Abstract: The selection of slag removal scheme using steel tape dry slag conveyer for the 1000MW supercritical boiler in CPI Pingdingshan Power Generation Company was introduced. The slag removal scheme using steel tape dry slag cooling conveyer and the slag removal scheme using wet scraper slagoff machine were demonstrated, and the economical and technical performances of the two schemes were compared. According to the principles of safety and reliability, the technical advancement, the economical and reasonable and conservation of water and energy, the scheme using steel tape dry slag conveyer was selected. The practical application shows that better energy conservation effect was obtained by the scheme selection, and the operating cost was reduced too.

Key words: slag removal system, steel tape dry slag conveyer, wet scraper slag-off machine, comparison of schemes, implementation effect