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Instruments and Systems: Monitoring, Control, and Diagnostics

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Development of а Controlling the Raw Materials Supply to the Extrusion Plant Hoppers Hard-Software Tool Set
A.V. TISHCHENKO, E.G. KRYLOV, N.V. KOZLOVTSEVA

Food fi lm is widely used for primary packaging of products during their storage and transpor-tation. For the food fi lm production, an installation
is used, consisting of fi ve identical extru-sion blocks, in which granular raw materials based on synthetic polymers are processed. To improve
the reliability and controllability of the equipment, it is proposed to modernize the automated control system by replacing the existing functional
modules made in Italy by Moretto with an Omron programmable controller. The fi eld level of the automated process control system is proposed to be
additionally equipped with capacitive non-contact level con-trol sensors. Thus, the end of the loading of raw materials into the bunker can be set by a
time setting or a signal from a sensor. A functional diagram of the automation of the extrusion unit, a diagram for connecting control elements and an
algorithm for forming the queue for the op-eration of the extrusion plant bins have been developed.
Keywords: food fi lm, extrusion, feed control, extrusion machine, controller, OPC-server, SCADA

Pp. 17-23.

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