CAJ | 학술논문

对鲕状赤铁矿的磨矿工艺进行了优化，并研究了六偏磷酸钠、三聚磷酸钠、Z-164D三种助磨剂对鲕状赤铁矿磨矿效率的影响。结果表明：在相同磨矿条件下，当磨矿浓度80％时，三种助磨剂在最佳用量时可使磨矿产品中-0．074mm粒级含量分别提高30．25、29．83和30．15个百分点；但与不添加助磨剂时的最佳磨矿效果（此时，磨矿浓度70％）相比，产品中-0．074mm粒级含量仅分别提高了0．72、0．30和0．62个百分点。在此基础上，研究了助磨剂对鲕状赤铁矿磨矿的矿浆粘度、磨矿产品形貌和磨矿产品表面硬度等变化的作用，揭示了助磨剂提高鲕状赤铁矿磨矿效率的作用机理。
대이상적철광적마광공예진행료우화，병연구료륙편린산납、삼취린산납、Z-164D삼충조마제대이상적철광마광효솔적영향。결과표명：재상동마광조건하，당마광농도80％시，삼충조마제재최가용량시가사마광산품중-0．074mm립급함량분별제고30．25、29．83화30．15개백분점；단여불첨가조마제시적최가마광효과（차시，마광농도70％）상비，산품중-0．074mm립급함량부분별제고료0．72、0．30화0．62개백분점。재차기출상，연구료조마제대이상적철광마광적광장점도、마광산품형모화마광산품표면경도등변화적작용，게시료조마제제고이상적철광마광효솔적작용궤리。
Based on optimizing the grinding process of oolitic hematite , the effects of sodium hexametaphosphate ,sodium tripolyphosphate and Z-164D on the grinding efficiency of oolitic hematite were studied . And the results showed , keeping other grinding parameters as constant and the grinding concentration being 80% ,the contents of -0 .074 mm in the grinding products were increased by 30.25 , 29.83 and 30.15 percentage points respectively under the proper dosages of all three kinds of grinding aids . However ,comparing with the optimal grinding conditions without grinding aids ,the contents of -0.074 mm in the grinding products were only increased by 0.72 ,0.30 and 0.62 percentage points respectively when the grinding concentration was 70% .On the basis of experiments and measurements ,the changes of pulp viscosity ,the particle morphology and the surface hardness of grinding products were studied and the mechanisms of improving the grinding efficiency of oolitic hematite by grinding aids were revealed .