WANG Li-hua,Lü Guo-jun,WANG Fei,et al.Research on Energy Saving and Consumption Reduction of Sludge Drying and Incineration System[J].China Water & Wastewater,2021,37(4 4):29-36.
Research on Energy Saving and Consumption Reduction of Sludge Drying and Incineration System
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
4 4
Page:
29-36
Column:
Date of publication:
2021-02-17
- Keywords:
- sludge; drying; incineration; energy balance; energy loss
- Abstract:
- Energy balance models of sludge drying system, incineration and waste heat utilization system and flue gas treatment system were established based on a sludge drying and incineration project. According to the operation data and on-site analytic data, the main energy loss points in the system were determined including the heat loss of the carrier gas washing water of drying system, the heat loss of the drying machine due to radiation, the heat loss of the incinerator and the waste heat utilization system due to radiation, and the sensible heat loss of the washing water of flue gas. According to these main energy loss points, this paper proposed an energy saving and consumption reducing scheme for the whole process. Firstly, the operating parameters are adjusted to improve the efficiency of drying machine, incineration and waste heat utilization system to reduce the heat loss. Then, through the usage of waste heat, drying carrier gas and flue gas in front of scrubbing tower, the heat loss of carrier gas washing sewage and the flue gas washing water can be reduced.
Last Update:
2021-02-17