20mm厚尾赤桉锯材2种干燥工艺对比研究  

Comparative research on two kinds of drying processes for 20 mm thick sawed timber of E.urophylla×E.camaldulensis

作　　者：廖立[1] 涂登云[1] 云虹[1] 周桥芳[1] 黄俊 

机构地区：[1]华南农业大学林学院,广东广州510642 [2]贺州市林业局,广西贺州542802

出　　处：《中南林业科技大学学报》2014年第9期128-130,共3页Journal of Central South University of Forestry & Technology

基　　金：广西科学研究与技术开发计划项目(桂科攻1348013-3)

摘　　要：分别采用常规窑干工艺和气干—窑干联合干燥工艺对20 mm厚尾赤桉锯材进行了干燥试验,并对2种工艺的干燥速度、干燥质量和能耗进行对比。结果表明:2种工艺的干燥质量均达到GB/T 6491-2012《锯材干燥质量》二级材标准;常规窑干工艺的周期为310 h,气干—窑干联合干燥工艺的周期为406 h,比常规窑干法多96 h;采用联合干燥法,可节约能源67.4%。The 20 mm thick sawed timber ofE.urophylla×E.camaldulensis was dried by adopting the conventional kiln drying process and the combined drying process of air drying and kiln drying. The drying rate, drying quality and energy consumption of the two methods were compared. The results show that the drying quality of the two methods both reached the Secondary Grade Standard of GB/T 6491-2012; the period of conventional kiln drying process was 310 hours while that of the combined drying process of air drying and kiln drying was 406 hours which was prolonged to 96 hours than the conventional method; the energy consumption of the new method could be saved by67.4 %.

关 键 词：尾赤桉 锯材干燥 气干 窑干 干燥质量 

分 类 号：S782.31[农业科学—木材科学与技术]