No abstract

Розроблено модель для дослідження ефективності застосування рекурсивного алгоритму найменших квадратів у складі системи адаптивного прогнозуючого керування процесом тер-мічної обробки обкотишів та виконано її моделювання у пакеті Simulink. Отримана система продемонструвала високу якість оперативного оцінювання параметрів процесу, що дозволяє рекомендувати розроблений метод формування адаптивного прогнозуючого керування для авто-матизації процесів термічної обробки обкотишів.Ключові слова: адаптивне прогнозуюче керування, термічна обробка обкотишів, рекурсивний алгоритм найменших квадратів.Ruban S., Kharlamenko V., Tsvirkun S. IntroductionEnrichment of iron ore in mining enterprises (ME) often ends with sintering of concentrate in sintering machines or straight grate induration machines (indurating furnaces). In terms of features of smelting process in blast furnace the end product of indurating furnaces -pellets -has a number of advantages compared with sinter, namely high durability during prolonged storage, transportation and transshipment, more uniform particle size distribution that provides better gas permeability of layer of charge materials in the blastfurnace and, consequently, leads to increasing the productivity of iron smelting and reduction of slag production. In addition, as the raw material for the production of pellets are often used finely powdered concentrates, whose share in the domestic oredressing plants are growing in recent years, due to the decrease of reserves of rich ore and increasing the share of poor kinds of ores. Straight grate induration machine (SGIM), in which the heat treatment of pellets is conducted, is the basic unit that affects to the productivity of the pelleti zing plant and quality of the finished product. Analysis of technical and economic performance and results of the modernization of pelletizing plants of potential competi tors shows that domestic SGIM have the reserves of in creasing of productivity up to 10-15 % and reduction of specific consumption of natural gas by 15-20 % [1]. Improvement of the methods and systems of control of heat treatment of pellets is one of the most promising directions of solving these tasks. The object of research and its technological auditThe object of research -the processes of automatic control of iron ore pellets heat treatment on induration machines during pelletizing of iron ore raw stock on mi ning enterprises.To increase performance, obtaining high quality para meters of pellets, reducing specific energy consumption it is necessary to provide the desired temperature distribution along the induration machine by stabilizing the tempera ture of the gas in each gasair chamber. Thus, the main technological purpose of the control of firing temperature regime will be considered temperature stabilization in each gasair chamber of induration machine with minimal devia tions from preset values and with minimum outlay of heat carrier. For heated zones of SGIM (heating and firing) it is advisable to carry out the temperature stabilization ...