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The CAR-Series is Palmer's lowest cost Mechanical Sand Reclamation system.
Built around a heavy duty attrition mill, the CAR is designed for simplicity
of operation and years of trouble free service.
While inexpensive, the CAR still delivers
performance. This unit is ideal for small or infrequent reclaimed sand
users. Capacities from 1 to 5
tons per hour.
Features:
- Designed for Maximum Cost Efficiency
- Rugged, Ultra-Simple Skid-mounted Design
- Minimal Space Required
- Low Maintenance
- Easy Cleaning
- No Pit or Foundation Required
CAR-Series Systems
Include:
- Dual Screen Attrition
Mill including vibration dampening springs and stand.
- Direct Fed, Low Level
Fluid Bed Classifier
- System Motor Starter
Controls (Non-Sensored) - IEC Based Controls
Models
- CAR-1 Featuring 1 TPH
Attrition Mill
- CAR-3 Featuring 3 TPH
Attrition Mill
- CAR-5 Featuring 5 TPH
Attrition Mill
Note: All nominal attrition
mill output tonnages are based on 3-part PUNB @ 1.1% with 3:1 sand:metal ratio.
General
The CAR-Series Mechanical
Sand Reclamation System is designed as a complete no-bake
sand reclamation system for the cost conscious or low sand
volume user. The CAR features the same heavy-duty
construction featured on all Palmer equipment at a fraction
of the price.
The CAR provides users with
an inexpensive means of breaking down no-bake lumps to
usable grain sized sand in an easy-to-use package.
The CAR-Series System
includes as standard the attrition mill, classifier, and
system controls.
Attrition
Mill
The CAR-Series
Attrition Mill is a rugged, heavy-duty unit that is designed
to provide constant, reliable reclamation, year after year.
It is a top loading mill that contains no cross bars or
grates that interfere with inspection of the primary screen
or removal of tramp metal, gaggers, etc.
The attrition mill utilizes a
dual screen agglomeration reduction system that is comprised
of two perforated steel plates. The first is located in the
top chamber of the mill and permits only loose sand and
small lumps to feed into the bottom chamber. The second
screen is located at the discharge flange of the bottom
chamber. It allows only grain size sand and some compound
grains to exit the mill. Both screens are replaceable.
The CAR attrition mill
utilizes a 3 phase vibrator motor which is bottom mounted to
provide maximum agitation of the sand mass.
Classifier
The CAR-Series fluidized bed classifier is fabricated from 1/4"
steel and utilizes a regenerative type blower for
fluidization pressure. The blower eliminates fluidized bed
membrane saturation problems associated with the use of
compressed air.
A 4" diameter exhaust is
provided for connection to an existing dust collection
system.
Sand that is discharged from
the classifier is ready for use. The discharge of the
classifier can be configured for use with a bucket elevator
or vibratory transfer conveyor.
The classifier is constructed
from three major components:
- A plenum chamber into
which fluidizing air is blown by a blower.
- A fluidizing screen made from expanded metal for structure and canvas sheet for permeability
- A upper chamber which
serves as a cover and pressure chamber
The plenum chamber serves not
only as a base, but also a means of distributing the
incoming air to the underside of the fluidizing screen.
The fluidizing screen is
placed directly on top of the plenum chamber flange and is
held in place with the upper chamber.
The upper chamber is mounted
on top of the base. It serves not only as a cover, but also
as a dust collection chamber.
The fluidizing action of the sand assists in polishing each
grain, removing the fines produced by the casting process
and transport of the sand. A negative pressure maintained
over the bed by a dust collector (supplied by the customer)
and controlled by a gate located between the collector and
the classifier ensures that the fines are removed from the
chamber.
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