Ductwork

The smaller of the two systems shown here was designed to extract from a number of woodworking machines at a scenery manufacturers. The longer length of flexible hoses allow the machines to be moved due to the nature of the items being manufactured and all the dust was directed back to a centralised filter unit. This was a preowned envelope type filter with shake down clean facility. The second system was an installation at a wooden toy manufacturer’s facility and extracted from a number of CNC machines as well as collecting shredded material from hoggers adjacent to the CNCs. All the dust and collected material was directed back to a centralised filter and burner plant that combusted the material to generate heat for the factory and to reduce wastage.

Dustair worked along side William Cooks of Sheffield on the creation of a new foundry at their Parkway site following relocation of their other Sheffield site. Dustair provided the foundry fume extraction for both their lost wax casting and main foundry as well as ventilation for the core machines. Total scope of works for Dustair was in excess of a third of a million pounds including bespoke pivoting hoods over the melting areas, filtration plant, cooling and pouring areas ventilation and fume extraction over the  mould/core making equipment. Special mention was given to Dustair and a number of other suppliers during the opening Ceremony hosted by Sir Andrew Cook and Lord Coe.

New ductwork, hoods and enclosures for a new aluminium foil rolling mill at Bridgnorth Aluminium in Shropshire. The system was manufactured as a heavy fabrication due to both the nature of the process and the explosivibility of the pollutant fume generated by the kerosene lubricants applied to the rolling operation as a coolant . The hoods were also designed to be retracted hydraulically for maintenance, part of the requirement of the equipment. The design of, and fabrication of, the retractring hoods and the mechanism was all within Dustair’s scope of supply.

Dustair were able to supply plastic ductwork systems suitable for corrosive and aggressive materials that would normally damage metal fabrications. Here we installed a number of internal enclosures, cabinets and multiposition arms to exhaust from a chemical mixing process predominantly utilising various acids. New ductwork had to connect to the various points within the building and pass out through an existing hole in the roof structure in order to avoid disturbing the existing asbestos. To place the fan at floor level for ease of access the ductwork had to run over 30m across the existing factory before descending to floor level. The final vertical discharge had to be clear of the adjacent building structure by over 3m.