Tecpro Australia recently worked with Jeff Hill Plumbing to came up with a dust supression solution to a suburban Sydney building material recycling plant's need to lower the amount of dust being carried by the wind onto adjoining properties.
The recycling plant's existing dust suppression systems were both unreliable and inadequate, with existing nozzles ineffectively located, producing water droplets far too big to attract dust particles, and often blocked due to inadequate filtration.
Tecpro Australia engineers worked with Jeff Hill of Jeff Hill Plumbing on the dust supression problem and suggested the use of low flow, CAY cluster nozzles, which produce large quantities of fine water droplets.
The CAY cluster nozzle has a built in filter, however Tecpro suggested improvements in filtration of the water supply would further enhance the reliability of the new dust suppression system.
These cluster nozzles were deployed at conveyor drop off points and on the primary crusher drop chute. In one particular application, a line of cluster nozzles form an effective droplet screen.
Additionally, “Cobra Head” deflection fan nozzles were applied to wash conveyor belts at the plant and to wet product where practical.
For dust suppression in vehicle movement areas, Tecpro Australia came up with a solution that would not only be significantly more affordable than the normal water carts, but also a lot safer. The “Skipper” water canon was set to sweep and wet down a selected arc and with a throw length of 35 metres, it only needs to be turned on for short periods to suppress dust over a large area.
These solutions improved the standard of dust suppression on the building material recycling plant and exceeded the site operator's environmental obligations.