Gas coal production process optimization and system reform in Baode Coal Preparation Plant
LIU Qinju;
Abstract：
In order to make full use of the characteristics of Baode coal, based on the analysis of the demand for gas coal in the coke market, the selectivity of raw coal, and the limitations of existing production systems, the coal washing and processing center proposed a scheme to optimize the process and produce gas coal products.The program focused on solving the problems of overcoming the limitations of existing systems and achieving efficient and stable output of gas coal.Based on theoretical analysis, the theoretical yield of gas coal products extracted from raw coal at 25 to 0.5 mm is 11.34%.The modified gas coal system process adopts a two-stage decanting process.After the system was reformed, the trial operation was carried out well, and the quality of the cleaned coal products were successfully produced.The research shows that when the amount of washing is 320 t/h, the gas coal yield is up to 2.5%,and the annual economic benefit after the transformation is 65.38 million yuan, which lays a practical foundation for the transformation and development of the coal preparation plant.
Key Words： gas coal;coking coal blending;cleaning process optimization;two-product dense medium cyclone
Foundation:
Authors: LIU Qinju;
DOI: 10.13226/j.issn.1006-6772.S10091841
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