复混肥高塔造粒过程现场测试  

Field Test of Compound Fertilizer High Tower Prilling Process

作　　者：吴文华[1] 袁宸[1] 李接励[1] 梁济[1] 陈明良[1] 

机构地区：[1]上海化工研究院,上海200062

出　　处：《化肥工业》2014年第4期7-10,13,共5页Chemical Fertilizer Industry

摘　　要：针对目前复混肥生产装置存在的造粒塔塔底颗粒温度偏高、圆整度差等问题，对广西某高塔造粒过程进行了现场测试，以期为工艺改进提供数据依据。重点介绍了测试方法、测试仪器，并分析了测试结果。结果表明：在造粒塔内，气体平均温升为7．5℃，气固比为15102．49 m3/t，颗粒主要集中在塔半径4．5～7．5 m的圆环内，塔底颗粒体积表面积平均粒径为Φ2．50 mm，颗粒粒径主要集中在Φ2．00～4．00 mm范围内。In connection with current problems of compound fertilizer production unit , such as higher temperature of granule at prilling tower bottom and poor spheroidalization , a site test of high tower prilling process in Guanxi Autonomous Region is carried out to provide data reference source for process improvement .The emphasis is put on test method , and test instrument , test results are analyzed.Test results show that in prilling tower , average temperature rising of gas is 7.5 ℃, gas-solid ratio is 15 102.49 m3/t, granules are mainly distributed in circular ring of tower radius 4.5 ~7.5 m, surface mean diameter of granules at the bottom of prilling tower is Φ2.50 mm, most of granule diameter are in range of Φ2.00~4.00 mm.

关 键 词：复混肥 高塔造粒 现场测试 气固比 

分 类 号：TQ441.41[化学工程—化学肥料工业]