Separation
Equipment
Chapter
14
Centrifuges (CT) ................................................................................. 14-3
Dust Collectors (DC) .......................................................................... 14-6
Filters (F) ............................................................................................. 14-9
Separation Equipment (SE) ............................................................... 14-13
Thickeners (T) ..................................................................................... 14-15
Screens (VS) ........................................................................................ 14-16
G2 © ICARUS Corporation, 1998.
14-2 ICARUS Reference
© ICARUS Corporation, 1998. G2
Chapter 14: Separation Equipment
Centrifuges (CT)
Includes motor and drive unit.
Description
Type
Atmospheric suspended basket.
ATM SUSPEN
Material Selection: Default: *CS*
CS - Carbon steel
SS - Stainless steel
Driver Power: Range: 2 - 30 HP [1.5 - 22 KW]
Automatic batch filtering centrifuge to 60 INCHES [1520 MM].
BATCH-AUTO
Material Selection: Default: *CS*
CS
RBLCS
SS316
HASTC
- Carbon steel
- Rubber-lined CS
- SS316
- Hastelloy C
Diameter: Range: 24 - 60 INCHES [610 - 1,520 MM]
Capacity: Range: 3 - 30 CF [0.085 - 0.84 M3]
Batch bottom-suspended filtering centrifuge with diameter to
48 INCHES [1210 MM].
BATCH-BOTM
Material Selection: Default: *CS*
CS
- Carbon steel
SS
- Stainless steel
RBLCS - Rubber-lined CS
Diameter: Range: 20 - 48 INCHES [510 - 1,210 MM]
Batch bottom-driven centrifuge, top unloading, explosion-proof
motor with diameter to 56 INCHES [1420 MM].
TOP UNLOAD
Material Selection: Default: *CS*
CS
RBLCS
SS316
HASTC
- Carbon steel
- Rubber-lined carbon steel
- SS316
- Hastelloy C
Capacity: Range: 2 - 20 CF [0.06 - 0.56 M3]
Diameter: Range: 18 - 56 INCHES [460 - 1,420 MM]
Batch bottom-driven centrifuge, bottom unloading, fixed speed
hydraulic driver with diameter to 56 INCHES [1420 MM].
Mat’l of Construction: Default: *SS316*
Diameter: Range: 12 - 56 INCHES [305 - 1,420 MM]
G2 © ICARUS Corporation, 1998.
BOT-UNLOAD
14-3
14-4 ICARUS Reference
Centrifuges (CT) continued
Description
Type
Batch top-suspended filtering centrifuge with diameter to 50 INCHES
[1260 MM].
BATCH-TOP
Material Selection: Default: *CS*
CS
- Carbon steel
SS
- Stainless steel
RBLCS - Rubber-lined carbon steel
Diameter: Range: 20 - 50 INCHES [510 - 1,260 MM]
High speed disk clarifier centrifuge, stack of rotating conical disks to
shorten sedimentation path, batch removal of solids and diameter
to 20 INCHES [500 MM].
DISK
Mat’l of Construction: Default: *CS*
Diameter: Range: 10 - 20 INCHES [250 - 500 MM]
Reciprocating conveyor, with continuous filtering centrifuge for
free-draining granular solids, horizontal bowl, removal by
reciprocating piston and diameter to 50 INCHES [1250 MM].
RECIP-CONV
Material Selection: Default: *CS* (Carbon steel)
Diameter: Range: 15 - 50 INCHES [375 - 1,250 MM]
Mat’l of Construction: SS (Stainless steel)
Diameter: Range: 20 - 50 INCHES [500 - 1,250 MM]
Scroll conveyor with continuous filtering centrifuge, solids removal
by scroll conveyor and diameter to 75 INCHES [1875 MM].
SCROLL-CON
Material Selection: Default: *CS* (Carbon steel)
Diameter: Range: 15 - 75 INCHES [375 - 1,875 MM
Mat’l of Construction: SS (Stainless steel)
Diameter: Range: 15 - 50 INCHES [375 - 1,250 MM]
Solid bowl with diameter to 54 INCHES [1370 MM].
