solving chute problems - project review(3) - bmt wbm chute problems - project...a part of bmt in...
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A part of BMT in Energy and Environment
Solving Chute Problems – Project Review
www.bmtwbm.com.au
Transfer chute problems include blockages, spillage, belt and liner wear, and belt off tracking and are often a
consequence of poor design resulting in lost production. Chute design is a complex problem which can be best
optimized by combining practical empirical design rules, site experience and advanced analysis.
BMT WBM provides a complete engineering, design, and analysis service to improve transfer chutes and
maximise transfer point performance. Our design and engineering experience spans 40 years on mining
machinery including large conveyors, bucket wheel excavators, stackers, reclaimers, ship loaders and moving
hoppers. Recent projects include:
Abbot Point T0 Detailed Design
BMT WBM supervised the detailed design for
Abbot Point T0 coal handling plant. The chute
design was undertaken using practical design
rules, then refined and verified by BMT WBM
using Discrete Element Modelling (DEM)
methods.
Clermont Coal Mine
The overburden handling system at Clermont, as
initially installed, experienced major materials
handling issues from early operation, primarily
blocking of transfer chutes on the tripper and
stacker.
BMT WBM redesigned the transfer chutes to
improve the material flow. The chutes needed to
handle a variety of overburden products from hard
basalt, to sticky clay materials.
BMT WBM’s work has been a major success for
Clermont with a significant reduction in downtime
due to chute blockages, and increased output.
Clermont stacker and transfer chutesAbbot Point transfer chute DEM
www.bmtwbm.com.au
Citic Pacific Mining – Sino Iron Ore
The primary sized magnetite material handling
system transfer points have various problems
including belt off tracking, belt and liner wear, and
periodic blockages.
BMT WBM undertook a site visit and inspection of
the plant, and provided initial recommendations.
We undertook the design and drafting of some
interim modifications to improve the transfer point
immediately. The interim solution dramatically
improved the performance of the chute.
Subsequently BMT WBM has undertaken the
detailed engineering and drafting for a complete
new transfer chute, including relocation of the
head pulley to improve the material flow
trajectories. A structural analysis of the transfer
station was also undertaken.
Chute performance was verified using DEM
analysis, and structural integrity using FEA.
Chute maintenance was considered with access
walkways provided, multiple flange joints for ease
of assembly, and inspection hatches.
3D model of new transfer chute design
DEM analysis of material flowFEA analysis of chute structure