Pelletizing plant of the Gol-E-Gohar mining and industrial company consists of a burner, a dry ball mill (6.2 m × 13 m), and an air separator. The ball mill consists of a 2 m-long drying and an 11 m-long grinding chambers. The iron ore concentrate is fed to the drying chamber by a feed chute. It was found that when the feed moisture content increased from 1.3% to 3.5%, the throughput decreased ...

in recent decades, the issue of stress and its negative consequences such as violence in the workplace, increased accidents at work, absenteeism and burnout, have deleterious effects on the efficiency and economy. the aim of this study was to determine the occupational stress of pelletizing industry workers and its determinants. this study was descriptive-analytical and cross sectional. among w...

sleeping is an important physiological process, wielding deep effect on the spiritual and physical health of individuals. the present study has been carried out to investigate workers’ sleep quality in golegohar mineral industries co., sirjan, iran. this cross-sectional and descriptive-analytical study has been carried out in 2012. the statistical society included 345 workers in of psychologica...

Burning woody biomass for energy is gaining attention due to the environmental issues associated with fossil fuels and carbon emissions. The released from burning wood absorbed by plants and, hence, offsets pollution. purpose of this study was investigate combustion characteristics (heat calorific values ash contents) three timbers: Araucaria cunninghamii, Instia bijuga, Pometia pinnata recomme...

Biomass pellets are one of the most crucial feedstocks for bioenergy production on a global scale due to their numerous advantages over raw biomass resources. Pellets provide improved energy density, bulk moisture content, and homogeneity thereby reducing storage, handling, transportation costs. To produce high-quality solid fuel, it is necessary comprehend properties wood fuel. This study expl...

Mankind consumes as many fossil fuels per year nature produced during a million years. Furthermore, energy consumption has tripled in the last 60 years, and is expected to be doubled 2050, due technological economic takeoff of large emerging powers. In light this scenario, change policies should aimed promote efficiency use sustainable resources, such bioenergy, safely environmental friendly. B...

The object of research is the mode movement granules mineral fertilizers obtained in towers. subject effect physical and chemical properties granules, their size initial hydrodynamic parameters on speed tower. fertilizer industry characterized by high requirements for production fertilizers, which makes it promising to use granulation plants large unit capacity, tower production. resulting prod...