🔹DMS in current iron ore use
Two of the biggest DMS installations in iron ore involve the plants of Kumba Iron Ore at their Sishen mine in South Africa and of Rio Tinto at their Mount Tom Price mine in Australia.
🔹🔹Sishen DMS plant
Sishen crush their run of mine (ROM) to a nominal top size of 90 mm before separation into four main size fractions. The two coarsest fractions −90 + 25 mm and −25 + 8 mm are gravity fed to separate WEMCO drum sections (Figure1), while the two finer fractions −8 +5 mm and −5 + 2 mm are fed to the DMS cyclone plant (Figure 2). The −2 mm material is kept out of the DMS circuits for enhanced efficiency and is rather beneficiated by non-DMS classification.
The Sishen drums are WEMCO 4 m × 4 m units with rated capacities of 650 and 450 tph in the coarse drum plant (−90 + 25 mm) and medium drum plant (−25 + 8 mm), respectively. The DMS cyclones are 360 mm with rated capacities of 340 and 190 tph per cluster of three units in the coarse cyclone plant (−8 + 5 mm) and fine cyclone plant (−5 + 2 mm), respectively.
Examples of the sharply defined sinks and floats of both drum and cyclone operations are shown in Figures 3 and 4.
@mineralprocessing
Two of the biggest DMS installations in iron ore involve the plants of Kumba Iron Ore at their Sishen mine in South Africa and of Rio Tinto at their Mount Tom Price mine in Australia.
🔹🔹Sishen DMS plant
Sishen crush their run of mine (ROM) to a nominal top size of 90 mm before separation into four main size fractions. The two coarsest fractions −90 + 25 mm and −25 + 8 mm are gravity fed to separate WEMCO drum sections (Figure1), while the two finer fractions −8 +5 mm and −5 + 2 mm are fed to the DMS cyclone plant (Figure 2). The −2 mm material is kept out of the DMS circuits for enhanced efficiency and is rather beneficiated by non-DMS classification.
The Sishen drums are WEMCO 4 m × 4 m units with rated capacities of 650 and 450 tph in the coarse drum plant (−90 + 25 mm) and medium drum plant (−25 + 8 mm), respectively. The DMS cyclones are 360 mm with rated capacities of 340 and 190 tph per cluster of three units in the coarse cyclone plant (−8 + 5 mm) and fine cyclone plant (−5 + 2 mm), respectively.
Examples of the sharply defined sinks and floats of both drum and cyclone operations are shown in Figures 3 and 4.
@mineralprocessing
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