How to select iron-bearing quartz ore, do this!

The geological structure of the iron-bearing quartzite mining area includes metamorphic complexes of rocks, represented by various crystalline schists (composed of quartz-amphibole-biotite), ferruginous quartzite, clinoporphyry, gabbro, and amphibolite. Iron quartzite is mainly produced in the upper strata of the metamorphic layer, forming parallel elongated deposits with ore-free crystalline schist interlayers.

The implementation of drilling and blasting operations results in the mixing of ore and rock, which increases the throughput to obtain the necessary quantities of commercial products. Ensuring a reduction in energy consumption (over 66%) in key energy-intensive operations such as grinding and classifying is dry magnetic separation. The choice of this preconcentration method depends on the mineral composition of the ore: variations from highly magnetic to low magnetic ferruginous quartzite, magnetite-amphibole, amphibole-magnetite and biotite-magnetite.

The initial ore and dry magnetic separation processed products are crushed in three processes on the 80×150 jaw crusher under the condition that the crushing space is full and the gap between the jaws decreases with the operation, and then crushed on the rollers. The crusher brings the sample material to a fineness class of -2 + 0 mm in one operation.