SOLID BOWL
Material Selection: Default: *CS*
CS
- Carbon steel
SS316 - SS316
Inside Diameter: Range: 18 - 54 INCHES [460 - 1,370 MM]
Inside Length: Range: 28 - 132 INCHES [720 - 3,350 MM]
© ICARUS Corporation, 1998. G2
Chapter 14: Separation Equipment
Centrifuges (CT) continued
Description
Type
Screen bowl with diameter to 54 INCHES [1370 MM].
SCREEN-BWL
Material Selection: Default: *CS*
CS
- Carbon steel
SS316 - SS316
Inside Diameter: Range: 18 - 54 INCHES [460 - 1,370 MM]
Inside Length: Range: 28 - 132 INCHES [720 - 3,350 MM]
High speed tubular sedimentation centrifuge, bottom entry,
batch solids removal and diameter to 6 INCHES [150 MM].
TUBULAR
The following rates are shown to assist in selecting the proper
equipment item, however, rates outside this range may be input.
TPH = 110-325, TON/H = 91-263.
Mat’l of Construction: Default: *CS* (Carbon steel)
Diameter: Range: 4 - 6 INCHES [105 - 150 MM]
Continuous filtration vibratory centrifuge with solids removal by
vibratory screen for dewatering of coarse solids with screen
diameter to 56 INCHES [1420 MM].
VIBRATORY
Mat’l of Construction: Default: *CS* (Carbon steel)
Screen Diameter: Range: 48 - 56 INCHES [1,220 - 1,420 MM]
Inverting filter centrifuge.
Mat’l of Construction: Default: *SS316*
Diameter: Range: 12 - 52 INCHES [305 - 1,320 MM]
Capacity: Range: 0.2 - 12 CF [0.0056 - 0.34 M3]
G2 © ICARUS Corporation, 1998.
INVERTING
14-5
14-6 ICARUS Reference
Dust Collectors (DC)
Description
Type
Centrifugal precipitator includes driver and interconnecting piping
with flow rate to 10,000 CFM [16,990 M3].
CENTRF-PRE
Mat’l of Construction: Default: *CS*
Flow Rate: Range: 500 - 10,000 CFM [850 - 16,990 M3/H]
Cloth bay baghouse includes hopper bottom, airlocks and electrical
motor shakers. Cloth area to 12,000 SF [1,110 M2].
CLOTH BAY
Fabric filters are used for high efficiency 99+%, cleaning of small
particles (less than one micron). Fabric filters are an excellent
choice where feed conditions may vary because efficiency is
unaffected by varying flowrates, particulate loading, or particle size
distribution. Baghouses are not a good choice if the gas contains
free moisture or if condensation will occur in the baghouse.
Baghouses are limited to a maximum temperature of 550 DEG F.
Shaker type filters are generally used for:
• Low cfm
• Low particulate loading
• Intermittent operation.
Pulse type units are used for:
• Large CFM
• High particulate loading
• Continuous operation.
The “cloth bay” dust collector is commonly called a baghouse or
fabric filter. Dust laden gas is ducted into a rectangular (small units
may be cylindrical) enclosure. The dirty gas must pass through cloth
tubes or bags to get out of the baghouse. Baghouses are
characterized by the method used to clean the filter bags. Two
options are available - shaker and pulse type cleaning, which are a
function of the air-to-media ratio. The air-to-media ratio, also called
the air-to-cloth ratio, is the acfm of gas passing through one square
foot of filter fabric. Shaker type baghouses are limited to
air-to-media ratios of less than 4:1. Dirty gas flows from the inside
to the outside of the filter bags in a shaker type unit. In order to
remove the collected dust, the flow of dirty gas is stopped and an
electric motor shakes the bags.
Pulse type units have their filter bags supported over a cylindrical
wire cage and dirty gas flows from the outside of the bags to the
inside. Pulse type units operate with air-to-cloth ratios from
4:1 to 15:1. Filter bags are cleaned by injecting a pulse of
compressed air into the bags being cleaned. The pulse of air
expands the bags violently and throws off the dust collected on the
bag’s outside surface. The pulse type baghouse does not have to be
taken off-line for cleaning.
- continued -
© ICARUS Corporation, 1998. G2
Chapter 14: Separation Equipment
Dust Collectors (DC) continued
Description
Type
CLOTH BAY - continued
With both types of baghouse, the dust is collected in hopper bottoms
and removed through an airlock.
