Comparative Study of Separation Performance of a Spiral and Dense-medium Cyclone on Cleaning Coal. Issue 2 (1st February 2021)

• Record Type: Journal Article
• Authors: Ma, Guangxi; Bu, Xiangning; Xie, Guangyuan; Peng, Yaoli; Sha, Jie; Xia, Wencheng; Wu, Erdong
• Is Part Of: International journal of coal preparation and utilization. Volume 41:Issue 2(2021)
• Page Start: 108
• Page End: 116
• Publication Date: 2021-02-01
• Subjects: Spirals -- dense-medium cyclones -- fine coal -- separation performance -- Fuerstenau upgrading curves; Coal preparation -- Periodicals; Coal -- Research -- Periodicals; 662.62
• DOI: 10.1080/19392699.2018.1464001
• Languages: English
• ISSNs: 1939-2699

Abstract

ABSTRACT: Spiral separators and dense-medium cyclones (DMCs) are widely used for separation of −1 + 0.125 mm fine coal. In this study, testing was carried out using −1 + 0.125 mm fine coal with low near density material to produce a concentrate, using both a spiral and DMC. Clean coal with 8.31% ash content was obtained with the spiral at 37.39% yield, 47.76% combustible recovery and 0.150 Ep value. For the DMC, the combustible recovery of clean coal at the ash of 8.31% ash was improved to 80.84% at 62.98% yield, and 0.118 Ep value. The advantage of the DMC is further proved by analysis using Fuerstenau upgrading curves.