离心筛网式青核桃脱皮机的设计与实验

Design and experiment of centrifugal-mesh green walnut peeling machine

青核桃脱皮是核桃产后加工的首要环节。本文设计了一种离心筛网式青核桃脱皮机,通过分析青核桃物理特性和脱皮机具结构对脱皮效果的影响,选用新疆核桃主栽品种扎343为实验材料,在单因素实验的基础上,对青核桃脱皮过程进行正交实验。结果表明:筛网转速对脱净率的影响极显著(p<0.01),对破损果率影响显著(p<0.05);生产率和作业时间对脱净率的影响显著(p<0.05),对破损果率的影响不显著(p>0.05)。当生产率为900 kg/h,筛网转速为35 r/min,作业时间为4 min时,脱净率均值为91.02%,破损果率为5.27%,本文可为青核桃脱皮机械化提供参考依据。

Green walnut peeling is the first important tache for walnut postharvest processing. Centrifugal-mesh green walnut peeling machine had been introduced in this study,and the influence on peeling efficiency of physical characteristics of green walnut and structure of peeling machine had been analyzed. Based on this,walnut variety ＂Zha 343 ＂were studied by single factor and orthogonal experiments.The results showed that mesh rotation speed had very significant effect on threshing rate（ p 0.01）,but the effect on the breakage rate was significant（ p 0.05）. Productivity and homework time had significant effect on threshing rate（ p 0.05） and had no significant effect on the breakage rate（ p 0.05）.The best peeling effect appeared when the productivity was 900 kg/h,mesh rotation speed was 35 r/min,working time was 4 min,on the condition,threshing rate reached91.02%,breakage rate was 5.27%.It would provide a reference for peeling peel mechanization.