DOI: 10.11799/ce202412045
Application of intelligent separation technology for lignite in Shengli No.1 Open-pit Mine
SHE Changchao
LI Wei
SONG Renzhong
LI Yong
SHI Guangyang
LU Yanting
HOU Xingye
ZHANG Shuhe
TONG Xiaolei
Abstract：As a young aged coal with low degree of coalification with high moisture content,low calorific value as well as high volatile matter and argillization,the current wet separation process has poor adaptability to it,which will not only worsen the degree of argillization,but also further increase its water content,and it is urgent to study the applicability of dry separation to lignite.Based on the successful application of T104 in other coal grades,the high-quality components and gangue components in lignite were identified according to the characteristics of lignite,so as to explore the applicability of X-ray-based anhydrous sorting to lignite.The No.5 lignite in Shengli No.1 coalfield was studied using the X-ray based T104 system.According to the small sample test,when the content of coal or gangue in the mixed gangue coal was higher than 80%,the algorithm recognition is in a critical state and there is a notable deviation;and with an improved vector machine algorithm,the optimal sorting parameters could be automatically selected.While in the large-scale on-site operation,the system can precisely select the clean coal with high calorific value,low ash content,and relatively low sulfur content.
Keywords：lignite separationhigh-water coalX-raygangue identification in lignite
Publication Date：2024-12-31
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 78-83 )