Method for increasing recovery rate of complex refractory iron oxide ores
A technology of iron oxide and recovery rate, which is applied in chemical instruments and methods, wet separation, solid separation, etc., to achieve the effects of reducing inclusions, strengthening recovery effect, and improving recovery rate
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Embodiment 1
[0021] Step 1. Preparation of complex and refractory iron oxide ores before sorting: For weak iron ore with an iron grade below 40%, mineral embedded particle size below 74 microns, and iron minerals and gangue minerals composed of 3 or more types The magnetic iron oxide ore is crushed in the stope, and when the particle size reaches 20mm or less, it is transported to the concentrator, and then undergoes two stages of continuous wet grinding and classification operations to ensure that 80% of the materials entering the beneficiation are -200 mesh.
[0022] Step 2, strong magnetic roughing: prepare the selected slurry with a mass concentration of 40% of the material prepared in step 1, and feed the selected slurry into a vertical ring pulsating strong magnetic separator with a diameter of 2mm as the magnetic gathering medium to complete the roughing operation , roughing operation to obtain concentrate pulp and tailings pulp, and the concentrate pulp is pumped into the concentrat...
Embodiment 2
[0026] Step 1. Preparation of complex and refractory iron oxide ores before sorting: For weak iron ore with an iron grade below 40%, mineral embedded particle size below 74 microns, and iron minerals and gangue minerals composed of 3 or more types The magnetic iron oxide ore is crushed in the stope, and when the particle size reaches 20mm or less, it is transported to the dressing plant, and then undergoes two stages of continuous wet grinding and classification operations to ensure that 90% of the materials entering the separation with a particle size of -200 mesh.
[0027] Step 2, strong magnetic roughing: the material prepared in step 1 is prepared into a selected slurry with a mass concentration of 50%, and the selected slurry is fed into a vertical ring pulsating strong magnetic separator with a diameter of 3mm as the magnetic gathering medium to complete the roughing operation , roughing operation to obtain concentrate pulp and tailings pulp, and the concentrate pulp is p...
Embodiment 3
[0031]Step 1. Preparation of complex and refractory iron oxide ores before sorting: For weak iron ore with an iron grade below 40%, mineral embedded particle size below 74 microns, and iron minerals and gangue minerals composed of 3 or more types The magnetic iron oxide ore is crushed in the stope, and when the particle size reaches 20mm or less, it is transported to the concentrator, and then undergoes two stages of continuous wet grinding and classification operations to ensure that 85% of the materials entering the beneficiation are -200 mesh.
[0032] Step 2, strong magnetic roughing: the material prepared in step 1 is prepared into a selected slurry with a mass concentration of 45%, and the selected slurry is fed into a vertical ring pulsating strong magnetic separator with a diameter of 2 mm as the magnetic gathering medium to complete the roughing operation , roughing operation to obtain concentrate pulp and tailings pulp, and the concentrate pulp is pumped into the conc...
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