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Caustic and sintered magnesia are the main products of magnesite thermal treatment. Caustic magnesia is generated by decomposition of MgCO3 to MgO and CO2. Sintered magnesia is generated at high temperatures at which a liquid phase is produced. Caustic magnesia is broadly used product. Because of high basicity, MgO is very convenient for reduction of water and environment acidity. The production of...
Diffuse combustion is one of the basic mode of the heat generation. Solution of the diffuse combustion problems very tightly connected with specific conditions of its utilization. Insufficient regarding of the specific conditions can significantly decrease their performance (in comparison by their technical possibility). On the other hand, by proper solutions of diffuse combustion, activity of thermal...
Rotary furnaces belongs to the principal thermal apparatuses for material processing in many industries branches. Because of their slow dynamics, the model based predictive control is the most suitable control approach. Developed control system is of three level hierarchies. At the optimization level optimal control trajectory and its responding controls are determined at the period of material charging...
In the last years new technologies in the area of granular materials thermal treatment have been developed. Basic improvement was achieved in significant increasing of heat exchange area, heat distribution and in the hydrodynamics. Development and operation of this thermal apparatus is based on physical and mathematical modelling, which can significantly contribute to acquire required critical knowledge...
For process control two basic approaches are used: outside - in approach and inside - out approach. Outside-in approach is user oriented. Process is forced to satisfy user objectives. Inside-out approach is process oriented. At this process driven approach process has dominant position and conditions have been created to realize it by the most natural way. Process oriented approach is based on knowing...
Mathematical models serve as a basic tool for information gaining about technological objects and processes. Suitable mathematical model, which can be effectively used as a integral part of the process control system, requires not only adequacy to the modeled objects but also adequacy of the computing time to the real time, because one of the main criteria of the optimal model is its time saving....
Process control is one of the principal approaches to increase process quality and performance. Model based control system is based on real time mathematical model, which can be used at individual levels of the process hierarchy in the on line real time control system. The model is used for interpretation, planning, and execution of the tasks through the autonomous controllers. For the outlining tasks,...
Parallel data processing belongs in the present time to the basic approaches. Its realization is possible by using of multi-core processors or we can use new trend with graphic accelerators on the new type of graphic cards. However this process is not straightforward and it requires an adequate model structure and application program parallelization. Adequate model structure includes not only parallelization...
Rotary furnace simulation model was used for a model-based control on behalf of the on-line interactive communication. Developed model is used for the support of direct and supervisory control. On the direct control level model is used for process observation and process prediction. On the supervisory level model is used for process planning, and execution of the task segments through the autonomous...
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