Research and Application of High-Precision Online Coal Quality Detection Technology for Raw Coal Homogenization in Shaqu Coal Preparation Plant
Abstract：During the intelligent construction process of Shaqu Coal Preparation Plant, high-precision online coal quality detection technology was studied and applied. Accurate online detection of total sulfur and ash content in raw coal entering the silo was achieved. By comparing with laboratory results, the standard errors of total sulfur and ash measurement by the high-precision coal quality online analyzer were 0.05% and 0.65%, respectively. The linear correlation coefficient (R2) between the online analyzer's measurements of total sulfur and ash and the laboratory results reached 0.89 and 0.98, respectively. Based on the total sulfur detection results from the high-precision online coal quality analyzer, a program for raw coal storage by warehouse and blending was designed. After system commissioning, the qualified rate of clean coal within an error range of ±0.25% of the ash target value increased by 6%.
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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：5( 87-91 )