FULL LINE
®
Bulk Handling Equipment
and Engineered Systems
CONTENTS
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Materials . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Flexible Screw Conveyors . . . . . . . . . . . . . . 6
Flexible Screw Conveyors/BEV-CON™ . . . . 9
Pneumatic Conveying Systems . . . . . . . . . 10
Bulk Bag Dischargers . . . . . . . . . . . . . . . . 14
Bulk Bag Fillers. . . . . . . . . . . . . . . . . . . . . 18
Bag Dump Stations . . . . . . . . . . . . . . . . . 21
Drum Dumpers . . . . . . . . . . . . . . . . . . . . 22
Weigh Batching & Blending Systems. . . . . 23
Worldwide engineering, testing,
manufacturing and field support . . . . . . . 26
Convey, load, unload, weigh, feed,
and process virtually any bulk solid material
Flexicon Corporation is a
world leader in the design and
manufacture of bulk handling
equipment and customengineered and integrated plantwide systems that transport,
discharge, fill, weigh, blend,
deliver and/or feed a broad
range of powder and bulk solid
materials. Flexicon products
range from individual equipment
to automated systems that
source bulk material from interior
and exterior plant locations,
transport it between process
equipment and storage vessels,
weigh it, blend it, feed it to
packaging lines, extruders,
molding machines and storage
vessels, and load it into railcars
and trailers.
Choose from a broad range
of reliable, high performance
equipment in carbon steel
with durable industrial finishes,
or in stainless steel designed
and constructed to industrial,
food, dairy or pharmaceutical
standards:
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Gravimetric/Volumetric
Feeders
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Silos and other storage
vessels
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Dryers/Coolers
Multiple Delivery Systems
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Mixers/Blenders
Bulk Bag Fillers
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Screeners
Bulk Bag Dischargers
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Crushers/Grinders
Packaging Machines
Other bulk processing
equipment
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Flexible Screw Conveyors
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Pneumatic Conveying Systems
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Volumetric Feeding
Conveyors
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Flexicon also can customengineer automated, plant-wide
bulk handling and processing
systems that integrate Flexicon
equipment with bulk handling
and process equipment of
other manufacturers:
Weigh Batching Systems
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Manual Dumping Stations
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Lift-and-Seal/Open Chute
Drum Dumpers
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Storage Vessels
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®
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Materials
Handle free- and non-free-flowing bulk products including
problematic materials and blends—with confidence
Whether your bulk material is
comprised of large pellets, fine
powders or both, flows freely or
not at all, has a bulk density of
3 or 300 lbs./cu. ft. (50 or 5000
kg/m3), or packs, plugs, cakes,
smears, fluidizes, agglomerates,
breaks easily or separates, Flexicon
has most likely conveyed, fed,
discharged, filled, weighed,
dumped or otherwise handled it
many times before. In fact, moving
the most uncooperative bulk materials known to the chemical, paint,
food, pharmaceutical and plastics
industries has been a Flexicon
specialty since 1974.
Examples of Flexicon advances
in flow promotion include
FLOW-FLEXER™ bag activators,
POP-TOP™ bag stretching devices,
TELE-TUBE® telescoping tubes,
POWER-CINCHER® flow control
valves, BEV-CON™ conveyors,
high flow hoppers, deaeration/
densification beds and a host of
other components and accessories
that promote flow while reducing
degradation, dusting and/or the
separation of blends comprised
of disparate particles.
The ability to move your material
efficiently, together with equipment
designs and finishes that meet
numerous regional and national
codes worldwide for chemical,
food, dairy and pharmaceutical
applications, enables Flexicon to
satisfy virtually every aspect of
your bulk handling requirement,
regardless of material, industry or
location worldwide.
ABS RESIN
ACETAMINOPHEN
ALMONDS
ALUMINA
ALUMINUM OXIDE
ALUMINUM
TRIHYDRATE
AMORPHOUS SILICA
ANIMAL FEED
ANTIOXIDANT
ASCORBIC ACID
ASPARTAME
ASPIRIN
BABY POWDER
BACON BITS
BAKING SODA
BARIUM SULFATE
BARLEY
BEANS
BENTONITE
BISCUIT MIX
BLOOD, DRIED
BORIC ACID
BREAD CRUMBS
BREWERY YEAST
RUBBER
CAFFEINE
CAKE MIXES
CALCIUM CARBONATE
CALCIUM STEARATE
CARBON ACTIVATED
CARBON BLACK
CARPET DEODORIZER
CARRAGEENIN
CASEIN
CAT FOOD
CAT LITTER
CELLULOSE FLOCK
CEMENT
CEREAL FINES
CHEESE POWDER
CHEESE, DICED,
FROZEN
Moist, sticky materials
CHEESE, GRATED
CHILI POWDER
CINNAMON & SUGAR
MIXTURE
CITRIC ACID
CLAY
COCOA POWDER
COCONUT
COFFEE BEANS
COFFEE CHAFF
COFFEE, GROUND
COOKIE CRUMBS
CORN
CORN FLOUR
CORN GRITS
CORN KERNELS
CORN MEAL
CORN STARCH
CREAMER
CRUMB RUBBER
CRYOGENIC MEDIA
DETERGENT
DEXTROSE
DIATOMACEOUS
EARTH
DONUT MIX
DRINK MIXES
EGG POWDER
EPOXY RESIN
FERTILIZER
FIBERGLASS
FILTER AID
FLAME RETARDANT
FLOUR
FLY ASH
FRUCTOSE
FUMED SILICA
GARLIC, WHOLE
GELATIN POWDER
GLASS BEADS
GLASS MICROSPHERES
GRAHAM CRACKER
CRUMB
GRAINS
GRANOLA
GRAPHITE POWDER
GRAVY MIXES
GRITS
CRYOGENICALLY
GROUND PLASTICS
& RUBBERS
GUAR GUM
GYPSUM
HERBICIDE
INFANT FORMULA
IRON OXIDE
IRON POWDER
KAOLIN CLAY
KRATON RUBBER
LACTOSE
LAXATIVE
LEAD OXIDE
LIME, HYDRATED
MAGNESIUM
CHLORIDE
MAGNESIUM OXIDE
MAGNESIUM
STEARATE
MAGNESIUM
SULFATE
MALT
MALTODEXTRIN
MARBLE DUST
METAL POWDER
MICRO CRYSTALLINE
CELLULOSE
MILK POWDER
MONOSODIUM
GLUTAMATE (MSG)
NUTS, GROUND
NUTS, WHOLE
OATS
PANCAKE MIX
PAPRIKA
PENTAERYTHRITOL
PERLITE
PET REGRIND
Friable materials
Above is a sampling of materials
handled by Flexicon equipment
and systems. For performance
data on your specific material(s),
please consult your Flexicon
applications engineer.
