通过单矿物絮凝试验,考察了搅拌速度、搅拌时间、轴向距离对赤铁矿絮凝行为的影响。结果表明,在搅拌速度300r/min,搅拌时间3min,轴向距离为2.5cm时,絮凝体平均粒径为35.38μm,这为后续的浮选提供了基础,同时对于浮选装置的优化提供了依据。对搅拌速度、搅拌时间、轴向距离三个因素进行正交试验,结果表明,搅拌速度对絮凝体粒径的影响最大,搅拌时间影响最小,并对所得絮凝体的特性进行了研究。 Through the single-mineral flocculation test, the effect of stirring speed, stirring time and axial distance on the flocculation behavior of hematite was investigated. The results showed that the average particle size of the flocs was 35.38μm when the stirring speed was 300r / min, the stirring time was 3min, and the axial distance was 2.5cm, which provided the basis for the subsequent flotation and provided the optimization for the flotation device in accordance with. The orthogonal experiment was carried out on the three factors of stirring speed, stirring time and axial distance. The results showed that the stirring speed had the greatest influence on the floc size and the mixing time had the least impact. The characteristics of the obtained floc were studied.