摘要
伴随着经济的高速发展和城市人口急速的增加，城市里的生活垃圾数量也越来越多。随之而来的垃圾围城，环境污染，占用土地等问题也越来越严重。城市生活垃圾中包含多种可用回收利用的物质如纸张、玻璃、塑料等物质。在回收利用垃圾的过程中，我们可以取得一定的经济效益和巨大的社会效益。
在垃圾综合回收利用的过程中，垃圾分选是其中十分重要的一个过程。垃圾分选程度将影响垃圾后续处理程度，采用合理的分选设备是实现垃圾无害化，减量化，资源化的关键。
本文针对生活垃圾成分复杂，综台利用处理困难的问题，鉴戒世界上现有的垃圾分选技术，设计出一种城市生活垃圾圆筒筛分选机。该机主要是根据生活垃圾尺寸的大小进行分选，将生活垃圾初步分为大尺寸垃圾和粉末垃圾。尺寸比较大的主要是纸张、塑料等可二次利用的物质，而尺寸较小的主要是泥土，食物残渣等可堆肥物质。
本文介绍了目前城市生活垃圾和垃圾处理设备应用的现状，并介绍了垃圾分选机的类型、驱动方式、具体结构和工作原理，论述了垃圾圆筒筛分选机的设计和计算方法。
关键字：生活垃圾 圆筒筛 分选机 设计
Abstract
As developing of economy and increasing of population ,quantity of living waste turns more and more .Living waste includes paper ,plastics,glass,etc.Recycling these materials,we can get some economic benefic and huge social profit.On course of recycling waste,sorting is important process.Composition of the living waste are complicated ,so colligated using of living waste is a difficult problem .Aiming at the problem,we designed economical and applied cylinder filtreting machine of living waste through using for reference domestic and intemstionsl current waste filtrating technique.
Accorrding to the composition analysis of the living waste ,we discovered the bigger size material are mainly paper ,platic etc of being made second use of,and the small size material are mainly mud,food remnant etc of compost material.Acorrding to the charateristics of living waste and oversea waste equipments,we designed the waste screening machine .Acorring as size of living waste,the machine can sort the chunk waste and the poeder waste.
Firstly,the paper refers present condision of living waste and disposal equipments of waste. Then,we introduced sorts of waste equipments,sorts of driving,material framework and working theory,At last,we discussed the designed and caiculated way of cylinder screening machine of living waste. We established three-dimensional simulation of sorted machine adopting UG,and optimized framework of the machine.
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