Abstract
The features of heat and mass transfer inlining of high-temperature tunnel kiln for the burning of refractory materials are revealed by numerical simulation of heat transfer processes. Use of modern computer calculation programs permits to choose optimal constructions of trolley walls and heart lining. This ensures improved hermeticity of workspace and 15-20% reduction of heat loss. We studied the operation of a hightemperature of the unit with a combined system that ensured efficient burning of natural gas as well as regulation of temperature regime in the thermal aggregate workspace. A procedure was advanced to calculate consumption of fuel by gas burners and hot air over burning zone positions of high-temperature tunnel kilns when using a combined system of natural gas burning. The heat work of a tunnel kiln was optimized. This permitted to supply maximal quantity of hot air and natural gas into the initial positions of burning zone of tunnel kiln and to ensure technologically required temperatures of products burning (1780-1800ºС).
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