Incineration treatment system and method

The invention relates to the technical field of incineration treatment, and discloses an incineration treatment system and method. The incineration treatment system comprises an incinerator used for incinerating to-be-incinerated substances and a pulverized coal boiler used for secondary combustion of smoke generated by the incinerator. The pulverized coal boiler is provided with a smoke inlet. The incinerator is provided with a smoke outlet. The smoke inlet communicates with the smoke outlet through a smoke discharging pipeline. The to-be-incinerated substances include sludge and/or waste and/or biomass. According to the incineration treatment system and method, the pulverized coal boiler is used for secondary combustion of the smoke generated by the incinerator, so that the smoke combustion time is prolonged; when sludge and waste are combusted, the combustion temperature during secondary combustion of the smoke is increased so that harmful gas such as dioxin in the smoke can be completely decomposed, and t