管磨机超细粉磨系统异常状况分析及对策  

Analysis and countermeasures of abnormal situation of ultrafine grinding system of tube mill

作　　者：邹伟斌 Zou Weibin(Cement Professional Committee of China Building Materials Industry Economic Research Association,Beijing 100024)

机构地区：[1]中国建材工业经济研究会水泥专业委员会,北京100024

出　　处：《新世纪水泥导报》2023年第1期34-43,I0014,共11页Cement guide for new epoch

摘　　要：采用较大长径比(L/D>4.0)的管磨机开路超细粉磨系统或配置超细选粉机的闭路超细粉磨系统,将冶金、电力以及化工等行业排出的工业废渣或者用天然硅铝质材料实施超细粉磨。在工业废渣超细粉磨过程中,因管磨机内部结构适应能力差,仓长比例与研磨体级配选择不合理,“磨内磨细”能力不足,最终导致粉体颗粒粒径偏粗、活性指数偏低等异常状况。对于管磨机超细粉体制备系统存在的相关技术问题,提出相应的技术改进措施。Open-circuit ultrafine grinding system of tube mill with large aspect ratio(LID>4.0)or closed-circuit ultrafine grinding system with ultrafine powder separator are used to grind industrial waste discharged from metallurgical,electrical and chemical industries or natural silica-aluminium materials.In the process of superfine grinding of industrial waste residue,abnormal conditions such as coarse particle size and low activity index ultimately result from poor adaptability of internal structure of pipe grinder,unreasonable selection of storehouse length ratio and grinding body grading,and insufficient grinding ability in internal grinding.Relevant technical problems existing in the preparation system of tube grinder ultrafine powder are put forward with corresponding technical improvement measures.

关 键 词：管磨机 内部结构 研磨体级配 磨内磨细 超细选粉机 比表面积 颗粒粒径 活性指数 

分 类 号：TQ172.632.1[化学工程—水泥工业]