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A new trailer-mounted dust suppressor with inbuilt power source

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World Coal,

In response to customer input from a range of industries, Dust Control Technology (DCT) has developed a transportable atomised mist unit: the DustBoss® DB-60 FusionTM. It combines a workhouse electric dust suppression design with a 45 kW generator set. It is a powerful suppression system with an efficient diesel generator for sites that require a convenient power source, providing 120 v outlet to job sites for any accessory or tool. It is able to deliver up to 62 800 ft2 (5834 m2) of coverage.

“Controlling air quality is essential for communities surrounding a construction or demolition project, but even in places with little infrastructure, dust can choke worksites and foul equipment,” said, DCT President, Laura Stiverson. “We engineered the Fusion to be highly mobile, with its own power source, able to be easily towed anywhere on a job site.”

The DB-60 Fusion pushes water through a circular stainless steel manifold with 30 atomising spray nozzles and then launches millions of tiny droplets with a powerful 25 hp fan that produces 30 000 ft3/min. (849.50 m3/min.) of air flow. Atomised mist droplets of 50 to 200 µm are pushed out in a 200 ft (60 m) cone at an adjustable 0 to 50° elevation angle, capturing airborne dust particles and moving them to the ground. The DB-60 uses about 23 gal./min. (87 l/min.) to help avoid pooling or runoff.

The unit is paired with a 45 kW gen set featuring a John Deere Tier III Flex engine with a 100 gal. fuel tank, enabling up to 24 hours of runtime. The diesel engine delivers 480 v (60 hz) with a full load current of 46 amps.

“We’ve seen competing designs on the market that have a diesel engine powering the dust suppressor, using a drive belt system similar to a vehicle,” Stiverson pointed out. “In comparison, the direct drive electric motor used in the Fusion dramatically reduces maintenance requirements, delivering superior reliability and long service life.”

The DB-60 and gen set are set together on a heavy-duty trailer with a steel frame with tyres, enabling towing at highway speeds and with a weight of 6550 lb it can be towed with a variety of vehicles with appropriate towing capabilities.

Water sources can fluctuate, and the unit requires a constant supply pressure of just 10 psi (.069 bar). Standard municipal water pressures are generally around 50 psi (3.44 bar). The water is delivered through a 1-1/2 in. (38.10 mm) hose with a cam-and-groove quick disconnect coupling leading to the booster pump. The pump adds approximately 150 psi (10.34 bar), with a maximum of 250 psi (17.23 bar), depending on the inlet pressure. For use with a non-potable water source, the Fusion is equipped with an in-line 30 mesh, 595 µm filter system that can be easily cleaned.

A touch screen panel for controlling the dust suppression unit is encased in a NEMA 3R cabinet, enabling operators to control oscillation, booster pump, fan and water. The cabinet is constructed for outdoor use, designed to provide protection against ingress of solid foreign objects (such as dirt), air (dust, emissions), water (rain, sleet, snow) and ice formation.

The unit carries an industry-leading 3 yr/3000 hr warranty on the dust suppressor and a 2 yr/2000 hr warranty on the gen set. If potable water is being used, nozzles typically need to be inspected annually. The turntable bearing on the oscillator should be greased annually or as needed for harsh service conditions and the fan’s motor. The high-pressure pump should be lubricated every 10 000 hr. Akin to any diesel engine, the gen set is to have regular examinations and changing of oil, coolant and filters.

“Our customers are global and mobile, experiencing environments from jungle to tundra,” Stiverson concluded. “Our goal was to design a freestanding unit, which catered to those needs without compromising performance, with easy transport and adaptability to a wide range of conditions.”

Edited from press release by Harleigh Hobbs

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