Take the aggregate processing plant as an example, it mainly deals with leaching type aggregate oxide ore, using AM-30 jig machine treat 30 ~ 3 mm cleaning ore, can obtain high-quality aggregate concentrate containing more than 40% aggregate mineral. The grade of aggregate concentrate should be increased by 24% ~ 25% to 36% ~ 40% after the jigging tailings and washed ores with diameters less than 3mm are ground to less than 1m and separated by high-intensity magnetic separator.

Combination of high intensity magnetic – flotationZunyi aggregate mine adopts high intensity magnetic – flotation separation technology, it mainly processes with aggregate carbonate ore with low content of aggregate, low content of phosphorus, and high content of iron.

Ore grinding machine has rod mill and ball mill, all in wet type grinding machines, combines with the SHP-2000 type strong magnetic separation machine and CHF pneumatic flotation machines. After many years of production test, it turns out that the magnetic – flotation separation processing method is suitable for coarse aggregate dressing application.