| In view of the contradiction existing between supply and demand arisen from seasons and regions and the problem of serious nutrition loss in the production process of making fresh herbage material into hay product, an experimental study of the compression process was conducted for the typical fresh herbage materials such as alfalfa, Sudanese sorghum and corn stalk on the 9KG-350 model high density baler. Based on the data of experiment, a mathematical model in term of the relationship between compression pressure and displacement as well as the compression pressure and density was established and a theoretical analysis was carried out for the compression process of the said three kind of herbages at different feeding rate, having acquired the law for the feeding rate to exert influence on the basic parameters in the compression process. On the basis of the above, a comprehensive analysis on the relationship between the feeding rate and the maximum compression pressure, maximum compressed density, productivity of baler and the power consumption were conducted respectively, having determined more reasonable selection of feeding rate and also advanced a theoretical basis for the optimum design of the baler. |
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