The main purpose is designing the fuzzy control algorithm for the simulation of thermogasodynamic parameters system on the turbojet core of dual turbojet-engines assembly test bench. The system for simulating thermogasodynamic parameters is a complex, multi-loop, nonlinear object. Authors made comparison between classical approach of synthesizing regulators and the use of fuzzy control. Therefore, the non-obvious aspects of the test bench behavior that underlie the rules for the fuzzy controller are analyzed. In result, authors determine the structure and algorithm of the fuzzy controller and also consider the rules and membership functions.

The article is devoted to the problems of aluminate solutions sorption purification from harmful organic impurities in the production of alumina from the Bayer experiment. The study of sorption of basic classes of organic impurities isolated from industrial aluminate solutions showed that magnesium and calcium hydrocarboaluminates have a high selectivity in relation to the most harmful classes of organic substances for the process. The results of the sorption process kinetics and thermodynamics studies are given, optimal technological parameters of sorption purification and conditions for the synthesis of active sorbents from alkaline aluminate solutions and activated magnesium and calcium raw materials are determined.

The article deals with the mechanism of transition of silicon to aluminate solutions in the process of leaching aluminum sinters in the production of alumina from nepheline. It was found that features of the transition in silica aluminate solutions by leaching cakes of various types relate to the structure of two-calcium silicate, and the dependence of reactions in the aluminate solution, its temperature and composition. A pattern has been established that determines the relationship between the SiO2/Al2O3 ratio in the list and the concentration of silica in aluminate solutions after leaching.

The object of research and development is an air heating and delivery automatic control system of the test bench for testing of gas turbine engines. It is based on a test bench equipped with a gas turbine engine, a long air duct with dampers regulating the airflow, and the tested mechanism. It must maintain the required airflow characteristics and the air charge motor’s operating mode line. To debug the algorithms of the object of research, a simulation complex was developed, which can reproduce all the features of the test bench’s behavior. The combination of the automatic control system and a simulation complex is a semi-natural model. Purpose is to develop a simulation complex for the debugging of the control algorithms and a mathematical model of the stand and the engine under test. As result, a simulation model based on the implementation of VeriStand technology was created. The program provides a uniform way to access heterogeneous models executed in Simulink. These models display different ways of describing the processes and features of the behavior of the modelled object. The simulation results can be compared to the behavior of a real system, which allows to debug the algorithms of the automatic control system. The developed simulation complex is currently used by specialists to make the mathematical models of the test bench components and the tested product more precise, as well as to debug the control algorithms.

The coagulation properties of HCCA in the system “aluminate solution - nepheline sludge” were studied, which allowed to improve the processes of thickening and washing of nepheline sludge. Solutions were developed aimed at the improvement of the coarse alumina production technology on the basis of increasing the efficiency of the carboaluminate method for separating Al (III) and Si(IV) hydroxo complexes and using the combined crystal growing modifier CaCO3 – HCCA.

An approach to the development of a control subsystem for the technological process of smelting copper-Nickel raw materials, which allows to stabilize the loading of charge materials into the furnace, is proposed. The structure of the control subsystem is described. The control problem, the control quality criterion, the control object model, control and perturbing effects are considered. Single-circuit and combined variants of subsystems of quality management of products of melting are offered. It is established that the control subsystem stabilizing loading of charge materials in the Vanyukov furnace should be combined: in addition to the feedback loop, it should contain a perturbation compensator on one channel, but as calculations show, the quality improves if all perturbations are compensated.

The article is devoted to the influence of brown coal additives on the sintering of the lime-nepheline charge in the technology of alumina production from nepheline. It is shown that carbon-containing materials added to the limestone-nepheline charge intensify sintering, and thus, contribute to a more uniform heat distribution along the furnace, improve the passage of the sintered material in the chain curtains, accelerate interaction of the charge components and increase recovery of alumina from the sintered mass. The mechanism of influence of coal during its combustion on the passage of solid-phase reactions in the charge is studied. Fossil brown coals with a high content of volatile substances and carbon graphite materials were used as coal additives.

The analysis of control quality of technological process of melting of copper-Nickel sulfide materials is carried out. The structure of the automatic melting control system is proposed, information and control channels are described. The algorithm of process control using fuzzy logic, which allows stabilizing the copper content in the matte within the specified limits.