Abrasive materials
Free-flowing materials
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PHARMACEUTICAL
POWDER
PHENOLIC RESIN
PIGMENTS
PLASTIC FLAKE
PLASTIC PELLETS
PLASTIC POWDER
PLASTIC RESIN
POLY VINYL ALCOHOL
POLY VINYL
CHLORIDE (PVC)
POLYETHYLENE
POTATO FLAKES
POTATO FLOUR
POTATO PEARLS
POTATO STARCH
POTATOES, INSTANT
PRETZEL SALT
PROTEIN POWDER
PSYLIUM HUSKS
PVC REGRIND
PVC RESIN
RED IRON OXIDE
REGRIND
RICE
RICE HULLS
SALT
SAND
SAWDUST
SEASONING
SEEDS
SEMOLINA
SESAME SEED
SILICA HYDRAGEL
SILICON DIOXIDE
SILVER POWDER
SOAP POWDERS
SODA ASH
SODIUM
BICARBONATE
SODIUM CHLORIDE
SODIUM CITRATE
SODIUM SILICATE
Products that pack, cake,
smear or plug
Non-free-flowing products
Contamination-sensitive
products
Materials that fluidize
SODIUM STEARATE
SODIUM SULPHATE
SODIUM
TRIPOLYPHOSPHATE
SORBITOL
SOUP BASES
SOUP MIX
SOY BEANS
STARCH
STEARIC ACID
SUGAR,
CONFECTIONERY
SUGAR, CRYSTAL
SULFUR
SUPERABSORBENT
TALC
TEA
TEA LEAVES
TEFLON
TEREPHTHALIC ACID
THERMOSET RESIN
TITANIUM DIOXIDE
TONER
TRI-SODIUM
PHOSPHATE
UREA
UREA PRILL
VEGETABLES,
DEHYDRATED
VERMICULITE
VINYL RESIN
WHEAT FLOUR
WHEAT GLUTEN
WHEAT STARCH
WHEY
WOLLASTONITE
WOOD CHIPS
WOOD FLOUR
XANTHUM GUM
ZEOLITE
ZINC OXIDE
ZINC PHOSPHATE
ZINC STEARATE
Blends of dissimilar
ingredients
Hazardous materials
Large particles
Systems
Using samples of bulk material
you supply, Flexicon can evaluate
and/or test your material in a
state-of-the-art test laboratory
on full-size equipment configured
and accessorized to simulate
your system, supply the equipment on time, help you install
it, train your personnel, guarantee its performance and service
it on-site.
Because Flexicon offers a wide
range of equipment, including
mechanical and pneumatic conveyors, as well as systems that
incorporate equipment of other
manufacturers, you are assured
of receiving a recommendation
based on your requirement, not
on limited equipment availability.
From concept to completion,
Flexicon can provide everything it
takes to solve your bulk handling
problem efficiently, economically
and rapidly.
To help you identify the
conveyor(s) that may suit your
needs, check the conveyor
characteristics most important
to you, at right.
CONVEYOR CHARACTERISTICS
Short distances
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Medium distances
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Long distances
Lowest initial cost
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Lowest energy consumption
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Indirect conveyor routing required
Flexibility of conveyor routing
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Simplest installation
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Multiple material sources
Multiple material destinations
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Mobile units
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Evacuation of material
from conveying system
No separation of blends
DILUTE PHASE VACUUM
PNEUMATIC CONVEYORS
Flexicon can evaluate your
bulk material(s), plant layout,
through-put rates, residual
product limitations, cleanliness,
noise limitations, access, cost,
cycle times and other parameters, and outline the solution to
your bulk handling problem.
Flexicon flexible screw and
pneumatic conveying systems
offer distinct differences in
performance relative to specific
application requirements. Since
many plants convey a variety
of bulk materials in a range of
capacities over varying distances,
a combination of pneumatic and
flexible screw conveying is often
recommended to maximize overall
performance and return on
investment.
FLEXIBLE SCREW CONVEYORS
Flexicon can submit recommendations in the form of CAD
drawings that integrate equipment manufactured by Flexicon
and by others, with new or
existing equipment in your plant,
and provide a competitive price
quotation.
CHECK YOUR REQUIREMENTS
You can alleviate the burden
and risk of designing your
system, coordinating multiple
suppliers, integrating components, trouble-shooting start-up
and assuming responsibility for
system performance, by relying
on Flexicon for it all.
DILUTE PHASE POSITIVE-PRESSURE
PNEUMATIC CONVEYORS
One-stop source for engineered, integrated bulk handling systems
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Convey directly from barrel or Gaylord
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Materials that pack, cake or smear
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Heat-sensitive material
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High temperature material
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Ultra-high temperature destination
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Extreme material in-feed rate fluctuation
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Contamination-sensitive material
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Hazardous material
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Flexible Screw Conveyors
Move virtually any free-flowing or non-free-flowing bulk material
Only one moving part
The only moving part contacting
material in a Flexicon flexible
screw conveyor is the rugged
flexible screw which is driven by
an electric motor. As it rotates,
the screw propels material and
self-centers within the conveyor
tube, providing constant clearance between itself and the
tube wall.
This simple design does not
require cables, chains, disks,
internal bearings, and numerous
moving parts found in bucket
elevators, rigid augers, drag
chains, and/or aeromechanical
conveyors—parts that can add
initial cost, require maintenance,
wear out, breed contamination,
and/or break down.
Enclosed tube
prevents contamination
A Flexicon flexible screw conveyor is totally enclosed, dust-free,
and mess-free, preventing contamination of your bulk products
and plant environment, while
preserving the moisture and temperature levels of materials being
conveyed.
Compare the smooth interior surfaces of a Flexicon flexible screw
conveyor with potential contamination sources found in other
conveyors, and you may specify
the Flexicon flexible screw
conveyor on the basis of
product purity alone.
Even more importantly, Flexicon
flexible screw conveyors offer
efficiency and versatility, conveying bulk materials ranging from
large pellets to sub-micron
powders—both free-flowing and
non-free-flowing—including
difficult-to-handle products
that pack, cake, seize, fluidize,
plug, or smear, with no separation of blends. (See “Materials,”
page 4).
Gentle product
handling and blending
Flexicon flexible screw
conveyors can handle your
products gently, because the
flexible screw self-centers as
it rotates. This can provide
ample clearance between
the screw and tube wall to
prevent grinding, crushing,
and other product damage.
In addition, the gentle rolling
action created by the screw
prevents the separation of
blends throughout the entire
length of the conveyor.
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Convey in any direction
Whereas many conveyors have
limited angles of incline and/or
straight-only conveying paths,
Flexicon flexible screw conveyors
can move material vertically,
horizontally, or at any angle—
over, under, or around
obstructions, through
small holes in
walls or
ceilings.
Flexible screw pioneer
Fast, thorough cleaning
Perhaps no other manufacturer
has advanced the application
of the flexible screw conveyor
as far and as fast as Flexicon—
the first to introduce 4 1/2 inch
(115mm), 6 inch (150mm), and
8 inch (200mm) diameter
screw/tube combinations that
elevated the capacity of this
category of conveyor more than
10-fold in an 8-year period. After
more than 10,000 installations
worldwide involving a gamut of
bulk materials, Flexicon has
amassed a wealth of performance data on flexible screws—
many of which have been engineered, machined and formed to
Flexicon specifications. To you, it
means that Flexicon has most
likely solved your problem in the
most efficient and cost-effective
manner possible—or can do so
as a matter of routine.
A Flexicon flexible screw
conveyor has no internal cracks,
crevices or bearings that can
trap particles or prevent thorough
cleaning. Simply remove the
clean-out cap and reverse rotation to evacuate any residual
material prior to flushing with
air, water, steam, or cleaning
solution. The screw and tube
can be removed quickly for easy
and thorough cleaning.
