Abstract: Automatic combustion control （ACC） system， as a core control technology of automatic combustion in waste incineration plants， plays a pivotal role in the stable operation of incinerator. A large MSW incineration power generation project was taken as an example， mainly introduced the effect of introducing Hitachi Von-roll grate ACC system on the operation of incinerator after it was put into operation. The single incinerator of the project has the processing capacity of 750 t/d. The analysis results showed that after ACC was put into operation， the actual deviation rate of main steam evaporation was between 0.90% and 1.80%， far lower than the target deviation rate of 8%. The main steam evaporation fluctuation rate was between 4.76% and 6.41%， lower than 9.05%， when the technology was not running. The stability of incineration system was improved and the maximum mean value of smoke temperature of the high temperature superheater was about 20 ℃， lower than that of the technology without operation. The ACC technology created favorable operation conditions for the anti-corrosion of waste heat boiler and provided support for the stable operation of the whole production line.

Key words: MSW incineration, grate furnace, automatic combustion control, operation rate, high temperature superheater