| 生物质成型机螺杆延长使用寿命研究现状及展望 |
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| 引用本文： | 祝天一,张卫国,郭康权.生物质成型机螺杆延长使用寿命研究现状及展望[J].农业工程,2017,7(5):5-10. |
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| 作者姓名： | 祝天一 张卫国 郭康权 |
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| 作者单位： | 西北农林科技大学机械与电子工程学院，杨凌 712100 |
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| 基金项目： | 中国博士后科学基金面上项目(2014M550511)，陕西省博士后科研项目(K338021501) |
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| 摘 要： | 生物质固化成型技术是生物质能转化利用的有效途径。螺旋挤压成型机是生物质固化成型技术中开发最早、应用最广的生产设备。螺杆是成型机的核心工作部件，其在高温高压下与物料高速干摩擦，磨损严重，使用寿命短，严重制约了螺旋挤压成型机的效能。国内外学者在提高螺杆寿命方面进行了大量的研究，该文在分析螺杆失效形式的基础上，从成型工艺流程、螺杆外形及结构、螺杆选材和表面强化技术应用等方面，对国内外螺杆提高使用寿命的研究工作进行了总结概述，为今后的研究提出了建议。
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| 关 键 词： | 生物质 成型机 螺杆 磨损 使用寿命 |
Research Status and Prospect of Extending Service Life on Screw of Biomass Briquetting Machine |
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| Zhu Tianyi,Zhang Weiguo and Guo Kangquan.Research Status and Prospect of Extending Service Life on Screw of Biomass Briquetting Machine[J].Agricultural Engineering,2017,7(5):5-10. |
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| Authors: | Zhu Tianyi Zhang Weiguo and Guo Kangquan |
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| Abstract: | Biomass curing technology is an important development direction for biomass energy conversion and utilization.Screw extrusion technology is the earliest developed and most widely used production technology of biomass briquetting.Screw is the core of its forming work parts.Screw cause high speed dry friction with biomass materials under high temperature and high pressure，which create serious wear，shorten service life and severely restrict efficiency of screw extruder.A lot of research has been done in order to extend service life of screw in biomass briquetting machine by domestic and overseas scholars.Combining with working principles and failure modes for screw of biomass briquetting machine，research works in prolonging service life of the screw at home and abroad were summarized and overviewed，such as forming process，shape and structure designing，material selecting of screw and surface strengthening technology applying.Research status were summarized and focus of future research directions were proposed. |
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