Written by DSI Copyright 2010 nodust.com

How does it work?

DSI technology uses a special air-atomizing nozzle that produces a very dry fog to agglomerate and remove airborne dust particles from various material handling and processing operations.  The DSI system utilizes compressed air and plain water to produce these 1-10 micron droplets (true fog).  These ultra-fine water droplets attach (agglomerate) to like size airborne dust particles, sometimes referred to as PM-10 (particulate matter 10 microns or smaller).  The slightly wetted dust particles are then heavy enough to be removed from the air by their added weight and fall back into the process. It is important to note, we only wet the dust, not the material, resulting in very low water and power consumption, with no expensive chemicals or significant wetting of the product (always less than 1/2 % by weight, typically no more than 0.1% moisture addition). 

Where does it work?

DSI fog systems have proven to significantly reduce fugitive dust from a variety of material handling points.  These include conveyor transfer points, trippers, reclaimers, crushers, screens, truck dumps, railcar loading/unloading, ship loaders-unloaders, and ash silo discharge chutes. DSI systems can meet all requirements for explosion hazard areas. Freeze protection can be provided for system operation in temperatures as low as minus 35 degrees F.  Due to a phenomenon, known, as “cloud physics” fog droplets will not freeze, due to their lack of mass!

What are the advantages?

There are many advantages to the DSI system, including, ease of installation, simplified maintenance, and flexible system configuration. The overall capital investment, operating cost and system performance can be superior to ventilation, and chemical type systems.  These advantages are due in part to the fact that we use easy to install, pre-assembled modular components, housed in protective enclosures. We supply complete systems including the electrical controls, filtration, regulation, supply lines and nozzle mounts. Where required, DSI can supply all ancillary items necessary including air compressors, air receiver stations, pumps, and self-cleaning secondary filtration systems.