Simulation of heat losses and temperature of blast furnaces tuyeres

Tarasov, Yuriy; Radyuk, А. G.; Gorbatyuk, S. M.

doi:10.1051/matecconf/201712906031

Cited by 15 publications

(2 citation statements)

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“…Table 1 shows the main cooling parameters of the tuyere in the 5800 m 3 blast furnace. Using the calculation method of Tarasov et al, [12,13] the tuyere heat-transfer process is simplified into a steady-state heat-transfer process as shown in Figure 2. Equation ( 1) is the calculation model of tuyere heat-transfer process…”

Section: Research Object and Methodsmentioning

confidence: 99%

“…Table 1 shows the main cooling parameters of the tuyere in the 5800 m 3 blast furnace. Using the calculation method of Tarasov et al, [ 12,13 ] the tuyere heat‐transfer process is simplified into a steady‐state heat‐transfer process as shown in Figure 2 . Equation (1) is the calculation model of tuyere heat‐transfer process

$$q = \frac{T_{2} - T_{1}}{\frac{1}{\left(\alpha\right)_{1}} + \frac{S_{1}}{\left(\lambda\right)_{1}} + \frac{S_{2}}{\left(\lambda\right)_{2}} + \frac{1}{\left(\alpha\right)_{2}}} = \left(\alpha\right)_{2} \left(\right.

…”

Section: Research Object and Methodsmentioning

confidence: 99%

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Analysis of Erosion Mechanism of Wear‐Resistant Layer in Large Blast Furnace Tuyere

Zhou

Zhang

et al. 2023

steel research int.

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The blast furnace tuyere is a crucial component for blast furnace production. The frequent damage of the copper tuyere impedes the smooth operation of the blast furnace. Welding a wear‐resistant layer on the tuyere can extend its service life, but it still falls short of the expectation in a large blast furnace. This paper aims to elucidate the erosion mechanism of the wear‐resistant layer. A scanning electron microscope (SEM), an energy dispersive spectrometer (EDS), and an optical microscope (OM) were employed to examine the morphology, composition, and metallographic structure of the samples obtained from a 5800m3 blast furnace tuyere in China, as well as to calculate the frequency of daily slag crust shedding from cooling staves. The results indicate that the main cause of the erosion of the wear‐resistant layer is the shedding of slag crust due to the temperature fluctuation of the cooling staves. Finally, the erosion mechanism of the wear‐resistant layer is proposed. It is suggested that the formation and propagation of cracks caused by erosion of slag and hot metal are the primary failure mode of the wear‐resistant layer.This article is protected by copyright. All rights reserved.

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Section: Research Object and Methodsmentioning

confidence: 99%