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Rolls-Royce has invested in a fine-particle decontamination facility for its Distributed Generation Systems business in Cheshire to clean up military mobile power generators prior to overhaul.

Diesel-powered generator sets, often returning from harsh overseas environments, have to be disassembled and cleaned of dust or fine particles before being completely stripped down and overhauled.

Repair and overhaul personnel, wearing air-fed masks, clean the trailer-mounted units of dust using a combination of air blasting and brushing.

Recognising the need for an efficient method of removing the dust and fine airborne particulate during the cleaning process, Rolls-Royce called in extraction specialist Dust Control Systems (DCS) to discuss its requirements.

Following an assessment of Rolls-Royce’s needs, DCS proposed the installation of 12 environmental control booths (ECBs) located down each side of the decontamination area in two banks of six.

DCS also recommended that a centralised vacuum cleaning system with extraction from any four of seven points would enable workers to deal with dust lying on the floor.

Specially designed to safely extract fine airborne dust, the ECB features a design that pulls dust-filled air away from operatives at a rate of 0.7m/s, providing 99.97 per cent filtration efficiency.

With clean air moving at the same rate, this ‘cross-flow’ method of air circulation eliminates the ‘stopping and starting’ caused by dust accumulation and poor visibility, keeping workers comfortable and increasing productivity.

Chris Oldfield of DCS said: ‘Because the filter units are modular in design, we were able to design a self-contained working environment that fitted the room exactly.

‘The installation provides powerful dust collection complete with lighting, sound proofing and ceramic infrared heating.

‘Incorporating long-life nano-fibre filter media, the system achieves extremely high filtration efficiency with automatic reverse-air pulse cleaning,’ added Oldfield.

Chris Goodwin, works director at the business, which is located in Winsford, Cheshire, said: ‘It was vitally important that we had an extraction system that would ensure a healthy and safe environment for the team working in the area and also protect other workers outside the area from the nuisance of dust and noise.

‘DCS designed and installed the plant to fit precisely into the available space, providing an environment with clean air and excellent visibility for our team to work in,’ added Goodwin.

Dust Control Systems

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