Influence of jig frequency on the separation of coal from the Bonito seam - Santa Catarina, Brazil

被引：18

作者：

Feil, N. Ferreira ^{[1
]}

Sampaio, C. Hoffmann ^{[1
]}

Wotruba, H. ^{[2
]}

机构：

[1] Univ Fed Rio Grande do Sul, Lab Processamento Mineral, BR-91501970 Porto Alegre, RS, Brazil

[2] Rhein Westfal TH Aachen, AMR, D-52064 Aachen, Germany

来源：

FUEL PROCESSING TECHNOLOGY | 2012年 / 96卷

关键词：

Jig frequency; X-ray sorting; Coal preparation; Gravimetric beneficiation;

D O I：

10.1016/j.fuproc.2011.12.010

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The coal from the Barro Branco seam, which is widely used, is situated in the southern region of Brazil. State of Santa Catarina, and it is nearing depletion. The remaining coal from the Bonito seam in the same region is less known and it is characterized by the high percentage of near gravity material and ash content. This peculiarity makes it difficult to treat in the current processing plants, which use jigs for this purpose. This product should have <= 43% ash content for supplying Jorge Lacerda's thermal electric power plant. This study was carried out to investigate other routes and improvements for coal cleaning. Dry processing and jigging tests were conducted in Germany for this purpose. Dry processing was done using an X-ray sorter. Tests were also performed using a batch jig to study the influence of jig frequency on the separation of two coal fractions. It was found that the processing at a specific frequency of pulsation for this coal allows the concentration of a suitable product for the market with yield about 30%. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：22 / 26

页数：5

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