煤与矸石的“浮沉”奥秘

Core Viewpoint - The article highlights the innovative technology used by the National Energy Group's Shendong Coal Washing Center to efficiently separate coal from gangue using a special heavy medium, enhancing resource utilization and environmental sustainability [1] Group 1: Technology and Process - The separation process involves adding a special heavy medium to water, allowing coal to float while gangue sinks, thus achieving precise separation [1] - The heavy medium's density is engineered to be between that of coal and gangue, utilizing physical buoyancy for effective sorting [1] - The medium can be recycled, making the process both environmentally friendly and cost-effective [1] Group 2: Operational Efficiency - The technology enables the processing of over ten thousand tons of raw coal daily [1] - The separated coal is cleaner, and the gangue can be repurposed for filling mined-out areas and creating new materials, promoting resource efficiency [1]