生物质化学工程2026，Vol.60Issue(2)：48-58,11.DOI:10.3969/j.issn.1673-5854.2026.02.006
榆木热风干燥器的设计
Design of An Elm Wood Hot Air Dryer
高干 1亚力昆江·吐尔逊 1代正华 1袁万能 2李涛 2沈中杰3
作者信息
- 1. 新疆大学 化工学院,新疆 乌鲁木齐 830017
- 2. 宝钢集团新疆八一钢铁有限公司,新疆 乌鲁木齐 830022
- 3. 华东理工大学 资源与环境工程学院,上海 200237
- 折叠
摘要
Abstract
Using elm wood as raw material,the drying characteristics of it during hot-air drying were investigated,and the kinetics characteristics of hot air drying for elm wood were analyzed.The volatile organic compounds(VOCs)generated during the drying process were measured,and a rotary dryer with a processing capacity of 10 t/h was designed based on the biomass drying characteristics.The results showed that during hot air drying of elm wood,the higher the hot air temperature,the lower the initial moisture content of biomass,and the smaller the biomass particle sizes,the shorter the time required to reach the drying equilibrium.Elm wood with different initial moisture contents and particle sizes could be dried within 27 min.When the drying temperature increased from 160℃to 220℃,CO2 emissions increased from 0.000 4 Nm3/kg to 0.004 3 Nm3/kg.VOCs could not be detected when the drying temperatures were lower than 180℃.At a drying temperature of 200℃,VOCs emissions reached 2.4 g/kg,primarily consisted of aldehydes and ketones,with furfural accounted for 67.5%of the total.Compared with other kinetic models,the Page model could accurately describe the hot air drying process of elm wood(dry basis moisture content of 45%)with an effective moisture diffusivity ranged from 2.46×10-8 to 9.77×10-8 m2/s,a drying activation energy of 33.429 kJ/mol.The length of rotary dryer designed for processing capacity of 10 t/h biomass had a drum of 10.4 m,an inner diameter of 2.6 m,a drum rotation speed between 21.77 to 26.22 r/min,and a thermal load of 100 828 kJ/h for drying 10 t/h biomass.关键词
生物质/热风干燥/干燥动力学/转筒干燥机/挥发性有机物Key words
biomass/hot air drying/drying kinetics/rotary drum dryer/volatile organic compounds分类
化学化工引用本文复制引用
高干,亚力昆江·吐尔逊,代正华,袁万能,李涛,沈中杰..榆木热风干燥器的设计[J].生物质化学工程,2026,60(2):48-58,11.
