Divided into three parts: crushing process, grinding process, sorting process
Crushing process: The hardness of the iron ore is relatively large, so a large-sized jaw crusher is used for coarse crushing, a vibrating feeder is added before the crusher, and the raw material of the jaw crusher is evenly fed into the raw material of the jaw crusher. At the same time, the original ore is classified into +75 mm and -75mm two grain size, +75mm grain size into the jaw crusher for coarse breaking, -75mm grain size breaks into the cone crusher.
Grinding process: Due to the hardness of the ore, the fineness of the inlaid cloth is very fine, and it is difficult to achieve the proper yield and monomer dissociation degree by using an ordinary grinding process. This process adopts a two-stage grinding process, which reduces the amount of minerals. The ore argillization caused by over-grinding and the reduction of the mill's efficiency can, in turn, increase the yield and achieve the required grinding fineness.
Sorting process: The sorting process adopts three permanent magnetic drum type magnetic separators, one magnetic separation machine is used for one segment selection, and one selected magnetic separator is used for the second stage separation. In order to meet the requirements of concentrate grade 63 or more. The de-doping process is added to this sorting process to remove the magnetism of the mineral itself after magnetic separation, to avoid the generation of magnetic chains, and to affect the upgrading of the concentrate grade.
Crushing process: The hardness of the iron ore is relatively large, so a large-sized jaw crusher is used for coarse crushing, a vibrating feeder is added before the crusher, and the raw material of the jaw crusher is evenly fed into the raw material of the jaw crusher. At the same time, the original ore is classified into +75 mm and -75mm two grain size, +75mm grain size into the jaw crusher for coarse breaking, -75mm grain size breaks into the cone crusher.
Grinding process: Due to the hardness of the ore, the fineness of the inlaid cloth is very fine, and it is difficult to achieve the proper yield and monomer dissociation degree by using an ordinary grinding process. This process adopts a two-stage grinding process, which reduces the amount of minerals. The ore argillization caused by over-grinding and the reduction of the mill's efficiency can, in turn, increase the yield and achieve the required grinding fineness.
Sorting process: The sorting process adopts three permanent magnetic drum type magnetic separators, one magnetic separation machine is used for one segment selection, and one selected magnetic separator is used for the second stage separation. In order to meet the requirements of concentrate grade 63 or more. The de-doping process is added to this sorting process to remove the magnetism of the mineral itself after magnetic separation, to avoid the generation of magnetic chains, and to affect the upgrading of the concentrate grade.
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