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Journal of System Simulation

Abstract

Abstract: The simulation model of the pulverizing system of a 300 MW lignite oxygen-enriched combustion boiler was developed. And the dynamic and static simulation experiments were completed, the experiments included lignite surface moisture content variation, disturbance of feeder norm speed, flue gas inlet temperature and flow rate etc. The results show that, the model is able to correctly simulate the dynamic process of the system. Moisture reduction has a larger impact on the pulverizing system operating parameters. The mill outlet temperature gets a significant rise, especially when it is less than 30%. When the feeder norm speed or flow rate of inlet flue gas changes, the mill outlet parameters change obviously, especially the moisture of pulverized coal. Thus, the ratio of flue gas flow and coal should be controlled strictly by using re-circulation flue gas to dry high moisture lignite.

First Page

437

Revised Date

2015-07-29

Last Page

444

CLC

TP391.9

Recommended Citation

Gao Jianqiang, Sun Shaodong. Study on Pulverizing System Simulation Model of 300MW Lignite Oxygen-enriched Combustion Boiler[J]. Journal of System Simulation, 2017, 29(2): 437-444.

DOI

10.16182/j.issn1004731x.joss.201702028

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