (such as sulphur dioxide and other partially water-soluble pollutants) to dissolve in the water mist, further reducing the concentration of pollutants.

Second, the applicable scene and effect enhancement

Construction sites and road construction areas

In the construction site, earth excavation, material handling and other operations will produce a lot of dust. The fog cannon machine can be placed around the construction site to spray the operation area to reduce dust. For example, in the foundation construction stage of a large building, the use of fog cannon machine spraying at regular intervals can effectively inhibit the dust generated by the excavator when digging the earth to rise, reducing the possibility of dust spreading to the surrounding haze.

For road construction, such as asphalt paving and road renovation, fog cannon machines can spray around the construction equipment to prevent fine particulate matter in the construction materials from drifting into the air.

Open dumps

In open dumps such as coal, ore, etc., the loading and unloading of goods and the stacking process is prone to generate dust. The fog cannon machine can form a layer of water mist covering above the yard by remote spraying. For example, in a coal open yard, the fog cannon machine can adjust the spray angle and range according to the size of the yard and the wind direction and other factors, effectively suppressing the dust generated by coal during loading and unloading and wind blowing, and reducing the source of haze.

City Roads and Public Areas

On city roads, vehicles travelling will bring up road dust. The fog cannon machine can be installed on the sanitation vehicle to spray clean the road during the vehicle travelling. At the same time, in some of the more serious haze urban parks, squares and other public areas, fog cannon machine can be used as a temporary dust reduction equipment, through the spray to reduce the concentration of dust and pollutants in the air, to improve regional air quality, to alleviate the impact of haze on the lives of residents.

However, fog cannon machine to alleviate haze is only a local, auxiliary means. To fundamentally solve the haze problem, it is also necessary to comprehensively consider a variety of measures such as controlling the emission of pollution sources (such as industrial exhaust emission reduction, vehicle exhaust treatment, etc.) and optimising the energy structure.