Dry Fog Dust Suppression System

The design of the KAVERl system is based on a unique nozzle that can produce a very dense fog of 1 - 10 micron in size of water droplets that can literally blanket dust source and keep the dust particles from becoming airborne.

The dual flow nozzle is an air driven device for fogging liquids by passing them through a field of high frequency sound waves. This is accomplished by compressing air stream of a specially designed converge section of the nozzle. The result is an air stream that will accelerate past the speed of sound, in the converge section. When it passes the speed of sound, a primary shock wave is generated at the mouth of the nozzle.

To enhance the fogging capacity, a resonating chamber in the path of the air stream reflects the air stream back it self to amplify the primary shock wave. Once the shock wave is generated, water is delivered through annular orifices where it is sheared in relatively small droplets. These small droplets are then carried by the primary air stream in to the shock wave and exploded into thousands of micron size fog droplets. The air then escapes around the resonator chamber and carries the droplets downstream in a soft low velocity fog pattern.