Blast Distribution Over the Air Tuyeres of a Blast Furnace

Полинов, А. А.; Павлов, А. В.; Онорин, О. П.; Spirin, N. А.; Гурин, И. А.

doi:10.1007/s11015-018-0676-0

Cited by 9 publications

(3 citation statements)

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“…With the development of large-scale blast furnaces, the number of tuyeres in the blast system is gradually increasing. The number of tuyeres in a 5500 m 3 blast furnace can reach 40. The main function of the blast system of the blast furnace is to blow hot air around 1200℃ into the interior of the blast furnace to provide heat and oxygen.…”

Section: Introductionmentioning

confidence: 99%

“…As one of the four major operating systems of the blast furnace, the blast system mainly affects the depth and height of the raceway in the furnace, and directly determines the initial distribution of gas flow in the furnace. Moreover, with the development of large-scale blast furnaces, the circumferential uniform distribution of gas flow is also crucial [1][2][3][4]. Therefore, it is necessary to study the uniformity of air flow distribution at each tuyere of the blast system of the blast furnace.…”

Section: Introductionmentioning

confidence: 99%

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Numerical simulation of air flow and distribution in the blast system of blast furnace

Xu,

Qing,

et al. 2024

J. Phys.: Conf. Ser.

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A three-dimensional geometric model of the blast system of the 5500 m3 blast furnace was established in this study. The velocity distribution of the blast system was calculated by OpenFOAM, and the velocity distribution at cross sections of the round pipe and the branch pipe was analysed. The main conclusions are as follows: (1) When the hot air enters the branch pipe, the air flow speed gradually increases and reaches its maximum value (approximately 266.7 m/s) at the tuyere outlet. (2) When the hot air enters the round pipe from the main pipe, there is momentum loss. When the hot air further reaches the opposite side of the junction between the round pipe and the main (Tuyere 1#), the speed of the hot air in the round pipe decreases to the minimum. (3) The maximum air flow average speed of the tuyere outlet is located at Tuyeres 20# and 21# at the junction of the main pipe and the round pipe, which can reach 264.5 m/s. The minimum air flow average velocity of the tuyere outlet is located at Tuyeres 19# and 22#, approximately 258.5 m/s.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical simulation of air flow and distribution in the blast system of blast furnace

Xu,

Qing,

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…[6][7][8][9][10] Therefore, the research on the circumferential uniformity of raceway had attracted much attention in recent years. [11][12][13][14][15][16][17][18] Bugaev et al found that the blast temperature difference among all the tuyeres was 150-250°C and the maximum adiabatic combustion temperature difference of raceway was corresponding to 508°C (1 772-2 280°C), when the…”

Section: Introductionmentioning

confidence: 99%