Today, most filter bags are manufactured from synthetic fibers. The
materials in most common use are acrylics, nylon 6, nylon 66,
“nomex” nylon, “Teflon,” polypropylene and polyesters
(e.g., “dacron”). The baghouses in the system have polyester bags.
Polyester has moderate all-around chemical resistance and good
strength and abrasion resistance. Polyester may be used at a
minimum continuous service temperature of 300 DEG F.
Mat’l of Construction: Default: *CS* (Carbon steel)
Surface Area: Range: 100 - 12,000 SF [10 - 1,110 M2]
Flow Rate: Max: 48,000 CFM [81,550 M3/H]
Air/Media Ratio: Range: 1 - 4 CFM/SF [19 - 70 M2/H/M2]
Air Temperature: Default: *68* DEG F [*20* DEG C]
Cyclone for gas/solid separation. Diameter to 60 INCHES [1,500 MM].
Collection efficiency varies with particle size.
Particle Size
Efficiency
< 5m
5 - 20 m
50 - 90%
80 - 95%
From the table above we see that cyclones are a good choice for
medium size particles. Cyclones can be fabricated from a wide
variety of internals and can also be refractory lined. Therefore
cyclones can be used for the removal of particles from corrosive
and/or high temperature (1,800 DEG F) gas streams.
The cyclone has a cylindrically shaped upper section and long
tapering conical lower section. Dirty gas enters the top section
through a tangential nozzle. This imparts a swirling motion to the
gas. The entrained particles are thrown to the wall of the cyclone by
centrifugal force. The particles descend by gravity along the wall to
the bottom of the cone where they are discharged. The gas spirals
downward to the bottom of the cone then reverses direction and
moves upward to the gas exit at the top center of the cyclone.
Increasing the diameter of a cyclone increases its capacity but
capacity of a single cyclone is limited to about 50,000 cfm. When
larger flowrates must be handled several cyclones are arranged in
parallel.
Material Selection: Default: *CS*
CS - Carbon steel
SS - Stainless steel
Diameter: Range: 3 - 60 INCHES [75 - 1,500 MM]
Flow Rate: Range: 70 - 40,000 CFM [120 - 67,900 M2/H
Air Temperature: Default: *68* DEG F [*20* DEG C]
G2 © ICARUS Corporation, 1998.
CYCLONE
14-7
14-8 ICARUS Reference
Dust Collectors (DC) continued
Description
Type
Multiple cyclone with flow rate to 20,000 CFM [33,980 M3/H].
MULT-CYCLO
Mat’l of Construction: Default: *CS* (Carbon steel)
Flow Rate: Range: 900 - 20,000 CFM [1,530 - 33,980 M2/H]
Precipitator with high voltage to 20,000 CFM [33,980 M3/H].
ELC-H-VOLT
Mat’l of Construction: Default: *CS* (Carbon steel)
Flow Rate: Range: 7,000 - 20,000 CFM [11,900 - 33,980 M3/H]
Precipitator with low voltage to 20,000 CFM [33,980 M3/H].
ELC-L-VOLT
Mat’l of Construction: Default: *CS* (Carbon steel)
Flow Rate: Range: 600 - 20,000 CFM [1,020 - 33,980 M3/H]
Washers with flow rate to 20,000 CFM [33,980 M3/H].
WASHERS
Mat’l of Construction: Default: *CS*
Flow Rate: Range: 600 - 20,000 CFM [1,020 -33,980 M3/H]
Pulse-type shakers with cloth area to 6,000 SF [557 M2]. Compressor
for air pulse injection not included.
PULSE SHKR
Mat’l of Construction: Default: *CS* (Carbon steel)
Surface Area: Range: 100 - 6,000 SF [10 - 557 M2]
Flow Rate: Max: 90,000 CFM [152,900 M3/H]
Air/Media Ratio: Range: 5 - 15 CFM/SF [91 - 270 M3/H/M2]
Air Temperature: Default: *68* DEG F [*20* DEG C]
© ICARUS Corporation, 1998. G2
Chapter 14: Separation Equipment
Filters (F)
Description
Type
Cartridge filter to 1,200 GPM [75 L/S] with 5 micron cotton filter.
CARTRIDGE
Cartridge filters are generally used as a final filtering element for the
removal of small particles, such as pipe scale, down to 10 microns
in size from a liquid stream containing a low concentration of
these solids.
