Category Archives: bulk solids handling Archive

Breakage of Powders in Lean-Phase Pneumatic Conveying: The Influence of Material Type

By B.A. Kotzur, R.J. Berry, M.S.A. Bradley, and R.J. Farnish – Lean-phase pneumatic conveying is utilised across a wide range of industrial processes. This conveying method offers a number of advantages such as process hygiene and routing flexibility, however, due to high impact velocities in the pipeline, particle attrition remains a considerable issue. This work looks at how different material types respond to equivalent impact conditions, namely amorphous (Carbolux) and crystalline (cooking salt) morphologies, and translates this to expected behaviour during conveying. A bespoke bench-scale centrifugal attrition tester was used to test an individual particle size fraction of each material across two impact angles and five impact velocities. It was found that the percentage mass retained in the size fraction reduced linearly with velocity for the amorphous material, and polymerically for the crystalline material. Continue reading Breakage of Powders in Lean-Phase Pneumatic Conveying: The Influence of Material Type

More efficient Fertilizer Production: Reduced Product Penetration increases Productivity

Phosphorus is one of the most important macronutrients in fertilizers. To cater for the worlds growing demand for fertilizers, producers all over the world expand their production capacity and modernise their existing processing facilities to enhance the effectiveness of their processes, e.g. the dehumidification of the production waste. Continue reading More efficient Fertilizer Production: Reduced Product Penetration increases Productivity

More economic Open Pit Mining: In-pit Crushing and Conveying System in Phosphate Mining

By U. Mentges Phosphate is an indispensable material for growth and thriving of plants, animals and men. As phosphate ore is only available in limited supplies in very few regions of the world it is of paramount importance to make extraction of the material as sustainable as possible. Continue reading More economic Open Pit Mining: In-pit Crushing and Conveying System in Phosphate Mining

No Big-Bang in Wood Processing: Innovative Explosion Protection for Wood-processing Plants

By R. Post Since the re-discovery of regenerative energy sources wood processing has seen a considerable growth due to the demand of easy to handle fuel. In view of the ignitability and explosibility of the developing wood dust provisions must be taken to minimize/prevent the impacts of dust explosions. Continue reading No Big-Bang in Wood Processing: Innovative Explosion Protection for Wood-processing Plants

Specifying a Bulk Bag Filler: The six most important Parameters to consider

By D. Boger – As the number of options for bulk bag filling equipment options increases, so should the ability of the specifier to evaluate stand-alone equipment and integrated systems against current and anticipated needs. Continue reading Specifying a Bulk Bag Filler: The six most important Parameters to consider

Limestone in a Silo: OK – but out? Resolving Material Accumulation in Cement Plant Limestone Silo

By C. Schmelzer – Cement production involves a good deal of bulk material handling. As the base materials, and especially their handling behaviour, are prone to humidity, special action must be taken to keep these materials moving in the course of the production process. Continue reading Limestone in a Silo: OK – but out? Resolving Material Accumulation in Cement Plant Limestone Silo

High Angle Conveying: The Vital (missing) Link to IPCC Systems – 2017

By J.A. Dos Santos  Installations and recent studies have demonstrated the technical and economical advantages of high angle conveying for optimization of any IPCC system, yet that industry continues to struggle with the use of conventional solutions to achieve the high angle function. Continue reading High Angle Conveying: The Vital (missing) Link to IPCC Systems – 2017

Belt Replacement at a Long Distance Pipe Conveyor: Belt Design, Installation and Power Measurement

By A. Minkin, A. Jungk and T. Hontscha When the Arch Western Coal Skyline Mine decided to replace the old belt of its long distance BC-8 pipe conveyor, a new belt had to be designed to be suitable to the existing routing. In addition, a special installation procedure had to be developed to minimise downtime during the belt installation and commissioning. Continue reading Belt Replacement at a Long Distance Pipe Conveyor: Belt Design, Installation and Power Measurement

Entirely Dust-free: Hybridysing Pneumatic and Mechanical Conveying for Bulk Material Handling

For the enlosed conveying of powdery or granular products may happen in pneumatic as well as in mechanical systems. An interesting alternative are aero-mechanical systems, which allow very gentle conveying even of friable products. Continue reading Entirely Dust-free: Hybridysing Pneumatic and Mechanical Conveying for Bulk Material Handling

‘Lean’ Sample Preparation: Saving Money with your own Sample Preparation

By G. Van Laarhoven With a new and efficient system for sample preparation in the steel industry less material is needed to be sent out for external analysis providing a mayor saving in material costs. The mechanised preparation process results in more samples enabling a quality improvement in the actual production process. Continue reading ‘Lean’ Sample Preparation: Saving Money with your own Sample Preparation