Research on the effect of air-heavy medium vibrating fluidized bed on fine coal separation in Heishan Open-pit Mine
This paper presents the sorting effect of air dense medium fluidized bed on coal from Montenegro open-pit coal mine with particle sizes ranging from-5.5 mm to+0.5 mm.The coal particles are divided into six size grades.Three different ratios of heavy medium to coal and vibration conditions were set to conduct sorting experiments,and the optimal operating conditions were determined.The results show that an air velocity of 1.1 to 1.4 times the minimum fluidization air velocity is the best operating velocity,providing the best sorting effect for coal in all tested particle size ranges.In some cases,vibration and heavy medium can enhance sorting efficiency.
air dense fluidized bedvibrating fluidized bedoperating gas velocityseparation efficiencyfine coal particles
万方数据
维普
