Application of stainless steel rotors and stators in highly corrosive slurries

In a sulfur-containing copper mine flotation workshop, the slurry was strongly acidic (pH value 2-3), and the traditional carbon steel rotor and stator were severely corroded, requiring replacement every 1 month on average, with high maintenance costs. After replacing with 316L stainless steel rotor and stator, its corrosion resistance was greatly improved, which could adapt to the strongly acidic slurry environment, the service life was extended to 8 months, and the maintenance cost was reduced by 75%. At the same time, the surface of the stainless steel rotor and stator is smooth, reducing slurry adhesion, improving aeration efficiency, increasing the copper ore flotation recovery rate by 3.7 percentage points, and the concentrate grade is stable in the qualified range, completely solving the problem that the rotor and stator are easily damaged in high-corrosion slurry.