我们的网站为什么显示成这样?

可能因为您的浏览器不支持样式,您可以更新您的浏览器到最新版本,以获取对此功能的支持,访问下面的网站,获取关于浏览器的信息:

|Table of Contents|

落叶松锯屑在木粉加工过程中的断裂分析(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2013年06期
Page:
127-131
Column:
研究论文
publishdate:
2013-11-27

Article Info:/Info

Title:
Fracture analysis of larch softwood sawdust in the wood flour processing
Article ID:
1000-2006(2013)06-0127-05
Author(s):
FAN Changsheng1 YANG Dongxia12 YANG Chunmei1* ZHANG Hong13
1. College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, China;
2. School of Technology, College of Harbin, Harbin 150086, China;
3. College of Mechanical and Electronic Engineering, Tarim University,
Keywords:
softwood sawdust wood flour fracture analysis
Classification number :
S781
DOI:
10.3969/j.issn.1000-2006.2013.06.025
Document Code:
A
Abstract:
The fracture criterion of wood flour is proposed based on the experimental and theoretical results from the dried larch sawdust. The fracture morphology and size of the different mesh sawdust were observed by the microscope in the preparing process of the dried larch sawdust into wood flour. The experimental result shows that the 0.08 mm wood flour mostly is in the form of sticks and includes the pits and arbitrarily arranged filaments on the radial wall of the tracheid observed clearly after enlarged 40 times. The experimental phenomenon presents that the main reason resulting in the fracture of the sawdust grain is the initiation and propagation of the crack in the sawdust grain. The interactive mechanism between cracks in the sawdust grain during the fracture process of sawdust was investigated by using the theory of fracture mechanics and the experiment results. The fracture criterion of the sawdust grain was obtained based on the interactive mechanism and a fundamental assumption that the dried sawdust is the brittle plate layer material.

References

[1] Obernberger I,Thek G. Physical characterisation and chemical composition of densified biomass fuels with regard to their combustion behaviour[J]. Biomass & Bioenergy,2004,27(6):653-669.
[2] 姜增琨,刘建军,左胜利,等.木质生物质常压液化及催化裂解研究[J].北京化工大学学报,2012,39(3):46-49.Jiang Z K,Liu J J,Zuo S L, et al. A new process for the atmospheric pressure liquefaction of biomass followed by catalytic pyrolysis[J].Journal of Beijing University of Chemical Technology, 2012,39(3):46-49.
[3] 王浩,韩秋喜.贺悦科.生物质能源及发电技术研究[J].环境工程,2012,30:461-469.Wang H,Han Q X,He Y K.Biomass energy and its power generation technology[J].Environmental Engineering, 2012,30:461-469.
[4] Sato T,Kobayashi N,Itaya Y,et al.Development of liquefaction technique of pulverized ligneous biomass powder[J]. Industrial & Engineering Chemistry Research,2009,48(1):373-379.
[5] 范天佑.断裂理论基础[M].北京:科学出版社,2003.
[6] 王凡,马岩,杨春梅,等.超细木粉原料粉碎机的设计[J].林业机械与木工设备,2012,40(3):34-36.Wang F, Ma Y, Yang C M, et al. Design of super fine wood powder materials crusher[J].Forestry Machinery & Woodworking Equipment, 2012, 40(3):34-36.
[7] Paulrud S,Mattsson J E,Nilsson C. Particle and handling characteristics of wood fuel powder: effects of different mills[J]. Fuel Processing Technology,2002,76(1):23-39.
[8] Mori S,Itaya Y,Kobayashi N. Pulverization technique of ligneous biomass and its utilization[J]. Cellulose Communications,2003,10:129-132.
[9] Mori S. Development of utilization technologies of biomass energy[J]. Journal of Environmental Engineering and Landscape Management,2009,19(2):67-72.
[10] Kobayashi J,Itaya Y,Tsukada S,et al. Drying technology for woody biomass for fine grinding by vibration mills[J]. Asia-Pacific Journal of Chemical Engineering,2007,2(2):83-89.
[11] Kobayashi N,Guilin P,Kobayashi J,et al. A new pulverized biomass utilization technology[J]. Powder Technology,2008,180(3):272-283.
[12] Samayamutthirian Palaniandy, Nurdina Abd Kadir, Mariatti Jaafar. Value adding limestone to filler grade through an ultra-fine grinding process in jet mill for use in plastic industries[J].Minerals Engineering, 2009, 22(7):695-703.
[13] Kachanov M. Elastic solids with many cracks a simple method of analysis[J].International Journal of Solids and Structures,1987,23(1):23-43.
[14] Larissa Gorbatikh, Mark Kachanov. A simple technique for constructing the full stress and displacement fields in elastic plates with multiple cracks[J].Engineering Fracture Mechanics, 2000, 66(1):51-6.
[15] Brian Lawn. 脆性固体断裂力学[M].龚江宏,译.北京:高等教育出版社,2010.
[16] 夏晓舟,章青,乔丕忠,等.裂纹间作用机制探讨及微裂纹区对主裂纹的作用效应研究[J].应用数学和力学,2010,31(1):61-70.Xia X Z,Zhang Q,Qiao P Z, et al. Interaction between cracks and effect of micro-crack zone on main crack tip[J].Applied Mathematics and Mechanics, 2010,31(1):61-70.
[17] 朱再胜,盖国胜,吴成宝,等.不同含水量木质生物质的粉碎特性研究[J].中国粉体技术,2012,18(2):7-11.Zhu Z S, Gai G S, Wu C B, et al. Pulverizing characteristic of woody biomass with different moisture content[J]. China Powder Science and Technology, 2012,18(2):7-11.
[18] 周崟.中国落叶松属木材[M].北京:中国林业出版社,2001.

Last Update: 2013-11-30