SIZE / CAPACITY
40 tons per hour
SERVICES PROVIDED
Conceptual Design
Struct./Mech. Engineering
Design & Supply Of Control System
Supply/Fabrication of all Equipment
Supervision of Equipment Installation
Commissioning and Training
SUPPLIED EQUIPMENT
Shotcrete Weigh Hopper
Three Screw Conveyors
Mixing Screw Conveyor
MCC/PLC System
Pneumatic Control System
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The Material Handling Team continued its development
of automated bulk shotcrete systems in designing
this surface pre-blended wet mix shotcrete
plant. This plant comprises of a series of
screw conveyors, shotcrete bin, wet-mix screw
conveyor and PLC control system.
This plant is designed to receive pre-blended
shotcrete from bulk carriers, and batch
wet mix automatically. The main shotcrete
bin utilizes load cells to batch subtractively.
The system will batch and mix the requested
quantity of wet shotcrete in 1/2 cubic yard
increments to a maximum of six yards. Water
(slump) may be adjusted by the operator,
entered as gallons per cubic yard. An automatic
self-cleaning cycle is initiated following
each batch. The controls have been simplified
to allow each driver to operate the plant
and minimal operator interface is required.
Bulk truck unloading is also automated
and no dust collector is required. The shotcrete
storage bin may be vented back to the truck
while loading.
All areas of operation are monitored and
fully interlocked. The system PLC is located
in the batching console at ground level.
As the system runs automatically, illuminated
pushbuttons serve as function indicators
and manual overrides. Alarms will sound
in both the truck unloading area and batching
area.
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