Automatic control scheme development for process of sulfatizing roasting of iron-manganese concretions in fluidized bed

International Conference on Mechanical Engineering, Automation and Control Systems 2018

Darin, A.A.^1 ; Gubin, V.V.^1

Saint-Petersburg Mining University, 2, 21st Line, St Petersburg

199106, Russia^1

关键词: Continuous mode;    Control process;    Granulometric compositions;    Laboratory facilities;    Laboratory studies;    Quality indicators;    Roasting process;    Technological factors;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/560/1/012012/pdf
DOI  :  10.1088/1757-899X/560/1/012012

来源: IOP

【 摘 要 】

The article describes the problem of regulating the process of sulfatizing roasting in a fluidized bed (FB) furnace of an enlarged laboratory facility for processing iron-manganese concretions (IMC) together with pyrite concentrate in a continuous mode. The features of roasting in the fluidized bed and technological factors affecting the control process and, as a consequence, the quality indicators of the technology are considered. The results of large-scale laboratory studies on a continuous installation of a FB controlled in manual mode are given. There is a scheme of adaptive automatic control of the roasting process in the FB with regulation of feed charge components. It allows maintaining a stable hydrodynamic state of the fluidized bed and control of key parameters, such as granulometric composition of the cinder, dust removal from the FB, blast pressure, temperature, etc., affecting the sulfatization of IMC metals.