Iron ore Beneficiation Process:
1. Large raw iron ore for primary crushing are fed into the jaw crusher by a Plate feeder and are reduced to 8 inches or smaller. After first crushing, the material will be transferred to a cone crusher by belt conveyor for secondary crushing; the crushed iron ore stone will then be transferred to a vibrating screen for classifying. After classifying, the parts whose size is below the mesh size will be transferred away as final products, while the other parts will return to the cone crusher, thus forming a closed circuit. The size of final products can be combined and graded according to your specific requirement.
2. The smaller crushed iron ore is fed to the ball mill for grinding. Inside the ball mill, the crushed iron ore will grind ore to about 0.2 mm with 3-inch steel balls.
3. This iron ore slurry is pumped to the agitation tank. This iron ore slurry is finally pumped to the flotation machine with the fine sulfide ore (~-0.074 mm) going to froth flotation cells for recovery of iron.
4. In the magnetite processing plant, the process of flotation separation is replaced by magnetic separation. The minerals are conveyed to the permanent magnetic dewatering tank for concentrate and then concentrate will enter the permanent magnetic drum for a second magnetic separation. The concentrate after filtration and drying is conveyed to the warehouse for storage.
Iron ore beneficiation equipment are including:
jaw crusher, cone crusher, vibrating screen, ball mill, spiral classifier,hydrocyclone, flotation machine, magnetic separator,
efficient thickener, press filter, slurry pump, feeder, agitation tank and belt conveyor, etc.