Category Archives: bulk solids handling Archive

Pipe Conveying the next Stage: A new Technology for Steep Incline High Capacity Open Pit Conveying

By A. Minkin, P. Börsting, N. Becker A new conveyor design is set to help reduce conventional heavy-duty truck traffic and the resulting high operating costs in open pit mines. This article (ed. note: publ. 2016) presents the design and the initial findings of the feasibility study on the Chevron-Megapipe conveyor for a 350 m-deep open pit mine and a mass flow of 5000 t/h. Continue reading Pipe Conveying the next Stage: A new Technology for Steep Incline High Capacity Open Pit Conveying

Latest Developments in Dust Control Technology

By P.W. Wypych, V. Ronda This paper (publ. 2016) initially summarises the various existing options available for dust control and some of their features, advantages and disadvantages. It then describes some of the new technologies that are being researched, developed and employed to minimise dust emissions by addressing the root cause/s of the problem, such as dustability or dustiness and the dust generation mechanisms. Some recent research results and case studies are presented to demonstrate some interesting findings obtained from this work. With improved understanding and modelling of dust generation mechanisms and also bulk material dustiness, it is possible to achieve a step-change improvement in the design, troubleshooting and application of more efficient dust control technologies. Continue reading Latest Developments in Dust Control Technology

Utilizing Regrind: Processing of Residues from Plastic Production

To enable recyclates to be used 1:1 as a substitute for virgin material there are two crucial factors. On the one hand, sufficient raw recycling material has to be available and, on the other hand, it has to be possible to process this material economically to make recycled pellets with customised property profiles. Continue reading Utilizing Regrind: Processing of Residues from Plastic Production

Sufficient Stock at Lower Cost: Reducing the Cost of Carrying Safety Stocks

By A. Sharabi Following, please find how accurate level measurement can improve inventory reporting and reduce safety stocks of bulk solids, helping companies meet financial targets, reduce costs and increase sales. Continue reading Sufficient Stock at Lower Cost: Reducing the Cost of Carrying Safety Stocks

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

By S. Roos 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. Continue reading Bulk Materials Storage Design: Considerations for the Design of Materials Handling Storage Plants

Reduce Conveyor Servicing Costs: Mexican Cement Manufacturer Addresses Conveyor Carryback

By R. Felde Spillage from a belt conveyor isn’t just a dirty mess, it’s also a source of safety and cost problems. Following find a solution deliverd to Mexican cement manufacturer. Continue reading Reduce Conveyor Servicing Costs: Mexican Cement Manufacturer Addresses Conveyor Carryback

How to divide a Pneumatic Conveying Stream – Splitter for continuous Distribution of Bulk Solid Material during Pneumatic Conveyance

By K. Schneider Worldwide, a high number of so-called splitters as elements of pneumatic conveying lines are in operation, in order to continuously distribute the conveyed bulk material to several receiving stations. The present article provides an overview over the possible applications and typical configurations of splitters, with their advantages and disadvantages. Furthermore various selection criteria for usage of splitters are introduced and discussed. Continue reading How to divide a Pneumatic Conveying Stream – Splitter for continuous Distribution of Bulk Solid Material during Pneumatic Conveyance

Design of a High Speed Transfer Chute in a confined Space – A DEM Case Study

By A. Edilbert , R. Spaargaren, C. Geijs, J. Ruijgrok, G. Lodewijks, D. Schott This paper aims to redesign a transfer chute as used in a Eurosilo system specifically for handling coal. The velocity of material vertically entering the chute was estimated at 15 to 34 m/s depending on the fill height of the silo. A three-stage approach was taken. First the existing situation with the highest velocity was modelled with DEM (Discrete Element Simulations), and the results of the wear profile on the existing chute were compared with practice. Secondly, three configurations were designed and the performance of these configurations in terms of wear volume were tested by simulation. Thirdly, and lastly, the performance of the configuration in terms of ensuring material flow through the chutes for a cohesive coal was evaluated. Based on the results of the simulation, two chute designs showed an improved performance where less wear was observed while securing flow through the chute. Continue reading Design of a High Speed Transfer Chute in a confined Space – A DEM Case Study

Holding the World together: Cement – Systems for a more Energy-efficient and environmentally friendly Production

By D. Rose Cement is the most commonly used building material worldwide. Its manufacture is challenging due to ever stricter environmental regulations and cost pressures because of large overcapacities. Cement manufacturers need support with systems and machines which, adapted to the market, increase the efficiency of their production and, thus, their competitiveness. Continue reading Holding the World together: Cement – Systems for a more Energy-efficient and environmentally friendly Production

Bulk Bag Discharging plus Pneumatic Conveying – Enhanced Handling Capacity Boosts Plastic Compounding Productivity

The recycling and reuse of plastic materials calls for the conversion of scraps into workable raw materials which involves the compounding and pelleting of the scrap materials. The process used by a Spanish manufacturer equires the addition of mineral powder prior to extruding. Replacing the formerly open bag with a big-bag emptying station provided for a more efficient production and a cleaner working environment. Continue reading Bulk Bag Discharging plus Pneumatic Conveying – Enhanced Handling Capacity Boosts Plastic Compounding Productivity