The 15MW WHR project for the 10,000t/d production line of Tongchuan Yaobai has been connected to the grid ahead of schedule 5 months. The project has a high degree of automation and all indicators are in line with the level which is similar with the first-class projects in the world. It is estimated that the annual power generation will reach 102 million kwh, saving 90500 tons of carbon dioxide emission, equivalent to 36300 tons of standard coal, which has good economic and social benefits.