ZS80型锥式离心筛设计.doc

洛阳理工学院毕业设计摘 要食品工业的发展是设备和工艺共同发展的结果，应使设备和干预达到最佳配合，以设备革新和创新促进工业的改进和发展，以工艺的发展进一步促进设备的发展和完善在食品加工中，由于原料和加工用途不同，分离机械也是多种多样的，由于圆锥筛与其他分离设备比较，具有推动力大，分离能力强结构紧凑，附属设备少等优点，是目前在许多行业及领域中广泛应用的、理想的分离设备之一，尤其是在小麦，薯类等淀粉制品的加工工序中许多大型公司已经开始在亚洲，中东欧和南美洲地区的淀粉制品市场投入了大量的资金，这些地区的淀粉生产预计将会迅速扩大，世界淀粉加工业的发展前景将会非常广阔鉴于离心筛在淀粉加工工序中的重要作用，它的发展空间也会随着淀粉工业的发展而得到提升随着淀粉制品市场激烈的竞争,这就对其分离设备提出了更高的要求在改革开放的大好形式下，由于引进和消化了国外的先进技术和设备，我国小麦产后加工行业的技术水平已经在向国际靠拢但是由于我国的国力不是很强，底子薄，不可能大量引进，必须走国产化道路，这是行业技术改造的方向在我国淀粉加工业中,一方面,同先进的淀粉加工国相比,国产离心筛无论是在设备加工精度、工艺性能、运行可靠性和使用寿命等方面都与进口同类设备存在差距;另一方面,为了保证设备的分离效果,一些大、中型淀粉加工厂花费大量外汇,引进昂贵的进口设备。

因此,开发研制大型、新型、高效、高可靠性的离心筛对加快发展我国淀粉加工业具有十分重要的意义关键词：食品工业，离心筛，锥式设计ABSTRACTThe food industry is the development of equipment and process common development result, should make equipment and intervention, in cooperation to achieve the best equipment innovation and innovation to promote the improvement and development of industrial development in technology, further promoting the development of equipment and perfect. In the food processing, because raw material and processing USES different, separate machinery also is varied, because with other separation equipment conical sieve, compared with impetus, compact structure, separation ability less accessory equipment etc, and is currently in many industries and areas of widely used, ideal separation equipment, especially in wheat, one of such as potato starch products processing process. Many large companies have begun in Asia, central and Eastern Europe and South America area of starch products market spend a lot of money, these areas of starch production forecast will be expanded rapidly, world development prospects of starch industry will be very broad. In view of centrifugal screen on the important role of starch processing operations, and its development space as starch industry development and promoted. Along with the starch products fierce market competition, this to its separation equipment put forward higher request. Reform and opening-up good form, by introducing and digestive introduces foreign advanced technology and equipment, China's wheat postpartum processing industry technical level has been moving toward international. But because of our country's national strength is not strong, impossible, inadequate economic nationalization of the introduction, must take the road, this is the direction of industry technical reformation. In China, on the one hand, starch industry with advanced starch processing countries, domestic centrifugal screen compared both in equipment machining precision and process performance and operation reliability and service life etc are with similar import equipment, there is a gap On the other hand, in order to guarantee the separation efficiency of equipment, some large and medium-sized starch processing factory spent a lot of foreign exchange, the introduction of the expensive imported equipment. Therefore, development of large, new, high efficiency, high reliability of speeding up the development of centrifugal screen in starch industry has the extremely vital significance. KEYWORDS: food industry, centrifugal screen,目录前言........................................................................................1第1章 毕业设计的目的......................................................7第2章 设计方案………………………………………………..…….8 2.1设备用途……………………………………………….…….......82.2初步设计方案草图………………………………….………..….82.3工作原理………………………………………..………….……..82.4主要技术参数的拟定……………………..…………….….……9第3章 方案论证……………………………………………..…..….10 3.1转鼓结构选择论证………………………………………………10 3.2机架结构论证…………………………………………………….10 3.3 论证结果……………………………………………..……..……10第4章 结构及设计计算....……….........................................124.1电动机的选择........... ....................................................124.2 V带传动的设计计算.............. .......................................134.3主轴的设计 ................................................... ..............154.4轴承的较核...................... ............................................194.5转鼓的设计....................... ...........................................204.6机架的设计......................... .........................................21结论.......................................................................................23致谢.......................................................................................25参考文献 .............................................................................26外文资料………………………………………………………………..2728前 言离心筛的发展历史离心筛是利用转鼓高速旋转产生的强大的离心力,分离液体与固体颗粒或液体与液体的混合物中各组分的机械。

离心筛最早诞生于欧洲,在19 世纪中叶,这些最早的离心筛都是间歇操作和人工排渣的随着卸渣机构的改进,20 世纪30，40 年代出现了连续操作的离心筛,间歇操作离心筛也因实现了自动控制而得到发展新型离心筛广泛应用在淀粉制品的其他工序中，如它们取代了洗涤淀粉的过滤机，其原理也应用到其他设备，如水力旋转器等离心筛在国内外的现状及发展概况淀粉工业是最古老的食品工业之一最初的工业化生产大约在1830年因为淀粉工业既是基础工业，又是食品工业，所以一个多世纪以来发展很快世界淀粉年产量，在七十年代中期为700多万吨，到八十年代中期已有1800多万吨，九十年代初期达到2000万吨，目前已超过4600万吨其发展速度是令人瞩目的我国小麦淀粉的生产主要集中在江、浙、沪、豫、鲁等地区.年生产规模从几千吨到几万吨不等随着国民经济的发展和人民生活水平的提高，人们对食。