Deep reduction tests of antelope iron ore in Linjiang area

作者：Li Yan Jun; Han Yue Xin; Zhu Yi Min^*; Liu Jie

来源：Journal of Northeastern University, 2012, 33(1): 137-140.

• Coal blending
• Coal particle size
• Content of Fe
• Direct Reduction
• Iron particle
• Jilin Province
• Optimal conditions
• Reduction process
• Reduction temperatures
• Standard requirements

Deep reduction single factor condition tests on antelope iron ore with the grade of 34.79% from Linjiang area in Jilin Province were conducted, and effect of the factors such as reduction temperature, reduction time and thickness of feed layer on deep reduction and magnetic separation result was investigated. The results indicated that reduction process is considerably influenced by reduction temperature and reduction time. Optimal conditions are as follow: reduction temperature 1275°C, reduction time 50 min, thickness of feed layer 30 mm, excess coal blending multiples 2.0, reduction coal particle size -1.5 mm, and ore particle size size -2.0 mm. Under these conditions, final product with content of Fe 93.05%, recovery 85% and metallization rate 91.29% is obtained, which meets the H92 standard requirement of direct reduction iron product of steelmaking field in China.

• 出版日期2012
• 单位东北大学