磷铵喷浆造粒“三内”技术在复肥生产中的应用研究进展

Progress in Application Research on “Three Internals” Technology for Ammonium Phosphate Spherodizer in Compound Fertilizer Production

概述了磷铵喷浆造粒“三内”技术（内返料、内分级、内破碎）在复肥生产中的研究开发和工业应用情况，提出了今后“三内”技术的研究方向。

This paper outlines the research and development of the “three internals”(viz., internal recycle, internal classification and internal crushing) technology for the ammonium phosphate spherodizer in compound fertilizer production and its industrial application and also presents the direction of study of the “three internals” technology in future.