{$cfg_webname}
主页 > 机械机电 > 机械 >

轻型立式薯类去皮机结构(食品机械)设计

来源:56doc.com  资料编号:5D4463 资料等级:★★★★★ %E8%B5%84%E6%96%99%E7%BC%96%E5%8F%B7%EF%BC%9A5D4463
资料以网页介绍的为准,下载后不会有水印.资料仅供学习参考之用. 帮助
资料介绍

摘    要
马铃薯为植物的块茎,形状为圆形或椭圆形,其结构由表皮层、形成层、外果肉和内果肉四部分。马铃薯品种可分两大类,一类是淀粉含量较高的,适宜于作为生产淀粉的原料,另一类是蛋白质含量较高,适宜作为蔬果或制成多种食品[1]。
马铃薯营养丰富,除直接食用外,还可以加工成食品、全粉、淀粉等经济价值较高的食品,通过加工可以大幅度提高鲜薯的商品价值[2]。
鉴于马铃薯的很多特点,马铃薯得到了广泛的利用。a.马铃薯可鲜食,鲜食用马铃薯主要用作家庭餐馆烹调,我国主要用来制作菜肴、面点小吃等大众食品。果外除蒸烤鲜马铃薯作主食外,还有咖哩饭、炖薯快以及色拉凉拌菜。马铃薯可制成方便食品、快餐食品、休闲食品,如马铃薯粉、马铃薯全粉、脱水马铃薯片(条)、速冻薯条(薯泥)、蒸薯条、罐装和去皮马铃薯、马铃薯脆片、马铃薯膨化小食品等;b,加工成淀粉及相关产品:由于马铃薯淀粉的优良特性,不仅是制作高级方便面、面类最为理想的添加淀粉,而且还是肉制品、鱼糜制品等的添加剂或原料。马铃薯淀粉也是粉条的优质原料。出马铃薯淀粉外,也可得到相关产品,包括各种变性淀粉、饴糖、葡萄糖、膳食纤维制品等。C,其他制品:马铃薯提取淀粉后的残渣可制成马铃薯发酵饲料、提取蛋白等[5]。
去皮(peeling)用于多种水果和蔬菜的加工中以除去不需要或不可食的物质,并改善成品的外观。主要的考虑因素包括通过尽可能减少去掉的部分以及可能降低能源、劳力和物质成本来降低总成本。这里,介绍摩擦去皮方法:食品被放置在金刚砂滚轴上或内壁排列着金刚砂的转筒中,在磨损力的表面除去食品的表皮后又被大量的水冲洗干净。该方法的优点是由于过程是在温室下进行而具有的能源成本低以及资本成本低、无热损伤,食品外观良好的优点,不规则食品表面(如马铃薯上的“孔眼”)会破坏去皮产品的外观,需要手工去除[3]。

关键词:马铃薯、去皮清洗、农产品、食品机械

Abstract
Potato tuber for plants for circular or elliptic shape, structure, by cuticular layer and layer, the pulp and pulp within four parts. Potato varieties can be divided into two kinds, one kind is starch content high, suitable for the production of raw materials as starch content of protein, another kind is higher, suitable for various fruits or food..
Potato nutrition is rich, besides direct edible, but also can be processed into food, powder, starch, etc, the economic value of higher food processing can be greatly improved through the value of fresh chips.
In view of many of the characteristics of the potato, potato has been widely used. a. can be fresh potatoes, fresh potatoes used mainly for cooking the family restaurant, China is mainly used to create dishes such as pasta snack food of the public.In addition to fresh fruit outside the potato for food, there are curry rice, stew and potato salad cold fast food. Potatoes can be made from convenience foods, fast foods, snack foods, such as potato flour, potato powder, dehydrated potato chips (article), frozen French fries (potato mud), steamed potato chips, canned and peeled potatoes, potato crisps , extruded snacks such as potato; b, processed into starch and related products: potato starch as a result of the excellent features, not only is the production of high-level instant noodles, flour add the most ideal type of starch, but also meat, surimi products such as additives or raw materials . Potato starch is also of high quality raw materials. The potato starch, but also related products available, including a variety of modified starch, maltose, glucose, dietary fiber products. C, other products: potato residue after starch extraction can be made from potato fermented feed, extract protein
Skin peeling (for) of fruits and vegetables processing to remove need not eat or not, and improve the physical appearance of the product. The main factors including through minimize removed part and may reduce the labor and material costs energy, reduce the total cost. Here introduces friction peel method: food is placed on the walls or emery roller drum lined up in the emery, wear away the food of skin surface by the amount of water after washing clean. The advantage of this method is due process is conducted in greenhouse with low cost and the energy of capital cost is low, no heat, the advantages of good food appearance, irregular food surfaces (such as potato "holes) destroys peel product appearance, need manual removal.    

