东鞍山铁矿矿石属鞍山式含铁石英岩,矿物成分比较简单,其中主要金属矿物是赤铁矿等,呈致密条带状结构,浸染粒度很细,一般为0.04～0.2毫米之间,最细为0.004毫米,其中0.02～0.10毫米粒级占80%,需细磨至-0.074毫米占80～90%才能单体分离。由于粒度细,含泥多,比表面积大,加之浮选药剂的影响,所以浮选铁精矿具有“细、泥、粘”的特点,给脱水 Anshan iron ore ore is Anshan iron-bearing quartzite, the mineral composition is relatively simple, the main metal minerals are hematite, etc., was dense strip structure, disseminated fine particle size, usually 0.04 to 0.2 mm, the most Fine 0.004 mm, of which 0.02 to 0.10 mm particle size accounted for 80%, to be finely ground to -0.074 mm accounted for 80 to 90% to monomer separation. Flotation concentrate has the characteristics of “fine, mud and sticky” due to its fine particle size, mud content, large specific surface area and the influence of flotation reagents,