On-line soft measurement method for coal quality fluctuation state

Abstract

The invention discloses an on-line soft measurement method for a coal quality fluctuation state. On the basis of real-time operation state monitoring data of a coal milling machine, on-line raw coal moisture calculation is carried out according to a heat balance principle, thereby realizing on-line evaluation on the drying capacity of the coal milling machine. Therefore, the accuracy and pertinence of operation staff and scheduling staff adjustment can be improved.

Description

technical field [0001] The invention relates to an online soft measurement method for coal quality fluctuation state, specifically a method for online calculation of raw coal moisture based on the real-time operation state monitoring data of a coal mill and using the heat balance principle. Background technique [0002] At present, for the coal quality state characteristic indicators such as raw coal moisture, it is mainly obtained by power plant operators who regularly sample and test the raw coal every 8 hours and every day. There are two shortcomings in the analysis results of this method: [0003] First of all, since the raw coal sampling process is a random process, the representativeness of the sample may not be guaranteed; [0004] Secondly, since the raw coal testing process is carried out regularly every day, and the minimum cycle also takes 8 hours, it is impossible to analyze the coal quality composition online in real time, and there is a certain deviation in rep...

AI Technical Summary

Problems solved by technology

[0003] First of all, since the raw coal sampling process is a random process, the representativeness of the sample may not be guaranteed;

[0004] Secondly, since the raw coal testing process is carried out regularly every day,

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