硅钙钾土壤调理剂造粒烘干工艺研究  

Study on the Granulation and Drying Process of Silicon Calcium Potassium Soil Conditioner

作　　者：万夫伟[1] 李小燕[1] 吴锡林[1] 张明飞[1] 孙怀涛[1] WAN Fuwei;LI Xiaoyan;WU Xilin;ZHANG Mingfei;SUN Huaitao(Tianjin Cement Industry Design and Research Institute Co.,Ltd./Tianjin Key Laboratory of Medium and Trace Element Fertilizer Development and Application Enterprise,Tianjin 300400,China)

机构地区：[1]天津水泥工业设计研究院有限公司/天津市中微量元素肥研制与应用企业重点实验室

出　　处：《化肥工业》2019年第5期23-25,69,共4页Chemical Fertilizer Industry

基　　金：国家重点研发计划课题资助,编号2017YFB0310801

摘　　要：硅钙钾土壤调理剂(硅钙钾肥)是一种绿色环保、缓释长效的新型矿物肥料,具有提供养分和调理土壤的双重功效。以硅钙钾肥为研究对象,试验研究其造粒烘干工艺和设备。试验研究结果表明:湿球筛分有助于细粉成球,降低烘干能耗;烘干时应尽量减少颗粒的振动,以降低碎球概率;设置2组收尘器,分别用于回收干粉尘和含水汽粉尘;设置二次造粒有助于提高颗粒强度。Silicon calcium potassium fertilizer is a new mineral fertilizer with environmental protection, slow-release and long-time effective, which has the dual efficacy of providing nutrients and regulating the soil. Taking silicon calcium potassium fertilizer as the research object, the granulation and drying technology and the equipment for the procedure were studied. The experimental results showed that the wet ball sieving is helpful for pelletizing fine powder and reducing the energy consumption of drying, and the vibration of particles should be minimized during drying procedure to reduce the probability of the formation of broken balls. Two groups of dust collectors were set up to recover the dry dust and the dust containing water vapor, respectively, and the setting of secondary granulation procedure was helpful to improve the strength of particles.

关 键 词：硅钙钾肥 造粒烘干 颗粒筛分 

分 类 号：TQ445.9[化学工程—化学肥料工业]