A cartridge filter consists of a tank containing one or more filter
elements or cartridges which are tubes of wound natural or synthetic
fibers. Liquid flows through the cartridges and the suspended solids
are trapped by the fibers. As the filter gets dirtier, pressure drop
builds to a point where the cartridges must be replaced. The
cartridges are disposable. They are not cleaned and reused.
Material Selection: Default: *CS*
CS - Carbon steel
SS - Stainless steel
Flow Rate: Range: 30 - 1,200 GPM [1.9 - 75 L/S]
Pressure leaf-dry filter with leaf area to 600 SF [55 M2].
LEAF-DRY
Material Selection: Default: *CS*
CS
- Carbon steel
SS316 - SS316
Surface Area: Range: 50 -600 SF [4.7 - 55 M2]
Pressure leaf-wet filter with leaf area to 600 SF [55 M2].
LEAF-WET
Material Selection: Default: *CS*
CS
- Carbon steel
SS316 - SS316
Surface Area: Range: 50 - 600 SF [4.7 - 55 M2]
Automatic plate and frame filter with capacity to 50 CF [1.4 M3].
Material Selection: Default: *RBLCS*
RBLCS - Rubber-line CS
PPLCS - Polyprop. lined CS
SS316 - SS316
Frame Capacity: Range: 10 - 50 CF [0.3 - 1.4 M3]
Plate Size: Range: 36 - 48 INCHES [900 - 1,200 MM];
Default: 48 INCHES [1,2000 MM]
G2 © ICARUS Corporation, 1998.
PLATE+FRAM
14-9
14-10 ICARUS Reference
Filters (F) continued
Description
Type
Disk Filter. General Features: The filter is a vacuum type (from drop
leg), consisting of segmented disks with polypropylene filter bags,
suction valve, vat (optional) with stiffeners, discharge trough, drive
motor, base plate, rotor and bearing support. The following
variations are available.
ROTY-DISK
Standard Disk Filter (for general chemical industry) — This
filter additionally includes a paddle agitator for the vat, worm
and gear reducer for filter drum, air blow discharge mechanism
and cleaning showers.
Thickener (as in pulp and paper mills) — includes the general
features and in addition, has repulper, flushing pipe, hood with
mounting flange, inspection and service doors, knock off and
cleaning showers (including nozzles, header, hoses, valves). The
filtrate valve (double solution type) and the drive reducer is a
helical gear.
Material: Default: *CS*
CS
SS316
RBLCS
EPLCS
- Carbon steel
- SS316
- Rubber lined CS
- Epoxy lined CS
Application: Default: *MD RATE*
LO RATE - Low filtration rate
MD RATE - Medium filtration rate
HI RATE
- High filtration rate
THCKNR - Used as a thickening device
Capacity: Enter capacity or surface area.
Surface Area: Enter capacity or surface area.
Range: 100 - 900 SF [10 - 80 M2]
Solids Handling Rate: Default: 0.30 TPD/SF [0.12 TPH/lM2]
No. of Disks: Min: 1; Default: *3*.
Liquid Flow Rate: Flowrate of feed stream
Consistency - AD %: Percent of solids in the feed stream.
Range: 0.50 - 5.00; Default: *15*.
Tank/Vat Material: Default: *NONE*
NONE - No vat will be provided
CS
- Carbon steel vat
SS316 - Stainless steel vat
© ICARUS Corporation, 1998. G2
Chapter 14: Separation Equipment 14-11
Filters (F) continued
Description
Type
Drum Filter. General Features: The filter is a vacuum type (from drop
leg), multi compartment cylinder shell with internal filtrate piping
with polypropylene filter cloth, feed box with inlet and drain nozzles,
suction valve, rake-agitated vat (optional) with stiffeners,
discharge trough, driver consisting of rotor, drive motor base plate,
worm, gear reducer and two pillow block bearing with supports. In
addition to the standard filter, the following variations are available.
ROTY-DRUM
Thickener (as in pulp and paper mills) — includes the above general
features and, in addition, has repulper, flushing pipe, hood with
mounting flange, inspection and service doors, knock off and
cleaning showers (including nozzles, header, hoses, valves).
