Boiler operation method and boiler equipment
A method of operation and boiler technology, which is applied to lighting and heating equipment, combustion equipment, combustion methods, etc., can solve problems such as the reduction of heat storage rate of furnaces, and achieve the effect of suppressing the reduction of heat storage rate
Active Publication Date: 2020-09-25
KOBE STEEL LTD
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Problems solved by technology
[0006] However, in the above-mentioned conventional boiler operation method, although the adhesion of ash is suppressed, the heat storage rate of the furnace may decrease.
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[0079] The above-mentioned embodiments do not limit the configuration of the present invention. Therefore, in the above-mentioned embodiment, based on the description of this specification and technical common sense, the constituent elements of each part of the above-mentioned embodiment may be omitted, replaced or added, and all of these should be interpreted as belonging to the scope of the present invention.
[0080] The boiler equipment and the operation method of the boiler equipment can also be applied to boiler equipment used in other than thermal power plants.
[0081] In addition, in this boiler facility, the structure of the boiler may be different from the above-mentioned embodiment.
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This method for operating a boiler includes: a step of acquiring ash content of a plurality of kinds of solid fuels and specific surface areas of the plurality of kinds of solid fuels after incineration; and a step of determining a mixing ratio of the plurality of kinds of solid fuels on the basis of the ash content and the specific surface area after incineration of each of the plurality of kinds of solid fuels acquired in the step of acquiring ash contents and specific surface areas so that the specific surface area after incineration of the entire mixture of the plurality of kinds of solid fuels is less than or equal to a reference value.
Description
Technical field [0001] The present invention relates to a boiler operating method and boiler equipment. Background technique [0002] For example, a boiler that burns a solid fuel such as coal generally includes a furnace that burns the solid fuel by a burner or the like, and a plurality of heat transfer tubes that are arranged vertically in the furnace to exchange heat. For example, in a boiler used in a thermal power plant, the heat transfer tube has a lower heat transfer part that performs heat exchange in the primary heater, primary reheater, and economizer arranged in the lower part of the furnace; and The upper heat transfer part of the secondary heater, tertiary heater, final heater and secondary reheater in the upper part of the furnace for heat exchange. [0003] Among such boilers, for example, in a pulverized coal boiler that uses coal as a solid fuel, ash in the combustion gas generated by the combustion of coal adheres to the furnace wall and heat transfer tube of the...
Claims
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IPC IPC(8): F23C1/00F23K1/00F23N1/00F23N5/00
CPCF23C1/00F23K1/00F23N1/00F23N5/00
Inventor 松宫知朗秋山胜哉
Owner KOBE STEEL LTD