Effect of coal particle size distribution, volume fraction and rank on the rheology of coal–water slurries

Boylu, Feridun; Dinçer, Hatice; Atesok, G.

doi:10.1016/s0378-3820(03)00198-x

Cited by 199 publications

(92 citation statements)

References 5 publications

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“…It is known that the violation of stability, sedimentation of particles and the lamination of the dispersed system are due to the differences in specific gravity of the dispersed phase and a liquid dispersion medium [6]. Therefore for the preparation of coal-water suspensions from a theoretical point of view is advisable to use the fractions with the same (proportional) size of coal particles [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

The influence of surfactants to the stability of coal water suspension

Aidarova¹,

Bekturganova²,

Kerimkulova³

et al. 2014

Period. Polytech. Chem. Eng.

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Section: Introductionmentioning

confidence: 99%

The influence of surfactants to the stability of coal water suspension

Aidarova¹,

Bekturganova²,

Kerimkulova³

et al. 2014

Period. Polytech. Chem. Eng.

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“…It is well known that the volume concentration of solids in a two-phase flow (i.e. liquid and solid) has a positive contribution to the suspension viscosity [29,30]. It is expected that this relationship will also apply to a three-phase flow such as a flotation froth.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Determining the significance of flotation variables on froth rheology using a central composite rotatable design

Farrokhpay

Runge

et al. 2016

Powder Technology

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Determining the significance of flotation variables on froth rheology using a central composite rotatable design, Powder Technology (2015Technology ( ), doi: 10.1016Technology ( /j.powtec.2015 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT AbstractFroth performance in a flotation cell is expected to be affected by froth rheology due to change in the froth transportation rate. However, very little study has been performed to investigate how froth rheology responds to flotation variables. This paper presents an experimental program performed to study the effects of flotation variables (i.e. feed grade, feed particle size, froth height, superficial gas velocity and impeller speed) on the froth rheology. These conditions were varied using a central composite rotatable design (CCRD).

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“…One of the most important parameters of slurry fuels is their viscosity which determines fluidity [Boylu et al 2004, Singh et al 2016. Viscosity investigations of slurries prepared during wet milling were carried out.…”

Section: Coal Water Slurry (Cws) Evaluationmentioning

confidence: 99%

Coal Micronization Studies in Vibrating Mill in Terms of Coal Water Slurry (Cws) Fuel Preparation

2017

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The paper presents the results of coal milling tests in the aspect of slurry fuel preparation. The tests were carried out with the use of vibrating mill with a working chamber of 47.5 dm 3 . The influence of milling time, amount and composition of grinding aids on the degree of fineness and particle size distribution have been investigated. It was found that the efficiency of the grinding process (in this type of milling device) depends primarily on the milling time and the share of grinding aids and -to a lesser extent -on their polydispersity. The study allows to conclude that the grinding time, composition and the share of used grinding aids enable to control the final grain size of coal, which has an impact on apparent viscosity of coal water slurry.

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Effect of coal particle size distribution, volume fraction and rank on the rheology of coal–water slurries

Cited by 199 publications

References 5 publications

The influence of surfactants to the stability of coal water suspension

The influence of surfactants to the stability of coal water suspension

Determining the significance of flotation variables on froth rheology using a central composite rotatable design

Coal Micronization Studies in Vibrating Mill in Terms of Coal Water Slurry (Cws) Fuel Preparation

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