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Cool
and Reclaim Chemically Bonded
Post-Treat Thermally Reclaimed Sand
System Includes:
- Patented GMD PNU™ Cooler-Scrubber
- Blower(s) for Fluidizing and Blast Air
- Plenum Pressure Damper
- Cooling Tower
- Water By-Pass Valve
- Water Pump
- Controls
Options:
- Surge Bin
- PLC Controls
- Feed System
- Graphics Controls Package
Features Include:
- High Scrubbing Efficiency
- Absence of Moving Parts
- Continuous Processing
- Controlled Fines and Dust Removal
- Integration of Cooling and Scrubbing
- High Cooling Efficiency
- Low Energy Consumption
- Unattended Operation
- Total System Concept
"Guaranteed":
- Rated Capacity
- Loss on Ignition
- Cooling Efficiency
- Yield (On Base Silica)
- Sand Screen Distribution
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"PATENTED" Cooling: As sand passes through the cooling section
of the combination cooling and scrubbing unit, it is cooled directly with
fluidizing air and indirectly via finned water coils in the fluidized bed.
Cleaning: In the scrubber section the sand grains
are withdrawn from the fluidized bed, forced up the blast tube and impacted
against layers of sand grains being held against a target by the blast air.
Giving up its energy, the sand falls back to the fluid bed where it is collected
and again withdrawn and directed up the blast tube. This repeated vigorous
sand-to-sand contact causes the organics (binder), clay and metallic oxides
to dislodge from the sand grains. Any material removed from the sand grains
during this process along with unwanted silica fines are drawn off in a
controlled atmosphere and exhausted to the dust collection equipment. Recirculation
of the sand continues until finally the sand passes over the final weir,
discharging from the GMD PNU™ SCRUBBER ready
for reuse by the foundry.
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