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Ore beneficiation equipment, sand making equipment, crushing equipment and powder grinding equipment, which are widely used in various industries such as metallurgy, mine, chemistry, building material, coal, refractory and ceramics.
Compared with actual situation of the current thermal power plant, this paper studies operation process of coal handling system in thermal power plant. Analyze technical characteristics of coal handling system and operating characteristics of the relevant machinery and equipment. Then, the safe operation of coal handling system and the proper method of the equipment maintenance are summed up.
Dynamic coal mill model based on conservation laws and empirical relations.A model which can replicate the entire milling operation from startup to shutdown.Model with minimum number of parameters; suitable for real time applications.Validation using real time plant data, obtained over a period of one week.Application of the model for online estimation of moisture content in the raw coal using EKF.
Coal mills are bottleneck in coalfired power generation process due to difficulty in developing efficient controls and faults occurring inside the mills. In this paper, a dynamic coal mill model is developed using conservation laws and empirical relations. The physical processes occurring inside the mill such as grinding, pneumatic transport, drying, heat transfer, and classification are modeled. Differential Evolution is used to estimate the model parameters. The model is validated using data obtained from a 500MW plant in India. An application of the proposed model for online estimation of moisture in the raw coal is presented.