Key Technology Research and Development of Intelligent Control for Heavy Media Separation and Demonstration
Abstract：To address the issues of large fluctuations in the ash content of clean coal, strong control lag, and high dependence on manual operations in the heavy media separation process, an ash content closed-loop intelligent control system based on production process big data is proposed. The intelligent control system for heavy media separation improves the accuracy of ash detection through multi-coal type raw coal intelligent identification technology, combined with a parameter self-adaptive mechanism of the gamma-ray online ash meter (dynamic correction of slope/intercept) and an ash data cleaning algorithm. It innovatively constructs a dual-loop control architecture of 'density inner loop - ash outer loop', using fuzzy reasoning and PID collaborative algorithms, and implements a dual-density control strategy of fast adjustment before the pump and slow adjustment inside the bucket to achieve rapid adjustment of the slurry density. At the same time, it proposes a solution to the time delay in heavy media control based on material capacity and transmission, achieving real-time control of the ash content of heavy media clean coal.
Machine-generated Keywords：
Publication Date：2025-10-30
Online Publishing Date：2025-11-21(First online date of this platform, not the publication date of the document)
Pages：8( 57-64 )