What is iron ore beneficiation?
Iron ore is an important raw material for steel production enterprises. In most cases, iron ore with a grade of less than 50% requires ore beneficiation before smelting and utilization.
Natural ore (iron ore) is gradually selected for iron through procedures such as crushing, grinding, magnetic separation, flotation, and gravity separation. In view of the existing characteristics of China’s iron ore, and the higher requirements of the iron and steel industry for iron concentrates, new challenges have been presented to Chinese beneficiaries. Therefore, there are deeper development requirements for the beneficiation technology of China’s metallurgical mines, and what follows is to promote the further improvement of beneficiation equipment.
The beneficiation process should be as efficient and simple as possible, such as the development of energy-saving equipment, and the most suitable process to achieve the best results. In the concentrator, the equipment investment, production cost, power consumption and steel consumption of crushing and grinding operations often account for the largest proportion. Therefore, the calculation and selection of crushing and grinding equipment and the quality of operation management are to a large extent Determines the economic benefits of the beneficiation plant.
Among the iron ore resources in China, the easily beneficiated iron ore resources are declining. Iron ore resources are characterized by more lean ore, less rich ore, and more associated minerals. The composition of the ore is relatively complex, and the grain size of the ore is mostly finer, which causes certain difficulties in beneficiation. . Technically speaking, there is an urgent need for advanced technology, advanced technology and advanced equipment to promote the efficient development and utilization of poor iron ore resources. In terms of economic benefits, for the production of lean iron ore, the concentrator must expand the scale of production, expand the processing capacity of the raw ore, save energy and reduce consumption, and reduce the cost of beneficiation and processing, in order to have better economic benefits. Before the ore enters the grinding operation, a part of the gangue minerals mixed into the ore are pre-selected and eliminated to realize the early loss of the ore, in order to improve the grade of the raw ore.
Using the optimized pre-selection process of ultra-fine crushed and coarse-grained tailings, this is an effective method for lean iron ore to increase production capacity, save energy and reduce consumption, and create better economic benefits.What is iron ore beneficiation?