Development of Cross-Flow Fluidized Bed Paddy Dryer
作者:
Somchart Sopornonnarit,
Somkiat prachayawarakorn,
Ornanong Sripawaatakul,
期刊:
Drying Technology
(Taylor Available online 1996)
卷期:
Volume 14,
issue 10
页码: 2397-2410
ISSN:0737-3937
年代: 1996
DOI:10.1080/07373939608917212
出版商: Taylor & Francis Group
关键词: Drying;fluidization;grain;modelling;strategy
数据来源: Taylor
摘要:
A cross-flow fluidized bed paddy dryer with a capacily of 200 kgh was designed, fabricated and tested. Experimental results showed that final moisture content of paddy should not be lower than 23 % dry-basis if quality is to be maintained. Drying air temperature was keot constant at 115°C according to the recommendation of previous work. Results obtained from the mathematical model developed in this study indicatedthat optimum operating parameters should be as follows : air speed of 2.3 m/s, bed thickness of 10 cm and fraction of air recycled of 80 %. At this condition, energy consumption was close to the minimum while drying capacity was near the maximum. A prototype fluidized bed dryer with a capacity of 1 t/h was designed, fabricated and installed with the collaboration of a private company. The unit has been used for almost the whole past harvesting season in 1994 at a paddy merchant sile with preference compared to conventional column continuous dryers. More than 300 tons of paddy were dried without any problems.
点击下载:
PDF (175KB)
返 回