High reliability,
low maintenance
A Flexicon flexible screw
conveyor has no internal
bearings, cables, filters, chains,
buckets, or other potentially
problematic components to wear,
break down, or require maintenance. The only moving part
contacting material is a rugged
flexible screw which resists wear
and fatigue, and is driven by an
electric motor.
Even under a full load of moist,
dense product—depending on
application parameters—a
Flexicon flexible screw conveyor
can start and stop repeatedly
with no binding or damage to
the unit. The result is a conveyor
without load limitations that runs
dependably, boosting productivity
while cutting maintenance.
To suit your cleanliness
requirements, all Flexicon
flexible screw conveyors are
available in carbon steel with
durable industrial finishes, or
in stainless steel with industrial
or sanitary finishes, including
designs and construction for
3-A compliance.
Economical to purchase,
install and operate
A Flexicon flexible screw conveyor does not require the internal
and external components that
can make other conveyors
expensive to build and operate.
The only moving part contacting
material is the rugged flexible
screw that resists wear and
fatigue, resulting in extraordinary
reliability and minimal
maintenance.
Because the screw and tube are
flexible, and can be routed easily
Volumetric
feeding conveyors
Flexicon flexible screw
volumetric feeding conveyors
provide simultaneous metering
and conveying of bulk solid products. The units are equipped
with AC or DC variable speed
drives and hoppers with flow
promotion devices for
continuous feeding of
both free- and
non-free-flowing
materials.
in any direction, the
intake and discharge
can be positioned where
you need them, in situations that would be difficult,
costly or impossible to
satisfy with other conveyors.
Flexicon matches an unequalled number and type of standard and custom
flexible screws to a correspondingly
wide selection of hopper designs and
charging adapters to meet all of your
material and process parameters with
the greatest efficiency and reliability.
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Mobile and
custom configurations
All Flexicon flexible screw
conveyors are available on
caster-mounted frames with
conveyor support masts for
in-plant mobility, reducing
the need for multiple
stationary units.
Both mobile and stationary
units are readily customized
using interchangeable screws,
conveyor tubes, motor drives,
hoppers, flow-promotion devices,
sensors, controllers, and other
components to satisfy the most
diverse and demanding enduse requirements.
Multiple discharge
point systems
Horizontally-oriented Flexicon
flexible screw conveyors can feed
multiple packaging machines,
molding machines, and other
process equipment. The system
can convey bulk material over
short to medium distances, feed
multiple discharge points selectively, or top off all points on a
timed cycle through manual or
automatic slide gate valves.
Divergent angles of Flexicon's patented
high flow hopper design reduce the
ability of non-free-flowing materials to
establish a bridge between the hopper
sidewalls, instead causing material to
topple and flow toward and down the
steep backwall, increasing the flow
of bulk materials while decreasing
residual material in the hopper.
Flexicon flexible screw conveyors are
available on caster-mounted frames
with conveyor support masts for inplant mobility. Hoppers are available
with dust collection hoods for manual
dumping of bags, boxes and drums.
Flexicon offers a multitude of
mechanical and pneumatic hopper
accessories to promote the flow of
poor-flowing or non-free-flowing
materials. This hopper features dual
agitators with interlocking paddles
that de-agglomerate bulk material,
promoting void-free charging of
mechanical conveyor intake adapters.
Flexicon’s Low Profile Flexible
Screw Conveyor positions the
motor drive at the inlet end of
the conveyor tube, allowing the
discharge end to fit within limited
headroom areas often encountered
above weigh hoppers or other
receiving vessels.
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Bev-Con™ Conveyors
Handle difficult-to-convey bulk materials
BEV-CON™ flexible screw
conveyors from Flexicon
handle powder and bulk solids
including materials that tend
to pack, cake, smear, plug,
fluidize or separate.
BEV-CONTM conveyors are also
highly effective for handling
fragile or brittle products that
tend to break or crumble from
the friction, crushing, grinding,
pressure, or impact that can
occur in other conveyors.
Products ideally suited to
the special capabilities of a
BEV-CONTM conveyor range from
sub-micron powders to large
pellets and include:
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CHEMICALS:
Titanium dioxide, carbon
black, calcium carbonate,
powdered lime, rubber,
detergent powders and
sulphur
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FOODS:
Cake mixes, soup mixes, gravy
mixes, cocoa powder, cheese,
candy, milk powder, dehydrated, frozen or raw
vegetables, fruits and nuts
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PHARMACEUTICALS
AND COSMETICS:
Talc, titanium dioxide, zinc
oxide, clay, calcium carbonate,
powder and finished
bulk of all types
Versatile configurations
conform to your application
Moist, sticky materials
Friable materials
Products that pack, cake,
smear or plug
BEV-CONTM units have a straight
conveyor tube which is generally
supported by attaching the drive/
discharge end to an over-head
joist, tank rim or any other solid
structure.
The conveyor tube may be
routed through small openings
in walls or ceilings. BEV-CONTM
conveyors are also available on
frames with masts and casters
for in-plant mobility.
A wide variety of conveyor
tubes, motor drives, hoppers,
and bag dump dust collectors
in a range of sizes, shapes and
materials, enables Flexicon to
custom build a BEV-CONTM
conveyor to your specific
requirements.
This BEV-CONTM conveyor is
equipped with a highly specialized
flexible screw matched to material
characteristics and other application
requirements.
BEV-CONTM conveyors are available in carbon steel with durable
industrial finishes, or stainless
steel in industrial or sanitary
finishes, including designs and
construction for 3-A compliance.
BEV-CONTM Conveyors can transport
difficult-to-handle bulk materials
vertically, horizontally or at any
angle. This low-incline, mobile configuration is designed, constructed
and finished to 3-A and USDA Dairy
standards, and allows dust-free
connections to upstream as well as
downstream equipment.
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Dilute Phase Pneumatic Conveying Systems
Flexicon dilute phase pneumatic conveying systems
range from single-point
“up-and-in” installations
to cross-plant systems with
multiple pick-up and discharge points and automated controls, satisfying an
exceptionally wide range of
bulk conveying applications.
All are custom-engineered
and fully integrated with
other Flexicon equipment
and systems, and your new
or existing process.
Flexicon dilute phase
pneumatic conveying systems
move bulk materials that are
suspended in an air stream that
is introduced by a positive pressure blower upstream of material
intake points, or by a vacuum
pump that removes air from the
system downstream of material
discharge points. Material is separated from the conveying air at
the use point, then discharged
on a batch basis via butterfly or
slide gate valves, or continuously
via rotary airlock valves.
Positive pressure systems
Vacuum systems
Positive pressure dilute phase
pneumatic conveying systems
are typically employed to convey
bulk materials from a single
source to one or multiple destinations, over longer distances
and with greater capacity than
possible using vacuum systems.
Vacuum dilute phase pneumatic
conveying systems are generally
employed for transporting material from multiple sources such
as storage vessels, process
equipment, trucks and rail cars,
to individual or multiple destinations. Unlike positive pressure
systems, vacuum systems allow
easy pick-up of materials from
open containers using wands,
and do not impart heat to the
material. Since vacuum systems
offer superior leak containment,
they are often specified on
the basis of cleanliness, particularly when handling hazardous
materials.
