关键词: 铁矿, 选矿厂设计, 磁选, 综合利用

Abstract: In order to efficiently develop and utilize an iron ore resource in Huaibei，based on the study of ore properties，beneficiation test and concentrator design were carried out. The stage grinding-low intensity magnetic separation process is recommended in the beneficiation test，and the iron concentrate with iron grade of 65.79% and recovery of 93.55% can be obtained. The design of the concentrator for the iron mine adopts two stage closed circuit crushing，wet preconcentration-two stage grinding，stage grinding and separation process. Under the condition of one stage grinding fineness -0.074 mm 55% and two stage grinding fineness -0.074 mm 90%，the iron concentrate with iron grade of 65.00% and recovery rate of 93.55% can be obtained through three stage magnetic separation operation. The comprehensive utilization of dry separation waste rock and tailings improves the comprehensive benefits of the concentrator.

Key words: iron ore, concentrator design, magnetic concentration, comprehensive utilization