Goal of the article is to study the influence of temperature on the stress state of the housing of a continuous rotary unit, to determine the static and geometric parameters in the lining of the housing under the influence of high temperatures. Significance. The housing of a rotary unit, as a rotating shell, under the influence of loads not only bends and deforms in cross-sections, but also is significantly exposed to temperature effects, since the temperature during material firing reaches 1600…2300 ºС. Therefore, the wear factors of rotary kiln components, their operational parameters, the influence of thermal load on the stress state of such a shell of the furnace housing are a relevant task that requires further study. Methodology. When calculating the parameters of the housing of a rotary unit, the thermal deformation of the cross-section of the metal shell in the axial and annular directions, as well as significant thermal expansion of the lining, were taken into account. It was assumed that the temperature changes along the length of the housing, but is constant in each cross-section. The radial expansion of the lining in each arbitrary cross-section was also considered the same. A three-layer shell was considered, the inner layer of which is the inner surface of the lining. Results. The proposed mathematical relationships allow determining the influence of temperature on the change in static and geometric values in the lining of the rotating unit housing. Scientific novelty. Mathematical relationships have been developed for calculating static and geometric values in the lining of the rotating unit housing. Practical significance. The results of the calculations will allow predicting the operation of rotating unit housings and extending their service life.
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