玉米秸秆茎叶分离装置的设计与试验  

Design and experiment on stem-leaf separator for corn straw

作　　者：朱新华[1] 杨中平[1] 吴永锋 查峥[1] 

机构地区：[1]西北农林科技大学机械与电子工程学院,陕西杨凌712100 [2]江淮汽车股份有限公司乘用车一厂,安徽合肥230601

出　　处：《西北农林科技大学学报（自然科学版）》2012年第3期229-234,共6页Journal of Northwest A&F University(Natural Science Edition)

基　　金：陕西省科学技术研究发展计划项目(2009K01-06);公益性行业(农业)科研专项(201003063-07)

摘　　要：【目的】设计玉米秸秆茎叶分离机械,为农业废弃物玉米秸秆的资源化利用提供技术支持。【方法】基于压扁碾搓法原理,设计了一种由压辊机构、剥辊机构、清理机构等组成的茎叶分离装置,以实现对玉米秸秆的茎叶分离,并采用含水率为21.68%的玉米秸秆对分离装置参数进行了正交试验优选。【结果】影响秸秆茎叶分离率的主次因素依次是压辊间隙、剥辊速比和压辊转速。玉米秸秆茎叶分离的优选方案为:压辊间隙8mm,剥辊速比1.6,压辊转速200r/min。在此条件下,玉米秸秆的茎叶分离率可达到92.9%。【结论】该装置可用于玉米秸秆的茎叶分离,有效提高了分离效果。[Objective] The study was done to design a machine for stem-leaf separation of corn straw, which can provide technical support for comprehensive utilization of agricultural wastes-corn straw. [Meth- od] To utilize the leaf,bark and pith of corn straw separately and efficiently,a kind of stem-leaf separator, consisting of press roller mechanism, separation roller mechanism, cleaning mechanism, etc. , was designed based on flatten-robbed method to realize stem-leaf separation of corn straw. Parameters of the separator were optimized by orthogonal experiment of stem-leaf separation with corn straw with a water content of 21.68%. [Result] The results showed that the sequence of factors which influence separation efficiency was：gap between press rollers, linear speed ratio between separation rollers and rotate speed of press roll- ers. The optimal scheme for stem-leaf separation of corn straw was： rotate speed of press rollers, 200 r/min;gap between press rollers, 8 mm;linear speed ratio between separation rollers, 1.6. Under this condi- tion, the separation rate was 92.9%. [Conclusion] This machine can be used to separate corn straw into stems and leaves, and has improved separation efficiency.

关 键 词：玉米秸秆 茎叶分离 机械设计 农业废弃物 综合利用 

分 类 号：S226.79[农业科学—农业机械化工程]