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四川美丰复合肥公司300 kt/a喷浆聚合法尿基复合肥装置引进的技术软件包,是以高浓度尿液、磷酸一铵、钾盐、硫酸与液氨等为原料,采用转鼓喷浆二次涂布造粒技术。总结其试生产出现的问题及所采取的技改措施。运行1年的实践表明,该工艺采用DCS控制系统,尿基复合肥产品品质好;直接引入尿液进行二次涂布造粒,降低了造粒物料水分,干燥负荷减轻,各项指标符合要求,具有国内先进水平。
Sichuan Meifeng Compound Fertilizer company 300 kt / a shotcrete polymerization urea-based fertilizer device technology package is imported, high concentrations of urine, monoammonium phosphate, potassium salt, sulfuric acid and liquid ammonia as raw materials, using drum Shotcrete secondary coating granulation technology. Summarizes the problems that occur in the trial production and the technical measures taken. The practice of running for one year shows that the process adopts DCS control system and the quality of urine-based compound fertilizer products is good; the urine is directly introduced into the secondary coating granulation to reduce the water content of the granulated material, the drying load is reduced, and the indexes meet the requirements , With the domestic advanced level.