These systems utilize a
positive displacement blower
with single or multiple downstream material entry points,
each of which meters product
into conveying lines by means of
a rotary airlock valve that maintains the pressure differential
between the ambient atmosphere and that of the conveying
line. Material and air blown
through the line exit at single or
multiple use points where they
are separated by means of a filter receiver or cyclone separator,
or fed directly into process
vessels that are vented to downstream dust collection devices.
Pressure systems offer higher
efficiency than vacuum systems,
can convey over longer distances, and can blow directly
into process and storage vessels
without the use of a rotary
airlock valve.
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Negative pressure is created
by a positive displacement
vacuum pump located at
the downstream end of the
system. Material typically
enters the system via upstream
rotary airlock valves, hand-held
pick-up wands, and non-flowthrough/flood-feed pick-up
adapters, and exits the system
through filter receivers or cyclone
separators that separate the
material from the conveying air
directly above process equipment, surge hoppers, storage
vessels or other discharge points.
In addition, vacuum conveying is
suited to direct feeding of
blenders, reactors and other
enclosed process vessels that
are put under vacuum by a line
terminating at a downstream bag
house or other dust collection
device, eliminating the need for
individual filter receivers or
cyclone separators above each
discharge point.
A complete range
of pneumatic system
components
Flexicon provides any and
all components necessary to
configure your pneumatic
conveying system including:
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Pressure blowers and
vacuum pumps with
integral sound enclosures
with separate cooling
fans, and easy-access
maintenance points
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Rotary airlock valves in all
popular designs and sizes
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Flex-tube diverters,
wye-diverters, plug
diverters and other line
diverter configurations
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Filter receivers for lowto high-capacity
applications
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Cyclone separators for
low- to high-capacity
applications
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Gain-in-weight and lossof-weight batching systems
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Dust collectors and
bin vents
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Controls and electrical
equipment
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Hand-held pick-up wands
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Silos, day bins and other
storage vessels
Easy conveyor line routing
Since conveyor lines can be
routed vertically and in any
horizontal direction, over short
or long distances, through
small holes in walls or ceilings,
Flexicon pneumatic conveying
systems are easy to integrate
into production environments in
which process equipment and
other obstacles often exist, while
consuming minimal floor space.
Flexicon filter receivers incorporate
numerous design and construction
innovations offering unsurpassed
separation efficiency across all
capacity ranges. Low-capacity
units (left) are commonly positioned above packaging lines or
smaller process equipment, while
medium-capacity units (below)
are utilized above storage vessels
and process equipment such as
blenders and bulk bag fillers.
Diversity of products
handled by one conveyor
Powders having wide ranging
bulk densities, as well as flakes,
pellets, capsules, tablets and
other friable materials, can be
handled by a single Flexicon
pneumatic conveyor, providing
the flexibility needed to
transport multiple ingredients.
(See “Materials,”page 4).
Total evacuation
Flexicon pneumatic conveying
systems fully evacuate the
vessel being discharged and the
conveyor line itself, minimizing
cross-contamination of multiingredient systems. Complete
transfer of material also ensures
that individual and consolidated
batch ingredients reach their
destinations accurately by
weight, maximizing quality
while minimizing waste.
Wide capacity range
With a Flexicon pneumatic conveyor, capacity can range from
several pounds to tens of tons
per hour, feeding any destination
from small packaging lines to
silos and railcars. Moreover,
excessive fluctuations in the feed
rate—resulting in overloading
or underloading—will not
damage the system.
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Material discharge methods
Material intake methods
Material typically exits pressure and vacuum pneumatic
conveying systems via filter receivers or cyclone separators,
or discharges directly into process or storage vessels. Positive
pressure systems can additionally employ fill/pass valves to
discharge material from the system at one use point, or
redirect the material to another use point.
Pressure and vacuum conveying systems commonly utilize rotary
airlock valves to introduce material to the air stream. Hand-held
wands and non-flow-through (flood-feed) pick-up adapters can be
utilized with vacuum systems.
Filter Receivers
(Pressure and vacuum systems)
Flexicon filter receivers separate
solids from the air stream using
filter media and gravity, and are
generally specified when materials
contain smaller particles that are
prone to dusting and/or when dust
containment is a primary requirement. They are normally located
above material use points, and
employ reverse-pulse jet filter
cleaning to dislodge accumulated
dust from filter surfaces, allowing
continuous and efficient separation
of material from the air stream.
Cyclone Separators
(Pressure and vacuum systems)
Cyclones separate solids from
the conveyor air stream using
centrifugal force and gravity,
and are typically specified when
materials are comprised of larger
particle sizes that are not prone
to dusting. Although filters are
uncommon, they can be
incorporated as a secondary
means of capturing airborne solids.
Rotary Airlock Valves with FlowThrough Pick-Up Adapters
(Pressure and vacuum systems)
Rotary airlock valves with flowthrough pick-up adapters can be
utilized in pressure and vacuum
systems for both controlled metering of material into the conveying
system, and maintaining the
pressure differential between the
conveying system and ambient
atmosphere.
Wands
(Vacuum systems)
Hand-held pick-up wands
plumbed to vacuum conveyor
lines with flexible hose are used
to vacuum material from Gaylords,
drums, paper bags, barrels or
other containers.
Non-Flow-Through (flood-feed)
Pick-Up Adapters
(Vacuum systems)
Material can be introduced into
vacuum conveyor lines via nonflow-through (flood-feed) pick-up
adapters, which are typically used
at pick-up points where lower
volumes of material are fed
manually.
Fill/Pass Valves
(Pressure systems)
Fill/pass valves are commonly used
to discharge material directly into
individual or multiple process
vessels and/or to deliver it to several
destinations along a common
conveying line. Downstream of the
last fill/pass valve, the conveying
line is normally routed to the
original material source point
or into a dust collection device.
Directly Into Process Vessels
(Pressure and vacuum systems)
Both pressure and vacuum systems
can feed material directly into
blenders, reactors and other
enclosed process vessels that are
vented to a downstream bag house
or other dust collection device,
eliminating the need for individual
filter receivers.
Material pick-up points, clockwise from top left, include hand-held
pick-up wand, rotary airlock with flow-through adapter, non-flow-through
pick-up adapter, and rotary airlock with flow-through pick-up adapter.
12
Enclosed system
prevents contamination
Mobile and custom
configurations
Totally enclosed and dust-free,
a Flexicon pneumatic conveying
system prevents contamination
of the product and plant environment, allowing safe transfer of
contamination-sensitive materials
including dusty and hazardous
products.
Self-contained Flexicon
pneumatic conveying systems
complete with feed hopper
and/or pick-up wand, blower
unit, filter receiver and control
package, are available preengineered and configured
on caster-mounted frames
for in-plant mobility.
High reliability and ease of
maintenance
Flexicon pneumatic conveying
systems feature easy-to-maintain
filter receivers with access doors
and inspection ports, as well as
rotary airlock valves with optional
rotor support bars for easy access,
cleaning and inspection.
Medium-capacity filter receivers
(left and below) are normally
specified in conjunction with
medium- to high-capacity storage
vessels and process equipment,
while high-capacity units (bottom
left, with rotary airlock valve)
accommodate high rates typically
required for railcar and truck
unloading.
Designed, constructed and
finished to industrial and
sanitary standards
Flexicon pneumatic conveying
systems are available in carbon
steel with durable industrial
finishes, or stainless steel
finished to standards required
for industrial, food, dairy and
pharmaceutical applications.
