两年多来,部分水泥企业在管磨机中应用氧化铝耐磨陶瓷研磨体获得了显著的节电效果。实践证明,即使粉磨工艺及入磨物料粒径、易磨性与水分不同,磨机细磨仓采用陶瓷研磨体,一般都会实现4~6 k Wh/t节电效果,是降低水泥生产成本有效的技术...两年多来,部分水泥企业在管磨机中应用氧化铝耐磨陶瓷研磨体获得了显著的节电效果。实践证明,即使粉磨工艺及入磨物料粒径、易磨性与水分不同,磨机细磨仓采用陶瓷研磨体,一般都会实现4~6 k Wh/t节电效果,是降低水泥生产成本有效的技术途径之一。但有的企业在应用过程中,只是与金属研磨体进行简单的更换、替代,对陶瓷研磨体没有科学地选择,对粉磨系统尤其是管磨机内部结构没有进行相应的改进与调整,最终未能达到预期的技术经济指标。事实上,水泥企业在选择、应用氧化铝耐磨陶瓷研磨体时,应从抗压碎强度、应用过程中动态条件下的破损率及磨耗等指标,综合考察其技术性能;必须重视预粉磨和分级设备的能力以及水泥管磨机磨内结构,进行必要的前期改造。展开更多
The chemical composition, structure and thermal stability of the spent FCC equilibrium catalyst from an oil refinery were characterized by XRD, FT-IR, DTA-TG, BET, complete chemical analysis, SEM, and XRF. The spent F...The chemical composition, structure and thermal stability of the spent FCC equilibrium catalyst from an oil refinery were characterized by XRD, FT-IR, DTA-TG, BET, complete chemical analysis, SEM, and XRF. The spent FCC equilibrium catalyst, clay, barium carbonate, and talc were used as the main raw materials to prepare the alumina abrasion-resistant ceramic balls to be used in the powder grinding mill for manufacture of architecture tiles. The results showed that after proper formulation study, the spent FCC equilibrium catalyst could replace industrial alumina to prepare high performance grinding balls. Meanwhile, the various performance indices of the grinding ball could meet the quality standard for similar products, and additionally, the energy saving effect was achieved in the operation of the grinding section, resulting in a successful comprehensive utilization of solid wastes.展开更多
文摘两年多来,部分水泥企业在管磨机中应用氧化铝耐磨陶瓷研磨体获得了显著的节电效果。实践证明,即使粉磨工艺及入磨物料粒径、易磨性与水分不同,磨机细磨仓采用陶瓷研磨体,一般都会实现4~6 k Wh/t节电效果,是降低水泥生产成本有效的技术途径之一。但有的企业在应用过程中,只是与金属研磨体进行简单的更换、替代,对陶瓷研磨体没有科学地选择,对粉磨系统尤其是管磨机内部结构没有进行相应的改进与调整,最终未能达到预期的技术经济指标。事实上,水泥企业在选择、应用氧化铝耐磨陶瓷研磨体时,应从抗压碎强度、应用过程中动态条件下的破损率及磨耗等指标,综合考察其技术性能;必须重视预粉磨和分级设备的能力以及水泥管磨机磨内结构,进行必要的前期改造。
基金the funding provided by the Fujian Provincial Education Department Project(JA09054)the Project administered by the Fujian Normal University(XG-004)+4 种基金the Fujian Provincial Eco- nomic and Trade Commission Project(HE0536)the Open Project of the MOE's Key Laboratory for Medical and Photoelectrical Science and Technology(JYG0821)the Open Project of Hubei Province,the State Nationalities Committee,and the MOE Joint Key Laboratory for Catalytic Material Science(CHCL08008)the Fujian Provincial Testing Fund Project for the Key Laboratory of Highmolecular Materials(FJKL-POLY2010-17)the Training for Excellence Youth Skeleton Teacher of Fujian Normal University(No.2008100228).
文摘The chemical composition, structure and thermal stability of the spent FCC equilibrium catalyst from an oil refinery were characterized by XRD, FT-IR, DTA-TG, BET, complete chemical analysis, SEM, and XRF. The spent FCC equilibrium catalyst, clay, barium carbonate, and talc were used as the main raw materials to prepare the alumina abrasion-resistant ceramic balls to be used in the powder grinding mill for manufacture of architecture tiles. The results showed that after proper formulation study, the spent FCC equilibrium catalyst could replace industrial alumina to prepare high performance grinding balls. Meanwhile, the various performance indices of the grinding ball could meet the quality standard for similar products, and additionally, the energy saving effect was achieved in the operation of the grinding section, resulting in a successful comprehensive utilization of solid wastes.