The distinguishing features are air-assisted scraper discharge,
filtrate valve (double solution type), steel filter cloth and the drive
reducer is a helical gear.
Brown Stock and Bleach Washers — in addition to the thickener
features, the washers have multiple showers for washing.
Lime Mud Filter and Dregs Washer — essentially includes the same
general features as the general washer, but with pre-coat for
easier filtration.
Material: Default: *CS*
CS
SS316
RBLCS
EPLCS
- Carbon steel
- SS316
- Rubber lined CS
- Epoxy lined CS
Application: Default: *MD RATE*
LO RATE - Low filtration rate
MD RATE - Medium filtration rate
HI RATE
- High filtration rate
THCKNR - Used as a thickening device
Capacity: Enter capacity or surface area.
Surface Area: Enter capacity or surface area.
Range: 100 - 2,000 SF [10 - 185 M2]
Solids Handling Rate: Default: 0.50 TPD/SF [0.20 TPH/lM2]
No. of Disks: Min: 1; Default: *3*.
Liquid Flow Rate: Flowrate of feed stream
Consistency - AD %: Percent of solids in the feed stream.
Range: 0.50 - 5.00; Default: *20*.
Tank/Vat Material: Default: *NONE*
NONE - No vat will be provided
CS
- Carbon steel vat
SS316 - Stainless steel vat
G2 © ICARUS Corporation, 1998.
14-12 ICARUS Reference
Filters (F) continued
Description
Type
Sewage filter with area to 600 SF [55 M2].
SEWAGE
Mat’l of Construction: Default: *CS*
Surface Area: Range: 100 - 600 SF [10 - 55 M2]
Sparkler with area to 110 SF [10 M2].
SPARKLER
Material Selection: Default: *SS316*
SS316 - SS316
RBLCS - Rubber lined CS
Surface Area: Range: 8 - 110 SF [0.75 - 10.2 M2]
Volume: Range: 0.5 - 15 CF [0.02 - 0.4 M3]
Diameter: Range: 18 - 33 INCHES [450 - 825 MM]
Tubular fabric filters (bank of three) with automatic or manual
cleaning/backwashing. Flow rate to 3400 GPM [210 L/S].
TUBULAR
For filtering liquid streams such as cooling tower water and tank
car loading lines. The wide selection of filter media available allows
particles from 1 micron to 2,000 microns in size to be removed.
Because tubular filters can be backwashed, liquid streams with high
solids concentrations can be handled.
Material Selection: Default: *CS*
CS - Carbon steel
SS - Stainless steel
Flow Rate: Range: 100 - 3,400 GPM [6.5 - 210 L/S]
Mesh Size: Range: 60 - 700 MESH
Operation: Automatic cleaning and backwashing option
available. Default: *NONE*
NONE - No auto operation
AUTO - Auto clan/backwash
Scroll discharge centrifugal filter for dewatering fine solids
(0 to 28 mesh) or medium coarse solids (.375 INCH [10 MM]
to 28 mesh).
SCROLL
Mat’l of Construction: Default: *CS* (Carbon steel)
Feed Size:
FINE
- Fine solids
MEDIUM - Medium solids
White water filter including centrifugal screening basket,
internal showers and distributors.
WHITEWATER
Flow Rate: Maximum flow varies: 4750 GPM [300 L/S] at 0.001
consistency, 2500 [157] at 0.1.
Consistency - Ad %: Range: 0.001 to 0.1; Default: 0.1
© ICARUS Corporation, 1998. G2
Chapter 14: Separation Equipment 14-13
Separation Equipment (SE)
Description
Type
Water-only cyclones for separation of light and heavy minerals or
particle size separation. Cyclones may be linear or radial
manifold and may be lined with replaceable liners. Cyclone
diameter to 30 INCHES [760 MM].
WATER-CYCL
Material Selection: Default: *CS*
CS
- Carbon steel
CERML - Light ceramic liner
CERMM - Medium ceramic liner
CERMH - Heavy ceramic liner
CERMV - Very heavy ceramic liner
ABRPL - Abrasive resistant plate
REPRB - Replaceable rubber lining
LS304
- Replaceable SS304 lining
LS316
- Replaceable SS316 lining
Diameter: Diameter is for individual cyclone,
group manifolding - linear or radial. Range: 4 - 30 INCHES
[105 - 760 MM]
Configuration: Default: *LIN*
LIN - Linear manifold
RAD - Radial manifold
Oil-water separator - API type.
