机械5

摘要 由于蔬菜原料自身特性差异很大,选择清洗工艺和配套的清洗设备时会受到很大的限制,所以各种蔬菜原料的清洗设备有显着差别。荷藕属生鲜食品,是根茎类蔬菜，其主要成分是水和有机物,在一定条件下能保持生物活性,同时也是一类很易受外界物理、化学影响的脆弱物质。清洗蔬菜既要保持其品质不受损害,又要去除附着其上的杂质,使之达到卫生标准的要求。荷藕是一种外形很不规则的蔬菜，整根藕一般由3节组成，每节藕的不同部位尺寸均不同，因此在设计荷藕清洗机时对荷藕几何尺寸进行统计分析是十分必要的。 按照设计要求参考相关资料，初步确定清洗机的各项参数。荷藕清洗机采用了喷淋式清洗，喷嘴采用全方位均布的方式，较好的解决了荷藕清洗洗净率的问题。但是该机型仍存在最优解的问题，可以通过试验，对新型喷淋式莲藕清洗机进行了结构参数优化，对改进后的莲藕清洗机进行了清洗加工试验，得出：清洗效率有了明显的提高，更能满足设计的要求。 关键词:清洗方式；莲藕清洗；荷藕的特性；清洗试验 Abstract o
n accou
nt of the great differe
nces of the vegetable's ide
ntity,it will restrict a lot whe
n to choose the clea
nout tech
nics a
nd matched clea
nout equipme
nt,so there are great differe
nces i
n clea
nout equipme
nts of the vegetable material. lotus root , raw a
nd delicious ,belo
ngs to the ge
nus rhizome a
nd its basis is water a
nd orga
nism,which ca
n keep the orga
nisms livi
ng i
n some co
nditio
ns but also is vul
nerable substa
nce i
n the physical a
nd chemical i
nflue
nce. whe
n clea
ni
ng the vegetable , the impurity with it should be clear up a
nd its character should
not be damaged so that it will come up to the sta
ndard. lotus root is a ki
nd of the vegetable with a a
nomalistic exter
nality, ge
nerally maki
ng up of three
nodes that have differe
nt sizes i
n differe
nt parts. Accordi
ngly,it is
necessary to make statistical a
nalysis i
n desig
ni
ng the lotus root clea
nout machi
ne. accordi
ng to the desig
n request a
nd related i
nformatio
n, the parameter is prelimi
narily made out. I
n the clea
ni
ng machi
ne of vibratio
n spray type, the
nozzles are fixed i
n a
n om
nidirectio
nal mode so that it solves the problem of the exte
nt of clea
ni
ng out. But the problem of the prior resolve
nt still exists i
n this ki
nd of machi
ne. So we optimize the structure parameter i
n the clea
ni
ng machi
ne of vibratio
n spray type a
nd perform experime
nts o
n the improved machi
ne. We ca
n get the co
nclusio
n from the experime
nts that the exte
nt of clea
ni
ng is improved obviously a
nd it is absolutely meet the dema
nd. KEY WORDS: Clea
ni
ng methods, Lotus Clea
ni
ng; Lotus Roots features; clea
ni
ng test 目录 第一章绪论1 1.1引言1 1.2国内外研究现状1 1.3莲藕几何形状分析与研究4 1.4莲藕清洗机的介绍7 1.5主要设计内容9 第二章莲藕清洗机的设计11 2.1喷嘴的设计计算11 2.1.1喷嘴参数的拟定11 2.1.2喷嘴参数的校核12 2.2水泵的选择13 2.3参数的校正13 2.4喷嘴的安装布置14 2.4.1上下面的喷嘴的布置参数15 2.4.2侧面的喷嘴的布置参数18 2.5其它部分18 2.6本章小结20 第三章莲藕清洗机的试验研究21 3.1莲藕清洗机理论样机21 3.2试验物料21 3.3主要术指标21 3.4试验方法22 3.5清洗试验过程22 3.6试验结果分析24 3.7本章小结25 第四章总结26 4.1总结26 4.2展望26 致谢28 参考文献29