Abstract The article is devoted to the influence of brown coal additives on the sintering of the lime-nepheline charge in the technology of alumina production from nepheline. The process of extraction of humic compounds from brown coal is considered, the effect of humic additives on the rheological properties of pulp depending on the size and moisture content of carbon-containing additives is studied.

The article is devoted to the improvement of the coarse-grained alumina production. The crystallization of aluminum hydroxide obtained by carbonization of deeply-desiccated aluminate solutions is considered. The effect of a new modifier based on calcium hydrocarboaluminate is studied. A mechanism of its behavior on the basis of CHCA participation in the process of formation of aluminum hydroxide precipitate is proposed. A technology of the new modifier synthesis is given Results of industrial experiments testing the elements of sand-alumina production technology are presented.

Any technological process including metallurgical processes is supported by the control system operation, accompanied by large information flows to be formed. However, the most part of this information is not used by specialists due to restricted capabilities of a human being that is, in fact, incapable of processing such information flows. It has been demonstrated that process control is significantly influenced by the human factor. This paper contains a methodology to process production information that permits the process personnel to use its potential in a more rational way to control the process. An approach has been reviewed to studying metallurgical processes using the analysis of indirect indicators of process management, namely the spectral density and auto-correlation function of main process parameters. A method to separate useful signals from noise has been studied. A method has been given to check the ACS management efficiency using primary material flows. The adopted methodology for processing experimental data permits interpreting the obtained results for their further practical application to develop new algorithms for process control and improve the existing control system.

The possibility of applying hydrocarboaliminate calcium, synthesized in aluminum processing for production of special cement brands as by-products in a complex processing of nepheline raw material, is justified in this article. Basic technical characteristics of new products are provided.

The article describes harmful factors from the environmental point of view that accompany almost all stages of the production of non-ferrous metals. Due to the fact that this industry requires large volume of water, these factors require special attention when cleaning wastewater. The contamination of wastewater by non-ferrous metallurgy is characterized by metal ions, particulate pollutants, acids, SAS, etc. A common feature of all these substances is harmfulness, however, they are often very aggressive and toxic. The article focuses on the possible use of hidrocarboaluminates calcium as an active ion exchanger for cleanup wastewater metallurgical production.

The possibility of utilization of municipal solid waste in the conveyor roasting cement production machine along with obtaining secondary thermal energy, what could reach 15-20% of the principal quantity of the heat energy required for the conduct of the process was considered. The inclusion of ash obtained from the incineration of municipal solid waste after preprocessing into the cement clinker composition was proposed. The reduction of the emission of dioxins and furans in the atmosphere and the impact on the environment was achieved as a result.

In this article, a one of approaches of development of the simulators for oil refinery operator is described. Shows the simulator structure, development of process simulation block, learning scenario, virtualization space, fault diagnostic, analyzing algorithm and results of simulator diagnostics. This simulator can be used for studying of main characteristics of technological processes and control actions, that would ensure the energy saving and safety in oil refinery plant.

Рассмотрена возможность применения оптико-электронного метода контроля («технического зрения») и мониторинга некоторых технологических параметров на примере электролитического производства алюминия из криолит-глиноземного расплава с целью повышения эффективности управления процессом.The possibility of using of optoelectronic method of monitoring (the technical vision) some technological parameters for example the electrolytic process of aluminum producing from a liquid electrolyte on purpose to improve the efficiency of the process control is discussed.

The surface state of the cryolite-alumina melt of the aluminum electrolyzer is investigated using an acA640-120gc industrial color camera (Basler, Germany) and AMS CAM (automated measurement system for cryolite-alumina melt) software package. The dependence of varying the total brightness at various alumina concentrations is found. The growth rate is determined and features of formation of a crust on the melt surface with various cryolite ratios are revealed.

The possibility of using an optoelectronic method of monitoring (“technical vision”) some technological parameters using the example of the electrolytic production of aluminum from cryolite-alumina melt in order to increase the process control efficiency is considered.

The enrichment is an integral part of the production process at the moment. This article evaluates the fractional composition of crushed rock as a result of the vibrating screen. The research is based on the use of visual screening process analysis and computer processing.

Repeated episodes of 1-h restraint stress were accompanied by a decrease in the sensitivity of blood leukocytes and cytochrome P450-dependent monooxygenases of the liver to recombinant IL-1β. These changes are associated with the anti-inflammatory hepatoprotective effect of chronic stress.