涂硫尿素生产工艺的研究  

Research on sulfur-coated urea production process

作　　者：孟亚利[1] 

机构地区：[1]上海化工研究院,上海200062

出　　处：《磷肥与复肥》2016年第2期13-15,共3页Phosphate & Compound Fertilizer

摘　　要：介绍涂硫尿素的生产工艺流程,对涂硫尿素生产工艺中的关键影响因素——涂硫转鼓内部结构,喷嘴喷压、喷角、喷距,尿素预热温度,硫黄熔融温度等进行研究。结果表明：在喷嘴压力0.3-0.7 MPa下,喷角宜在50-60°,喷距约190 mm为宜,尿素的预热温度控制在65-75℃,硫黄熔融温度控制在130-150℃。The production process of sulfur-coated urea is introduced, the key influence factors of sulfur-coated urea production technology are studied, including internal structure of drum for coating sulfur, spraynozzle pressure, injection angle, injection distance, urea preheating temperature, sulfur melting temperature, etc.The results show that, under the nozzle pressure of 0.3- 0.7 MPa, nozzle should be in 50°- 60°, injectiondistance should be 190 mm, urea waste heat temperature is controlled at 65- 75 ℃, the sulfur meltingtemperature is controlled at 130- 150 ℃.

关 键 词：涂硫尿素 喷嘴 硫黄 熔融 

分 类 号：TQ441.41[化学工程—化学肥料工业]