除尘风网工艺设计说明书例

武汉工业学院

毕 业 设 计

设计题目：日处理小麦200吨专用面粉车间 ——小麦清理除尘风网工艺设计

目录

摘要······························································1 前言······························································2

第一章 粉尘的危害及防尘综合措施

一、粉尘的危害················································4 二、粉尘的防治措施············································4

第二章 风网设计原则··············································6

一、除尘风网的设计原则········································6 二、确定风网形式的原则········································6 三、集中风网的组合原则········································6

第三章 风网分析··················································7 一、方案的确定················································7 二、去石机风网组合分析········································7 三、振动筛风网组合分析········································8 四、集中风网组合分析··········································9 五、设备特点··················································9 六、车间设备布置·············································11

第四章 风网设备选型及计算·······································12 一、绘制风网布置图如附图·····································12 二、计算各管段长度及弯头个数，绘制风网流程图·················12 三、各风网阻力的计算·········································12

设计总结·························································31 谢辞·····························································33 参考文献·························································34

1

摘 要

粮食加工厂生产过程及容易产生粉尘，粉尘的危害性很大。例如：粉尘会影响生产，影响光照，危害人类健康，而且还会造成环境污染，甚至发生粉尘爆炸等；此外，粮食加工厂产生的粉尘有的也是具有营养价值的，如有的可用作肥料，饲用，甚至可作食用。因此，做好粉尘防治是具有现实意义的。粉尘防治的最有效措施就是通风除尘，利用一定的设备（吸风罩、风管、风机、除尘器）将含尘空气收集并净化为符合国家规定的卫生标准排放到空气当中。设计过程中，我通过查阅资料，了解除尘风网的设计原则与方法，根据设计原则确定风网的组合形式，根据工艺要求，确定设备的摆放位置，考虑车间内-------整齐美观的情况下，确定风管走向，然后计算风管长度与直径，绘制风网图，计算风网阻力和风量，选择合适的风机和除尘器。

关键词：除尘 风网 粉尘

Abstract

The production process in the grain processing factory is easy to produce the dust. The dust is very hazardous, For example: The dust will affect the production, influence illumination, harm the human’s healthy, moreover it also can cause the environmental pollution, even have the dust explosion and so on. But, some of the dust being produced in the grain processing factory has the nutritional value. For example: Some may serve as the fertilizer, the feed, even some may be edible. Therefore, preventing and controlling the dust are very significant. The most effective action of preventing and controlling the dust is ventilates the dust removal. By using the certain equipments, they collect the air with the dust and purify it and then discharge it in the air. In the design process, I consult the material, and understand the principle of design and the method removing the dust by wind net. According to the principle of design, I definite the combination form of wind net. According to the technological requirement, I definite the position of the equipments. Considering the neat artistic situation in the workshop, I definite the trend of the pipeline. And then I commutate the length and diameter of the pipeline, plan the wind net orchards, computation wind net resistance and amount of wind, choice appropriate air blower and dust remover.

Key word: Dust removal Well ventilated Dust

2

前 言

粮食工业是国民经济的一个重要部门，和人民生活息息相关，工业化、现代化任务很重。2002年粮油工业的重组和改革的步伐加快，通过发展订单农业，建立适应市场机制的产销衔接，以公司连基地，基地加农户的模式，促进优质粮油产品的产业化，形成以粮食购销企业、加工企业为龙头，带动粮油深加工的发展，通过加工、转化、增值，提高企业的经济效益，带动粮油产区经济发展，增加农民收入，一批新型的粮油工业企业集团不断涌现，特别是近两年面粉加工企业规模扩张很快。

据有关部门资料统计，1998年年底我国的面粉厂包括国营、民营和合资的大、中、小型面粉加工企业已近万家，其中大型和特大型面粉厂（500吨/日以上）约占全国的0.55%，数量为55家，是1982年的5倍。2003年中国粮食行业协会的调查表明，2001年全国粮油工业企业共有7548家，其中制粉3940家。

国家食品工业“十五”发展规划中提到要强化小麦综合利用，积极开发谷朊粉、小麦胚芽制品，小麦麸皮制品等。近年来，面粉企业在“大路货”产品上展开“价格火拼”，忽视了面粉深加工和农副产品综合利用这块巨大的市场。专家认为，我 …… 此处隐藏：1874字，全部文档内容请下载后查看。喜欢就下载吧 ……