Introduction
Magnetite dressing process is in a dominant position in iron ore selection. Gravity separation, magnetic separation, flotation, roasting magnetic separation, and combined process are used for weak magnetic lean iron ore; magnetic separation is directly used for strong magnetic iron ore.
Application Field
Magnetite dressing process can be applied to single magnetite ore with simple ore properties.
Table of Contents
Process Flow
According to the magnetic strength of the ore, the dressing process method suitable for its properties is selected. The magnetic separation process is used as the main process method, and the combination of gravity separation, flotation, roasting magnetic separation and other combinations is used as a combined process method. The ore separation and separation has a basis.
Strong magnetic iron ore dressing process
It is mainly used to select low-grade magnetite. Because the ore has strong magnetism and is easy to grind and select, the current grinding is mostly used for coarse-grained magnetite, and the multi-stage grinding process is used for the opposite. At present, the fine grinding technology we promote can increase the concentrate grade from 61% to about 67%.
Weakly magnetic iron ore beneficiation process
Weakly magnetic minerals can be separated by the separation method of strongly magnetic minerals after magnetization roasting.
Fine grinding
In the two-stage grinding, stage separation, and single weak magnetic separation process, the fine screen re-grinding and re-selection process is added, which can separate the fine-grained minerals that have achieved monomer dissociation in time, reduce the occurrence of over-grinding, improve the processing capacity, and at the same time increase the concentrate grade by about 2%.
Process Flow Chart
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