Optimal moisture content control on the pelletizer lines of a feed mill

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Supervisor:
Dr. Kiss Bálint
Department of Control Engineering and Information Technology

During industrial feed manufacturing one of the most important factors is the moisture content, since it has a great influence on the feeds nature. Even a slight difference of 1 or 2 per cent can cause a radical decadence in terms of quality. An average sized fodder manufacturing business produces from 100 to 200 tons of ready-made feed daily, considering this only 1 per cent difference in moisture leads to 1 or 2 tons of loss every day which can cause a loss from 300 up to 600 tons each year to the given feed manifacturing company. In addition it is important to mention, that usually the moisture content varies between 10 to 14 per cent even though according to the regulations it can only make it to commerce if the value is 13,5-14 per cent.

Considering the facts written above it is easily forseeable that there is a serious need for an accurate and cost effective moist content controlling method.

The point of my thesis is to find a solution which introduces a new process so the fluctuation of moist is minimalized in the final product and maintains constant values during the cooling period following extrusion, so a continuous level of quality is ensured via a reliable procedure.

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