Effects of Threshing Machine Basket Shape and Size on Leaf Structure in Tobacco Leaf Processing
[Objective]In order to optimize the leaf structure,reduce the long particle and improve the medium particle in tobacco leaf pro-cessing.[Method]Taking Huili flue-cured tobacco B3F as test materials and taking the basket shape and size of first stage thresher as the ob-ject,effects of threshing machine basket shape and size on leaf structure in tobacco leaf processing were studied.[Result]The results showed that:the treatment A2 B2 was best,which can effectively reduce the long particle rate,improve the medium particle rate,and maintain the fine particle rate and tobacco dust rate without significantly increasing.When using the 7.62 cm basket size,compared to diamond basket shape,regular hexagon basket shape significantly reduced the long particle rate by 6.87%,significantly improved the medium particle rate by 3.90%,reduced the long particle rate and medium particle rate,the fine particle rate and tobacco dust rate were higher.When using the 8.89 cm basket size,compared to diamond basket shape,regular hexagon basket shape significantly reduced the long particle rate by 8.10%,significantly improved the medium particle rate by 5.72%,reduced the long particle rate and medium particle rate,the fine particle rate and tobacco dust rate were no significant difference.When using the diamond basket shape,compared to 7.62 cm basket size,8.89 cm basket size long particle rate,medium particle rate,long particle rate and medium particle rate were no significant difference,significantly reduced the fine particle rate and tobacco dust.When using the regular hexagon basket shape,compared to 7.62 cm basket size,8.89 cm basket size long particle rate was no significant difference,improved the medium particle rate by 2.23%,improved the long particle rate and medium par-ticle rate by 1.36%,significantly reduced the fine particle rate and tobacco dust rate.[Conclusion]Comprehensive comparison suggested that using the regular hexagon basket shape and 8.89 cm size of first stage thresher,can optimize the leaf structure,reduce the long particle rate,improve the medium particle rate and maintain low tobacco crushing.
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