Characteristics of separation with a new-style air-dense medium fluidized bed
Abstract：In order to improve the reliability of air-dense medium separator,the gangue discharged by vibration instead of scraper.The separation characteristics and gangue transport behavior were studied in a home-made new-style air-dense medium fluidized bed.Effects of air flow rate and throwing index on the probable error,separating density and the efficiency of gangue discharging were evaluated.The results show that the separation efficiency was determined by air flow rate and throwing index.The efficiency of gangue discharging increased with the increasing of air flow rate and throwing index.The separating density decreased with the increasing of air flow rate,and tended to stable.Under the suitable conditions,a good transport efficiency and separation efficiency can be achieved with a probable error E value of 0.045 g/cm3,a separating density of 1.77 g/cm3 and an efficiency of gangue discharging of 54%.
Keywords：dry beneficiation of coalair-dense mediumfluidized bedseparation
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)