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Multotec has developed a 12-turn spiral concentrator and the first order has been manufactured and shipped to an international customer. Christina Ramotsabi, General Manager - Process Engineering at Multotec, explained that the HM12 spiral was designed and tested in-house, evolving from the company's NHM heavy minerals spiral.
"The customer required higher recoveries from their mineral sands plant, while also achieving optimal grades. Our HM12 spiral concentrator will deliver these increased recoveries while still maintaining a limited footprint in the plant." said Ramotsabi.
Conventional spirals generally feature seven or eight turns. Two stages of these spirals would be required to achieve similar recoveries with one 12 turn spiral. The company say that the use of the 12-turn setup reduces footprint requirements as well as the use of additional equipment like pumps, distributors, and piping.
For more information: https://www.multotec.com/en/mineral-spiral-concentrators
