Experiment Study on Compression Characteristics of Silage Corn Crushed Material Based on Response Surface Optimization

PurposeTo study the compression characteristics of crushed silage corn materials and solve the problems of high energy consumption and low compression density of silage corn compression machinery.

MethodsUsing feeding amount, compression density, and compression speed as experimental factors, and specific energy consumption, compression time, and maximum compression force as experimental indicators, a quadratic regression orthogonal experiment was conducted to analyze the significance of experimental factors, establish a regression model, and optimize the response surface of the experimental results.

ResultsThe order of influence on specific energy consumption among various experimental factors was compression density>feeding amount>compression speed, the order of influence on compression time was compression speed>compression density>feeding amount, and the order of influence on maximum compression force was compression density>compression speed>feeding amount. The optimal factor level combination after response surface optimization was the feeding amount of 0.90 kg, compression density of 550 kg/m³, and compression speed of 245.50 mm/min.

ConclusionThe regression model obtained in this study has small error and high reliability of optimization results, which can be used for selecting process parameters for the preparation of silage corn feed and also provide theoretical reference for the design of silage corn compression equipment.