Experimental Study On Producing Different Grist With Extruder

With the rapid development of animal husbandry, extrusion technology has become an increasing concern as an important means of feed production. To improve the production capacity, reduce production costs and improve the adaptation of extruder to different raw materials have become the most urgent task now.The paper expatiated on the mechanism and process of grain extrusion, deduced yield model of the extrusion with reference to the screw extruder molding plastic theory. According to the extrusion theory as well as the production model, the effect of extruder configuration, screw speed, and raw materials to extruder specifications were also discussed.In this paper, a three-factor two-level orthogonal test was carried out. According to the analysis of test data, optimal configuration for soybean was gained. We can see that the screw speed affect output obviously, the higher the speed, the greater the extruder's output. Besides, when changing the speed, it is necessary to properly adjust the size of the screw configuration and dies to improve the screw transmission capacity of materials in case of plugging or steam back-flow in the extruder. For specific models, to select the best operating parameters can maximize utilization of extruder and improve economic efficiency.Rice bran, corn and wheat were also processed with ETS195 in this paper. The paper compared system parameters of extruder when processing different materials, and gave some suggestions for the Multi-functional Extruder processing different materials.