Selection Analysis of 600 MW Supercritical Anthracite-Fired Boiler

doi:10.3969/j.issn.1000－7229.2014.01.014

Abstract

Abstract:

In order to better solve the technical problems during the selection of anthracite-fired boiler such as ignition, stable combustion and burnout, the configuration and operation performance were analyzed and compared between 600 MW supercritical W shaped flame boiler and supercritical circulating fluidized bed （CFB） boiler combined with practical engineering application. The research results show that, W shaped flame boiler has good combustion performance when burning anthracite, but has higher concentration of NOx at furnace outlet, and high temperature corrosion problems of heating surface cannot be ignored. However, the NOx concentration at furnace outlet is relatively low and the combustion is stable for anthracite-fired CFB boiler, but the burning performance needs to be improved. It is suggested that supercritical CFB boiler should be preferred option for 600 MW anthracite-fired supercritical boilers, and it is necessary to improve the burning performance through reasonable technical way.

Key words: supercritical boiler, boiler type-selection, W shaped flame boiler, supercritical circulating fluidized bed （CFB） boiler, stable combustion, anthracite coal

SUN Xianbin. Selection Analysis of 600 MW Supercritical Anthracite-Fired Boiler[J]. ELECTRIC POWER CONSTRUCTION, 2014, 35(1): 74-77.

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