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Featured Companies

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WAMGROUP S.p.A.

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WAMGROUP S.p.A.

Italy

WAMGROUP is the global market leader in Screw Conveyors and amongst the most prominent players in th…

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XRIE Bulk Solids Handling

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XRIE Bulk Solids Handling

China

Nanjing Xiangrui Intelligent Equipment Technology Co., Ltd. was established in 2008 and has our own …

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VAC-U-MAX Co.

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VAC-U-MAX specializes in design and manufacture of pneumatic systems and support equipment for conve…

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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

Conveyor belt design innovation - Dunlop Ultra X

Conveyor belts are critical components and can be surprisingly complex. Their reliability and efficiency can literally make or break an operation. Finding a genuinely tough, good quality belt that can handle the demands placed on it is difficult enough. Finding such a belt that is also competitively…read more

White Paper

Wearing thin – Causes and Solutions for Conveyor Belts that have to be replaced prematurely due to Surface Wear

Conveyor operators all over the world waste millions very year because the belts they are using are wearing out much faster than they should be doing. The biggest single influence on the wear rate of a conveyor belt is its ability to resist the effects of abrasion. Here, conveyor belt specialist Les…read more

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Article Teaser - Moisttech Consistent teaser

White Paper

Moisture Measurement & Control yields immediate Results: Consistent Product Quality from Lab to Line

What is worse than wasted effort? Economical losses and decreased productivity. Moisture measurement is a crucial aspect in manufacturing from the initial process to the end-product stage. Product quality and consistency are forefront with MoistTech in the development of the IR3000 sensor to accurat…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

Technical Article

Sampling and Dividing of Bulk Materials

The quality control of a product during initial, intermediate and final stages of production is best achieved with accurate sampling and sample division. It is of great importance that the sample taken is representative of the whole. The result of the quality determination of the sample is often the…read more

bulk solids handling Journal

White Paper

Sampling Procedures for Bulk Solids

Judging the state of bulk materials from observations, necessitates the use of statistical sampling procedures. In this paper we employ a certain stochastic model to determine the portion of material which must be included in a sample. A numerical example is calculated in detail. 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

Case Study

Sampling at Maasvlakte Power Plant in Rotterdam

In the commercial operation of coal-fired power stations it is essential that a constant supply of coal with known characteristics be available. Thus sampling of the various grades of coal used to make up the blending beds and also the final, blended feed is of utmost importance. The author describe…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

Sampling of Coal in the USA

Over the years the use of mechanical sampling systems has grown rapidly in the USA. With about 1 billion (109) tons of coal being mined, the need for accurate sampling systems is proving itself throughout the industry. The complexity of coal sampling, however, has not made it easy to design and…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

Technical Article

A Comparison of Calculated and Measured Indentation Losses in Rubber Belt Covers

Energy loss due to indentation rolling resistance is a major factor in belt conveyor design. The determination of the indentation rolling resistance of a conveyor belt over the idler system depends on the properties of the rubber compound of the backing, the method of calculation of the resistance v…read more

bulk solids handling Journal

Technical Article

Seamless Integration – Automated Materials Handling for Coal-fired Power Plants

While in recent years the main focus was on optimisation of single parts like mine planning or advanced automation solutions now a seamless integration of all subsystems and an overall optimisation from the mine to the power plant is requested. read more

bulk solids handling Journal

Technical Article

Advances in Explosion Protection Technology – Improvements and new Options offered by advanced Protection Solutions

Explosion protection techniques have been undergoing several refinements as a result of the implementation of legislative requirements and innovative product development. The extended use of explosion protection standards and demands from industry resulted in additional products with improved perfor…read more

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