高塔造粒工艺生产尿基黄腐酸复合肥的技术研究  

Study on Technology of Producing Urea-Based Fulvic Acid Compound Fertilizer by High Tower Prilling Process

作　　者：肖光 徐爱叶 黄祥川 杨光富 XIAO Guang;XU Aiye;HUANG Xiangchuan;YANG Guangfu(Liaocheng Luxi Chemical Engineering Design Co.,Ltd.,Liaocheng,Shandong 252211,China)

机构地区：[1]聊城市鲁西化工工程设计有限责任公司,山东聊城252211

出　　处：《肥料与健康》2020年第4期31-34,共4页Fertilizer & Health

摘　　要：采用高塔造粒工艺生产尿基黄腐酸复合肥时存在产品水分含量、颗粒强度、产品温度、颗粒外观等达不到控制指标的问题,以不同粒径的固态黄腐酸和不同含水量的液态黄腐酸为原料,开展了试验研究。结果表明:固态黄腐酸的粒径控制在75μm左右或液态黄腐酸含水质量分数控制在30%左右时,制得的尿基黄腐酸复合肥产品质量较好;固态黄腐酸的粒径较小且添加质量分数控制在4%以下或液态黄腐酸含水质量分数控制在30%左右时,制得的尿基黄腐酸复合肥结块率较低。When producing urea-based fulvic acid compound fertilizer by high tower prilling process,there are some problems that the product moisture content,particle strength,product temperature,particle appearance,etc.cannot reach the control index.Experiments are carried out using solid fulvic acid with different particle sizes and liquid fulvic acid with different water content as raw materials.The results show that when the particle size of solid fulvic acid is controlled at about 75μm or the water mass content of liquid fulvic acid is controlled at about 30%,the quality of the urea-based fulvic acid compound fertilizer product is good;when the particle size of solid fulvic acid is small and the added mass fraction is controlled below 4%or when the mass fraction of water content of liquid fulvic acid is controlled at about 30%,the caking rate of the prepared urea-based fulvic acid compound fertilizer is low.

关 键 词：尿基复合肥 黄腐酸 高塔造粒 结块 粉化 

分 类 号：TQ444.5[化学工程—化学肥料工业]