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The dust that fell to Earth

spray cannon

Garic has signed a deal to supply its range of spray cannons to Ron Smith Recycling, a division of the Hutchins Group. The Middlesex-based recycling and demolition company took delivery of its first 35m cannon just a couple of months ago and already has plans to order a second.

Ron Smith previously had a sprinkler system to damp down the dust created during processing of the residential and commercial waste the company collects. In addition to sorting recyclable mixed waste, it shreds large quan­tities of wood.

The sprinkler was not effective enough at reducing airborne par­ticles, and the volumes of water used created other problems. The materials to be recycled would be soaked by the spray, making them difficult to handle and the processing yard became very muddy.

Having tested a number of dust suppression units, Ron Smith decided on a 35m cannon from Garic because it is really effective at tackling dust and does not cre­ate the mess normally associated with suppression systems.

The spray produced by the can­non is a fine mist and, instead soaking everything, it simply clings to airborne particles and brings them down to the ground for quick and easy clearance.

The cannon is capable of spray­ing 1,000-litres/hr up to distances of 35m with its 7.5kW fan. The 34-nozzle misting system gener­ates an ultra-fine fog of water particles as small as 10μm.

Measuring 185 x 140 x 210cm, the 500kg cannon tilts from 10°- 60° and oscillates up to 359° so the spray can be directed to exactly where it is needed.

The cannon is ideal for Ron Smith’s environmental and health and safety needs. The company’s ultimate requirement when work­ing on dust-heavy recycling and demolition work is to protect its workers and people living and working adjacent to their sites.

Being robust and powerful, the spray cannon is extremely efficient across mid-sized sites. It is self-contained with its own generator and bowser, and is towable for ease of positioning.

Ron Smith, which has 52 employees and recently opened a new depot, was impressed with how effective and easy to use the new cannon is, mostly in its yard where it sorts very large quantities of construction waste.

The company is now discussing the purchase of a second unit so that it has increased dust control capacity on a number of demoli­tion projects to eliminate con­crete, brick and asbestos dust.

With the control of hazardous dust emissions becoming increas­ingly regulated, and the need for more efficient damping down and odour control systems, Garic meticulously researched the mar­ket in the UK and Europe to find the best and most cost-effective dust and odour suppression products to complement its range of welfare and site set-up equipment.

The range now includes 15 models starting with the SC5 handheld cannon through to the heavy duty SC100, and is comple­mented by a spray wall system for external use and a high pressure system for indoor applications such as warehousing.

The SC15, 35, 45 and 60 models can also be supplemented with an individual self-supporting system consisting of a water bowser and generator.

Despite having a powerful spraying distance of up to 100m, the cannons in the self-supporting range operate on smaller generators than their industry counter­parts, which help to lower fuel bills. For example, based on the SC45ss model, running costs could be reduced by up to £60 a week against a comparable com­petitor product.

Significant savings are also achieved with the remote con­trolled models which do not require a dedicated operator.

The cannons are available with a supplementary pump to enable the addition of chemical additives to the spray which can assist with the management of odours.

Garic’s misting spray cannons are currently being used to control dust and odour emissions across the UK on projects varying from recycling and biomass processing, demolition, asbestos removal and soil remediation to steel, slag, wood and aluminium processing and at landfill sites and ports.

Neil Richardson is a director at Garic

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