Available upgrades include
quick-access and quickdisconnect fitments.
13
Bulk Bag Dischargers
Dust-free loading, untying, retying and removal of bulk bags
Revolutionary advances
overcome limitations of
outdated designs
Just as bulk bags changed the
way you stored and shipped bulk
material over the last decade, so
will these bulk bag dischargers
revolutionize the way you load,
untie, retie, remove and collapse
bulk bags in the future.
No longer must your operators
reach through cramped access
doors and awkward glove boxes,
struggle to retie partially empty
bags, clean up spillage after disconnections, dislodge products
from dead spots or flatten bags
manually.
Patented SPOUT-LOCK® clamp ring
eliminates dust during untying, discharge,
bag collapse and removal
The SPOUT-LOCK® clamp ring creates a high-integrity,
sealed connection between the clean side of the bag outlet
spout and the clean side of the telescoping tube. This prevents contamination of the product, while eliminating the
plant contamination that occurs when falling material displaces air and dust from the hopper. The clamp ring is fully
accessible and manually operated using quick-release handles for rapid and safe, yet secure, bag spout connections.
Model BFF Bulk Bag Discharger
(Forklift loading)
Shown with the following options: FLOW-FLEXER™ bag activators,
POWER-CINCHER® flow control valve, SPOUT-LOCK® clamp ring,
TELE-TUBE® telescoping tube, and hopper with non-flow-through pick-up
adapter for multiple pneumatic conveying lines.
14
Cantilevered I-beam
with electric hoist and
trolley allows positioning of bulk bag
without the use of a
forklift.
Performance never
before possible
You can eliminate the
drawbacks of outdated designs—
while dramatically improving
convenience, safety and cleanliness—with Flexicon's latest generation of bulk bag dischargers.
The heart of the new design is a
bag spout interface that not only
creates a dust-tight seal, but promotes material flow and total
evacuation. It also allows easy
retying of partially empty bags,
and can collapse empty bags—
free of spillage and dust.
Patented Z-CLIP™
bag strap holder
allows fast, easy
and secure
insertion and
removal of bag
straps.
POWER-CINCHER®
flow control valve
cinches the bag
spout concentrically.
Frames are offered
in carbon steel with
durable industrial
finishes or in stainless steel designed
and constructed to
industrial, food,
dairy or pharmaceutical standards.
BAG-VAC® dust
collector creates
negative pressure
when piped to
sealed system,
collapsing empty
bags prior to tie-off
and removal.
SPOUT-LOCK®
clamp ring eliminates
dust during untying
and discharge.
Pneumaticallyactuated FLOWFLEXER™ bag
activators promote
positive material
flow.
Operators are protected from falling
bags by four safety
frame crossmembers, and four
guard plates.
powders to large
pellets
Hopper is available
with hinged lid for
manual dumping
or clamped lid
(shown) for rapid
wash-down.
Patented TELE-TUBE® telescoping tube
prevents dead spots and promotes flow
The TELE-TUBE® telescoping tube raises the
SPOUT-LOCK® clamp ring for connection to the bag
spout, then lowers, applying continual downward tension.
As a result, the spout is kept taut at all times, preventing
excess spout material from bulging outward (creating
dead pockets) or falling inward (creating flow restrictions).
Works in conjunction with SPOUT-LOCK® clamp ring and
FLOW-FLEXER™ bag activators (see page 17) to promote
material flow and total evacuation.
TELE-TUBE®
telescoping tube
prevents dead
spots and
promotes flow.
A wide variety of
hopper designs connect
to processing equipment, pneumatic or
mechanical conveyors.
Model BFC Bulk Bag Discharger
(Electric hoist and trolley loading)
Shown with the following options: FLOW-FLEXER™ bag activators,
POWER-CINCHER® flow control valve, SPOUT-LOCK® clamp ring,
TELE-TUBE® telescoping tube, BAG-VAC® dust collector, and hopper
with adapter for flexible screw conveyor.
15
Total dust containment with
BAG-VAC® dust collector
The high-integrity connection
between bag outlet spout and
discharger creates a sealed system
that can be vented through a filter
sock to a central dust collection
system, or to an optional
BAG-VAC® dust collector.
Actuating the BAG-VAC® dust
collector creates negative pressure
within the sealed system to collapse empty bags prior to retying,
eliminating dust commonly emitted when bags are flattened manually. In addition, the BAG-VAC®
dust collector vacuums any particles trapped in spout creases during disconnect, eliminating the
need for awkward access ports.
Where absolute spillage containment is essential, an optional
double wall version of the
TELE-TUBE® telescoping tube
draws errant particles into the dust
collector through an annular gap
that encircles the bag spout seal.
Conventional iris valves also available
Leak-proof retying of spouts
with POWER-CINCHER® flow control valve
Unlike opposing bars that pinch
the spout of partially empty bags
from two sides, the patented
POWER-CINCHER® pneumaticallyactuated flow control valve contains a series of curved, articulated
stainless steel rods that cinch the
spout concentrically on a horizontal
axis for easy tie-offs, and vertically
in a tight zigzag pattern to prevent
leakage of even the finest powders.
It also resists jamming, breaking
and leaking, and allows full-open
discharge from bag spouts of all
popular diameters.
This BFC Series Bulk Bag Discharger
is equipped with a small surge
hopper that directs material into
the throat of a variable speed rotary
airlock feeder for volumetric or
gravimetric metering into positive- or
negative-pressure pneumatic
conveyor lines.
Flexicon Bulk Bag Continuous Lossof-Weight Dischargers feature an
activated surge bin and flexible screw
conveyor, allowing continuous loss-ofweight (gravimetric) feeding directly
from bulk bags. System software
switches to volumetric mode during
bag changes.
When a sealed connection is
unnecessary, iris valves are
recommended. To operate,
the bag outlet spout is pulled
through the iris valve which is
then closed around the spout,
preventing material flow. The
spout can then be untied, the
access door closed, and the
valve released slowly, reducing
uncontrolled bursts of material
into the hopper and dust into
the plant environment.
This Split-Frame Bulk Bag Discharger
accommodates bulk bags and—with
upper frame removed—rigid totes.
The removable top frame can also
be lowered to the plant floor for
connection and disconnection of
bag loops, significantly reducing
ceiling height requirements.
16
Flexicon’s Hoistable Bulk Bag
Discharger features a bag-lifting
frame that allows one operator to
replace bulk bags using an overhead
crane, and/or to hoist the entire unit
from a single lift point—with or without bulk bag in place—to weighing,
processing and storage areas.
Multi-purpose intake chute
and manual dumping station
The Multi-Purpose Hood allows
automatic discharging from bulk
bags as well as manual emptying
from sacks, drums and other
containers. Available as an option
on both BFC and BFF Series dischargers, it can operate with an
optional dust collector to prevent
contamination of the product and
plant environment.
Extra-wide receiving
cups and backstops
maximize the operator’s target area.
Round frame rails
are easy to locate
into receiving cups,
and slide into
position.
Fork tips slide easily and securely
into full-length rectangular sleeves,
unlike frames having separated
forklifting points.
Poor-flowing, nonfree-flowing and/or
compacted materials
will not fall through
the bulk bag discharge
spout consistently,
often “rat-holing”
or bridging as shown
above.
