During combustion of alternative fuels in the material inlet end of cement rotary kilns, local reducing conditions may occur and cause reductive decomposition of sulfates from calcined cement raw materials. Decomposition of sulfates is problematic because it increases the gas-phase SO2 concentration, whichmay cause deposit formation in the kiln system. In this study, the release of sulfur from ...

In this paper the effect on energy consumption and pollution of fuzzy automatic control of a rotary kiln is investigated. The computer-based fuzzy control system is installed at the Larko ferronickel plant in Larymna, Greece, by the Danish firm F .L. Smidth & Co. A/S. Operation characteristics for the manual operation against automatic control are defined and compared. Preliminary results show ...

The numerical modelling and process simulation for the fault diagnosis of rotary kiln incinerator were accomplished. In the numerical modelling, two models applied to the modelling within the kiln are the combustion chamber model including the mass and energy balance equations for two combustion chambers and 3D thermal model. The combustion chamber model predicts temperature within the kiln, fl...

The experimental investigation presented in this research was performed order to examine the possibility of removal SO2 from flue gases by cleaning with a solution lime suspension and formic acid (Ca(OH)2 HCOOH). Research conducted laboratory plant (rotary kiln) 44 kW. mass (LS) 400 g. LS homogenized (mixed) sample cup 2 g (0.5%), 4 (1%) 8 (2%) 60% acid. placed gas washing bottle, where partial...