Optimization of slag conditions and development of control methods for liquid-phase metallurgical slime reduction process

Subject of investigation: liquid-phase reduction process slags. Purpose of the work: optimization of the slag conditions and development of control methods for the process of the liquid-phase reduction of converter and blast furnace slime and red mud on the basis of study of physical properties of slags. The work involved performance of the investigation of slag physical properties, and a theoretical analysis and experimental industrial tests of the liquid-phase reduction process control methods. The results of the work include proposals of a new methodology for measuring the density of liquid slags and improvement of the methodology of measurement of the viscosity and electrical conductivity of the liquid phase slags. It is indicated that the pyrometallurgical unit can be regarded as a fuel galvanic cell. Slag conditions are recommended for the process of the liquid-phase reduction of metallurgical slags at which saving of burden materials is achieved and power consumption is decreased. Developed are a control method and a device for its realization. The method is based on the registration and analysis of the electrical potential differential. The recommended slag conditions made it possible to completely exclude fluxes with acidic dead rock from the burden and to reduce the specific consumption of O_2 and coalAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio