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DCT develops a smaller version of its low-turbulence atomized mist unit

Published by
World Coal,


Dust Control Technology (DCT) has engineered a smaller version of its low-turbulence atomized mist unit for applications that require precision particle control without the disturbance of a fan-driven design. Developed for applications such as conveyor unloading points and other limited-space dust-producing areas, the DustBoss® DB-M Mini is built to provide effective suppression without material disruption or saturation. Generating a cascading mist of atomized droplets averaging 50 – 200 µm in size, the unit has a throw of about 10 ft (3.04 m) under calm conditions. The result is effective fugitive particle management at the source of the problem, with little pooling or runoff.


Atomizing nozzles fracture the flow into millions of droplets,which are distributed evenly across the target area.

“We’ve found suppression is best achieved by controlling dust at the source whenever possible,” said Dust Control Specialist, Carl Harr, DCT. “We designed this compact version of the DB-M to fit into smaller spaces to directly address those specific problem areas.  It’s well suited to applications involving very fine dust particles, such as slag dust or flyash,” he added.

The standard boom length is 2 ft, but can be specified anywhere from 1 – 15 ft (0.3 – 4.57 m). It is fitted at the end with a misting head featuring 9 atomizing nozzles. With a minimum required pressure of just 10 psi (0.69 bar) and a maximum of 100 psi (6.89 bar), water is fed through a standard ¾ in. swivel hose coupling or an optional 1-1/2 in. NPT connection. The water travels through an in-line 75 mesh (200 µm) filter, up the boom and to the head, where the atomizing nozzles fracture the flow into millions of droplets, which are distributed evenly across the target area.

According to Harr, every operation is unique, which may require a high level of customisation. “Dust particles vary widely in both composition and size. These differences require droplet sizes that match the particle sizes in order to be most effective, and in some cases chemical treatments are needed, as well.”


The DB-M Mini is designed to deliver point-specific dust control without material disruption or saturation.

Along with the customisable boom length, proprietary Variable Particle Sizing (VPS) Technology allows specialised nozzles to be added, removed or replaced on the head in order to customise droplet sizes for optimum suppression. If using potable water, nozzles need only be inspected once per year.

An optional dosing pump can be attached for accurate metering of odor control additives, surfactants to improve binding to particles, or tackifying agents to help seal ground-level dust and prevent it from becoming airborne. The unit runs on water pressure alone, requiring no electrical hookup.

“This is an important addition to our product line, because operators now have a compact point-of-emission solution,” Harr concluded. “Along with less fugitive dust, when added to a workplace air quality control plan, operators may find a lower burden is placed upon their other dust suppression methods and air filtration systems.”


Adapted from press release by Joseph Green

Read the article online at: https://www.worldcoal.com/product-news/13032015/dust-control-technology-develops-targeted-dust-control-for-low-turbulence-applications-176/


 

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