Mineral concentration new technique for weak-magnetic iron ore
An iron ore and weak magnetic technology, applied in the field of iron ore beneficiation, can solve the problems of weak magnetic iron ore not being able to be utilized, poor benefit, high investment, etc., achieve good economic value and practicability, good energy saving effect, Good effect
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[0019] Fig. 1 is the new beneficiation process of a kind of weak magnetic iron ore of the present invention, and its concrete steps have been described in the summary of the invention, Fig. 2 is embodiment 1 of the present invention, in order to increase benefit, make the fine iron ore product When the iron content reaches ≥55%, the medium ore powder obtained in the beneficiation can be increased and sent back to the additional step of the wet ball mill, so that it can be ground, screened and beneficiated again.
[0020] According to new technology of the present invention, the inventor has carried out industrial test in the hematite producing area of Hebei Province, China, and obtained good effect, and its specific implementation scheme is:
[0021] 1. First use the jaw crusher to crush the raw ore until the particles are less than 20mm, and then enter the impact hammer crusher for crushing, and crush the iron ore particles into particles and powders less than 8mm;
[0022]...
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