溶解混施水肥一体化装置设计与试验  

Design and Experiment of Dissolved and Mixed Water Fertilizer Integrated Device

作　　者：张志洋 李红[1] 陈超[1] 夏华猛 ZHANG Zhi-yang;LI Hong;CHEN Chao;XIA Hua-meng(Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, Jiangsu Province, China)

机构地区：[1]江苏大学流体机械工程技术研究中心,江苏镇江212013

出　　处：《节水灌溉》2018年第4期46-49,共4页Water Saving Irrigation

基　　金：国家重点研发计划(2017YFD0201502);公益性行业(农业)科研专项(201503130)资助

摘　　要：设计了一种溶解混施水肥一体化装置,装置由供水模块,控制模块,溶解模块和辅助装备组成,旨在实现固体肥料的边溶解边施肥。试验研究了装置的关键结构及投肥方式对施肥的均匀性的影响,结果表明:本装置同步实现下料、溶解、施肥等作业,在实验室条件下,装置40 min内能完成90%以上的施肥量;1 kg直接加入蓄肥桶,1.5 kg加入控制模块的投肥方式下的装置出口水肥浓度的均匀系数为41.5%,相对于其他两种投肥方式,均匀系数分别提高了10.6%和11.8%。因此该装置能实现定量施肥,且通过改变投肥方式,装置可以达到较好的均匀施肥的效果。A dissolved and mixed water fertilizer integrated device is designed, which consists of a water supply module, a control module, a dissolving module and the auxiliary equipment. So the solid fertilizer dissolving in water and the solution outflowing from the device can be operated simultaneously. The experimental study on key structures of the device and the effects of fertilization methods on the fertilization uniformity is conducted. The results show that the device runs in good condition, and the operations of feeding, dissolution and fertilization can be performed simultaneously ; under the experiment conditions, more than 90% of the fertilization can be completed within 40 minutes ; the uniformity coefficient of outlet solution is 41.5% when 1 kg fertilizer is directly added into the storage barrel and 1.5 kg fertilizer is added into control model, which is more than that of other fertilizer distribution mode by 3.2% and 10.8%, respectively. Therefore the device can realize quantitative and uniform fertilization by changing fertilizer distribution mode.

关 键 词：水肥一体化 固体肥料 溶解混施 结构设计 

分 类 号：S224.21[农业科学—农业机械化工程]