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Upcoming Events

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8. - 15. Oct. 2025

K – The world of Plastics & Rubber

Trade Fair – Düsseldorf, Germany

New Forum Topics

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Where to find high-quality and reliable manufacturer of PVC conveyor belts?

Blockage

Teus Tuinenburg

Problem in vibrating screwn

HORIZONTAL BELT CASSETTE

Impact from dumping to hopper

Calizamar uses Crushing Technology from BHS-Sonthofen to produce Sand

The Dominican building materials manufacturer Calizamar, S.A. relies on crushing technology from BHS-Sonthofen. The company has commissioned the BHS rotor impact mill of type RPM 1513 to produce high-quality crushed sand. With this machine, there are now three crushing plants from BHS-Sonthofen in o…read more

White Paper

How to select a Continuous Level Sensor

Using a continuous level sensor to monitor the material level in your storage vessels can help your operation maintain efficiency – preventing costly process interruptions and keeping you up-to-date on your inventory level. This whitepaper is intended to help operations choose a continuous level s…read more

Case Study

Baioni: Crushing Plants at Service of Infrastructure Project in Cuba

Just 2017, a new stationary crushing and screening plant with a dry capacity of 20,000 m3 per month was commissioned in the Cuban province of Holguin near Bariay. In recent years, the Cuban government has invested several million euros in the purchase of a number of different crushing plants from Ba…read more

bulk solids handling Journal

Research Paper

Frequency Distribution of Voids in Monolayers of Randomly Packed Equal Spheres

Single layers of randomly packed equal spheres of different materials encapsulated between two glass plates were created. These layers were then subjected to an optical scanning procedure that could continuously scan the "Voronoi Cells ' generated within the assembly. The whole experimental set up w…read more

bulk solids handling Journal

Research Paper

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

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

Research Paper

Experimental Investigation of Some Important Soy Shreds Characteristics

The world-wide increase in the production and trade in bulk solids has led to the construction of increasingly large silos for the storage of an increasing number of bulk solids, of which the characteristics are sometimes not well known. Therefore, it is not surprising that some …read more

bulk solids handling Journal

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

Technical Article

Determination of Sample Size for Estimation of the Mean Grade

Particular guidelines for the accurate assessment of the requisite sample size for the mean grade of a quantity or volume of mineralized bulk material are presented, and an illustrative numerical example is given. read more

bulk solids handling Journal

Technical Article

Introducing Geostatistics to the China Clay Industry

E.C.C. Ltd. extracts clay matrix from primary kaolin sources in the South West of England, the properties of which are inherently variable. Quality control procedures during the stages of processing ensure that the final products meet market requirements. Bore hole samples are used to assess the geo…read more

bulk solids handling Journal

Research Paper

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

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

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

Research Paper

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

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

White Paper

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

Research Paper

Transfer Chutes: Predicting Dust Emissions by Multiphase CFD and Coupled DEM-CFD Simulations

Dust emission is one of the main problems in the operation of transfer chutes. The design of the transfer chute heavily influences any potential dust generation. Although this influence is well known, much more attention is given to active dust suppression via water spray systems, the exhaustion of …read more

bulk solids handling Journal

Research Paper

Determination of the Bulk Flexure Resistance via coupled FEM-DEM Simulation

The bulk material on a belt conveyor deforms itself due to the run through idler stations. The deformation results in energy losses which are summarised in the bulk solid flexure resistance. The right understanding of the interaction between bulk material and idler stations is important for the pred…read more

bulk solids handling Journal

White Paper

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

White Paper

Maximising Coal Recovery in Open-Pit Mining – Reducing Coal-Fines-Production improves Cost Situation for Miners

High levels of coal fines in the ROM material result in higher costs for washing, lower recovery, reduced workplace safety and negative impacts on the downstream processes. Knowing where these coal fines come from and optimising the procedures along the process chain can yield significant savings. read more

bulk solids handling Journal

Case Study

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

Research Paper

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

White Paper

Improve your Size Reduction: Expect More from your Horizontal Shaft Impactor

Horizontal Shaft Impactors (HSI) were first implemented in the midst of the last century. Since then they have taken over the size reduction process in many industries. Here’s why, and how. read more

bulk solids handling Journal

Research Paper

Load Stability of Bulk Cargoes during Ship Transport

The safe ocean transport of bulk cargoes on large bulk ships is vitally dependent on the stability of the cargo under the influence of the rolling, pitching and yawing motion of the ship and the transmission of vibration from the ship’s engine and propulsion machinery as well as wave motion induce…read more

bulk solids handling Journal

Research Paper

Stochastic Models for Gravity Flow: Numerical Considerations

aterial flow analysis is commonly required in mining methods were the rock has to move from its initial position to the extraction point, commonly known as gravity flow. This happens in mining methods such as sublevel caving, panel caving, block caving. During this process the ore is diluted with wa…read more

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