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Experimental study on particle flow characteristics of three-dimensional moving bed

Qiu, Lin ; Sang, Dawei ; Feng, Yanhui ; Zhang, Xinxin

Powder technology, 2020-09, Vol.374, p.399-408 [Periódico revisado por pares]

Lausanne: Elsevier B.V

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Título:
Experimental study on particle flow characteristics of three-dimensional moving bed
Autor: Qiu, Lin ; Sang, Dawei ; Feng, Yanhui ; Zhang, Xinxin
Assuntos: Blast furnace slag ; Blast furnace slags ; Flow characteristics ; Flow characteristics of blast furnace slag ; Flow pattern ; Flow rates ; Heat exchange ; Heat exchangers ; Heat transfer ; Mass flow rate ; Moving bed ; Moving beds ; Optimization ; Particle size distribution ; Quantitative formula of the mass flow rate ; Slag ; Three dimensional flow ; Velocity ; Velocity distribution
É parte de: Powder technology, 2020-09, Vol.374, p.399-408
Descrição: The disorderly treatment of blast furnace slag has caused huge energy waste. To tackle this issue, moving bed are continuously attracting worldwide attention. In this paper, the in-depth analysis of the flow characteristics of blast furnace slag-like particles in a solid-solid heat transfer moving bed is carried out. The particle flow pattern and velocity in the moving bed with different tube numbers, configurations and spacings are vividly recorded. Significantly, a quantitative formula of the mass flow rate including the opening width, the bed layer height, the tube number and spacing, the particle size and distribution was built for this solid-solid heat transfer model. Furthermore, it is found that the longitudinal velocity distribution of the particles renders obvious peaks and valleys along the width direction. This study provides theoretical guidance for the optimization of the structure and operational parameters of the solid-solid heat-exchange moving bed. [Display omitted] •Particle flow characteristics in solid-solid heat transfer moving bed.•Analysis of influencing factors of flow pattern, flow velocity and MFR.•An empirical formula for the MFR of particles is proposed for moving bed.
Editor: Lausanne: Elsevier B.V
Idioma: Inglês

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Experimental study on particle flow characteristics of three-dimensional moving bed

Qiu, Lin ; Sang, Dawei ; Feng, Yanhui ; Zhang, Xinxin

Lausanne: Elsevier B.V

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