大颗粒尿素晶种造粒技术理论及其应用  

Seed Crystal Prilling Technology for Large Granule Urea

作　　者：粟升[1] 王怀占[1] 赵建强[1] 

机构地区：[1]塔里木油田石化分公司尿素生产部,新疆库尔勒841000

出　　处：《化肥设计》2010年第4期29-31,共3页Chemical Fertilizer Design

摘　　要：论述了大颗粒尿素装置流化床造粒技术的造粒机理、工艺流程;以颗粒数目为依据,建立了造粒系统平稳运行时造粒机进出尿素颗粒的平衡状态;分析了流化床造粒负荷与破碎机负荷之间的关系。结果表明,大颗粒尿素成品的合格产品数目与进入破碎机的颗粒数目有关,而与小颗粒晶种数目无关,为实际生产操作中破碎机辊间距调整及破碎机负荷调整提供了依据。Author has discussed theprilling mechanism and process flow of fluidized bed prilling technology in large granule urea plant, taking the urea granule number as basis, balance state of urea granules number located at and out of the urea granulator has been established during stably running of prilling system ; has analyzed the relation between fluidizer bed prilling load and breaker load. Result indicates that the qualified product number of large granule urea product is only related to the granule number entered into the breaker, but not related to the seed crystal number of small granule, it provides a basis for adjusting the breaker rollers space and the load of breaker in actual production operation.

关 键 词：大颗粒尿素 流化床造粒技术 晶种循环造粒 破碎机 颗粒数目 平衡状态 负荷 辊间距 

分 类 号：TQ441.41[化学工程—化学肥料工业]