A brief summary of the research and engineering work performed by professors, graduate students, and students of the Department of Furnaces, Control and Automation of Metallurgical Processes in 2000 is given. Two main directions of research activities were modeling of technological equipment for metal production and modeling of control systems for industrial metallurgical furnaces. In the first direction of research the following mathematical models were developed: converter conversion of smelting shop of Pechenganickel metallurgical plant; ore thermal smelting process; dissolution and liquation processes; waste water treatment using calcium hydrocarboaluminate. The technology of zinc-tin iron dust processing in a rotary kiln was also developed. A method of separating suspensions using LAROX PF press-filters was introduced. The second area of research includes works on development of spectral density method for synthesis of control systems with intermittent lag and on improvement of efficiency of manipulation of gas regimes in converters.
Due to the insufficiency of operational technological control of the process of electrolytic aluminum production, its automated control has to be based on methods of indirect estimation of unmeasured parameters. An algorithm for estimating one of the most important non-measurable parameters - the current alumina concentration in the melt - from the measured electrical parameters with their nonlinear relationship has been developed.
In 1971, employees of the NMMC GMOITs proposed a technology for converting mattes without adding siliceous fluxes, which, according to the authors, would reduce the output of converter slags and, in the future, process them with iron extraction...
General characteristics of smelting. In the practice of heavy non-ferrous metals production, new technological processes are becoming increasingly widespread, based on improving the conditions of heat and mass transfer, using oxygen and heated blast (due to secondary energy resources) as an intensifier, and using more economical types of fuel ...
One of the most important structural elements of the unit for continuous conversion of matte to the method of LGI - “Gipronickel” is the unit of blast supply to the melt ...
In the case of a complete cycle of continuous converting with obtaining in one unit from matte the final product - matte and the output of acceptable converter slag, it is necessary to use a two-chamber unit. In this case the organization of mass transfer between the chambers is of crucial importance ...
One of the directions of improvement of pyrometallurgical processing is the creation of multi-chamber units, in separate chambers of which different characteristic processes are carried out. Such combined units of ore smelting and slag depletion, conversion and depletion, smelting, conversion and depletion have been developed in recent years in the USSR and abroad ...
For stable operation of the cooled element in the melt, it is necessary to create on its surface a layer of protective garnissage and to ensure that the temperature of the wall of the cooled element is lower than the maximum allowable temperature for the material from which it is made. Under known external conditions of operation of garnissage elements, this can be achieved by choosing the material of construction of the element, cooling coolant, and cooling mode ...
Increasing the productivity of ore thermal furnaces (RTPs) for smelting oxidized nickel ores for ferronickel is limited by the intensive wear of the wall lining at the slag-ferronickel interface ...
В основу разрабатываемого Ленинградским горным институтом совместно с институтом Гипроникель процесса непрерывного конвертирования положена верхняя продувка штейновых расплавов в стационарном агрегате ...
Процесс непрерывного конвертирования штейнов с верхним подводом дутья предусматривает наличие в агрегате обеднительной шлаковой камеры, в которой первичный шлак, образующийся в продувочной части непрерывного конвертера, подвергается обработке с целью обеднения ...
