ENERGY-SAVING FEATURES OF RAW MATERIAL THERMAL PREPARATION IN TERMS OF PROCESSING OPTIMIZATION

The authors study thermal processes of dense-phase particulates baking and sintering. The article considers an up-to-date research and training problem of these thermally-activated processes optimization on conveyor-based calciners. The study includes the problem of programmable dense-phase warming, considering kiln`s technical restrictions and technology abilities of burning mechanism. The authors establish a task of burning mechanism optimal control, which can be solved by converting into multicriteria optimization. Control parameters: heat-transfer agent`s temperature at dense bed entry and its sweeping velocity. Control criterion: a reacting degree minimum and sintering of raw material. The limitations are set on: heat rate, temperature gradient and others, concerning with technical features of an aggregate. The study reveals a condition, forming a fading because of endothermic physicochemical transformations` heat absorption heat wave, which penetrates into the layer and intensifies decarbonization and sintering prosseses, providing the floor price on power imputs. Considering the obtained results, the authors present the operation conditions of conveyor-based kiln, providing resources and energy saving in particulates thermal preparation technology. The article deals with an applicability as alternative energy source, oxyhydrogen accumulator – a source of power protection.

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