Abstract
The process of drying and heating of the lining must be given special attention. When the lining with a high residual moisture is sharply heated, and especially when contacts molten steel, local destruction is possible, which leads to a decrease in the lifetime of the steel ladle and to the occurrence of emergency situations..
Drying and warming up the lining of steel ladles should be done according to a strictly defined diagram. Therefore, automated installations are used to solve this problem. An important point in designing this kind of automation system is the type of heating: burners or elektotenti, as well as the choice of the optimal method for regulating the thermal power of the process..
The aim of the work is to study the thermal regime of the drying process, the development of an automatic control system with the least indicators for fuel consumption and heating duration, as well as the study of the influence of technological parameters on the process. In the work the functional scheme of automatic control system, sensors and control mechanisms is developed, the basic electrical scheme, the software is developed.
Based on the analysis of experience in the field of the metallurgical industry, it appears that the design solutions of stands for drying stands depend on: bucket capacity; type of cladding; drying / heating. The analysis of the control object is carried out and the main variables influencing the drying process are determined, the temperature regime and the plant power are fulfilled..
A structural diagram of the system for automatic temperature control of the drying process has been developed. Mathematical models of the ACS elements are obtained. Using the above structural diagram and mathematical models, a simulation model of the control system is developed in the Matlab & Simulink package..
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