When smelting reduction and alloying of chromium and nickel concentrate with C-Si-Al as compound is conducted in a plasma induction furnace, the alloying target value of 18% Cr and 9% Ni could be achieved in 20 min, the recovery rate of Cr and Ni would reach 82%-85% and 95%-98%respectively.

Based on the target analysis of the operation optimization for a power plant, and according to the structure and designing thinking of Decision Support System (DSS), the overall structure of the Operation Optimization Decision Support System (OODSS) is studied and the decision of the optimization value as a key question of the operation optimization is deeply studied.

Then language association rule mining algorithm is used to mine optimal target value to guide operation optimization.

One of the methods to improve the unit efficiency is to determine the optimal target values of main controllable parameters exactly.

Results and Conclusion:The chemical structures of target compounds were confirmed by IR,1H-NMR and element analysis.

Rationally fixing operation optimization target values of fossil fired power sets is the precondition and also forms the basis for effectuating performance evaluation and operation optimization.

Hence united front workers must recognize the core goal,change traditional management concept,realize the cultural value goal transition,and grasp the strategic thought to accomplish the task.