Z-CLIP™ bag strap
holders offer the fastest,
most secure way to
connect bag straps to
the lifting frame.
At timed intervals,
FLOW-FLEXER™
bag activators raise
and lower opposite
bottom edges of bulk
bags, promoting
material flow into
the discharge spout.
As the bag empties,
the stroke of the
FLOW-FLEXER™bag
activators increases,
raising the bottom of
the bag into a steep
“V” shape, while
POP-TOP™ extension
devices stretch the
bag into a cone
shape, promoting
complete discharge.
BFF Series Bulk Bag Discharger
(Forklift loading)
Shown with the following options: FLOW-FLEXER™ bag activators,
POP-TOP™ extension devices, Multi-Purpose Hood and manual dumping
station, Flexicon flexible screw conveyor, and load cells for automated
loss-of-weight weigh batching directly from bulk bags.
17
Bulk Bag Fillers
Three designs satisfy the entire range of bulk bag filling requirements without compromise
Flexicon offers three bulk bag
filler configurations, each of
which is engineered to deliver
optimum performance across
specific capacity ranges with
maximum cost effectiveness.
Flexicon’s patented
TWIN-CENTERPOSTTM filler
(bottom right), satisfies lowto medium-capacity filling
requirements and/or sanitary
applications where frequent
wash-down or compliance
with USDA Dairy standards is
required.
STANDARD FEATURES INCLUDE:
I
Rugged TWIN-CENTERPOSTTM,
REAR-POST or SWING-DOWNTM
configuration
I
Forklift fill head height
adjustment to accommodate all
popular bag sizes
I
Inflatable collar to hold and seal
the bag inlet spout
I
Pneumatically retractable bag
strap hooks for quick, positive
strap release
I
Vent port for air displacement
and dust control
OPTIONAL FEATURES INCLUDE:
I
Accurate weigh scale system
with automated control
I
Automated vibratory densification/
deaeration system to stabilize the
bag
I
Inflator to expand empty bag and
liner, and remove creases prior
to filling
I
Pneumatically actuated material
flow control valve
I
Custom controls for integrated
material feed system
I
Drum/box filling conversion kit
I
Powered fill head height adjustment (REAR-POST and SWINGDOWNTM fillers only)
I
Powered or gravity roller
conveyor for bulk bag staging
and removal
I
Forward-traveling, rear bag
strap hooks (REAR-POST
fillers only)
Pallet-jack accessible base
I
Material delivery systems
Flexicon’s latest bulk bag filling
innovation is the patent-pending
SWING-DOWNTM filler (page 19).
Designed for medium- to highcapacity applications, this
revolutionary design brings the
fill head to the operator at floor
level for faster, safer and easier
bag connections.
The REAR-POST filler (page 20,
bottom left) is intended for
medium- to high-capacity applications requiring pass-through
conveyors and/or powered fill
head height adjustment.
Each of these designs satisfies
a distinct range of bulk bag
filling applications, and is available with performance enhancements to meet your individual
requirements with extreme cost
effectiveness. From basic, lowcost fillers to automated, highcapacity systems and everything
in between, Flexicon offers precisely what you need for bulk
bag filling success.
Flexicon will custom engineer
an automated delivery system
according to your specific bulk
material and process requirements. Whether your system
must integrate with new or
existing upstream equipment,
elevate non-free-flowing materials, or prevent the surging of freeflowing materials from elevated
storage vessels, Flexicon offers
precisely what you need
to keep your filler well fed:
I
Flexible screw conveyors
I
Pneumatic conveyors
I
Controls and weighing systems
I
Conveyor and feeder inlet
adapters to interface with
material sources
I
Surge bins and other storage
vessels for overhead material
delivery
Patented TWIN-CENTERPOSTTM Bulk Bag Filler
Flexicon TWIN-CENTERPOSTTM Bulk Bag Fillers feature a patented frame design
that is exceptionally simple, strong and stable, and economical to fabricate. It
is the first bulk bag filler designed, constructed and finished to USDA Dairy
Accepted requirements, and is recommended for applications requiring low- to
medium-capacity filling and/or rapid, thorough wash-down.
18
Revolutionary Swing-Down™ Fillers
Brings fill head to operator for floor-level bag connections
Flexicon’s latest innovation in
bulk bag filling features a pivotdown fill head that enables the
operator to connect empty bags
at floor level and resume filling
operations rapidly, eliminating the
need to climb steps, strain to
reach overhead connection
points, or risk injury associated
with operation of conventional
bulk bag fillers.
The SWING-DOWNTM filler
simultaneously lowers and pivots
the fill head, stopping it in a
vertically-oriented position that
places the bag inlet spout inflatable connection, inflator button,
and four bag loop latches within
one arm's length of an operator
standing on the plant floor.
Bringing the fill head to the operator in a vertical position at floor
level can significantly increase
the safety and speed of connecting bulk bags, since the connection points of a conventional filler
are beyond the reach of most
operators, even when short bags
are being filled. For example, the
connection points for bulk bags
of only 48 inches (122 cm) in
height are approximately 7 feet
(213 cm) above the floor, considering the height of a roller conveyor and the length of bag loops
in addition to the height of the
bulk bag.
An operator is connecting a bag
spout to the vertically-oriented
bag connection frame at floor
level.
As the entire fill head rises, the
bag connection frame is pivoting
to a horizontal position.
The design also eliminates the
danger of repeatedly stepping
onto and over roller conveyors to
access rear bag hooks and spout
connection collars, and of standing on the conveyor and bending
over with head and arms inserted
beneath operational fill head
components to pull bag spouts
upward over inflatable collars
while reaching for bag inflator
buttons.
An innovative latch mechanism
automatically resets the latch after
releasing the bag loops, and repositions it as the fill head pivots
into a vertical position, enabling
the latch to receive bag loops easily inserted by an operator and to
re-latch automatically, securing
the bag.
The bag connection frame has
pivoted to horizontal position, the
fill head is raised to “bag fill”
position, and the bag has inflated to remove creases.
A remote console or wall-mounted panel houses controls to raise
and pivot the fill head into a
locked, horizontal "fill position,"
automatically inflate the bag to
remove creases, open a flow control valve or start a feed device,
and stop the flow of material
once a preset fill weight has been
gained. Optional vibratory decks
deaerate and densify material in
the bag at preset set points to
create a solid, stable bag, ready
for shipment.
Once bags are filled, the controller
deflates the spout connection collar, releases the loop latches, and
raises the fill head to fully disengage the spout, enabling the bag
to exit the filler automatically on
the roller conveyor.
PATENT PENDING
SWING-DOWNTM Bulk Bag Filler
Flexicon’s SWING-DOWNTM Bulk Bag Filler represents a total re-think of the
bulk bag filling process, allowing operators to connect empty bags at floor
level, significantly improving the ergonomics and safety of a repetitive task.
19
Bulk Bag Fillers
Low- to high-capacity configurations
Basic units to fully automated, high capacity, feeder/filler systems
For fast, accurate, and stable
weigh-filling of small to large
volumes of free- and non-freeflowing bulk materials, Flexicon
bulk bag fillers are offered in two
configurations: with load cells
which measure weight gain of
the bulk bag filler (below)
and with weigh hoppers suspended above the bag filler
(right) allowing simultaneous
recharging of the hopper and
replacement of the bulk bag to
achieve high filling rates.
