METHOD OF EXTRUDER AUTOMATIC CONTROL Russian patent published in 2002 - IPC

FIELD: food industry, particularly, automation of processes of extrusion processing of thermoliable products. SUBSTANCE: method includes supply of initial product with different initial humidity to extruder in two flows through mixer; setting of extrudate humidity by affecting the ratio of consumption of initial product in two flows; measurement of current value of extrudate bundle diameter and cross-section area of matrix outlet to determine extrudate swelling factor; additional correction of product pressure in prematrix zone by acting, first, on variation of matrix inlet cross-section and then, on ratio consumption of initial product. Invention is used in devices for production of extruded food products. Method provides for increasing quality of ready products (extrudates) produced from thermoliable initial materials due to pressure stabilization in extruder prematrix zone. EFFECT: higher efficiency. 2 dwg, 1 tbl