刘平义,骆龙敏,李海涛,韩鲁佳,魏文军,张绍英.秸秆多级辊压成型原理与装置设计[J].农业机械学报,2016,47(s1):317-323.
Liu Pingyi,Luo Longmin,Li Haitao,Han Lujia,Wei Wenjun,Zhang Shaoying.Theory and Device Design of Multi-stage Roller Forming for Straw[J].Transactions of the Chinese Society for Agricultural Machinery,2016,47(s1):317-323.
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秸秆多级辊压成型原理与装置设计   [下载全文]
Theory and Device Design of Multi-stage Roller Forming for Straw   [Download Pdf][in English]
投稿时间:2016-07-20  
DOI:10.6041/j.issn.1000-1298.2016.S0.049
中文关键词:  玉米秸秆  压缩特性  屈服极限  辊压成型
基金项目:国家自然科学基金项目(51405494)
作者单位
刘平义 中国农业大学 
骆龙敏 中国农业大学 
李海涛 中国农业大学 
韩鲁佳 中国农业大学 
魏文军 中国农业大学 
张绍英 中国农业大学 
中文摘要:基于不封闭状态下的秸秆辊压成型原理及理论,提出了多级辊压秸秆冷成型技术方案。进行了秸秆多级辊压成型关键性能参数和技术可行性试验研究,以不同含水率9%~23%、粒度0~12mm的玉米秸秆为对象,研究在不封闭状态下秸秆物料的压缩成型特性,发现压缩过程存在屈服现象,压缩过程可划分为松散、压紧、屈服和成型4个阶段,在一定粒度下,秸秆物料的压缩屈服极限随着含水率的增加而减小;测试含水率9%的秸秆在不同压缩阶段的秸秆成型块厚度且计算各级压缩比,验证了不封闭状态下的秸秆辊压成型原理可行且为秸秆多级辊压成型装置提供设计依据。最后,依据秸秆多级辊压秸秆成型原理及秸秆物料压缩过程,设计多级辊压秸秆成型装置,以满足生物质秸秆成型的产地高效工业化生产技术要求。
Liu Pingyi  Luo Longmin  Li Haitao  Han Lujia  Wei Wenjun  Zhang Shaoying
China Agricultural University,China Agricultural University,China Agricultural University,China Agricultural University,China Agricultural University and China Agricultural University
Key Words:corn straw  compression properties  yield limit  roller forming
Abstract:The burning of crop straws polluted environment due to lack of high efficient and rapid industrialization processing measures for straws in the producing area. Based on roller forming principle and theory for straw with no mold, a technical solution was put forward, including roller rolling, high pressure and cold forming. During the experiment of key performance parameters on the multi roller forming for straws, corn straws with different moisture contents from 9% to 23% and size of no more than 12mm were used to study their compression properties by an universal testing machine with neither a mold nor a closed state. The curves of compression properties were obtained. Yielding phenomenon was found during the compression procession and the compression process can be divided into four stages which were the loose stage, pressed stage, yielding stage and forming stage. Meanwhile, the compression yield limit of corn straws was decreased with the increase of moisture content. Briquette thickness test of straw with moisture content of 9% at various compression levels verified the roller forming principle, and it also provided design basis about the compression ratio for multi stage roller forming device. Finally, based on the principle of roller rolling and forming and the compression properties of straws, a multi stage roller forming device for straw by using feed rollers, compression rollers and forming rollers was designed, which can meet the requirements of efficient and industrial production technology in the producing area.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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