Productive test of a newly drying technology of veneer: intermittent-contact drying of veneer with flexible screen belt

编号 zgly0000366520

文献类型 期刊论文

文献题名 Productive test of a newly drying technology of veneer: intermittent-contact drying of veneer with flexible screen belt

学科分类 220.5550;木材加工与人造板工艺学

作者 HUAJun 

作者单位 CollegeofMechanicalandElectricalEngineering  NortheastForestryUniversity  Harbin150040  P.R.China 

母体文献 Journal of Forestry Research;林业研究: 英文版 

年卷期 2005,16(2)

页码 155-157

年份 2005 

分类号 TS652 

关键词 柔性垫网  接触式干燥工艺  杨木单板  生产性试验 

文摘内容 A newly drying technology, intermittent-contact drying of veneer with flexible screen belt (ICD-fbs), was invented and used in poplar veneer drying. Productive test was carried out for validating the practical use of this drying method. The test result shows that to dispose flexible screen belts on the two sides of hot board could help steam discharge remarkably. The veneer dried using ICD-fsb method had smooth and level surface, less deformation and warping, even moisture content, and high utilization rate. The time for opening hot board to discharge steam,which, early or late, is a key to obtain good drying result, was determined at the time when the core's temperature of veneer reaches 100℃ (vaporization). Using ICD-fsb method, the shrinking rates in tangent of veneer were from 1.90% to 2.26% for veneer of 0.4 mm in thickness,2.49% to 4.50% for veneer of 1 mm in thickness and 1.34% to 3.30% for veneer of 1.7 mm in thickness, which are much lower than the results obtained by other drying methods. The method of ICD-fsb offers a reliable technological guarantee for solving the deformation problem of veneer drying, especially the deformation of wood from quick-growing plantation。