Experimental and Numerical Investigations of a Dual‐Stage Cyclone Separator

Zhang, Ting; Guo, Kai; Liu, Chunjiang; Li, Yue; Tao, Min; Shen, Chong

doi:10.1002/ceat.201700052

Cited by 18 publications

(2 citation statements)

References 27 publications

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“…The multiphase flow in the RH reactor is simulated by the DPM–VOF coupled model, which is a combination of DPM , with the VOF model, − and this coupled model has been widely applied in many fields, such as chemical engineering, , metallurgical engineering, , petroleum engineering, etc. In this work, three continuous phases (molten steel, molten slag, and top gas) and one discrete phase (argon bubbles dispersed in molten steel) are involved in the mathematical model, as shown in Figure .…”

Section: Mathematical Modelmentioning

confidence: 99%

Modeling Fluid Flow and Carbon Removal in the Ruhrstahl–Heraeus Reactor: Considering the Pumping Process

Chen

2019

Ind. Eng. Chem. Res.

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The Ruhrstahl–Heraeus treatment is mainly used for the removal of dissolved C from molten steel for the production of ultralow-carbon steel. In this work, a three-dimensional mathematical model, the coupling of discrete phase model–volume of fluid model and the species transport model, is developed to simulate the fluid flow and carbon removal in a Ruhrstahl–Heraeus reactor. The influence of the vacuum pumping process on the vacuum chamber pressure, equilibrium carbon content, fluid flow, and hence the carbon removal is considered for the first time. The decarburization occurs at the free surface and the inner of molten steel as well as the Ar bubble surface. Simulation results show good agreement with the experimental data for the evolution of dissolved C in molten steel. Then, the contribution of each reaction zone to the total carbon removal is evaluated, and the distribution of the carbon content is investigated.

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Section: Mathematical Modelmentioning

confidence: 99%

Modeling Fluid Flow and Carbon Removal in the Ruhrstahl–Heraeus Reactor: Considering the Pumping Process

Chen

2019

Ind. Eng. Chem. Res.

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“…Zhang et al. 11 have focused on new multi-cyclone dual-stage separators (DSCS) to boost flow distribution. DSCS gives greater collection efficiency for a given inlet speed than other selected cyclone separators.…”

Section: Introductionmentioning

confidence: 99%

Effects of helical fins with semi-circular in cross-section on the performance characteristics of novel finned-cyclone separators

Dasar

Patil

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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Separation of particles (solid) from hot gases were carried out with the help of cyclone separators in most of the power generation industries (fluidized bed boilers) and process industries. Present research focuses on improving the performances of such devices by modifying the geometry. Conventional 2D2D Lapple type cyclone separator geometry was modified by attaching semi-circular cross-section helical fins along the height of barrel wall to make it as finned-cyclone separators. Semi-circular helical fins attached on the barrel wall varies (six-sets) with size (5 mm, 7.5 mm, and 10 mm) and pitch (30 mm and 50 mm). 3D computational fluid dynamics simulations were carried out using ANSYS 15.0 tool and validation were performed with experimental data available in the literature for conventional 2D2D Lapple type cyclone separator before proceeding towards simulations of semi-circular finned-cyclone separators. Improved performance was noticed from all selected six cyclone separators with semi-circular fins (cswf) when compared to conventional cyclone separators while studying the fluid mechanics characteristics, which directly influences on collection-efficiency of cyclone separators. Among selected cyclone separators, the cswf with size of fin 7.5 mm and fin-pitch 50 mm was noted to be performing improved collection efficiency for the particles size <3 µm. Around 5%–11% improved collection efficiency when compared to conventional cyclone separators were observed in the study by fixing the semi-circular fins along the height of barrel wall without disturbing the main role of cyclone separator, which is separating the very fine particles, which would otherwise causes pollution.

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Performance improvement of a cyclone separator using different shapes of vortex finder under high-temperature operating condition

Jafarnezhad

Salarian

Kheradmand

et al. 2021

J Braz. Soc. Mech. Sci. Eng.

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Experimental and Numerical Investigations of a Dual‐Stage Cyclone Separator

Cited by 18 publications

References 27 publications

Modeling Fluid Flow and Carbon Removal in the Ruhrstahl–Heraeus Reactor: Considering the Pumping Process

Modeling Fluid Flow and Carbon Removal in the Ruhrstahl–Heraeus Reactor: Considering the Pumping Process

Effects of helical fins with semi-circular in cross-section on the performance characteristics of novel finned-cyclone separators

Performance improvement of a cyclone separator using different shapes of vortex finder under high-temperature operating condition

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