复混肥装置干燥工序的优化改造  

Optimization and Revamp of Drying Section in Compound Fertilizer Plant

作　　者：詹光健 

机构地区：[1]贵州川恒化工有限责任公司,贵州福泉550501

出　　处：《硫磷设计与粉体工程》2012年第1期19-21,5,共3页Sulphur Phosphorus & Bulk Materials Handling Related Engineering

摘　　要：通过对干燥工序在不同工况下热平衡模拟计算对比分析,结合实际生产情况,指出造粒物料湿含量的波动是影响生产平稳运行的核心问题,通过工艺优化改进,采用变频调节造粒液泵的输出流量,烘干机进口增设大流量低压头鼓风机,变频调节出口引风机来提高干燥操作的弹性空间,实现装置长周期、高负荷地稳定运行。Through heat balance simulation calculation,comparison and analysis of the drying section under different cases,and together with the actual production practice,it points out that the fluctuation of content of wet granulation material is the core issue which influences the stable production operation,and by process optimization and improvement,and utilizing variable frequency to control the discharge flow of the granulation pump,and the adding high-flow and low-head blower fan at the suction of the dryer,and utilizing the induced draft fan at the discharge of the variable frequency to improve the flexibility of the drying operation,it will realize long and high-load stable operation of the plant.

关 键 词：复混肥 热平衡计算 模拟计算 干燥工序 控制 优化 

分 类 号：TQ444.5[化学工程—化学肥料工业]