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当前位置: 首页 > 文章 > 切碎棉杆高密度压缩成型的试验研究 浙江大学学报(农业与生命科学版) 2003,29 (2)
Position: Home > Articles > Experimental studies on compressing chopped cotton stalks to high densities. Journal of Zhejiang University (Agriculture and Life Sciences) 2003,29 (2)

切碎棉杆高密度压缩成型的试验研究

作  者：
盛奎川;钱湘群;吴杰
单  位：
浙江大学生物系统工程系;石河子大学机电工程学院
关键词：
生物质;棉杆;压缩;成型块;密度;松弛
摘  要：
对切碎棉杆进行高密度压缩成型试验,研究了压缩过程中压力与密度的关系,结果表明压力与密度的变化表现为指数关系。研究了压力、温度和切碎棉杆粒度大小对成型块松弛密度的影响,结果表明,在温度和初始密度相同条件下,压力增大,松弛比相应减小;在压力和初始密度相同条件下,常温压缩比加温压缩的松弛比大,当切碎棉杆温度在120～180℃范围内变化时,成型块的松弛比变化不明显;粒度越小,松弛比越小,但粒度在3～10mm变化时,松弛比没有明显差异。
译  名：
Experimental studies on compressing chopped cotton stalks to high densities.
作  者：
SHENG Kui-chuan 1, QIAN Xiang-qun 1, WU Jie 2(1. Dept. of Biosystems Engineering, Zhejiang University, Hangzhou 310029, China; 2. College of Mechanical and Electr onic Engineering, Shihezi University, Shihezi 832003, China) Journal of Zhejiang University ( Agric & Life Sci ), 2003,29(2):139-142
关键词：
biomass; cotton stalks; compress; briquette; density; relax
摘  要：
Experiments were carried out for seeking the relationship between pres s pressure and the compressing density when the chopped cotton stalks was compre ssed. The results indicated an exponential form of relationship between density and pressure. In this paper, the effects of pressure, temperature, and particle size distribution of chopped materials on relax density were also studied. The r esults showed that the relax ratio decreased as the pressure increased when the temperature and initial density were kept the same, the relax ratio of briquette s of normal temperature compression was higher than that of heated compression i f the pressure and initial density were kept the same, but the relax ratio hardl y changed when the temperature of chopped cotton stalks changed from 120 ℃ to 1 8 0 ℃. The results also showed that the relax ratio decreased as the particle siz e became samller, but it hardly changed when the particle size changed from 3 mm to 10 mm.

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