磁化复混肥料的磁化工艺及磁性稳定性研究  

Research on magnetization process and magnetization stability of magnetized compound fertilizer

作　　者：丁文金[1] 李丁[1] 马友华[1] 方凡[1] 方兴龙[1] 王兰祥 

机构地区：[1]安徽农业大学资源与环境学院,安徽合肥230036 [2]安徽省金蓼复合磁化肥有限公司,安徽六安237010

出　　处：《磷肥与复肥》2014年第2期13-15,共3页Phosphate & Compound Fertilizer

摘　　要：实验室条件下以粉煤灰、钢渣粉、选铁尾矿粉为磁性材料,研究了磁性材料的磁化性能、生产磁化复混肥的磁化工艺及肥料磁性的稳定性,并测定了磁化复混肥料的重金属含量。结果表明,磁化工艺以先造粒后磁化为佳;以选铁尾矿粉为磁性材料,在磁化场强为8 000 mT下磁化10 s生产的磁化复混肥料磁化效果最佳,且放置时间对肥料的磁感应强度影响弱;以三种磁性材料制成的磁化复混肥料的重金属含量均低于国家标准,使用安全。Under laboratory conditions, with fly ash, steel slag powder, iron tailings powder as magnetic materials, the magnetic properties of three magnetic materials, magnetization technology of magnetization compound fertilizer and its stability of magnetizability are studied. The content of heavy metal in the three magnetization compound fertilizers are determinated. The results show that magnetization after granulation is preferred for magnetization process, and the magnetizing effect of choosing iron tailings powder and steel slag powder are better than choosing fly ash. Fertilizers get a best magnetization when their magnetic field intensity of 8 000 mT for 10 seconds, furthermore the external magnetic and field placing time have a weak impact on magnetic induction. The heavy mental content of three magnetization compound fertilizers are lower than national standard, are safe to use.

关 键 词：磁化复混肥料 磁性材料 磁化工艺 磁性稳定性 重金属含量 

分 类 号：TQ444[化学工程—化学肥料工业]