Tag Archives: dust suppression

BossTek brings in DustBoss DB-60 Surge reinforcement to fight dust

BossTek says it has introduced an advancement in industrial dust suppression with a powerful cannon that is designed to fight dust with maximum efficiency.

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 center nozzle, combined with an 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 250 ft (76.2 m) 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, it says.

BossTek Dust Control Specialist, Mike Lewis, says: “Our customers operate 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. So we worked with our industry partners, listened to their feedback and engineered our most versatile and innovative machine to date.”

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, BossTek explains. 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, the company claims.

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 (such as mining companies), 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 gallons per minute (1,135 litres per minute) or more.

There are several issues associated with the use of hoses and industrial sprinklers. Hoses typically require manual labour, 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, labor 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 1.5 in (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, with an output of 37-100 g/min (140-378 l/min).

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 hp fan and misting ring to deliver millions of fine atomised 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 use the fan, misting ring and centre nozzle for maximum coverage.

The versatility and coverage area is extended with the customisable 359º horizontal oscillation range and 0-50º vertical throw angle. Using the hand-held remote, the operator can raise the spray angle to reach extended heights, directing the 250 ft (76 m) 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.

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 labour to operate. The remote control has a 1,000 ft (305 m) range, so operators using heavy machinery from high-reach excavators to front loaders can command the machine without leaving the cab.

Lewis mentioned that 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.

“DustBoss is known for its rugged quality and long equipment life, often described as one of the most reliable and low-maintenance pieces of equipment on any job site,” he added. “Our three-year or 3,000-hour warranty is evidence of our confidence in the products. The DB-60 Surge is designed with that same philosophy and is built to last.”

Quaker Chemical highlights dust suppression, ground control and fluid expertise

Quaker Chemical Corp says its package of dust suppressants, ground control agents and longwall fluids address several of the mining industry’s ongoing needs.

High levels of respirable dust and quartz can cause visibility and other health and safety issues to mine workers, which is where its DUSTGRIP® dust suppressants come in.

These suppressants have been formulated, the company says, to:

  • Reduce the generation of airborne particulate matter from mines, roads, stockpiles, rail hauls, construction sites, quarries and other areas where air-born dust is a problem;
  • Increase site safety for workers by reducing levels of airborne dust and quartz, and;
  • Have a cumulative effect so they are longer lasting with lower maintenance cost when compared with water alone.

On top of this, it has its MINETECH™ Ground Control Agents within its portfolio. Designed to consolidate and stabilise unstable ground, as well as seal against water ingress, these ground control agents provide good penetration into small cracks and fissures, high adhesive strength and “Outstanding mechanical properties and flexibility to be an effective ground consolidation and stabilisation tool”, it says.

Fluid instability, sticky soaps, bacteria and corrosion can all be a risk to mine equipment and workers, the company said. “QUINTOLUBRIC® 818-02 has been developed as a 100% synthetic true solution that triples filter life through superior fluid dynamics and improved system cleanliness; reduces bacteria, keeping systems free of corrosion and plugged filters, and; is compatible with all commonly used longwall fluids for easy conversion.”

Mechel’s Trade Port Posiet tests out thyssenkrupp coal storage sprinkler system

Trade Port Posiet, part of Mechel Group’s transport division (managed by Mecheltrans Management Co), has started testing specialised equipment to suppress dust at the port’s outdoor coal storage areas in Russia.

The port acquired a stationary sprinkler system for coal storage from thyssenkrupp as part of its technical upgrade investment project. This system consists of 22 automatic sprinklers that operate “as natural rain” and ensures year-round dust suppression in the production area. The system’s water discharge rate is up to 96 cu.m/h.

The first four sprinklers have been assembled, connected to a 2.9-km trunk pipeline and checked for pressure integrity, according to Mechel. After these tests, the port’s staff pronounced the first sprinkler line ready for launch. To prevent mechanical damage, the port constructed concrete safety barriers separating the sprinklers and haul roads.

The launching of the stationary sprinkler system at the port’s storage areas is the latest stage of the company’s efforts to upgrade the port’s infrastructure and reduce its environmental impact, Mechel said. It is due to be launched in the March quarter.

Mecheltrans Management Company OOO’s Chief Executive Officer, Alexey Lebedev, said: “A work zone sprinkler system is an efficient instrument widely used in specialised terminals dealing with loose goods. What is important is that the sprinkler system will be managed from a central dispatch. A special program will determine the sprinkler operating algorithm that would be the most effective in suppressing dust at any given moment.

“In addition, the trans-shipment complex’s operator will finetune the sprinkler system’s work, depending on the wind’s strength and vector, the state of handled coal and other factors. This way we will ensure accurate control of the dust suppression system.”

Trade Port Posiet’s technical upgrade project includes various ways of reducing the port’s impact on the environment. Coal is currently unloaded by railcar dumpers in a closed space equipped with de-dusting systems that rule out the chance of dust escaping into the open air. In the winter, railcars with thawed coal are moved after defrosting into the railcar dumper facility via a covered conveyor gallery. Coal transfer stations are also equipped with de-dusting systems. Conveyor lines are additionally equipped with metal galleries to protect the environment from coal dust. As coal is transferred into storage areas, it is moistened by a water dispersion system installed on stacker/reclaimers.

Mechel Group’s investments into creating a computerised terminal at Port Posiet exceed RUB4 billion ($61 million). The port’s trans-shipment capacity enables the company to export up to 9 Mt/y of coal.