CFB combustion control system for multiple fuels

Abstract

JFE Engineering has developed a new combustion control system that is capable of achieving the stable combustion for various multi-waste-fuels in the circulating fluidized bed boiler (CFB). This system has advanced control functions with a rule-based type multipurpose control. This device is applied to furnace temperature control, exhaust gas stabilization control, and blowing control of slaked lime for the reduction of HCl. The application test was conducted in two CFB plants and the effect was confirmed that the furnace temperature and exhaust gas condition could be stabilized, and the fun driven power could be reduced by the reduction of combustion air. Copyright © 2007 JFE Steel Corporation.