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Mineral froths are generally divided into large bubbles that are easily broken and very small tenacious bubbles that are difficult to separate from the slurry liquid. As ore grades declined everywhere, the flotation of the minerals produced increasingly tenacious froths, which caused pumping difficulties for operations. Grinding out more and more fines and ultrafine results in smaller bubbles froth. And a flocculant is added to the slurry to lock the air into more tenacious bubbles. Operators can use best practice design to design a more appropriate froth pump circuit or reduce flocculant of fines. MUYUAN pump industry CO., LTD. has a long history with froth pumping and its specialist engineers can help you resolve issues in your flotation circuit. To find out more, please contact us.
The biggest issue with pumping slurry is that air centrifuge into the centre of the froth pump, the eye of the impeller. Air will prevent the slurry from passing the froth pump. Excessive slurry forces air through the pump, which can cause significant strain loads on the froth pump's bearings as they pass, as well as on the froth pump's impeller and shaft, reducing their wear life.