Tag Archives: dust management

BossTek releases new dust control cannon

In response to input from customers across the demolition and bulk material handling sectors, BossTek, a leader in atomised mist technology, has introduced a powerful new mobile mid-sized dust control cannon.

The DustBoss® DB-45 Surge® is the next iteration of the popular Surge series featuring an innovative pressurised centre nozzle paired with the industry-proven fan and misting ring system to suppress both surface dust and airborne particulates, the company says. With three remotecontrolled stages and precision oscillation for optimum command over water volume and coverage area, the DB-45 Surge delivers the dependability of atomised mist along with J2P (jet-to-plume) nozzle technology that surges for over 60 m, even in troublesome windy conditions, the company claims. The result is an easily manoeuvrable, autonomous and versatile dust control solution for outdoor operations in all weather conditions.

Our first iteration of this technology was larger for operations with high-reach cranes and enormous coverage areas,BossTek Dust Control Specialist, Mike Lewis, said. Managers of medium and smaller operations were impressed with the existing technology but wanted a lighter and more compact option that offered the same excellent field-tested versatility and results. With a 200-ft (60 m) throw range, I’d say that most of our customers will be well-served by the new model.

Bulk handlers with tall stockpiles of raw material commonly experience windy conditions high above the ground. In turbulent situations, dust is lifted into the atmosphere and carried beyond the site line over long distances, which can lead to permit violations. Operators often mitigate particulate emissions using sprinklers or hoses to saturate a material’s surface. The stronger the wind, the more water pressure is required to break through the wind shear, resulting in greater amounts of water filling the surrounding work area – often 300 GPM (1,135 lpm) or more.

The DB-45 Surge combines the power of a 25-horsepower industrial fan, misting ring and heavy-duty barrel with the reach of a central high-pressure spray nozzle. The misting ring introduces millions of tiny dust capturing droplets into an area for proven dust suppression. The pressurised spray resists wind shear and uses the force of the wind to further fragment droplets, enhancing its dust suppression capabilities. This is achieved with a maximum of 72 GPM (372 lpm) and as little as 17 GPM (77 lpm) when using only the misting ring and fan. The cannon also features a VFD (variable frequency drive),which allows the unit to operate more efficiently at lower water pressure.

The three stages are input by the touch screen system, protected by a sealed NEMA 4 cabinet or controlled by a heavy-duty hand-held remote control with a 1,000 ft (305 m) range. Stage one is highly effective on moderate days and uses the powerful 30,000 CFM (849.5 CMM) fan and misting ring for wide area coverage. For windy days, stage two features a pressurised stream delivered by the J2P nozzle to pinpoint the source of the dust. On high wind days, operators can choose stage three which uses the fan, misting ring and centre nozzle for maximum coverage.

This allows the DB-45 Surge to be “set it and forget it” autonomous equipment, unlike hoses and industrial sprinklers, which typically require constant manual labor to monitor and operate, BossTek claims. Manual operation keeps workers in active zones near moving equipment, increasing the chance of injury and raising the costs of operation for sprinklers and hoses due to extra labor and possible liability.

The DB-45 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 mm 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.  

The coverage area is extended with the customisable 260º horizontal oscillation range and 0º-50º vertical throw angle. 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-45 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 and another is located prior to the pipe feeding the central nozzle.

Other options are already available, including tower mounting for permanent locations. The cannon is also available as part of the company’s popular Fusion lineup, pairing the DB-45 Surge with a trailer-mounted generator to alleviate the need for a nearby power source. With a 15 hp booster pump, the unit only requires a 45 kW generator, which most demo contractors already have in their equipment arsenal.

The DustBoss product line is known for its rugged quality and long service life, often described as one of the most reliable and lowmaintenance pieces of equipment on any job site,” Lewis concluded. “Our 3-year or 3,000-hour warranty is evidence of our confidence in the products.  The DB-45 Surge is designed with that same philosophy: it’s built to last.”

Jord International addresses pressing issues for BMA Caval Ridge

Jord International has recently taken up a challenge from BHP to come up with a safer solution to filter press maintenance at the Caval Ridge metallurgical coal mine, in Queensland, Australia, as part of the New South Wales-based company’s expanding remit to unlock new technologies for the wider mining industry.

The plant and systems designer, developer and service provider was awarded the project, part of BHP’s Supplier Innovation Program challenge, earlier this year. It has seen Jord design and construct the first concept prototype in tandem with the maintenance team at the mine.

The prototype comprised a belt cartridge installer within a self-contained steel frame that holds a new belt and removes the old, damaged belt. The first commercial belt installer is expected to be in use by July, according to BMA.

Craig Samuel, Jord’s Mechanical Engineer for Aftermarket and Reliability, said the filters the company worked with at BMA Caval Ridge are 3 m wide x 5 m long, with the product path through the filter around 14 m long. While the solution was designed for Caval Ridge specifically, he said it could have applications on any site or with any commodity using filter presses.

“The idea came from the understanding of how the filter belts are installed, and a cartridge-style installer just made sense considering Caval Ridge has a readily available crane to move the cartridge around,” Samuel told IM. “The mechanics of the installer required some out-of-the-box ideas to develop a continuously variable speed ratio between the new belt roll and the old belt roll.”

Samuel said he expected the belt change time to be cut in half with this new solution.

Jord has already applied for another BHP Supplier Innovation Program challenge that could leverage a dust management and cleaning innovation, but the company has also been investing in research and development to commercialise new minerals beneficiation technologies for more efficient and effective liberation of ore, according to Kevin Barber, Jord’s General Manager of Resources.

“Our goal is to unlock new technologies that provide step-change improvements to current processes in the industry,” he said of these new technologies. “It’s about using less energy, using less water and removing some of the environmental challenges with particular focus on tailings. We’re finding alternative ways of dealing with problematic ores and resources.”

Fortescue Metals granted approval to expand iron ore capacity at Herb Elliott

Fortescue Metals Group says it has received approval from authorities to increase the material handling capacity of its Herb Elliott Port facility, in Western Australia, from 175 Mt/y to 210 Mt/y on a staged basis.

The approval, under the West Australian Environmental Protection Act 1986, includes provisions for 188 Mt/y of hematite ore and 22 Mt/y of magnetite concentrate. The high-grade magnetite product will be produced from the Iron Bridge magnetite operations, with first ore on ship from Iron Bridge scheduled for mid-2022.

The revised licence uses the capacity of Fortescue’s existing port infrastructure, comprising five berths and three ship loaders, and supports its 2021 financial year iron ore shipments guidance of 175-180 Mt.

Chief Executive Officer, Elizabeth Gaines, said: “Fortescue’s port operations are world leading and we have continually demonstrated our capacity to optimise the efficiency and productivity of our port infrastructure to deliver iron ore to our customers.

“The increase in the licensed capacity of Fortescue’s Herb Elliott Port from 175 Mt/y to 210 Mt/y is in line with our strategy to deliver growth through investment, including the $2.6 billion investment in the Iron Bridge project. This significant project will deliver 22 Mt/y of high-grade magnetite product, enhancing the range of products available to our customers through our flexible integrated operations and marketing strategy.

“We will continue to ensure that Fortescue remains a significant long-term contributor to the state and national economies through growth and development of our iron ore assets, job creation and investment.”

Fortescue says it maintains a high level of vigilance over its management of dust in Port Hedland, with installation and implementation of additional controls ensuring no net increase in dust emissions as a result of the progressive increase in throughput capacity at Herb Elliott.