Flexicon's Low Profile Bulk Bag
Filler allows removal of loaded bags
using a pallet jack, eliminating the
need for a forklift.
Inflatable collar holds
and seals bag inlet spout.
Air displacement outlet for connection to
filter sock, cartridge filter, or dust collector.
(Hidden by discharge spout assembly)
Pneumatically
retractable bag hooks
partially suspend bag
during filling for superior bag shape, stability,
and utilization of
capacity. Bag straps
are released manually,
or automatically upon
completion of filling
cycle.
Bag inflation blower
removes creases
and pre-shapes
bag, allowing
material to fill
corners for maximum bag stability
during shipment.
(Also available
with plant air
connection)
Manual fill head
height adjustment
accommodates all
popular bag sizes.
Powered height
adjustment also
available.
This TWIN-CENTERPOSTTM frame
can be forklifted onto an all-purpose
plant scale, eliminating the cost of
load cells and controls.
Electric or pneumatic
vibratory deaeration/
densification bed with high
amplitude/low frequency
motion. Inflatable air
mounts raise bed and
isolate vibration.
Load cells with overload protection transmit weight-gain information to the system
controller.
Patented TWIN-CENTERPOSTTM Bulk
Bag Fillers are available in USDA Dairy
Accepted construction and finish.
REAR-POST Bulk Bag Filler
Flexicon REAR-POST Bulk Bag Fillers feature a cantilevered fill head that
provides three-sided access preferable for “pass-through” conveying using a
roller conveyor. It also offers powered fill head height adjustment as an
option, allowing rapid raising and lowering of the fill head to accommodate
bags of varying heights, without the use of a forklift.
20
Bag Dump Stations
Reverse-pulse filter cleaning for continuous operation
Collect dust efficiently
Flexicon bag dump stations
collect dust generated when
dumping powder and bulk solids
from bags, boxes, drums, and
other containers, and return the
material to the hopper.
The system reduces material
waste and eliminates the
need to clean a remote dust
collection site, while protecting
workers and preventing plant
contamination.
All units feature a high-velocity
vacuum fan which draws airborne dust away from the operator through two cartridge filters
which are sized according to the
application.
To operate, the hopper lid is
opened, the vacuum fan is
activated, and material is
dumped through the hopper
screen. Airborne dust in the
vicinity of the hopper opening
is drawn into the dust collector,
protecting workers, preventing
plant contamination, and
reducing material waste.
compressed plant air inside the
cartridge filters, causing dust
build-up on the outer filter
surfaces to fall into the hopper.
Because the filters are blasted
alternately at timed intervals,
operation of the dust collection
system is both continuous and
efficient.
Tailored to your process
The hoppers of Flexicon manual
dumping stations are available
in various configurations for simplified connection to pneumatic
conveyor lines, flexible screw
conveyors, and virtually
any process equipment.
All units are available in carbon
steel with durable industrial
finishes, or in stainless steel in
industrial or sanitary finishes.
The hoppers of Flexicon Bag Dump Stations are offered with outlets configured for: (left to right) direct connection to process equipment, flexible screw
conveyor charging adapters, rotary airlock valves with flow-through adapters,
and non-flow-through pick-up adapters for multiple conveying lines.
An automatic reverse-pulse
filter cleaning system employs
timer-activated solenoid valves
to release short blasts of
Two cartridge filters are accessed
easily by removing the interior
baffle, and replaced rapidly using
quick-disconnect fittings.
Explosion-Proof Bag Dump Station
This dust-free Bag Dump System integrates a receiving hopper, dust
collector, bag compactor and flexible screw conveyor on a caster-mounted
frame with hinged operator platform. An explosion-proof electrical system
allows the unit to handle flammable as well as hazardous and nonhazardous materials throughout the plant.
21
Drum Dumpers
Open or sealed transfer of solids from drums to process equipment
Flexicon "lift-and-seal" drum
dumpers (top right and bottom
left) and “open chute” drum
dumpers (bottom right) accommodate all popular drum sizes
and are available in carbon steel
with durable industrial finishes,
or in stainless steel with material
contact surfaces finished to
industrial, food or pharmaceutical
standards. All models can
discharge directly into process
equipment or into hoppers
equipped with outlets for connection to Flexicon flexible screw or
pneumatic conveyors, or to other
process equipment.
Lift-and-seal drum
dumpers eliminate dust
Flexicon lift-and-seal drum
dumpers enable you to load,
seal, tip and discharge drums
with no dusting, bringing a new
level of cleanliness and efficiency
to an age-old task. A hydraulic
lift automatically forms a dusttight seal between the drum lip
and the discharge cone. The
assembly is tipped hydraulically
causing the cone to mate with
the gasketted receiving ring that
is fitted to existing process
equipment or the lid of an
optional Flexicon hopper, eliminating the need for connecting
sleeves and clamps. (Optional
hopper shown with Flexicon
flexible screw conveyor adapter.
Also available with universal
flanged outlet or Flexicon
pneumatic pick-up adapter.)
Open chute drum
dumpers offer simplicity,
ease of cleaning
Flexicon open chute drum
dumpers offer an economical
method of discharging from
drums when dust generation is
not a concern. The drum lift
assembly is raised hydraulically
until material discharges from
the drum, down onto the chute,
and into a receiving vessel. The
smooth, wide-diameter product
chute allows unobstructed
discharge of free-flowing
materials as well as non-freeflowing products containing
Flexicon’s Bulk Filling System with High-Lift Drum Dumper allows drums to
be loaded at floor level, sealed against a discharge cone, elevated and tipped,
mating the cone spout to a receiver on the filling machine’s surge hopper lid.
The spout’s slide gate valve opens to fill the hopper with no dusting, while pails
are indexed, filled by weight, then conveyed to a second scale for check weighing.
22
large agglomerates. It is also fully
accessible and free of crevices,
allowing rapid, thorough cleaning. (Optional hopper shown
with Flexicon non-flow-through
pneumatic pick-up adapter. Also
available with universal flanged
outlet or Flexicon flexible screw
conveyor adapter.)
Weigh Batching and Blending Systems
Virtually any bulk material, from any upstream source, to any downstream destination
Whether you are sourcing
material from bulk bags, silos,
manual dumping stations,
process equipment or all of the
above, weigh batching one ingredient or 50, blending your
recipe, filling containers, and/or
delivering it to process vessels,
packaging lines, or any other
destination, Flexicon has the
comprehensive selection of
equipment you need for a total
weigh batching solution.
From individual loss-of-weight
bulk bag weigh batch dischargers to automated gain-in-weight
batching/blending systems
integrated with your upstream
and downstream equipment,
Flexicon offers you the entire
range of specialized equipment—
and the engineering talent—
required for a smooth start-up
and efficient performance.
Flexicon’s Self-Contained,
Gain-in-Weight Batching and
Blending System conveys bulk
ingredients from multiple upstream
sources, weigh-batches, blends and
discharges the material into a surge
hopper, and transports it to a downstream process. The system is
offered with Flexicon Flexible Screw
Conveyors (shown) or Flexicon
Pneumatic Conveyors.
Equally as crucial to your weigh
batching success is the proven
ability of Flexicon equipment to
move your material—at high
rates for fast batching cycles and
at steady dribble-feed rates for
highly accurate weighments—
and to deliver recipes with no
separation of blended materials
and no exposure to potential
contamination.
