保德选煤厂气煤生产工艺优化及系统改造Gas coal production process optimization and system reform in Baode Coal Preparation Plant
刘钦聚
LIU Qinju
摘要(Abstract):
为充分利用保德矿煤的特性,分析焦炭市场对气煤的需求、原煤可选性、现有生产系统局限的基础上,提出优化分选工艺、生产分选气煤产品的方案。该方案重点解决现有系统局限性,实现气煤系统高效稳定生产。基于理论分析,25~0.5 mm末原煤中提取气煤产品的理论产率为11.34%。改造后的气煤系统工艺采用一段出焦二段排矸工艺,系统改造后试运行效果良好,顺利产出质量合格的分选气煤产品。研究表明,入选量为320 t/h时,气煤产率最大为2.5%,改造后年增加经济效益6 538万元,为选煤厂转型发展奠定了基础。
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.
关键词(KeyWords):
气煤;炼焦配煤;工艺优化;两产品重介质旋流器
gas coal;coking coal blending;cleaning process optimization;two-product dense medium cyclone
基金项目(Foundation):
作者(Author):
刘钦聚
LIU Qinju
DOI: 10.13226/j.issn.1006-6772.S10091841
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- 气煤
- 炼焦配煤
- 工艺优化
- 两产品重介质旋流器
gas coal - coking coal blending
- cleaning process optimization
- two-product dense medium cyclone