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APPARATUS FOR PROVIDING SUPPLEMENTAL PULVERIZED COAL FOR LOAD REGAIN ON A PULVERISED COAL-FIRED STEAM GENERATOR
APPARATUS FOR PROVIDING SUPPLEMENTAL PULVERIZED COAL FOR LOAD REGAIN ON A PULVERISED COAL-FIRED STEAM GENERATOR
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机译:用于提供补充粉煤以保留在粉煤锅炉上的装置
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摘要
An apparatus and method for maintaining the heat input to a pulverized coal-fired steam generator when firing a lower grade coal than for which the pulverizers were designed. A dense phase pulverized coal stream consisting essentially of a mixture of pulverized coal and air having an air-to-coal weight ratio below approximately 1.0 is injected into main pulverized coal stream, thereby providing the necessary supplemental fuel for maintaining the heat input at that full load level.
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