Mat’l of Construction: Default: *CS* (Carbon steel)
Flow Rate: Maximum flow (see Configuration) less Specific
Gravity increase. For example, for BOX 135 GPM [8.5 L/S]
at 0.965. Min: 25 GPM [16 L/S]
Diameter or Width: Range: 4 - 8 FEET [1.22 - 2.40 M]
Length: Range: 20 - 40 FEET [6.1 - 12.0 M]
Configuration: Default: *BOX*
RND - Round- max flow 545 GPM [34 L/S] at .85 SG
BOX - Box - max flow 700 GPM [44 L/S] at .875 SG
Oil Specific Gravity: Range” 0.85 - 0.97; Default: *0.92*
G2 © ICARUS Corporation, 1998.
OIL-WATER
14-14 ICARUS Reference
Separation Equipment (SE) continued
Description
Type
Centrifugal cleaners/wet cyclones used for removal of contaminants
in fluids using centrifugal force. Includes the body, supporting legs,
two reject valves per cyclone, reject chamber/grit pot, automatic or
manual control of rejected materials and a header for multiple
cyclones. Separate material specifications are allowed for the top
and conical section. Sizing and scaling features allow contaminants
to be separated by size and density/type. Linear or radial
configurations are available.
PULP STOCK
Main Section Mat’l: Default: *SS316*
SS316
316L
CS
CERML
CERMM
CERMH
CERMV
ABRPL
REPRB
LS304
LS316
- SS316
- 316 L
- Carbon steel
- Light ceramic liner on CS
- Medium ceramic liner on CS
- Heavy ceramic liner on CS
- Very heavy ceramic liner on CS
- Abrasion resistant plate
- Replaceable rubber liner on CS
- Replaceable SS304 on CS
- Replaceable SS316 on CS
Cyclone Diameter: Enter diameter or capacity.
Range: 4 - 30 INCHES [100 - 750 MM]
Capacity: Enter diameter or capacity.
Application Symbol: Default: *AUTO*
AUTO - Automatic cleaner discharge
MANL - Manual cleaner discharge
Configuration: Default: *LIN*
LIN - Linear manifold
RAD - Radial manifold
No. Cyclone/Manifold: Default: *1*
Cone Section Mat’l: Default: *SS316*
SS316
- SS316
316L
- 316 L
CS
- Carbon steel
CERML - Light ceramic liner on CS
CERMM - Medium ceramic liner on CS
CERMH - Heavy ceramic liner on CS
CERMV - Very heavy ceramic liner on CS
CERMC - Ceramic
ABRPL - Abrasion resistant plate
REPRB - Replaceable rubber liner on CS
LS304
- Replaceable SS304 on CS
LS316
- Replaceable SS316 on CS
Containment Size: Default: *MEDIUM*
SMALL - Small debris, less then 40 microns
MEDIUM - Medium debris, 40 - 400 microns
LARGE - Large debris, 400 - 4000 microns
Contam. Specif. Grav.: Default: *MEDIUM*
LIGHT
- Light weight debris: asphalt, sand, ink
MEDIUM - Medium weight debris: clay, heavy sand
HEAVY - Heavy weight debris: metal clips, foil
VHEAVY - Very heavy debris: nuts, bolts, rock
© ICARUS Corporation, 1998. G2
Chapter 14: Separation Equipment 14-15
Thickeners (T)
Description
Type
Thickeners are used in many solid/liquid separation processes and
consist of a slow-moving rake mechanism rotating in a tank.
The unit includes feed well, bridge, drive head (with optional
overload alarm system), and a drive consisting of worm, gear and
motor. An optional flocculator mechanism with flocculation
chamber, paddles and flocculator drive with reduction gear and
motor can be included. Additional storage capacity for the tank can
be specified for special applications such as green liquor
clarification, white liquor clarification or lime mud washing; as
used in paper mill operations. If only a thickener mechanism is
needed, the tank can be excluded.
