Pneumatic Conveying of Solids

Klinzing, George E.; Marcus, R. D.; Rizk, F.; Leung, L. S.

doi:10.1007/978-94-015-8981-9

Cited by 77 publications

(41 citation statements)

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“…When using the blow tank feeder, two arrangements of air input were used to generate dense-phase low-velocity slug flow (LVSF) (Klinzing et al, 1997): a combination of top air and cone air and a combination of top air and conveying air. In the first case, two distinct lines of data resulted for 100% top air and 100% cone air, but it must also be noted that as the air mass flow rate was reduced, the solids mass flow rate also reduced.…”

Section: Resultsmentioning

confidence: 99%

“…There are a variety of feed arrangements for blow tanks: bottom-discharge, top-discharge; types that incorporate supplementary air to assist conveying; and small single-slug batch conveyors (Wypych, 2002). One major advantage of using a blow tank is that it serves as the feeder and is generally free of moving parts, which can aid in the reduction of product degradation (Woodcook & Mason, 1987;Klinzing et al, 1997) and maintenance requirements.…”

Section: Blow Tanksmentioning

confidence: 99%

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An Experimental Investigation into the Feed Rate Capacity of Rotary Valve and Blow Tank Feeders

Wypych

Hastie

Frew

et al. 2006

Particulate Science and Technology

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Industry widely uses rotary valves and blow tanks for the pneumatic conveying of products, each having their pros and cons depending on the specific application. This article shows the differing results obtained when low-velocity conveying a product through a common pipeline using both a drop-through rotary valve and a bottomdischarge blow tank feeder. A number of issues arise in the rotary valve system, the main one being rotary valve air leakage. A blow tank system, on the other hand, does not leak, as it is an enclosed system. The experimental results show dramatic differences in product throughput. Further exploration leads to a novel modification being made to the rotary valve system in an attempt to increase its capacity. The result of this modification shows a slight increase in output tonnage, but still significantly less than that obtained from the blow tank.

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Section: Resultsmentioning

confidence: 99%

Section: Blow Tanksmentioning

confidence: 99%

An Experimental Investigation into the Feed Rate Capacity of Rotary Valve and Blow Tank Feeders

Wypych

Hastie

Frew

et al. 2006

Particulate Science and Technology

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“…Up to now, many experimental and theoretical researches on densephase conveying have been carried out, and some important results were obtained [3][4][5][6][7][8][9][10][11][12][13][14][15][16]. When moisture content in pulverized coal increases, the conveying process becomes more complicated.…”

Section: Introductionmentioning

confidence: 99%

Effect of moisture content on dense-phase conveying of pulverized coal at high pressure

Chen

Liang

et al. 2011

Korean J. Chem. Eng.

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In dense-phase pneumatic conveying, the solid moisture content can significantly influence the conveying process, but there are very few studies in the open literature. In this study, the conveying experiments of two pulverized coals with various moisture contents were carried out at a 4 MPa high pressure and dense-phase pneumatic conveying facility. Results show that the whole conveying system can be stably and controllably operated under the condition that moisture content below ~8%. With the increase of moisture content up to ~8%, the mass flow rate of 280 µm pulverized coal increases at first and then decreases, while that of 55 µm pulverized coal decreases continuously. The method of solid friction factor correlation is used to investigate pressure drop of the horizontal pipe, and non-dimensional parameters--Fr number, moisture content M and solid loading ratio µ--are investigated. The pressure drop predictions by this correlation are in good agreement with the experimental data. The solid friction factor correlations indicate that the fine coal is more sensitive to M, and µ plays a more important role for the coarse coal.

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“…System for Analysis of the Flow-Structure Interactions (FSI) of Air-Lifted Bodies Introduction Pneumatic conveyance systems have been widely adopted for transportation of industrial materials (Klinzing et al, 1997) and are important in ocean mining application such as in risers. However, they experience problems of deterioration of material quality due to collisions of the materials with the pipe wall, and thus low transportation efficiency.…”

Section: Development Of An Adaptive Stereoscopic-pivmentioning

confidence: 99%

Development of an Adaptive Stereoscopic-Piv System for Analysis of the Flow-Structure Interactions (Fsi) of Air-Lifted Bodies

Doh

Hwang³

et al. 2009

Chemical Engineering Communications

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Pneumatic Conveying of Solids

Cited by 77 publications

References 0 publications

An Experimental Investigation into the Feed Rate Capacity of Rotary Valve and Blow Tank Feeders

An Experimental Investigation into the Feed Rate Capacity of Rotary Valve and Blow Tank Feeders

Effect of moisture content on dense-phase conveying of pulverized coal at high pressure

Development of an Adaptive Stereoscopic-Piv System for Analysis of the Flow-Structure Interactions (Fsi) of Air-Lifted Bodies

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