An environmental protection company in Shanghai is mainly engaged in the business of hazardous waste treatment and resource utilization. In 2020, it undertook the construction of 100 t/d solid (hazardous) waste incineration comprehensive hazardous waste in Fuyang, Anhui Province, aiming to realize the harmless disposal of hazardous waste. In view of the strong technical capabilities of Henan Zhengzhou Mining Machinery Co., Ltd. and its good reputation in the industry, the two parties cooperated again. The design and manufacture of the solid (hazardous) waste incineration rotary kiln and secondary combustion chamber equipment used in this project were once again contracted by Henan Zhengzhou Mining Machinery Co., Ltd. The two parties signed a purchase contract in April, and the equipment was installed and put into operation in September.

The process used for hazardous waste incineration is that the hazardous waste completes the process of water evaporation, volatile analysis, ignition and combustion in the rotary kiln. The ash part is discharged from the bottom of the secondary combustion chamber, and the generated flue gas enters the secondary combustion chamber. The room is mixed with secondary combustion air, heated to above 1100°C, and the residence time is more than 2 seconds to completely complete the decomposition of dioxins.