發(fā)布時間：2018-07-20 18:17

【摘要】：連續(xù)輸送機械是指用來輸送大宗散體物料或成件物品的輸送設(shè)備。其廣泛應(yīng)用于國民經(jīng)濟的各個生產(chǎn)部門和物資流通中。連續(xù)輸送機械可以減輕人們繁重的體力勞動,提高作業(yè)效率,易于實現(xiàn)機械自動化。螺旋輸送機作為一種連續(xù)輸送機械,已成為眾多工藝流程中的關(guān)鍵設(shè)備或重要的輔助設(shè)備,廣泛應(yīng)用于國民生產(chǎn)的各個行業(yè)。 垂直螺旋輸送機用來向上輸送散體物料,本文通過對散體性能的研究和垂直螺旋輸送機輸送機理的分析,得出影響垂直螺旋輸送機輸送效率的因素主要包括散體物料的特性、填充系數(shù)、螺距、螺旋的轉(zhuǎn)速等。以離散單元法為依據(jù),應(yīng)用顆粒仿真軟件EDEM,通過導入垂直螺旋輸送機的三維模型,在EDEM內(nèi)建立散體顆粒的真實模型,通過改變垂直螺旋輸送機的轉(zhuǎn)速、散體物料的填充系數(shù)等來對散體物料在垂直螺旋輸送機中的輸送狀態(tài)進行模擬仿真,并對仿真結(jié)果進行分析。根據(jù)仿真結(jié)果得出垂直螺旋輸送機輸送散體物料時,應(yīng)根據(jù)散體物料的特性來設(shè)定填充系數(shù)并配以適當?shù)穆菪�轉(zhuǎn)速,從而使垂直螺旋輸送機具有高的輸送效率和低的能源消耗。
[Abstract]:Continuous conveying machinery refers to the conveying equipment used to transport bulk materials or components. It is widely used in various production departments and material circulation of the national economy. Continuous conveying machinery can lighten people's heavy physical labor, improve working efficiency and realize mechanical automation easily. As a kind of continuous conveying machine, spiral conveyor has become the key equipment or important auxiliary equipment in many technological processes. It is widely used in various industries of Yu Guomin production. Filling coefficient, pitch, screw speed, etc. On the basis of discrete element method, the particle simulation software EDEM is used to establish the real model of granular particles in EDEM by introducing the three-dimensional model of vertical spiral conveyor, and the speed of vertical spiral conveyor is changed by changing the speed of the model. The filling coefficient of the bulk material is used to simulate the conveying state of the bulk material in the vertical screw conveyor, and the simulation results are analyzed. According to the simulation results, it is concluded that the filling coefficient should be set according to the characteristics of the bulk material and the proper screw speed should be set when the vertical screw conveyer conveys the bulk material, so that the vertical screw conveyer has high conveying efficiency and low energy consumption.
【學位授予單位】：太原科技大學
【學位級別】：碩士
【學位授予年份】：2011
【分類號】：TH224

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