Stockpiling
A key component of most bulk
material handling systems is that of
storage. It is not always feasible or
indeed desirable to have material
in continual movement which means
that a form of storage is required.
In terms of bulk materials this
is usually done in the form of an
on-ground stockpile.
When considering how material is
to be stored there are a number of
factors that need to be taken into
account. Key among these is how big
does a stockpile need to be, how is
the material going to be placed onto
the stockpile and how is material going
to reclaimed. HMA Halley & Mellowes
Material Handling Division are able to
assist you in these areas to ensure a
successful solution is put in place.
HMA Halley & Mellowes (MHD) can outdoor stockpile storage and reclaim
Stockpile geometry provide a number of equipment and problems including coring, bridging,
HMA Halley & Mellowes (MHD) can process design solutions to meet the and minimal active reclaim by using
assist in determining an optimum various stockpile generation methods. vibratory action to transmit energy
stockpile configuration and geometry These include: directly into the stockpile, encouraging
to meet your process needs. • Stackers sloughing into the flow stream and
Whether it is a linear, conical or radial maximizing active reclaim.
Stationary
style of stockpile, HMA Halley &
Radial Individually engineered for each
Mellowes (MHD) can model a design
• Overhead application, the unique design of
to determine space requirements,
the Drawdown Hopper allows easy
available capacity, and reclaim volume. Fixed
installation with the ruggedness
We work with our clients to ensure all Tripper to stay on-line. To ensure proper
scenarios are explored to provide an
Travelling tripper application, HMA Halley & Mellowes
optimum solution.
As with all of our designs, these (MHD) engineers analyse the flow
Stockpile generation are customised to fit the project properties of your product and match
requirements. the correct Drawdown Hopper to the
There are many ways to generate a
project needs.
stockpile and it is important that the
Stockpile reclaim
requirements and characteristics of
HMA Halley & Mellowes (MHD) has
each project be taken into account
extensive experience in the design,
when selecting the method of loading
supply and installation of underground
material onto a stockpile. It is very
reclaim from stockpiles.
important that the stockpile geometry
and method of generation be worked Our Drawdown Hoppers are
together to ensure an optimum recognised around the world as
solution is arrived at. being a leader in the field of stockpile
activation. The design eliminates
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The Drawdown Hopper is only one
element of the reclaim system. It is
necessary to control the flow of the
material from the Drawdown Hopper
to the reclaim conveyor. HMA Halley
& Mellowes (MHD) can provide a
number of options for flow control
including:
• Vibratory feeder
• Swing hopper flow control gate
• Low head room flow control gate
The low head room flow control gate
is the latest innovation bought to the
market by HMA Halley & Mellowes
(MHD). It provides good control over
a wide range of flow rates, is low
maintenance with its use of low
friction polymer slide blocks and with
a reduced height, allows reduced
chamber and tunnel excavation and
construction costs.
HMA Halley & Mellowes (MHD) also
provides design solutions for discharge
chutes, conveyor skirting and
maintenance access platforms to offer
a complete reclaim system solution.
The underground reclaim system is
ideally matched with our PLS truck
or train loader as it provides a high
reclaim rate, consistency of feed and
high level of control. These features
allow the PLS design to be optimised
and operate at its maximum potential.
HMA Halley & Mellowes (MHD) are
also able to supply the civil design for
the underground tunnel as well as the
reclaim conveyor as part of a turnkey
package, which provides our clients of
an assurance of design compatibility.
