Usually, regarding the weak magnetic iron ore of hematite, the preferred method of beneficiation is the re-election method, and the re-election method is also widely used in the beneficiation of coarse-grained hematite due to hematite. The magnetic permeability is poor, and the selection of strong magnetic separation equipment is not expensive, and it is difficult to produce on a large scale. The use of magnetized roasting is more costly, and the re-election method selects coarse particles of hematite, not only the equipment is small, the ore processing cost is low, and the environment is low. There is also no pollution, so the re-election method is widely used in large and medium-sized hematite plants.
The coarse-grained hematite beneficiation is much simpler than the fine-grained hematite beneficiation. Since the iron ore deposit is embedded in the ore, after the crushing and sieving, the monomer dissociation can be completed and then enter the heavy The final concentrate can be obtained by washing the selection process. The re-election process equipment is equipped with a jig. Because the jig can handle coarse, medium and fine-grained hematite, not only the high beneficiation power, but also the beneficiation effect, and it can be produced on a large scale. In some areas, the shaker is also used. Fine-grained hematite, but the effect is not good enough to achieve the desired beneficiation target.
Production technology of coarse-grained hematite: crushing-sieving-jigging-dehydration. Through this simple and efficient re-election process, coarse-grained hematite can be produced, and the beneficiation and power can be as high as required.
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