Design and application of intelligent control system for heavy me-dium separation in Handan Coal Preparation Plant
TONG Junchun
Abstract：In order to address issues such as reliance on manual experience in density control of the heavy medi-um separation system,aging detection equipment,and delayed parameter feedback,the Handan Coal Prepara-tion Plant has implemented an intelligent upgrade of its heavy medium separation system.A three-layer architec-ture intelligent control system for heavy medium separation—comprising the equipment layer,control layer,and management layer—was established.New equipment,including density meters and magnetic content analyzers,was deployed,and an intelligent regulation model for suspension density was developed,enabling dual-mode manual and automatic control.After the system was put into operation,clean coal in middlings reduced by 0.5 percentage points,coal in refuse reduced by 1.6 percentage points,medium consumption decreased by 0.15 kg/t,and the fluctuation of suspension density was controlled within±0.005 g/cm3.The system realizes intelligent setting and regulation of suspension density,completing the transformation from automation to intelligence.This lays a solid foundation for further enhancing the overall intelligence level of the plant.
Keywords：Heavy medium separationheavy medium separation intelligent control systemdensity controlclean coal ash contentclean coal in middlingscoal in refusemedium consumption
Publication Date：2025-08-31
Online Publishing Date：2025-12-29(First online date of this platform, not the publication date of the document)
Pages：6( 92-97 )