An analysis on the coke samples taken at tuyere level has been carried out, the results showed that coke degradation is strong when pulverized coal rate (PCR) is over 200 kg/t.

At the operating COREX~ plants long-term coke-less operation campaigns or operations with low amount of low quality coke can be realized.

Study on improving the quality of coke by making rational use of coal resources and coal;

The production costs can be reduced,and the quality of coke can be improved by full using the local coal resources and optimizing coal blending.

Method for prediction of coke quality;

Analyse the mixing coal optimizing and improving coke quality;