An Investigation into the Enrichment of Coal Wastes of Western Lignite Company (WLC) by Physical and Physico-Chemical Methods

Q4 Engineering

Scientific Mining Journal Pub Date : 2023-02-28 DOI:10.30797/madencilik.1111260

A. Uçar, O. Sahbaz, N. Ediz, Sevgi Karaca, İsmail Göktay Edi̇z

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Abstract

Mechanical excavation and the successive processes coal production are the main reason for the occurrence of fine waste coals. These wastes are normally discharged without being processed from coal washing plants. Therefore, it causes not only economic loses but also severe environmental problems. It was attempted to enrich waste coals of WLC by using physical and physico-chemical methods and the results were compared. From the tests the optimum carbon content and the combustible recovery values were obtained as 85% and 97%, respectively, when heavy media and the coarse particle size group were chosen. From the tests with the medium particle size group using spiral and Knelson separators, combustible recovery of up to 90% was reached together with a carbon content of 80%. Moreover, a carbon content of 86.5% with a combustible recovery of 56.6% was obtained by using MGS. In the fine particle size group, the highest combustible recovery was obtained by using spiral and Knelson separators. The highest carbon content in the fine particle size group was obtained through MGS and Jameson Cell.

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西部褐煤公司煤矸石的物理富集和物化富集研究

机械开挖及连续采煤工艺是产生细废煤的主要原因。这些废物通常未经处理就从洗煤厂排放出去。因此，它不仅造成经济损失，而且造成严重的环境问题。尝试用物理法和物理化学法对废煤进行富集，并对富集结果进行了比较。试验结果表明，在选择重介质和粗粒度组时，最佳含碳量为85%，可燃回收率为97%。使用螺旋分离器和Knelson分离器对中粒径组进行试验，可燃回收率高达90%，含碳量为80%。此外，采用MGS可获得含碳量为86.5%，可燃回收率为56.6%。在细粒度组中，采用螺旋分离器和Knelson分离器可获得最高的可燃回收率。细粒径组的含碳量以MGS法和Jameson细胞法最高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Scientific Mining Journal Engineering-Industrial and Manufacturing Engineering

CiteScore

0.60

自引率

0.00%

发文量

期刊介绍： Scientific Mining Journal, which is published i n open access electronic environment and i n printed, is a periodical scientific journal of Union of Chambers of Turkish Engineers and Architects Chamber of Mining Engineers. The name of the journal was "Mining" until June 2016 and it has been changed to "Scientific Mining Journal" since September 2016 because it can be confused with popular journals with similar names and the ISSN number has been updated from 0024-9416 to 2564-7024. Scientific Mining Journal, published four times a year (March-June-September-December), aims to disseminate original scientific studies which are conducted according to the scientific norms and publication ethics at national and international scale, to scientists, mining engineers, the public; and thus to share scientific knowledge with society. The journal is in both Turkish and English. The journal covers theoretical, experimental, and applied research articles, which reflects the findings and results of an original research i n the field of mining engineering; review articles, which assess, evaluates, and interprets the findings of a comprehensive review of sufficient number of scientific articles and summarize them at present information and technology level; technical notes, which may be defined as a short article that describes a novel methodology o r technique; a case studies, which are based on the theoretical o r real professional practice and involves systematic data collection and analysis.