Beneficiation ratio is the ratio of the raw ore weight and the concentrate weight. The size of the beneficiation ratio reflects the level of resource utilization and beneficiation costs. Therefore, study how to reduce the ore beneficiation ratio has a very real sense.
Reduce beneficiation ratio can be decided from the three elements of beneficiation ratio: raw ore, fine ore, and tailings grade, constantly improving the ore grade and magnetic iron occupancy and lowering the grade of tailings, so as to achieve the purpose of reducing beneficiation ratio of the grinding election system.
1, improve the ore grade, stabilize the magnetic iron occupancy
According to the production of geological exploration data, optimize stope blasting design, be reasonable to match the mine and control the stope ore grade, reducing the share fluctuations of the ore grade and magnetic iron. Besides, optimize the dry separation operations of crushing process, early throw the mixed and surrounding rock and low grade, low share of magnetic iron ore, improve the taste and magnetic iron occupancy of total iron ore into the mill, which is effective to reduce the beneficiation ratio and reduce reactive grinding and separation.
2, stabilize concentrate grade
Fast, accurate and reliable detection of the concentrate grade plays an important role in the on-site production. Use the iron ore slurry online grade analyzer to timely and effectively detect the concentrate grade. Track ore quality with ore properties; you should elect after adopting the mine and before the milling, to the difficult dressing or easy beneficiation; you should early adjust to avoid concentrate quality fluctuations.
3, reducing tailings grade
Strength the maintenance management of twisted cage and crushed ball clean-up work, increase concern to the magnetic separator magnetic declination in the production, ensure the magnetic declination within the scope of the requirements and guarantee the sorting effect and uninstalling effect.
Further, you should take the strength measurement to the roller of magnetic separator to ensure the field strength met the requirements of the drum, and ensure the normal working gap of the separator through the actual measurement. Finally, timely repair the wear flotation-cell.html”>flotation cell to reduce the cell leaking mine.
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