摘要：为提高传统球磨法生产云母氧化铁的产品质量,设计并实验新的生产工艺,采用冲击磨对云母氧化铁原矿进行粉碎,用多转子分级机进行分级,用布袋除尘装置进行除尘;通过变换冲击磨的工作条件,得到不同粒度和粒度分布的云母氧化铁粉体产品;对产品进行粒度分析,测试其应用在涂料中的防腐蚀性能,并与球磨法制备的云母氧化铁产品进行对比。结果表明,冲击磨制备的云母氧化铁其粗粉产品和细粉产品均能符合云母氧化铁的国家或行业标准,其总产率在90%左右;经过冲击磨粉碎的云母氧化铁在保存片状结构的同时,在粒度和粒度分布上得到明显改善,应用于涂料中也表现出优越的防腐蚀性能。

关键词：冲击磨；云母氧化铁；重防腐涂料

Abstract：To improve the quality of the micaceous iron oxide powders in ball-milling,a new technology was designed and experimented.Micaceous iron oxide minerals was impacted into pieces by impact mill,and then the pieces were gotten through into whirlwind clarifier for clarifying.Dedusting was conducted by a bag dust collector.The work conditions of the impact grinding and whirlwind clarifier was changed to obtain micaceous iron oxide powders with different particle size and particle size distribution.The products passed the particle size analysis and the anticorrosion performance test which was after the coating application,as well as the contrast test with the ball-milling products.The results show that the coarse and fine powders among micaceous iron oxide prepared by impact mill conform to the national standards on micaceous iron oxide.Their total yield is around 90%.The micaceous iron oxide powder with slices structure which is pulverized by impact grinding is improved obviously in particle size and size distribution,and their application research possesses excellent performances in duty anticorrosive coating materials.

Keywords：impact mill；micaceous iron oxide；duty anticorrosive coating