Case Studies | Air Filtration

Solution: Reverse Jet Venting Filter Client:              ACO Technologies MECHON were commissioned to provide new dust filter units for the client’s silos. The existing filtration system design was deemed to be inadequate, as only two silos were fitted with filtration plant. The remaining two silos were linked to the adjacent silo through a welded pipework system: this design caused cross contamination between silos. (more…)

Solution: Reverse Jet Dust Extraction Client: Transport Research Laboratory   TRL provides world class research, consultancy and testing for all aspects of transportation. Part of the service that TRL offers is the development on new road surfaces and pavements. The client utilises a variety of concrete mixers, asphalt mixers and curing ovens to undertake this work. These processes release hazardous substances to the environment, posing a risk to employees. Existing LEV systems were found to be non-compliant with the CoSHH Regulations and associated guidance notes (HSG37). (more…)

Solution: Reverse-Jet Dust Extraction Client: Lafarge Roofing Technical Centre MECHON were commissioned to design and project manage a new dust control system in the client’s clay preparation area. An existing system was in place, however it was found to be non-compliant with the CoSHH Regulations 2004, due to high Workplace Exposure Limits (WEL’s) and low ductwork conveying velocities. (more…)

Solution: Reverse Jet Cartridge Filter Client: Performance Car Manufacturer   The Client is a UK manufacturer high performance cars for both road and Formula 1. Part of the manufacturing process involves the rapid production of prototype moulds. These parts are produced using state-of-the-art rapid prototyping machines.   MECHON designed and project managed an advanced dust extraction system to provide protection to employees to prevent inhalation of hazardous aluminium and titanium  based dusts. This mixture of  dusts was deemed explosive, so specific safety features were required to ensure compliance with the Atex Directive. The system comprised dedicated booths, designed to allow employees to break open the moulds within a contained enclosure and preventing dusts from escaping to the workplace. Secondary hoods with automated extract facility were supplied to allow re-filling of the mould canisters. A high-efficiency, reverse-jet cartridge filter was installed to clean the air and allow recirculation back into the workplace. A Fike explosion suppression system and…

Solution: Dust Extraction System Client:      GKN Aerospace, Luton   MECHON was commissioned to design and project manage a dust extraction system to control explosive dusts generated by a CNC Milling process. The materials being machined by the Client are temperature sensitive, so MECHON paid particular attention to the design approach used for the capture, containment and control of dust emissions. Traditional LEV dust extraction capture methods such as articulated arms were considered but not employed in this design due to feasibility. Exposure benchmarking suggested that a fully enclosed system would be most effective control measure. The CNC machine enclosure was placed under negative pressure with a total extraction rate of 1,270m3/hr. A system of air-bleeds were introduced to give the operator some limited control over the introduction of ambient air into the enclosure, whilst maintaining the correct conveying velocities in the ductwork system (required under the CoSHH regulations outlined in HSG 258). A…