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.
关键词
空气重介流化床/细粒煤/操作气速/分选效率
Key words
air dense fluidized bed/vibrating fluidized bed/operating gas velocity/separation efficiency/fine coal particles
维普
万方数据