Efforts for Developing Clinker Deposits Monitoring Technology in Pulverized Coal-Fired Boiler

Abstract

In order to establish a monitoring method for clinker deposits during the operation of pulverized coal-fired boilers, we have been developing a monitoring technology by using strain gauges and a thermal image camera which is not affected by flames and ash particles. We removed the influence of temperature fluctuation and vibration from strain gauge data and applied the specific medium infrared rays as the measurement wavelength in the observation by the thermal image camera. As a result, the changes of the clinker weight and the clinker distributions on the panels have been monitored successfully.