Ash fusion temperature estimation device and ash fusion temperature estimation method
A technology of ash melting temperature and melting temperature, which is used in the estimation of melting temperature and can solve problems such as a lot of time
Active Publication Date: 2021-05-25
MITSUBISHI HEAVY IND LTD
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Problems solved by technology
[0009] As described above, in order to predict the adhesion of ash generated by the combustion of various fuels (target fuels described later), when the melting temperature is evaluated by the above-mentioned melting test method, etc., until the evaluation of the melting temperature is obtained It takes a lot of time until the result (measured value)
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[0124] Hereinafter, several embodiments of the present invention will be described with reference to the drawings. However, dimensions, materials, shapes, relative arrangements, etc. of components described in the embodiments or shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative examples.
[0125] For example, expressions such as "in a certain direction", "along a certain direction", "parallel", "orthogonal", "center", "concentric" or "coaxial" indicating relative or absolute configurations not only mean strictly Such an arrangement also means a state in which there is a tolerance or the angle and distance are relatively displaced to the extent that the same function can be obtained.
[0126] For example, expressions such as "same", "equal", and "homogeneous" that indicate the state of equality of things not only indicate a state of strict equality, but also a state of differences such as tolerances or the degree tha...
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Provided is an ash melting temperature estimating device capable of rapidly estimating the melting temperature of ash generated by combustion of a plurality of fuels. The apparatus includes: a theoretical ash composition calculation unit having a mixing ratio acquisition unit for acquiring a mixing ratio of a plurality of fuels included in the target fuel, and obtaining a plurality of fuel correspondences composed of ash compositions of the plurality of fuels included in the target fuel A fuel-corresponding ash composition acquisition unit for ash composition, and a theoretical ash composition that calculates an ash composition related to a specific ash component of ash when a plurality of fuels are mixed at a mixing ratio based on a mixing ratio and a plurality of fuel-corresponding ash compositions a calculation unit for the The model calculates the estimated value of the ash melting temperature of the target fuel corresponding to the theoretical ash composition.
Description
technical field [0001] The present invention relates to a method of estimating the melting temperature of ash generated by combustion of various fuels. Background technique [0002] There are known boilers that co-fire fossil fuels such as coal and heavy oil, woody biomass, and waste solid fuels (RDF, RPF) produced from waste, and that burn high-grade coal and low-grade coal. A coal-fired boiler that co-fires two fuels, such as a co-fired boiler (for example, Patent Documents 1 to 2). From the viewpoint of environmental issues and resource issues, it is desirable to have a high co-firing ratio of recycled fuel and low-grade coal, but if the co-firing ratio increases, ash (combustion ash) generated by co-firing tends to adhere to the boiler The furnace wall (furnace), heat pipe, flue, etc., may cause problems such as heat conduction resistance, furnace bottom damage caused by falling large pieces of slag, and burner blockage. [0003] In general, the adhesion of ash to the ...
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IPC IPC(8): G06N20/00C10L5/02C10L5/44
CPCC10L5/44C10L5/02G06N20/00Y02E50/10Y02E50/30
Inventor 桥本裕太土山佳彦杉山友章青田浩美新川惠理子
Owner MITSUBISHI HEAVY IND LTD