挤压喂入式香蕉秸秆脱水粉碎机的设计

Design of Extrusion Feeding Banana Straw Dewatering Pulverizer

香蕉秸秆具有含水量高、秸秆粗大的特点,在海南很多农业生产中被当作废弃物处理,出现了浪费资源和污染环境的情况,而采用人工处理往往劳动强度大且粉碎不彻底。为此,基于海南香蕉种植模式,结合香蕉秸秆物理机械特性,提出了一种香蕉秸秆脱水粉碎处理方案,进而研制了挤压喂入式香蕉秸秆脱水粉碎机,通过理论研究及经验分析确定了挤压喂入式香蕉秸秆脱水粉碎机的关键部件结构及运动参数;采用理论建模,建立了喂入装置输送速度与秸秆粉碎装置切削速度之间的曲线模型。该机通过喂入辊挤压破坏香蕉茎秆纤维组织同时将香蕉茎秆匀速送入粉碎装置,秸秆粉碎刀径向垂直切割香蕉秸秆,从而达到粉碎后香蕉秸秆呈等长段状的效果。该机器的成功研制能有效降低热区蕉农的劳动强度,避免了秸秆资源浪费,有效促进香蕉秸秆的全面综合利用,促进了海南热区农业经济的发展。

Banana straw has the characteristics of high water content and coarse stalks.It has been treated as waste in many agricultural production in Hainan Province.Therefore,the waste of resources and the pollution of the environment appear,labor intensity is often high and crushing is not complete with manual treatment.Considering the problems above,based on Hainan banana plantation mode,combined with the physical and mechanical properties of banana stems,a banana stems dewatering and pulverizing treatment program,and then developed extruded feed banana straw dewatering and grinding machine,through theoretical research and empirical analysis to determine the structure of the key components of extruded banana straw dewatering and crushing machine and the movement parameters were established.The theoretical modeling was used to establish the curve model between the feeding speed of the feeding device and the cutting speed of the straw pulverizing device.The machine squeezed through the feeding roller destroy the banana stalk fiber tissue and the banana stalks into the crushing device uniform at the same time,straw crushing knife radial vertical cutting banana straw,so as to achieve crushed banana stalks showed equal length segment effect.The successful development of the machine can reduce the labor intensity of banana farmers effectively in hot zone,avoid the waste of straw resources,promote the comprehensive utilization of banana straw,and ultimately promote the development of agricultural economy in Hainan hot zone.