Beneficiation method for comprehensively using vanadium-bearing titanomagnetite low-grade lean ore and ore below cut-off grade
A technology of vanadium titanomagnetite and beneficiation method, applied in chemical instruments and methods, wet separation, solid separation, etc., can solve problems such as poor resource utilization effect, improve resource utilization rate, improve mining efficiency, reduce stripping The effect of picking
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[0041] Example 1 (applicable to the south with a long rainy season and more rainfall)
[0042] For the mined mixed ore of the surface ore and the surface ore, the three-stage crushing-screening closed-circuit crushing process is used to crush to a particle size of -10mm 100%; for the crushed product with a water content greater than 3%, a wet cylinder permanent magnet is used Weak magnetic roughing and strong magnetic scanning technology are used for pre-separation, fully enriching and recovering metal minerals mainly composed of titanomagnetite and ilmenite, which are mineral aggregates, and obtaining a pre-separation rate of 68.12%. Concentrate, discard the pre-separation tailings with a yield of 31.88%, and use the closed-circuit process of grinding-screening and grading for the pre-separation concentrate to carry out the I-section rod milling to the particle size of -1mm 100%. Grinding products are subjected to wet permanent magnetic weak magnetic separation, wet permanent ma...
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[0043] Example 2 (applicable to the south where the rainy season is long and the rainfall is more)
[0044] For the mined mixed ore of surface ore and surface ore, the three-stage crushing-screening closed-circuit crushing process is used to crush to a particle size of -10mm 100%. For crushed products with a water content of more than 3%, a wet cylinder permanent magnet is used The process technology of medium magnetic roughing and strong magnetic sweeping is used for pre-separation to obtain a pre-separated concentrate with a yield of 66.80%, and discard the tailings with a yield of 33.20%; the pre-separated concentrate adopts grinding-screening The grading closed-circuit process carries out I stage coarse grinding and grinding to a particle size of -1mm100%. The products of stage I coarse grinding are subjected to wet permanent magnetic weak magnetic separation, and the weak magnetic separation tailings are subjected to wet permanent magnetic medium magnetic separation. The tai...
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[0045] Example 3 (applicable to the north where there is year-round drought and less rain)
[0046] For the mined mixed ore of surface ore and off-surface ore, the three-stage crushing-screening closed-circuit crushing process is adopted to crush to a particle size of -10mm 100%, and the water content of the crushed product is 2 O 6 0.683%, TiO 2 9.33% high-quality iron ore concentrate. Then, the iron-dressing tailings are subjected to strong magnetic separation of titanium, and the strong magnetic separation tailings with a relatively strong magnetic separation operation yield of 44.50% are discarded and sent to the tailing pond to obtain the strong magnetic separation concentrate, and then the strong magnetic separation concentrate is added Flotation of ilmenite with regulator, fatty acid sodium and auxiliary collector, the yield of mixed ore is 12.17%, grade TiO 2 High-grade titanium concentrate with 48.41% and TFe32.35%, and flotation titanium tailings are sent to the taili...
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