Abstract: Garbage classification can significantly improve the calorific value of garbage, which puts forward new requirements for the existing technical process and equipment of waste incineration power generation. This paper studies the design scheme and operation of a waste incineration power generation project in Shanghai. The study found that due to the implementation of waste separation, the calorific value of waste and boiler evaporation increased along with the furnace temperature, which led to serious coking in the furnace and an increase in the concentration of pollutant emissions in the flue gas. The paper proposes that improving the furnace structure, increasing the furnace heating surface and using the flue gas recirculation process it can effectively reduce the adverse impact of the increase in calorific value of incoming waste. The methods provide useful reference for waste incineration equipment and process design.

Key words: domestic waste classification, incinerator, waste heat boiler, design optimization