摘要
设计了一种离心气流清选和回转筛选组合式的风筛式清选试验台,论述了该试验台的基本结构和工作原理,分析确定了主要结构和运行参数。试验研究了离心风机转速、清选筛转速、筛面型式和提升螺旋输送器转速等主要影响因素与清选性能指标的关系,结果表明影响清选性能的因素主次顺序为清选筛转速、离心风机转速、筛面型式、提升螺旋输送器转速,且在离心风机转速为2 200 r/min,清选筛转速为60 r/min,筛面体采用长对角线6.7 mm、短对角线4.0 mm的菱形孔网眼筛,提升螺旋输送器转速为1 150 r/min时,清选性能指标达到最优。
An air-and-screen cleaning unit test-bed combined with centrifugal air flow cleaning and rotary screening was developed. The basic structure and working principle of cleaning unit test-bed were discussed, and the main structural and operating parameters were determined. Experiments were carried out in order to find the relationship between cleaning performance and main factors, such as centrifugal fan rotating speed, screen rotating speed, screen surface type, and screw conveyor rotating speed. An orthogonal test and the method of comprehensive analysis were carried out to find primary and secondary factors affecting the cleaning performance, which were screen rotating speed, centrifugal fan rotating speed, screen surface type, and screw conveyor rotating speed. When the centrifugal fan rotating speed was 2 200 r/min, the screen rotating speed was 60 r/rain, screen surface type was diamond-shaped hole mesh screen with the long diagonal of 6.7 mm, short diagonal of 4.0 mm, the screw conveyor rotating speed was 1 150 r/min, the optimum operation condition was obtained.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2013年第10期80-85,79,共7页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家油菜产业技术体系专项资助项目(CARS-13)
'十一五'国家科技支撑计划资助项目(2010BAD01B06)
中央高校基本科研业务费专项资金资助项目(2011PY021)
华中农业大学自主科技创新基金资助项目(2012SC17)
关键词
油菜
联合收获机
清选
试验台
试验
Rape
Combine harvester
Cleaning
Test-bed
Experiment
作者简介
廖庆喜，教授，博士生导师，主要从事油菜播种机械与高粗茎秆作物收获机械研究，E-mail：liaoqx@mail．hzau．edu．cn