Key words: Potatoes、Peel cleaning、Agricultural、Food machinery

1.薯类去皮机工作原理
1.1去皮清理的原理[1]
水果及块根、块茎类蔬菜的外皮在加工成食品之前,大多需要除去表皮。由于原料的种类不同,皮层与果肉结合的牢固程度不同,生产的产品不同,对原料的去皮要求也各异,果蔬去皮的基本要求是去皮完全、彻底、原料损耗少。目前,果蔬加工中常用的去皮方法有机械去皮和化学去皮。
机械去皮应用较广,既有简易的手工去皮又有特种去皮机。按去皮原理不同可分为机械切削去皮、机械磨削去皮和机械摩擦去皮。
(1)机械切削去皮  是采用锋利的刀片表面皮层。去皮速度较快,但不完全,且果肉损失较多,一般需用手工加以修整,难以实现完全机械作业,适用于果大、皮薄、肉质较硬的果蔬。目前,苹果、梨、柿等常使用机械切削去皮,常用的形式为旋皮机。旋皮机是将待去皮的水果插在能旋转的插轴上,靠近水果一侧安装(或手持)一把刀口弯曲的刀,使刀口贴在果面上。插轴旋转时,刀就从旋转的水果表面将皮车去。旋皮机插轴的转动有手摇、脚踏和电动几种动力形式。在旋车去皮之前应有选果工序,以保证水果大小基本一致。
(2)机械磨削去皮  是利用覆有磨料的工作面除去表面皮层。可高速作业,易于实现完全机械操作,所得碎皮细小,便于用水或气流清除,但去皮后表面较粗糙,适用于质地坚硬、皮薄、外形整齐的果蔬。胡萝卜、番茄等块根类蔬菜原料去皮大多采用机械磨削去皮机。
(3)机械摩擦去皮  是利用摩擦因数大、接触面积大的工作构件而产生的摩擦作用使表皮发生撕裂破坏而被去除。所得产品表面质量好,碎皮尺寸大,去皮死角少,但作用强度差,适用于果大、皮薄、皮下组织松散的果蔬,一般需要首先对果蔬进行必要的预处理来弱化皮下组织。常见到的机械摩擦去皮机如采用橡胶板作为工作构件的干法去皮机。
(4)化学去皮  又称碱液去皮,即将果蔬在一定温度的碱液中处理适当的时间,果皮即被腐蚀,取出后,立即用清水冲洗或搓擦,外皮即脱落,并洗去碱液。此法适用于桃、李、杏、梨、苹果等的去皮及橘瓣脱囊衣。桃、李、苹果等的果皮由角质、半纤维素等组成,果肉由薄壁细胞组成,果皮与果肉之间为中胶层,富含原果胶及果胶,将果皮与果肉连接。当果蔬与碱液接触时,果皮的角质、半纤维素被碱腐蚀而变薄乃至溶解,果胶被碱水溶解而失去胶凝性,果肉薄壁细胞膜较能抗碱。因此,用碱液处理后的果实,不仅果皮容易去除,而且果肉的损伤较少,可以提高原料的利用率。但是,化学去皮用水量较大,去皮过程产生的废水多,尤其是产生大量含有碱液的废水。
1.2去皮设备[10]:
离心擦皮机,离心擦皮机是一种小型间歇式去皮机械。依靠旋转的工作构件驱动原料旋转,使得物料在离心力的作用下,在机器内上下翻滚并与机器构件产生摩擦,从而使物料的皮层被擦离。用擦皮机去皮对物料的组织有较大的损伤,而且其表面粗糙不光滑,一般不适宜整只果蔬罐头的生产,只用于加工生产切片或制酱的原料。常用去皮机处理马铃薯、胡萝卜、番茄等块根类蔬菜原料[1]。
 

轻型立式薯类去皮机结构设计
轻型立式薯类去皮机结构设计
轻型立式薯类去皮机结构设计
轻型立式薯类去皮机结构设计
轻型立式薯类去皮机结构设计
轻型立式薯类去皮机结构设计

目录请看下一页

推荐资料