Experimental study on influencing factors of NO_x emission in iron ore sintering process

Abstract

Through the sintering pot test, the effects of coke breeze ratio, sinter mixture moisture, sinter mixture basicity and material bed depth on NOx emission were studied. The results show that reducing the ratio of coke breeze is beneficial to reducing NOx emission under the condition of certain sintering time and not affecting the quality of sinter. At the same time, adopting low moisture and deep bed sintering can also achieve the purpose of reducing NOx emission. The basicity of sinter mixture has little effect on NOx emission.

Keywords

• iron ore sintering, NO_x emission
• coke breeze ratio
• basicity
• bed depth