Category Archives: bulk solids handling Archive

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

Why new Splices fail – Splice Failures resulting from Rubber Compound Incompatibility

By A. van Staden An ailing economy has forced users of conveyor belting to find ways in which to extend the life of the belt. This can be achieved, but only if the conveyor system is well maintained and operated within original design parameters. In the recent past, a significantly aged belt was replaced by a new belt, thus virtually eliminating the risk of failure. Now, however, taking into account the cost of belting and the lack of capital in many companies, every last bit of life is squeezed out of a belt. Due to these factors it has become quite a common practice to replace only severely damaged portions of belt. Continue reading Why new Splices fail – Splice Failures resulting from Rubber Compound Incompatibility

‘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

BHS-Sonthofen: Bypass Dust in Cement Manufacturing – Reduce Energy Costs by utilizing Bypass Dust

By R. Schmid A new method allows the use of up to 100 percent alternative fuels for clinker manufacturing and the recovery of the resulting bypass dust as a recyclable material. Continue reading BHS-Sonthofen: Bypass Dust in Cement Manufacturing – Reduce Energy Costs by utilizing Bypass Dust

Static Electricity Hazards – Dust Cloud Ignition caused by Static Electricity

By M. O’Brian After emptying a powder from a plastic drum into a metal hopper, a spark occurred when the operator removed the drum, igniting the dust distributed in the air. The following paper presents an explanation about the “why” and “how not” of this accident. Continue reading Static Electricity Hazards – Dust Cloud Ignition caused by Static Electricity

Belts for Conveying Biomass – The Safety and critical Importance of Conveyor Belt Technology

By L. Williams For a great many reasons, the conveyor belts used to convey coal or other bulk materials are highly unlikely to be suitable for carrying biomass. Sadly some very expensive lessons are already being learnt. Here Les Williams of Dunlop Conveyor Belting discusses the essential and very specific characteristics that biomass-carrying belts must have in order to perform safely and efficiently. Continue reading Belts for Conveying Biomass – The Safety and critical Importance of Conveyor Belt Technology

Martin Engineering: Innovative Air Cannon Positioning at Clinker Cooler for easier Maintenance

By R. Felde A US cement factory faced serious problems with caking and build-up of hot clinker beneath the kiln discharge. Air cannons could fight this issue, but due to their positioning material backflow arose, necessitating extensive and awkward maintenance works. A retrofit and repositioning of the cannons reduced these efforts to almost naught. Continue reading Martin Engineering: Innovative Air Cannon Positioning at Clinker Cooler for easier Maintenance