Abstract:

Abstract:After a low nitrogen combustion transformation on a certain meagre coal fired power plant,a few problems had come out,such as heating surface of combustion zone is slagging and highly corroded by high temperature,and the content of combustible matter in fly ash is high.In order to control the dynamic field inside furnace,a dynamic field experiment had been conducted under a high cold state,which included three layers of powder blast ring diameter test,variable secondary air volume test and independent wind pressure and vane test. Based on the analysis of test data,the main reason for these problems is determined basically,which brings proposed governance and operation adjustment.

Key words: Keywords:boiler slagging, dynamic field experiment, strong vane, air volume, experimental analysis, adjustment suggestion