Thermal Structure Coupling Research and Thermal Fatigue Life Prediction of the Large Mining Machinery Brake

Liu, Zhu Li; Zhao, Min; Li, Meng Li

doi:10.4028/www.scientific.net/amr.936.2035

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…The temperature field of the bearing seat of the continuous casting roller was analyzed by Dai Wei [18] using ANSYS. Based on the research and analysis of the service life of the cast roll, Li Shande [19] carried out coupling modeling and solving analysis of the thermal structure of the roll sleeve in the continuous casting and rolling process based on ANSYS.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Heat Transfer of Roller Slag in Centrifugal Preparation of Inorganic Fiber

Liu,

Wang,

et al. 2023

Processes

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The synergistic preparation of aluminum silicate ceramic fibers from dust removal ash and fly ash is a newly developed process that achieves green and high added value treatment of solid waste. In this process, the centrifugal fiber forming method is used to treat molten slag to obtain aluminum silicate ceramic fibers. During the production process, the centrifugal roller, as a key component in fiber forming, is in long-term contact with high-temperature slag. The heat transfer between the two causes a huge temperature gradient inside the roller material, causing significant thermal stress inside the material, which has a significant impact on the stability of the centrifugal roller structure and its working condition. This article mainly conducts numerical simulation research on the heat transfer between the roller and the slag during the centrifugal fiber forming process, providing theoretical support for ensuring the structural stability of the roller and improving its service life. The research was carried out using the FLUENT module of the ANSYS software (V2021R1), and the heat transfer model of the slag and roller was established. The effects of the internal circulating water, different slag temperatures, different slag film widths, and different boundary layer thicknesses on the heat transfer of the roller were analyzed. The results show that the water temperature at the outlet is about 6 °C higher than that at the inlet on average; when the temperature of the slag increases by 1 °C, the temperature of the roller surface in contact with the slag increases by 0.91 °C; when the width of the slag on the roll surface is 11–17 mm and the slag thickness (boundary layer thickness) is less than 1 mm, it is beneficial for fiber production.

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Section: Introductionmentioning

confidence: 99%