Page 5 - Hub-4 Magazine Issue 73

Featured
Aggregate Washing Story
“The recyclable material passes through a wash box where water is added to turn the material into a slurry and feed it onto a large double deck vibrating pre-screen. Both screen decks are fitted with polyurethane modules which are easy to change and have a long wear life compared to wire mesh.
“The 50mm to 90mm material passes onto a horizontal conveyor and into a stocking bay. The minus 5mm sand flows into an existing pump tank and the 5 – 50mm material is then fed forward into a twin shaft log washer; a completely new design by Tyrone this incorporates a lot of new design features, including extreme ease of access for maintenance of all parts.”
This improved access philosophy is seen throughout the plant and also on the trash and dewatering screen.
“After passing through the log washer, material is then fed onto a large double deck rinsing screen which removes any remaining sand that has been carried through the log washer and produces three clean aggregates, 10mm, 20mm and 40mm stone.
“The trash material is floated out at the lower end of the logwasher and onto a large vibrating trash screen which dewaters the material and allows the water, silt and any fine sand to flow through the deck and into the pump tank. The flow rate of the water, the height of the weirs and the speed of the logwasher shafts can be adjusted to optimise the removal of the trash and the cleanliness of the washed aggregates.”
Ensuring an effective plant on a daily basis:
The plant is fitted with a belt weigher to monitor the tonnage fed into the plant; additionally, remote data management can determine what time the plant started and stopped, including how many minutes the belt runs empty, what time the operator started to put material into the plant, which is basically to encourage better utilisation, better throughput of the plant. The multitrack system provides management information to any chosen computer or internet connected device.
All the components of the plant have been designed using top quality components that are available in the marketplace. The logwasher blades are manufactured from high chromium steel for maximum wear life. The logwasher is fitted with top hinged doors along both sides of the hull which remain locked during operation and can be easily opened to access the logwasher shafts, blades, and spray nozzles.
“Delivered in the striking company red and white this state of-the-art plant is something rather special and marks a significant step forward in plant design and Tyrone International are to be applauded for this versatile and efficient processing system, said John Edwards-Editor HUB-4”.
Ian Pickevance added “We have received top service from Tyrone International, a truly knowledgeable team and the back-up is superb. We are looking forward to growing our business further with the addition of this equipment.”
www.hub-4.com March-April 22 - Issue 73
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