EXPERIMENTAL MEASUREMENTS OF POLLUTING EMISSIONS FROM COMBINED FEED FACTORIES FOR ENVIRONMENTAL PROTECTION
Specialists in the field know very well that an important source of food for animals raised on livestock farms is the combined feeds, because in addition to ground cereals they also contain proteins, amino acids, minerals, vitamins and sometimes even certain medicines, energizers or flavors. The process of obtaining different varieties of combined feeds involves a complex technological flow, with specific stages of production. Mixing, sterilization and granulation activities, where steam jets are used at very high temperatures determine the elimination of different types of noxious substances in the air. In this article are presented the experimental measurements performed at the critical points of working installations from a combined feed factory, on the entire duration of the assortment lot. Considering the purpose of the performed researches, the critical measurement points were established at the exit of steam generator, where steam jets are obtained at very high temperatures, with values of approximately 150-180ºC. By using a gas analyzer of the type TESTO 350 M/XL, the measured values allow a complete analysis of the types of noxious emissions. The results of experimental measurements show that the fluctuations obtained during the measurements are very small, of the order 2 mg/m 3 N for each type of noxious eliminated, which indicates a very good regulation of the work process. The average values of the eliminated noxious substances (CO, NOx, CO2) shows the full compliance with European environmental quality standards. The use of high-performance equipment and work devices, with a high degree of automation and computerization allows rigorous control over the different types of pollutants released in the atmosphere by the working installations from combined feed factories.
EXPERIMENTAL MEASUREMENTS OF POLLUTING EMISSIONS FROM COMBINED FEED FACTORIES FOR ENVIRONMENTAL PROTECTION
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DOI: 10.37572/EdArt_2803254512
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Palavras-chave: combined feeds, noxious emissions, automation, environment
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Keywords: combined feeds, noxious emissions, automation, environment
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Abstract:
Specialists in the field know very well that an important source of food for animals raised on livestock farms is the combined feeds, because in addition to ground cereals they also contain proteins, amino acids, minerals, vitamins and sometimes even certain medicines, energizers or flavors. The process of obtaining different varieties of combined feeds involves a complex technological flow, with specific stages of production. Mixing, sterilization and granulation activities, where steam jets are used at very high temperatures determine the elimination of different types of noxious substances in the air. In this article are presented the experimental measurements performed at the critical points of working installations from a combined feed factory, on the entire duration of the assortment lot. Considering the purpose of the performed researches, the critical measurement points were established at the exit of steam generator, where steam jets are obtained at very high temperatures, with values of approximately 150-180ºC. By using a gas analyzer of the type TESTO 350 M/XL, the measured values allow a complete analysis of the types of noxious emissions. The results of experimental measurements show that the fluctuations obtained during the measurements are very small, of the order 2 mg/m 3 N for each type of noxious eliminated, which indicates a very good regulation of the work process. The average values of the eliminated noxious substances (CO, NOx, CO2) shows the full compliance with European environmental quality standards. The use of high-performance equipment and work devices, with a high degree of automation and computerization allows rigorous control over the different types of pollutants released in the atmosphere by the working installations from combined feed factories.
- Cristian Vasile