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20150410 fenmeihui

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20150410 fenmeihui

  1. 1. What are the characteristics of fly ash mill? Fly ash from coal combustion flue gas after the closing down of a fine catch ash, coal-fired power plant fly ash is discharged from the main solid waste. China's thermal power plant fly ash is mainly oxide composition of: SiO2, Al2O3, FeO, Fe2O3, CaO, TiO2 and so on. Fly ash is one of the larger displacement of current industrial waste, with the development of the electric power industry, fly ash emissions from coal-fired power plants every year. Lot of fly ash not addressed, it will generate dust, pollution of the atmosphere; if discharged into the river system can cause blockage of the river, and one of the toxic chemicals can also cause harm to humans and creatures. Also available as an admixture of fly ash concrete. Micro aggregate effect of fly ash: fly ash particle size small beads and debris can be equivalent in cement unhydrated cement particles, very tiny beads equivalent lively nanomaterials, can significantly improve and enhance the structural strength of concrete and products to improve the homogeneity and compactness. Re-election in mineral production sharing terms can be summarized as follows; (1) ore pre-selection, in coarse or medium, under fine conditions, pre-selected part of the final tailings, mine was selected to reduce the amount of primary election, reduce production costs; (2) ore primary election will be useful minerals and gangue or separated from the surrounding rock, to get the final concentrate and final tailings (or in mine) (3) to form a coalition with other beneficiation processes, a comprehensive recovery of useful components or coarse, fine particles were treated; (4) dressing, add the recovery process after the main associated elements.

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