The dry fog dust suppression system is widely used in the mining, cement, construction, coke handling including fly ash, and in various industries such as food processing, chemicals, papermaking, textiles, metals, and many others. It effectively prevents dust explosion accidents.
The dry fog dust suppression system compresses and mixes compressed air with water under specific conditions, producing a large output of sub-micron dry fog at various dust control points. This forms a vast fog bank composed of millions of sub-micron droplets, which has a significantly higher density and number compared to similar-sized dust particles. Due to their similar volume, the dry fog particles are more effective at capturing dust particles, continuously combining with them and causing them to fall.
The dust suppression system outputs fog droplets below 10 micrometers, which evaporate rapidly in normal temperature conditions, causing less than a 0.3% increase in moisture content of materials, and poses no damage to production equipment such as belt conveyors, vibrating screens, etc.
The Dry Fog Dust Suppression System revolutionizes traditional dust control methods, tackling the issue at its source and eradicating dust particles in their nascent stage. It doesn't employ any chemical products, utilizes minimal water resources, and consumes very little electricity, making it an energy-saving, environmentally friendly, and effective tool for dust suppression.
Principle of Dry Fog Dust Suppression Device:
When droplets become sufficiently fine (close to the diameter of dust particles), they evaporate rapidly into steam in spaces with relative humidity below 100%. Under the condensation nucleation mechanism in the field of cloud physics, the fog continuously evaporates into steam in large quantities, causing the air humidity to rapidly reach saturation. Dust particles, as they move with the air flow, collide and come into contact with fog droplets, causing them to condense together. When the particle size increases to 10-20 um, they can be easily removed by ordinary fog.
Dry Fog Dust Suppression System Particles
The micron-level dry fog dust suppression device can emit water fog with varying diameters, ranging from 1 to 10 micrometers. It is the water fog particle size emitted by the micron-level dry fog dust suppression device detected with special instruments (large squares are 1 µm, small squares are 2 µm).
Application of Dry Fog Dust Suppression Equipment
Tipping machines, train unloading chutes, loading sheds, belt transition towers, truck unloading chutes, car unloading bins, vibrating feeders, impeller coal feeders, belt coal feeders, belt stackers, stackers, reclaimers, ship loaders, ship unloaders, round storage bins, rectangular storage bins, slag outlets, ash outlets, etc.
Advantages of Dry Fog Dust Suppression Equipment
Compared to other dust removal equipment in the same category, it excels in terms of treatment effectiveness, material loss, and operational costs, making it a more ideal modern dust removal unit.
Dry fog dust suppression equipment provides effective results.
The Dry Fog Dust Suppression System primarily features a breakthrough from traditional dust suppression methods, eliminating the need for dust collection, pipeline transportation, and post-processing. It directly suppresses dust at the source of dust generation, treating it at the root. Dry fog dust suppression is suitable for any industrial or mining site and any type of dust, with excellent treatment for respirable dust below 10um, achieving dust suppression rates of over 96%, and preventing the hazards of silicosis. After treatment, the dust concentration at open or semi-open disorganized emission sources (such as unloading stations, loading buildings, slag outlets, reclaiming machines, ship loaders, ship unloaders, etc.) can be stabilized below 10-50mg/Nm³, and even below 3.5-10 mg/Nm³ in enclosed disorganized emission sources (such as crushing rooms, screening buildings, belt conveyor transfer stations, etc.), depending on the quality of the enclosure.
Dry fog equipment saves resources and funds, and is safe and reliable.
The dry fog dust suppression device consumes less water, with a material humidity increase of only 0.02%. It causes no heat value loss in the material (coal) and produces no secondary pollution. It occupies a small footprint, is easy to operate, and features PLC full automatic control. The initial investment for the dry fog dust suppression system is low, and the operation and maintenance costs are minimal (maintenance once every six months), with one-time maintenance fees ranging from 2000 to 3000 yuan. It significantly reduces the likelihood of dust explosions, allowing for a reduction in fire protection equipment investments.
