高氮复合肥颗粒表面成分与结块关系研究  

Study on relationship between particles surface composition and caking of high nitrogen compound fertilizer

作　　者：杨振军 吴舒 吴沿博[1] 王金铭 YANG Zhenjun;WU Shu;WU Yanbo;WANG Jinming(Sino-Arab Chemical Fertilizer Co.,Ltd.,Qinhuangdao 066003,China;State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,China)

机构地区：[1]中国-阿拉伯化肥有限公司,河北秦皇岛066003 [2]燕山大学亚稳材料制备技术与科学国家重点实验室,河北秦皇岛066004

出　　处：《磷肥与复肥》2020年第3期9-12,共4页Phosphate & Compound Fertilizer

基　　金：“十三五”国家重点研发计划课题项目(2016YFD0200402)。

摘　　要：对颗粒表面成分与形态进行改性是颗粒复合肥防结块技术的发展方向。分析颗粒复合肥的表面成分与形态,讨论高氮复合肥颗粒的结块机制,并提出应对措施以提升水溶性颗粒复合肥的防结块性能,包括改善颗粒的结构和抑制复盐反应,减少高溶解度物质在颗粒表面的富集,弱化盐桥效应、塑性形变,减少表面晶体物质的纵向生长等。The modification of the particle surface composition and morphology of compound fertilizer is the development direction of anti-caking technology in the future. The surface composition and morphology of granular compound fertilizer are analyzed, the caking mechanism of high nitrogen compound fertilizer particles is discussed,and countermeasures to improve the anti-caking performance of water soluble granular compound fertilizer are put forward, including improving the particle structure and inhibiting the complex salt reaction, reducing the enrichment of high solubility substances on the particle surface, weakening the salt bridge effect and plastic deformation, reducing the longitudinal direction of surface crystal substances growth and other measures.

关 键 词：高氮复合肥 结块机制 表面成分 应对措施 

分 类 号：TQ44[化学工程—化学肥料工业]