AUTOMATIC CONTROL THROUGH COMPUTER OF A VOLUMETRIC SCREW DOSING SYSTEM DESTINED FOR AGRO-FOODS BULK SOLIDS

摘要

The paper presents a volumetric dosing stand used for the dosing of bulk solids from food industry and agriculture that was controlled through computer using a microcontroller. The microcontroller uses the information from the incremental angular sensor and indicates the screw conveyor displacement and converts it into the theoretical material flow that is required. Also it is monitored the gravimetric weight of the fed material into a weight scale and the weight is plotted into a graph that will run together with the theoretical material flow. This stand allows the better understanding of the flow behaviour for different food bulk solids that are dosed using screw dosing systems and can be applied to other volumetric systems, too.