Discussion on reseparation process of coal products in compound dry separator
This study explains the current design issues with the middlings treatment process in dry coal preparation plants,argues for the theoretical need for middlings reseparation,and uses theoretical calculations to examine the differences in separation accuracy and influencing factors between middlings closed-circuit reseparation and open-circuit reseparation.The separation impacts of various middlings separation procedures were computed and compared,and the middlings reseparation technology scheme was established using the raw coal separation at Yushujing Coal Mine as an example.The study demonstrates that reseparation of dry separation middlings improves separation efficiency and clean coal recovery.The open-circuit reseparation scheme in dry separation is thought to offer the most economic benefit when taking into account capital expenditure,plant size,operating costs,and other considerations.
万方数据
维普
