Technical Papers

A challenge for designers of steel silos — by Australian Bulk Handling Review — last modified Sep 01, 2010 12:50 PM

In this technical paper, Jim Durack suggests that there may be a fundamentally new way of approaching steel silo design that is informed by the Eurocode but not limited by it.

Belt rip prevention and detection — by Alex Harrison *, CPEng, FIEAust. — last modified Aug 31, 2010 04:16 PM

The severity of conveyor belt longitudinal rips can be minimized by a dual approach involving both conveyor system design improvement and belt rip detection.

Discrete element simulation of a conveyor impact-plate transfer: calibration, validation and scale-up — by Australian Bulk Handling Review — last modified May 26, 2010 12:23 PM

This paper focuses on providing a validated technique to calibrate the material parameters in discrete element method (DEM) simulations and quantifying the “tuned” material model on a meso-scale conveyor impact transfer station. Quantitative measurements and qualitative observations are provided to determine the accuracy of the reaction forces and the bulk material trajectories between conventional continuum mechanics, DEM and experimental data. The effects of scaling-up the material model in DEM simulations are evaluated to examine possible procedures to optimise DEM simulations.

Combined front end DEM analysis and empirical design process to minimise transfer chute blockages — by Yong-Jin Kim,* BMT WBM advanced analysis team — last modified May 14, 2010 04:05 PM

BMT WBM conducted comprehensive design parameteric studies by DEM analysis in conjunction with the conventional chute design review process. It was proved that the selective DEM analysis enables designers to quantify the effect of design parameters. It also provided the critical operational envelop of the transfer chute if the bulk material handling properties and contact surface characteristics vary significantly.

Cutting edge, energy efficient conveyor systems — by Markus Ahrens*, ABB Australia - Scott Southby*, ABB Australia — last modified Apr 27, 2010 04:11 PM

The article describes the selection of variable voltage, variable frequency (VVVF) drive systems for conveyor applications, highlights design considerations and shows the energy saving potential of modern drive systems. In cases studies, a few demanding conveyor applications are described to illustrate the drives system selection and system integration aspects. Finally, an innovative integrated control system solution for conveyors is shown that allows faster and easier design and installation of conveyor VVVF drive systems.

Recent advances in bulk materials handling – a UK perspective — by Australian Bulk Handling Review — last modified Mar 03, 2010 12:03 PM

This paper focuses on providing an overview of various advances made in bulk materials handling practice in the United Kingdom in recent years.

On Improving the Calibration and Validation of Computer Simulations for Bulk Materials Handling Systems — by Bulk Handling Review — last modified Dec 08, 2009 08:00 AM

Discrete or Distinct Element Method (DEM) is proving to be a reliable and effective tool to model the behaviour of granular bulk materials. Numerous particle-scale (microscopic) mechanisms influence the bulk (macroscopic) behaviour of granular flow.

On Improving the Calibration and Validation of Computer Simulations for Bulk Materials Handling Systems — by Bulk Handling Review — last modified Dec 08, 2009 08:05 AM

Discrete or Distinct Element Method (DEM) is proving to be a reliable and effective tool to model the behaviour of granular bulk materials. Numerous particle-scale (microscopic) mechanisms influence the bulk (macroscopic) behaviour of granular flow.

Single-run dynamic simulation of conveyor belts — by Australian Bulk Handling Review — last modified Jul 24, 2009 12:25 PM

Velocities and belt tensions are simulated for starting, running and stopping in a single computer run. Inclusion of static and inertial conditions for each mass of a distributed mass-elasticity mechanical model is used to assess possible design problems. Effects of profile, rolling resistance, drive inertia, take-up friction and dispersive wave action can be examined in advance of a final design.

Condition monitoring of steel cord belts by remote access — by Australian Bulk Handling Review — last modified Jul 24, 2009 12:16 PM

With nearly 30 years of experience in testing steel cord and fabric belts, the original inventor of conveyor belt monitoring (cbm) in Australia summarises some of the latest North American developments in practical and technology-appropriate steel cord belt scanning using remote access.

20 Years of AMIRA P266 “Improving Thickener Technology”: How Has It Changed The Understanding Of Thickener Performance? — by Australian Bulk Handling Review — last modified Jul 07, 2009 03:04 PM

 

The transport of fly ash pastes through pipelines — by Australian Bulk Handling Review — last modified Jul 01, 2009 08:47 AM

Fly ash and water mixtures were pumped through a closed loop pipeline at various flow rates and solids concentrations, ranging from 51% to 74% by mass, while the pressure losses were measured.

A project for keyless friction locking assemblies — by Australian Bulk Handling Review — last modified Jul 01, 2009 08:47 AM

By Sandro Zamboni, president, and Massimiliano Margonari, FEM analyst, MAV S.p.A. Supplied by CBC Bearings & Power Transmission.

Vibration acceptance criteria — by Australian Bulk Handling Review — last modified Apr 07, 2009 03:54 PM

By Adam Mayers, mechanical engineer, Aspec Engineering

The pumpability of coal washery thickener underflow — by Australian Bulk Handling Review — last modified Feb 18, 2010 01:08 PM

This paper examines the pumpability of high concentration thickener underflow slurries as measured by a rotary viscometer.

Optimising the live capacity of gravity reclaim stockpiles — by admin — last modified Apr 16, 2009 10:13 AM

A new theory for funnel-flow with particular reference to gravity reclaim stockpiles is presented.

Optimisation of overland conveyor performance — by admin — last modified Jun 16, 2009 11:15 AM

This paper will explore the key elements to consider when designing overland conveyors to ensure effective capital expenditure, long trouble free life, low maintenance and cost effective operation.

Technical Papers — by admin — last modified Apr 03, 2009 01:06 PM