Quadramatic Centrifuges
Design
The Quadramatic is a compact
and mechanically simple cyclic centrifuge designed for dependable
performance during continuous operation.
The Quadramatic features a suspension system designed to
significantly reduce vibration. Three unique "Cushion Ball
Suspension" pedestal mounts support the centrifuge for smoother
operation, and vibration-absorbing cushion pads are adjustable
to suit individual requirements.
The machine is easily and quickly dismantled when maintenance
is necessary, and no "special tools" are required. Bottom-driven
design allows for fully opening top and simple filter media
replacement.
Standard design meets all current applicable safety and
noise standards.
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Operation
1. The centrifuge accelerates
to a predetermined loading speed and the flow of feed is
initiated.
2. As centrifugal force drives the mother liquor through
the deposited cake, filter media and perforated  basket
wall, a cake builds up on the filter media.
3. The liquid effluent is discharged through a tangential
outlet.
4. After the suspended solids have filled the basket to
a preset volume or cake thickness, the cake detector provides
the signal to shut off the feed.
5. The retained solids are purged of mother liquor, washed
and accelerated to spin drying speed.
6. After spin drying, the centrifuge decelerates to discharge
speed and the discharger removes the product from the basket.
 An
alternative discharge method, not illustrated, allows top
removal of product in a filter bag.
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Basket
Options
Quadramatic's basket design
is one of the safest in the industry. The cast bottom is
accurately machined with the remainder of the basket fabricated
of heavy plate. Baskets are manufactured with extra-dimensional
fidelity, and all rotating parts are dynamically balanced
for optimum performance at 900 plus "G" force. Basket seam
welds are carefully X-ray inspected and certified.
Perforated baskets utilize a wide range
of filter media: woven wire mesh, drilled screens, laser
generated screens, polypropylene woven fabric, Teflon fabric
and other woven synthetic materials. Various backing layers,
filter media and plough plates can be combined to create
a special filter system for your product.
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Clean
In Place Option
The Quadramatic CIP option
represents an important breakthrough for batch processing.
Western States' Quadramatic was the first USDA-approved
CIP unit. This exclusive feature reduces normal cleanup
time from a matter of days to a matter of minutes for between-batch
cleanup of a single product or for switching to different
products.
Carefully placed CIP nozzles spray all surfaces with an
even coverage. As the basket revolves nozzles saturate the
upper surfaces and the lower section is thoroughly flooded,
as required, for cleaning of every surface.
The self-cleaning cycle can be programmed according to application
requirements. For example, in the manufacture of a leading
dairy product, the cleaning cycle consists of: (1) Warm
water pre-rinse; (2) Hot aqueous alkaline wash; (3) Warm
water rinse; (4) Hot aqueous acid wash; (5) Warm water final
rinse and possibly a (6) Sanitizing rinse. For solvent-based
operations the cleaning solutions can be solvents.
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Materials
Construction material for each
centrifuge is chosen to meet the customer's particular service
requirements. Baskets and all other machine parts in contact
with the product can be furnished in any workable, machinable
metal including: plain (mild carbon) steel, the full range
of stainless steels, Nickel, Inconel, Monel, Hastelloy,
Titanium, Ferralium |
and Duplex Stainless. Solid
stainless steel construction is standard. Also available
are rubber and elastomer linings, plus all the latest plastic
protective coatings. We offer polishes to 5 RMS, and all
Western States welds meet or exceed applicable industry
standards. Pending is ISO-9001 certified factory manufacturing
procedure. |
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