Improving advantages and reducing risks in increasing cyclone height via an apex cone to grasp vortex end

Yang, Jingxuan; Han, Shaoxing; Hao, Xiaogang; Guan, Guoqing

doi:10.1016/j.cjche.2022.04.014

Cited by 5 publications

(1 citation statement)

References 24 publications

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“…Li et al (2022) proved by simulation that improving the cylinder roof structure reduces the top shortcircuit flow and makes a more efficient vortex of the cyclone separator. study made by Zhang et al (2022b) proved that when an apex cone is installed at the dust outlet, the backmixing of particles will be decreased but the separation efficiency will be enhanced.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Vortex Breaker for A Dynamic Separator using Computational Fluid Dynamics

Guizani¹,

Mhiri²,

Bournot

2023

JAFM

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The separation efficiency and pressure drop of the dynamic separator of cement particles can be affected by many factors, like structural type, geometric parameters, and operating characteristics. In this paper, CFD modeling is applied to investigate the fluid flow behavior and the efficiency of the industrial dynamic separator with different heights of the inner cone called the vortex breaker. Simulations are based on the RSM and the DPM models. A CFD comparison of the original design and new designs has been performed. The simulation results showed that the fluid flow inside the industrial air separator is greatly dependent on the height of the vortex breaker. Interesting phenomena were observed by the numerical simulations and the results revealed that an increase in the height of the vortex breaker up to three-quarters of the magnitude of the fine powder outlet duct can improve the performances of particle separation not only by reducing 29% the cut size, and by 40% the bypassing of fine particles but also by increasing 30% the separation sharpness while keeping the pressure drop substantially unchanged.

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Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Vortex Breaker for A Dynamic Separator using Computational Fluid Dynamics

Guizani¹,

Mhiri²,

Bournot

2023

JAFM

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Enhancing the efficiency of two‐stage cyclones without increasing pressure drop by optimizing inlet and outlet dimensions

He,

Zhu,

Niu

et al. 2024

Can J Chem Eng

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Efforts to enhance cyclone separators aim to minimize gas energy consumption while improving separation efficiency. This study attempts to achieve this goal for cyclones arranged in series using straightforward methods. Experimental and numerical simulation analyses were performed to study the effect of matching inlet and outlet diameters on the performance of a two‐stage tandem cyclone separator. The results show that the matching method, in which the inlet gas velocities of both stages are higher than the outlet gas velocity, has a better separation efficiency. The efficiency and pressure drop models of the two‐stage cyclones in series were constructed using the response surface methodology (RSM) to obtain the optimal combination of inlet size and exhaust pipe diameter. Experimental tests showed that the accuracy of this model was reasonable. At different permitted pressure drops, the optimized structure revealed that: (1) The inlet area should be smaller than the outlet area for each cyclone stage. (2) The secondary inlet size (KA) should be as large as possible. (3) dr decreases while KA increases in each step.

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3D-printed elliptical cyclone separator with additional self-excited force field for enhancing the gas-solid separation

Sun,

Yang,

Zhang

et al. 2024

Advanced Powder Technology

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Improving advantages and reducing risks in increasing cyclone height via an apex cone to grasp vortex end

Cited by 5 publications

References 24 publications

Numerical Investigation of the Vortex Breaker for A Dynamic Separator using Computational Fluid Dynamics

Numerical Investigation of the Vortex Breaker for A Dynamic Separator using Computational Fluid Dynamics

Enhancing the efficiency of two‐stage cyclones without increasing pressure drop by optimizing inlet and outlet dimensions

3D-printed elliptical cyclone separator with additional self-excited force field for enhancing the gas-solid separation

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