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Boral employ a CDE fines classification system at Moora quarry near Perth to produce quartzite ore for use by Simcoa in silicon production.
Undoubtedly Australia’s largest building and construction materials supplier, Boral Limited has over the years secured its market leading position with the development of three main divisions, namely construction materials, cement and a diverse range of building products.
Alongside significant operations in USA and Asia, Boral has successfully established The Boral Construction Materials division in their domestic market with around 400 operating sites; ensuring that the construction materials division has a regional focus to serve the company’s local markets.
Situated in Moora, north of Perth, Boral Ltd are currently on contract with a quarry operation owned by Simcoa Operations, a company committed to producing the world’s highest quality silicon from a site that has been in operation for over 20 years.
At the outset, Boral’s ultimate aim was to produce a high quality quartzite ore for use by Simcoa in their silicon production process. This ore is typically 75-25mm in size, with all 0-7mm previously being sent to the waste lagoons. Boral essentially wanted to implement a process whereby water could be recycled and recovered from within an extremely dry climate where water supply is limited.
Paul O’ Brien, Boral’s Fixed Plant Engineering Manager began consultation process with CDE Global. After this initial consultation, CDE offered a design and proposal that demonstrated efficiencies in operations and huge savings in material recovery. CDE ultimately designed, manufactured and installed a system that eliminated the loss of quality fines (0-5mm) to nearby settling ponds whilst controlling water levels for reprocessing.
As a result of their operating needs, Boral invested in a CDE EvoWash 101 Fines Recovery Sand plant complete with an M1508 Radial Stockpile conveyor and a LQPP 25 flocculant make up and dosing system. With the chosen equipment, the end result is a high quality, fine sand recovery with an efficient cut at 63um. Before the introduction of the new CDE fines recovery plant, the operation was losing a significant proportion of quality fines to the waste ponds.