农机使用与维修Issue(9)：9-13,5.DOI:10.14031/j.cnki.njwx.2025.09.002
多段式干燥单元结构对谷物干燥均匀度的影响
Impact of Multi-stage Drying Unit Configuration on Grain Drying Uniformity
摘要
Abstract
To address the issue of poor drying uniformity in small-scale grain dryers,this study proposes a multi-stage drying unit structure based on gradient temperature control.The research employs a combined methodology of theoretical analysis,mathematical modeling,and orthogonal experiments to systematically analyze the influence patterns of parame-ters such as initial moisture content,temperature difference between stages,and wind speed gradient on drying uniformi-ty.Orthogonal experiment results and analysis on corn drying reveal that initial moisture content and inter-stage temper-ature difference significantly impact drying uniformity.The optimal combination includes an initial moisture content of 28％,an inter-stage temperature difference of 6 ℃,a material layer thickness of 150 mm,and a wind speed decrea-sing by 0.5 m/s.The multi-stage drying unit structure enables uniform moisture distribution in dried grains,high effi-ciency,and absence of thermal damage,significantly improving drying uniformity.This research provides a theoretical basis and technical solutions for the structural optimization design of small-scale grain drying equipment.关键词
多段式干燥单元/谷物干燥/均匀度/结构优化Key words
multi-stage drying unit/grain drying/uniformity/structural optimization分类
农业科技引用本文复制引用
张佳丽,刘睿,赵宇,王丽娟,任嘉宇..多段式干燥单元结构对谷物干燥均匀度的影响[J].农机使用与维修,2025,(9):9-13,5.基金项目
黑龙江省农业科技创新跨越工程农业科技基础创新优青项目(CX23YQ34) （CX23YQ34）
