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The efficiency of coal mill can be maximized

Instead of maximizing coal fineness improvements only the dynamic classifiers can be used to increase mill capacity while improving the preretrofit fineness level somewhat or the capacity can be maximized by allowing the fineness to drop to lower levels The enhanced capability can be used to increase the pulverizer and boiler capacity with

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    Most of this lost heat can be attributed to the energy needed to evaporate the moisture in the fuel Furthermore highmoisture lowheating value coals result in higher fuel and flue gas flow rates auxiliary power requirements net unit heat rate and increased mill coal pipe and burner maintenance pared to bituminous hard coals

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    To summarize the coal mill controls they may be divided basically into two major categories 1 To control the quality of coal being sent to the burners located on the furnace walls The word quality here means the temperature and fineness of the PF The set temperature values are dependent on the percentage of volatile matter that exists in the main fuel

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  • Pulverizer Fineness And Capacity Enhancements At

    Pulverizer Fineness And Capacity Enhancements At

    Instead of maximizing coal fineness improvements only the dynamic classifiers can be used to increase mill capacity while improving the preretrofit fineness level somewhat or the capacity can be maximized by allowing the fineness to drop to lower levels The enhanced capability can be used to increase the pulverizer and boiler capacity with

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