Использование программного обеспечения для определения и прогнозирования показателей качества экструдированной продукции

Abstract

The article describes the means of obtaining numerical values of grain quality parameters of extruded shredded wheat. Extruded production quality depends on grain durability and uniformity. The final product application range can greatly change quality requirements. Granule durability is estimated by a normal voltage impulse, blending and uniformity – by the shear stress impulse arising in the work materials during extruding process. Based on the mathematical model which describes the production technology, special software was developed. It allows calculating technical and economic data (productivity, efficiency, power, pressing time, force operating on working bodies, torque effect, as well as normal and shear stress impulses). Carryed out physical experiments helped to get numerical figures of grain durability, destructibility and an increase of granule volume due to certain kinematic, geometrical and design parameters of an extruder’s screw. A computing experiment with the developed software was carried out using the same parameters. Empirical dependences, which connect indicators of finished goods quality with impulses of normal and shear stress were obtained using the second software appli-cation. Special surface responses were created to improve visualization of the results. The responses graphically display du-rability, destructibility, volume increase in normal and shear stress impulses. Thus, it is possible to predict numerical criteria of finished goods quality making computing experiments (using the first software) and varying a wide data range. It allows creating extrusive equipment with set requirements and characteristics at the outline design stage.