Numerical and experimental investigation of the fluid dynamics in a Teniente type copper converter

Valencia, Álvaro; Rosales, Mario; Paredes, R.; León, Carlos Ponce de; Moyano, A.

doi:10.1016/j.icheatmasstransfer.2005.12.009

Cited by 24 publications

(15 citation statements)

References 6 publications

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“…When running the process of converter slag reduction with application of three nozzles operating as submerged flame burners, and when each of them is supplied with 24 [Nm 3 /h] of natural gas with air, the reached temperature of the slag was in the range of 1176-1222°C (1212°C on average). In the analysis of the influence of modification of the gas supply method by changing the number of nozzles it was found out that the highest average slag temperature of 1227°C with a standard deviation of 4.99 was reached in the furnace equipped with four nozzles, while the lowest -1197°C with a standard deviation of 8.25 when the furnace was equipped with two nozzles.…”

Section: Discussionmentioning

confidence: 99%

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Numerical investigation of heat exchange in rotary furnace

Kolczyk

Miczkowski

Czernecki

2017

Archives of Metallurgy and Materials

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Process of heat exchange in a rotary furnace during converter slag reduction was modelled.Temperature distribution in the furnace and temperature of the charge (slag) only were examined. Influence of modification of the process gas supply method by changing the number of nozzles on the course of the reduction process was analyzed. It has been found out that application of a nozzle as a submerged flame burner provides possibilities to reach higher charge temperature. Application of more nozzles in the process of converter slag reduction can increase temperature of reduced slag and provide better uniformity of charge heating.

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Section: Discussionmentioning

confidence: 99%

“…In the literature there are many studies of modeling of flow dynamics in converters. Valencia [3,4] studied movement of a slag layer and bath oscillation. Almaraz [5] analyzed influence of bath height and depth of nozzle immersion.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of heat exchange in rotary furnace

Kolczyk

Miczkowski

Czernecki

2017

Archives of Metallurgy and Materials

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“…The dynamics of flow in the Teniente converter was analyzed with physical model and numerical modeling. Identification of flow ranges was made by changing the Froude number, and the frequency of bath movement as a function of its height and depth of tuyere immersion was presented [1,2]. In other study [3], process of fluid flow and beginning of turbulences in the converted copper was physically and numerically modeled for different velocities of the gas flow.…”

Section: Introductionmentioning

confidence: 99%

Numerical Modeling of Copper Reduction in Fire Refining Process

Kolczyk¹,

Miczkowski²,

Czernecki³

2016

Archives of Metallurgy and Materials

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Copper reduction represents one of the steps in the process of fire refining of blister copper. Process of copper reduction with natural gas as performed in the anode furnace was modeled. Numerical analysis was conducted using the IPSA (Inter- Phase-Slip Algorithm) module of PHOENICS package and standard turbulent model k - ε. The model takes into account the liquid phase - slag and phase of natural gas which is supplied through the tuyere from the bottom of the charge. Calculations were made for two different diameters of tuyeres for supply of reducer. Based on the calculations and analysis, it was found out that the gas flow which causes strong movement in the bath guarantees homogeneous composition of the liquid copper in each process stage. Application of a tuyere with a larger diameter results in a greater intensity of the reduction process and better use of the reducer.

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“…The flow is characterized with an unsteady jet, which moves into back wall direction and in some instants collapses. Recently, we have studied the fluid dynamics in a Teniente type copper converter including white metal and slag liquid phases and gas phase through air injection from 50 submerged tuyeres [15]. Experimental observation of the phenomena was carried out in a 1 : 5 scaled water vessel, and mean frequencies and amplitudes of bath surface oscillation were determined in four characteristic points of bath surface.…”

Section: Introductionmentioning

confidence: 99%

Fluid Dynamics in a Teniente Type Copper Converter Model with One and Two Tuyeres

Valencia

Rosales-Vera²,

Orellana

2013

Advances in Mechanical Engineering

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We have numerically studied the fluid dynamics in a model of Teniente type copper converter with combined lateral and bottom gas injection. The three-dimensional simulation of the two-phase system was carried out using the volume of fluid (VOF) and the standard k-turbulence models implemented in the commercial solver Fluent. The numerical investigation was carried out in a 1 : 5 scaled water slice model for three different gas injection Froude numbers of the bottom tuyere (0, 36, and 64). The submerged gas injection produces a turbulent jet and provides efficient mixing of the gas and liquid phases. The gas injection through a bottom tuyere increases the fluid mixing, and for Froude number of Fr = 64 interactions between the two gas jets were found.

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Numerical and experimental investigation of the fluid dynamics in a Teniente type copper converter

Cited by 24 publications

References 6 publications

Numerical investigation of heat exchange in rotary furnace

Numerical investigation of heat exchange in rotary furnace

Numerical Modeling of Copper Reduction in Fire Refining Process

Fluid Dynamics in a Teniente Type Copper Converter Model with One and Two Tuyeres

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