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Flow Property Analysis

bulk solids handling Journal

Article Teaser - bsh archiv teaser

Rapid Poiseuilie Flow of Granular Materials

We solve the problem of rapid Poiseuille flow of a granular material in a pipe. The material is viewed as an incompressible continuum with a stress given by a Reiner-Rivlin type constitutive equation. Two material parameters appear in the constitutive equation. The magnitude of one of these paramete…read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

Technical Article

Controlling Flow Patterns in Bins by Use of an Insert

A cone-in-cone bin insert, the BINSERT is presented as a means of controlling the flow pattern in existing bins and in new bin designs. The most significant applications can be seen in eliminating segregation problems and accomplishing in-bin blending. The advantages and possible future uses of this…read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

Technical Article

Tests on a Very Large Shear Cell

The design of storage bunkers requires data on the flow properties of the granular material being stored. Such data is usually gathered using a shear cell of which there are many designs. The Jenike Flow Factor Tester has become almost standard over recent years but the annular cell has the advantag…read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

On Rapid Flow of Bulk Solids

A survey is first given on the literature of flow theories of bulk solids as well as the present state of the art on constitutive equations for rapid flow of bulk solids and powders. Then a collision-slip process is defined as the main mechanism responsible in rapid flow theories and a set of pertin…read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

Technical Article

Non-Symmetrical Bin Flow Problems

The problems associated with non-symmetrical withdrawal of bulk solids from bins, hoppers or silos can be classified in two areas: flow problems with the stored materials, such as arching, ratholing, segregation, etc., and high localized loadings on the bin or silo walls, that may cause structural f…read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

Technical Article

Non-Symmetrical Bin Flow Problems

The problems associated with non-symmetrical withdrawal of bulk solids from bins, hoppers or silos can be classified in two areas: flow problems with the stored materials, such as arching, ratholing, segregation, etc., and high localized loadings on the bin or silo walls, that may cause structural f…read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

Research on the Flow Behaviour of Bulk Materials at the University Essen

Teaching and research in materials handling department at the University of Essen concentrate on continuous conveyor systems and, within this category, more particularly on the mechanical handling of bulk materials and unit loads. In addition, storage technology for bulk materials is studied. In con…read more

bulk solids handling Journal

Article Teaser - wp 553

Technical Article

Rotary Dump or Bottom Dump Wagons? A Review of Concepts for Higher Capacity Coal and Iron Ore Unit Trains

Bottom dump wagons and unloading of gondola cars with rotary car dumpers are the two main alternatives for unloading bulk materials from trains. In view of the trend toward higher capacities and reduced capital cost, a closer look at both solutions can help to save a lot of money. read more

bulk solids handling Journal

Article Teaser - wp 714

Silo Discharge Aids – Active Devices to solve Bulk Material Flow Problems

Although the knowledge is available to design silo with reliable flow, problems still occur quite frequently, for example, with old installations or if the properties of the material to be stored change. In such cases, a silo discharge aid can be a feasible solution. read more

bulk solids handling Journal

Article Teaser - wp 1227

Many sticky Returns – A Gold Mine seeks Solution to Carryback

It sometimes occurs that the conveying of bulk solid materials via belt conveyor poses a significant problem due to the conveyed material’s characteristics. The following article presents one such case, and the solutions found to solve the problem. read more

bulk solids handling Journal

Article Teaser - wp 1377

Ensuring Gypsum Quality – Controlling of the Gypsum Production at E.ON’s MPP3

.ON operate a modern coal- and biomass-fired power plant in the Maasvlakte port area in Rotterdam. The necessary desulphurisation is steadily controlled to produce a saleable gypsum product. Its product quaility is monitored via moisture measurement. read more

bulk solids handling Journal

Article Teaser - empty teaser article

Load Analysis of Trestle Leg Conveyor Support Structures Buried in Stockpiles

The paper presents a theory, combined with design equations, to compute the loads on structural elements, in particular those of trestle legs of tubular construction supporting load-out belt conveyors, where the trestle legs are substantially buried in gravity reclaim stockpiles. The stress conditio…read more

bulk solids handling Journal

Article Teaser - wp 1971

Technical Article

Bulk Materials Storage Design: Considerations for the Design of Materials Handling Storage Plants

Bulk material storage is either used for buffering between different handling/processing steps (e.g. ahead of the washing plant in mines) or as an “equalizer” in batch-wise working processes. Associated problems and counter measures are described hereafter. read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

Technical Article

Determination of the Mechanical Properties of Cohesive and Non-Cohesive Powdered Materials

Knowledge of the mechanical characteristics of materials contained in silos is fundamental for computation of the stresses exerted on silo walls or on construction members of various material handling installations. We know how to determine experimentally the value of the angle of natural slope of p…read more

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