Whether your ingredients are
free-flowing pellets, powders that
pack, bridge or smear, products
that fluidize, or blends prone to
separation, Flexicon can move
them positively, weigh them
accurately, and deliver them in
prime condition.
This Automated Weigh Batching System conveys material from Flexicon bulk bag dischargers via Flexicon flexible screw conveyors to a weigh hopper mounted on load cells at mezzanine level. Weighed batches are automatically discharged through
a rotary airlock valve into a Flexicon pneumatic conveying system, transporting the pre-weighed batch to a mixer/blender.
23
Gain-in-Weight Batching Systems
Simple or sophisticated batch control
Flexicon Gain-in-Weight Batching
Systems convey bulk ingredients
mechanically or pneumatically
from any location to a central
receiving vessel which is mounted
on load cells. The receiving vessel can be a hopper positioned
above a blender, reactor, or other
process equipment, or it can be
the equipment itself.
When the batch sequence is
initiated by a manual start
button or automated signal,
a programmable controller
activates the first flexible screw
conveyor or rotary airlock valve
to begin loading the first
ingredient into the receiving
vessel at maximum feed rate.
Load cells transmit weight
gain information to the controller
which steps-down the feed rate
to dribble prior to reaching the
the target weight, for greater
accuracy. The controller stops
the flexible screw conveyor or
rotary airlock valve immediately
before the target weight is
reached to compensate for
material in-flight.
This Gain-in-Weight Batching System allows automated
weighing of a major ingredient supplied in bulk bags, and
a minor ingredient dumped manually. The central weigh
hopper’s load cells transmit weight gain information to a
controller that starts and stops the conveyors to weigh each
material in sequence, and actuates a slide gate valve to
discharge the weighed batch.
24
Flexicon mechanical (above) and pneumatic (below) Gain-in-Weight Batching Systems can
transport material from silos, manual dumping stations, process equipment, bulk bags, or any
other source to a weigh batching hopper, a blender, or other downstream equipment mounted
on load cells.
This turnkey, Gain-in-Weight Batching System conveys material from four Flexicon bulk bag
dischargers to a weigh hopper which discharges into a blender. During the blending operation,
a subsequent batch is being weighed by the hopper, thereby reducing cycle times. In this
case, blended batches are discharged directly into shipping containers.
Loss-of-Weight Batching Systems
Simple or sophisticated batch control
Flexicon bulk bag Loss-of-Weight
Batching Systems consist of a
Flexicon bulk bag discharger
mounted on load cells which
measure weight loss of each
discharger during the batching
cycle and transmit the information to a system controller.
The batch sequence is
initiated by a manual start
button or automated signal.
As the conveyor unloads
material at maximum feed
rate, the load cells transmit
loss-of-weight information to
the controller which reduces the
feed rate to dribble immediately
prior to stopping the flexible
screw conveyor or rotary airlock
valve once the target batch
weight has been discharged.
System software permits midbatch bag changes.
Multiple weigh batch
dischargers can each convey
a different ingredient to a
central discharge point such as
a hopper, blender, reactor, or
other process equipment.
Flexicon mechanical (above) and pneumatic (below) Loss-of-Weight Batching Systems
transport material from one or more bulk bags to a common hopper, blender, conveyor,
shipping container, or any process vessel.
Loss-of-Weight Batching Systems discharge one or more
bulk bags while weighing the material and conveying the
batch directly to a common hopper, blender, conveyor,
shipping container, or any process vessel—automatically
and accurately. Load cells transmit the amount of weight
lost to a controller, which stops the conveyor once the
target batch weight has been reached.
This Loss-of-Weight Batching System conveys material from two Flexicon bulk bag dischargers into a filter receiver which discharges into a blender. The manual bag dump
station allows the addition of pre-weighed minor ingredients to the batch.
25
Worldwide engineering, testing,
manufacturing and field support
required by governmental
and industry associations for
chemical, food, dairy and pharmaceutical applications—both
nationally and internationally.
Flexicon is an international
organization with administrative,
engineering and manufacturing
capabilities on four continents,
and an extensive worldwide
network of applications engineers, authorized representatives
and field support technicians to
serve you—a unique consolidation of bulk handling specialists
with hundreds of years of combined experience.
Testing facilities
Flexicon's design engineering
staff devises efficient solutions to
the most unusual problems with
highly custom equipment, basing
solutions on unique customer
requirements, not merely on
existing product line offerings.
This approach provides each
customer with the most efficient
solution to his or her individual
problem, and endows Flexicon
with a depth and breadth of bulk
handling experience unequalled
by any other comparable manufacturer in the world.
At the local level, this personnel
provides the knowledge and
resources needed to satisfy the
diverse requirements of individual process plants countryby-country, while providing the
worldwide infrastructure, longterm vision, stability and single
source capability required by
multi-national organizations.
An extensive research and development program continually sets
new standards for bulk handling
equipment performance with
entirely new designs, product
improvements and equipment
that complies with certifications
Flexicon’s worldwide testing facilities simulate full-size customer
equipment and systems, verify performance prior to fabrication,
demonstrate newly constructed equipment for visiting customers,
and study the performance of new designs.
Test lab equipment for pneumatic bulk handling systems includes
a comprehensive range of blowers, vacuum pumps, filter receivers,
cyclone separators, inlet/discharge adapters and valves, and conveyor
lines in a wide range of diameters and lengths, as well as bulk bag
dischargers, bulk bag fillers, manual dumping stations and other
equipment designed to interface with pneumatic conveyors.
Mechanical bulk handling test lab equipment includes flexible screw
conveyors in a comprehensive range of diameters, lengths and screw
configurations, as well as bulk bag dischargers, bulk bag fillers,
manual dumping stations and other equipment designed to interface
with mechanical conveyors.
26
Flexicon products are manufactured on four continents, and
marketed through an extensive network of representatives
throughout Europe, Australia, New Zealand, Southeast Asia,
Africa and North/Central/South America. For a Flexicon
representative near you visit:
USA
UNITED KINGDOM
SOUTH AFRICA
AUSTRALIA
FLEXICON CORPORATION
2400 Emrick Boulevard
Bethlehem, PA 18020-8006
USA
Tel: 1 610 814 2400
Fax: 1 610 814 0600
E-mail: sales@flexicon.com
FLEXICON EUROPE LIMITED
89 Lower Herne Road
Herne, Herne Bay
Kent CT6 7PH
United Kingdom
Tel: +44 (0)1227 374710
Fax: +44 (0)1227 365821
E-mail: sales@flexicon.co.uk
FLEXICON AFRICA (PTY) LTD.
P.O. Box 10450
Linton Grange
Port Elizabeth 6015
South Africa
Tel: +27 41 453 1871
Fax: +27 41 453 1670
E-mail: sales@flexicon.co.za
FLEXICON CORPORATION
(AUSTRALIA) PTY LIMITED
P.O. Box 111
Hornsby
NSW 2077
Australia
Tel: +61 (0)2 9482 4033
Fax: +61 (0)2 9482 4066
1 300 FLEXICON
1 300 353942
E-mail: sales@flexicon.com.au
T-0471
www.flexicon.com
®
©2005 Flexicon Corporation. FLEXICON Corporation has registrations and pending applications for the trademark FLEXICON throughout the world. Printed in USA
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