潮湿细粒煤炭筛分抗堵机理及参数优化研究
Anti-clogging Mechanism and Parameter Optimization of Wet Fine-grained Coal Screening
聂首维1
作者信息
- 1. 山西新景矿煤业有限责任公司,山西阳泉 045200
- 折叠
摘要
深部筛分是实现潮湿细粒煤高效分级的重要途径,但会出现筛面堵塞的问题,刚柔耦合弹性筛分方法被用于克服堵塞.探究了进料速率和物料含水率对筛分性能的影响及相关机理,对 3mm湿细粒煤进行刚柔耦合弹性筛分与刚性筛分对比实验,进一步明确了筛分过程中颗粒的空间分布规律.当外部含水率为 11.31%时,筛分效率达到83.15%,总错配物率为6.40%,有效提高了潮湿细粒煤的筛分性能.
Abstract
Deep screening is an important way to realize efficient classification of wet fine-grained coal,but the problem of screen surface clogging will occur,the rigid-flexible coupling elastic screening method has been applied to overcome the clogging.This paper explored the influence of feed rate and material moisture content on the screening performance and the related mechanism,and carried out the comparison experiments between the rigid-flexible coupling elastic screening and the rigid screening for 3 mm wet fine-grained coal,to further clarify the spatial distribution law of particles in the screening process.When the external water content is 11.31%,the screening efficiency reaches 83.15%,and the total mismatch rate is 6.40%,which effectively improves the screening performance of wet fine-grained coal.
关键词
潮湿细粒煤/弹性筛选/刚柔耦合/进料速率/含水率Key words
wet fine-grained coal/elastic screening/rigid-flexible coupling/rate of feed/moisture content引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据