Dust Defiers!
Published: 11/9, 2023
The prevention of airborne particles continues to be an important factor on modern demolition sites. Here are some of the latest offerings in the field of dust suppression.
B + W launches Naltec spray cannons
B + W expands its Naltec water fog system range with new spray cannons that generate super-fine floating water droplets with a low working pressure of 150 psi (10 bar), according to the company. The fine nebulization makes it possible to economize the water consumption which leads to a decrease in energy and operating costs, and the mobile and stationary structure is adaptable to local conditions. The fans create a fine water mist that is blown over a long distance, and by tilting to 350°, all-round fogging and wetting of a large area is possible.
Depending on the requirements, there are different varieties which differ in the throwing distances and amount of water sprayed. In windless condition, a throw distance of 50 to more than 650 ft (15 to 200m). The model has a steel construction, and basic equipment includes a fan with diffuser, nozzle ring in stainless steel, frame with rotary actuator, pump with filter, and controller with dry-run protection. Other accessories, such as the three-wheel undercarriage, remote control, trailer, water tank and power generator, are suited for individual requirements. The Naltec spray cannon is independent from the water and power connection, and by using the trailer the spray cannon can be used in any location.
Dynaset presents new kits for HPW-Dust system
Dynaset offers new kits for its HPW-Dust high-pressure dust suppression system for mobile machinery in fields such as demolition, crushing, and recycling. The different accessory kits include connectors, nozzles, or filters, available for a variety of machines.
The HPW-Dust system produces atomized water mist to suppress dust. According to Dynaset, the dust suppression effect binds the dust with minimal water, and a smaller drop size binds more dust particles and improves dust suppression compared to low-pressure dust suppression systems. Nozzles are installed either at the end of the excavator’s boom or directly on the demolition tool. That way, the atomized water mist is targeted where the dust is emitted, and the particles are trapped under a cover right after birth.
With HPW-Dust, the user can drive the machine to the side of the building, connect the inlet water hose or fill up the water tank, and activate the dust suppression system from the cabin when needed.
BossTek introduces upgrades with DustBoss DB-60 Surge
BossTek introduces a pair of upgrades to one of its advanced dust suppression cannons in a move to enhance its power to cut through difficult wind conditions and deliver particle management. The DustBoss DB-60 Surge features a new, adjustable high-pressure center nozzle, giving operators more control over the dust-trapping water plume. BossTek says the re-design is engineered to provide multi-step, variable flow dust control, and the single center nozzle allows users to fight wind or pinpoint a long-reach target for dust suppression at the point of emission, while minimizing clogging and maintenance.
Another update is the addition of a variable frequency drive (VFD) pump to the ducted fan and misting ring design. The VFD smart pump technology allows the machine to react to specific water delivery capabilities, and senses when the water supply is unable to keep up with demand and automatically lowers the flow to keep the machine running. Fed by a standard 1.5-in (38mm) hose with a cam-and-groove quick disconnect coupling, the booster pump delivers up to 400 psi (27.5 bar) of water pressure to the center nozzle.
The center nozzle also has a variable spray pattern, from tight jet stream to a wider plume, and can be modified remotely or on the unit. It can be coupled with the optional filtration system for non-potable water. The DB-60 Surge features remote control from up to 1,000 ft (305m) away, and custom oscillation ranges can be created from local controls or the remote. The model will retain the 3-stage performance options, so that users can operate with the misting ring alone, the center nozzle alone, or both together. Its equipped with adjustable elevation from 0-50° and 260° oscillation, capable of delivering more than 86,000 ft2 (8,000m2) of coverage. According to BossTek, the pressurized spray resists wind shear and uses the force of the wind to further fragment and propel the droplets, while the misting ring delivers a variable pattern of millions of tiny droplets to suppress both airborne and ground-level dust. Mounted on a trailer for towing at highway speeds with a standard ball hitch, it can be placed by a pickup truck, skid steer, or lift truck. After the initial setup, the DB-60 Surge requires no manual labor to operate.
Other options are available, including tower mounting and a version of the Fusion lineup, which pairs the Surge with a generator to alleviate the need for an accessible power source.