Experiment and numerical simulation of two-phase flow in oxygen enriched side-blown furnace

Liu, Yanting; Yang, Tianzu; Chen, Zhuo; Zhu, Zhenyu; Zhang, Ling; Huang, Qing

doi:10.1016/s1003-6326(19)65196-4

Cited by 29 publications

(5 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the process of gas-liquid two-phase side-blown, the dimensionless distance is 10-20 when the velocity basically disappears (Zhu et al, 2022). In the simulation results, when the dimensionless distance is 12.8, the forward velocity on the nozzle shaft basically disappears, which is consistent with the experimental conclusion.…”

Section: Model Verificationsupporting

confidence: 85%

Analysis on phase distribution and flow field morphology in double side blown gas-liquid mixture flows with high temperature and high density melt

Wang

et al. 2023

Front. Energy Res.

View full text Add to dashboard Cite

In view of the gas-liquid two-phase flow process in the oxygen-enriched side-blown molten pool, the phase distribution and manifold evolution in the side-blown furnace under different working conditions are studied. Based on the hydrodynamics characteristics in the side-blown furnace, a multiphase interface mechanism model of copper oxygen-enriched side-blown bath melting was established. The results show that the existence of slag baffle makes the velocity distribution range of melting mixing zone wider, the mixing range of melt wider, the mixing effect better, and the role of melting zone strengthened. The average speed of case MY in the melting zone is the highest, nearly 5.2% higher than that of case EY, and 16.7% higher than that of case EN. Compared with the average turbulent kinetic energy in the melting zone, case MY has a significant advantage of 2.635 m2/s2, which is increased by 47%, 34%, and 14% respectively compared with case EN, case EY, and case MN.

show abstract

Section: Model Verificationsupporting

confidence: 85%

Analysis on phase distribution and flow field morphology in double side blown gas-liquid mixture flows with high temperature and high density melt

Wang

et al. 2023

Front. Energy Res.

View full text Add to dashboard Cite

show abstract

“…In the simulation of particle impact of particles on the internal flow field of the melt bath, the particles that undergo a chemical reaction with the internal melt bath after entering the flow field are ignored. Typically, an oxygen-rich side-blowing furnace consists of 13 pairs of lances, 21 in order to reduce calculation time and ensure the accuracy of the calculation, a single pair of lance simulation calculations, the front and rear walls in the Z -axis direction for the periodic boundary conditions, 22 the established side-blowing furnace geometry and model dimensions are shown in Figure 2.…”

Section: Model Parameters and Assumptionsmentioning

confidence: 99%

Numerical simulation of enhanced stirring by gas-particle blowing in side-blown furnace based on CFD-DEM method

Wang,

et al. 2024

Ironmaking & Steelmaking: Processes, Products and Applicati

View full text Add to dashboard Cite

Oxygen-enriched side-blow stirring technology is the most critical enhanced stirring technology in molten bath smelting. With the current depletion of raw material grades, elevated impurity element content and increasingly complex sources, there is a higher demand for smelting process parameters, technical specifications and energy saving and emission reduction measures. This article uses computational fluid dynamics-discrete element method (CFD-DEM) method to develop a three-dimensional mathematical model to simulate the impact of gas–solid hybrid blowing in the side-blown furnace melt bath strengthening drive and conventional oxygen-enriched blowing effect comparison, analysis of its strengthening mechanism to provide a theoretical foundation for industrial production practices. The results show that GPB increases the average velocity of the slag layer by 23.22% compared to GB at the time of flow stabilisation in the furnace, GPB stirring enhances the momentum transfer in the melt bath by 18.52%, and the complex turbulence increases the gas content by a factor of 10.4% by extending the gas motion path. Analysis from the perspective of reaction kinetics aims to improve the internal flow of the melt bath, increasing the number of molecular and elemental collisions within the bath. This enhancement facilitates the reaction between the gas–solid phase and the slag layer, ultimately improving the melting efficiency.

show abstract

“…After referring to the design manual (China Academy of Agricultural Mechanization Sciences, 2007), the rotation speed of disk was set to be 540 r/min and 1200 r/min for the toothed shaft. As provided in Table 2 and 3, the intrinsic parameters and the contact parameters of the materials involved in the spreading model had been set according to the relevant references (Li et al, 2022;Liu et al, 2022;Wu, 2016) and combining simulation practice. Particle factory was set up at the inlet of the crushing unit to simulate the conveying of the granular organic fertilizer via the conveying unit.…”

Section: Construction Of Organic Fertilizer Spreading Modelmentioning

confidence: 99%

Improvement Design and Simulation Analysis on Centrifugal Disc Organic Fertilizer Spreader

XU,

CUI,

ZHENG

2023

INMATEH

View full text Add to dashboard Cite

Aiming at the poor efficiency in crushing a handful of caking organic fertilizers spraying from the traditional disc spreader, an improved disc spreader equipped with spike-tooth crushing unit was designed with the introduction of its structural composition and working principle. Also simulation experiments were carried out based on the discrete element method according to the solutions made before and after the structural improvement. Firstly, a granular organic fertilizer model was established based on the EDEM and a caking organic fertilizer bonding model was built based on the HMB (Hertz-Mindlin with bonding) contact model. Then two organic fertilizer spreading models corresponding to the solutions were respectively established, based on which simulation experiments were repeated three times on the spreading process. The analysis on the particle velocity vector diagram revealed the interaction relationship between organic fertilizers with the toothed shaft, external wall and disk, verifying the crushing mechanism of crushing unit. By calculating the total number of the bonds generated and broken in the spreading process in both of the spreading models, the average broken rate of bonds in the spreading process was separately 58.87% and 98.05% based on each solution, revealing that the improved solution outperformed the traditional solution in terms of the efficiency in crushing the caking organic fertilizers. This research will be a reference in designing the critical components or improving the overall performance of disc spreader.

show abstract

Experiment and numerical simulation of two-phase flow in oxygen enriched side-blown furnace

Cited by 29 publications

References 10 publications

Analysis on phase distribution and flow field morphology in double side blown gas-liquid mixture flows with high temperature and high density melt

Analysis on phase distribution and flow field morphology in double side blown gas-liquid mixture flows with high temperature and high density melt

Numerical simulation of enhanced stirring by gas-particle blowing in side-blown furnace based on CFD-DEM method

Improvement Design and Simulation Analysis on Centrifugal Disc Organic Fertilizer Spreader

Contact Info

Product

Resources

About