Atomised mist cannon manages dust in unfavourable weather

The next advancement in industrial dust suppression has been introduced by BossTek, the leader in atomised mist technology.

The powerful cannon that is designed to fight dust with maximum efficiency was developed in response to the needs of customers in areas with variable winds.

The DustBoss DB-60 Surge features water propelled at high velocity from a centre nozzle, combined with the industry-proven fan and misting ring system.

With three remote-controlled stages and precision oscillation for optimum command over water volume and coverage area, the cannon uses high-powered jets that surge through the wind for over 76.2 metres to suppress both surface and airborne dust. The result is effective and versatile dust mitigation in challenging weather for outdoor operations ranging from demolition to bulk material processing and storage.

BossTek dust control specialist Mike Lewis said the company’s customers operated in very different circumstances; some with high-reach excavators, some in open areas without natural barriers, while others are located in narrow corridors where wind velocity is amplified.

“What these customers have in common is the difficulty in controlling fine atomised mist during blustery conditions,” he said.

The DB-60 Surge is built for versatility and continuous use in punishing outdoor weather conditions.

“So we worked with our industry partners, listened to their feedback and engineered our most versatile and innovative machine to date.”

Lewis said one of the initial drivers behind the new design was a need in the demolition industry.

“Several customers described their challenges in suppressing dust during demolition of high-rise structures,” he said.

“Some of them use attachments that can be mounted on a high-lift boom, but that can bring its own complications. When we started working on a solution, we realized that this technology would also deliver benefits to a wide range of applications in which variable wind conditions can be a problem, such as port facilities, material processing operations and large outdoor storage facilities.”

The DB-60 Surge combines the power of an industrial fan, misting ring and heavy-duty barrel with the reach and force of a central high-pressure spray nozzle.

The pressurised spray resists wind shear and even uses the force of the wind to further fragment and carry the droplets, enhancing its dust suppression capabilities.

This is achieved without the need for the high water output associated with a hydrant-dependent hose or industrial sprinkler system.

In high-wind situations, dust is lifted into the atmosphere and carried beyond the site line over long distances, which can lead to permit violations.

Operators of bulk storage mounds, demolition sites, ports, recycling material piles, etc. often mitigate particulate emissions using a sprinkler or hose to saturate a material’s surface. The higher the wind, the more water pressure is required to break through the shear, resulting in greater amounts of water filling the surrounding work area — often 300 GPM (1135 litres per minute) or more.

There are several issues associated with the use of hoses and industrial sprinklers. Hoses typically require manual labor, removing workers from other critical tasks.

Moreover, both sprinklers and hand-held hoses contribute to high water bills. Taking compliance and expenses into consideration, the long-term cost of operation for sprinklers and hoses is higher than it might appear.

The DB-60 Surge addresses wind, labour and water usage issues. While striving to stay compliant with dust regulations, operators can now better match the water requirements to the specific application.

Fed by a standard 38 millimetre hose with a cam-and-groove quick disconnect coupling, the powerful booster pump delivers as much as 500 PSI (27.5 BAR) of water pressure to the centre nozzle, with an output of 37-100 GPM (140-378 litres per minute).

Controlled by a three-stage system adjusted by a hand-held remote, the first stage is highly effective on moderate days for airborne and surface coverage.

It uses the powerful 25 horsepower fan and misting ring to deliver millions of fine atomized mist droplets over a wide area, which collide with tiny dust particles and drag them to the ground.

For windy days, stage two features a pressurised stream delivered by the central nozzle. On high wind days, operators can utilize the fan, misting ring and center nozzle for maximum coverage.

The versatility and coverage area is extended with the customizable 359º horizontal oscillation range and 0º-50º vertical throw angle. Using the hand-held remote, the operator can raise the spray angle to reach extended heights, directing the 76 metre spray to areas such as high-reach demolition or across the beam of large bulk cargo ships.

The oscillation range is easily controlled with the left and right trigger of the remote control to customize the precise desired horizontal range.

The cannon uses high-powered jets to cut through the wind, suppressing surface dust and airborne particles.

Mounted on a heavy-duty roadworthy trailer for towing at highway speeds with a standard ball hitch, it can be placed by a pickup truck, skid steer or lift truck wherever dust suppression is needed.

As supplied, the DB-60 Surge can run potable or non-potable water, as it is equipped with two in-line 30 mesh, 595 micron filters to avoid clogging. One filter is located at the water entry point to the booster pump, another prior to the pipe feeding the central nozzle.

After the initial setup, the DB-60 Surge requires no labor to operate. The remote control has a 1000 foot (305 m) range, so operators using heavy machinery from high-reach excavators to front loaders can command the machine without leaving the cab.

Other options are already available, including tower mounting and a version of the company’s popular Fusion lineup, which pairs the Surge with a generator to alleviate the need for a nearby power source.

BossTek is a global leader in dust and odour control solutions for the storage and handling of clinker, petcoke, coal, rock and aggregate, as well as controlling air quality during port unloading, recycling and scrap processing, mining, earth moving, and demolition activities.

To keep up to date with Australian Mining, subscribe to our free email newsletters delivered straight to your inbox. Click here.