THICKENER
Application Symbol: Default: *STANDARD*
STANDARD
PRM-ETP
SEC-ETP
GRN-LQ
WHITE-LQ
LIMMUD
- Standard thickener/clarifier
- Primary clarifier usually for effluent
- Secondary clarifier usually for effluent
- Green liquor clarifier for pulp/paper
- White liquor clarifier for pulp/paper
- Lime mud washer for pulp and paper mills
Rake Material: Default: *CS*
CS
- Carbon steel
SS304 - SS304
SS316 - SS316
MONEL - Monel
RUBCV - Rubber covered CS
Tank/VAT Material: Tank material required to obtain tank cost,
leave blank for thickener mechanism only.
CS
- Carbon steel
SS304
- SS304
SS316
- SS316
MONEL - Monel
RUBCV - Rubber covered CS
Diameter: Enter tank capacity or tank dimensions.
Range: 9.5 - 400 FEET [3.0 - 12.0 M]
Height: Enter tank capacity or tank dimensions.
Capacity: Enter tank capacity or tank dimensions.
Additional Capacity: Extra storage in addition to basic tank
capability. Default: *0.0* GALLONS [*0.0 M3].
Flocculator Required: Default: *NO*
NO - No flocculation required
YES - Flocculator mechanism required
Bridge Type: Default: *FULL*
FULL
- Full length bridge 100 FEET [30 M] maximum
SEMI
- Semi-bridge for 100 FEET [30 M] diameter
TRCTN - Traction type clarifier on semi-bridge
Drive Heat Type: Default: *DH-STD*
DH-STD - Standard drive head to 30 FEET [9 M] diameter
DH-HD - Heavy duty drive - large diameter, thick sludge
DH-HDA - Heavy duty, overload alarm, lifting device
Design Temperature: Default: 190 DEG F [88 DEG C] for
green liquor; else 68 DEG F [20 DEG C].
Operating Temp.: Default: Design temperature.
% All. for Internals: Specify an allowance for internals as a
percent of basic mechanism weight. Default: *0.0*
Base Mat’l Thickness: Base material thickness including
corrosion allowance.
Corrosion Allowance: Default: 0.125 INCHES [3 MM] for CS,
0.0 for other materials.
Number of Manholes: Default: *1*
Manhole Diameter: Max: 480 INCHES [1,200 MM];
Default: *18* INCHES [*450* MM].
G2 © ICARUS Corporation, 1998.
14-16 ICARUS Reference
Screens (VS)
Rectangular, circular.
Description
Type
Rectangular single deck, open or enclosed.
Rectangular double deck, open or enclosed.
Rectangular triple deck, open or enclosed.
ONE DECK
TWO DECK
THREE DECK
Mat’l of Construction: Default: *CS* (Carbon steel)
Length: Range: 6 - 24 FEET [2.0 - 7.25 M]
Width: Range: 3 - 8 FEET [1.0 - 2.25 M]
Configuration: Default: *OPEN*
OPEN
- No duct enclosure
ENCLOS - Dust enclosure required
Rectangular hummer-type for fine separation; 1, 2 or 3 decks.
HUMMER
Material Selection: Default: *CS*
CS - Carbon steel
SS - Stainless steel
Area: Range: 10 - 80 SF [1.0 - 7.4 M2]
Number of Decks: Range: 1 - 3
Circular single deck.
Circular double deck.
Circular triple deck.
SIFTER-1
SIFTER-2
SIFTER-3
Material Selection: Default: *CS*
CS
- Carbon steel
SS304 - SS304
SS316 - SS316
Diameter: Range: 18 - 60 INCHES [450 - 1,5000 MM]
Area: Range: 1.5 - 18 SF [0.2 - 1.7 M2]
© ICARUS Corporation, 1998. G2
Chapter 14: Separation Equipment 14-17
Screens (VS) continued
Description
Type
Pressure screen used for fine screening of contaminants in a paper mill.
Includes shell for screen basket housing, rotor, foil blades, water
lubricated packing box with packing seals, V-belt drive with belts,
metal guard and motor.
PRESSURE
Basket Material: Default: *SS316*
CS
- Carbon steel
SS304 - SS304
SS316 - SS316
Casing Material: Default: *SS316*
CS
- Carbon steel
SS304 - SS304
SS316 - SS316
Hydraulic Capacity: Enter capacity or diameter and length.
Basket Diameter: Enter capacity or diameter and length.
Min: 60 INCHES [150 MM]
Basket Length: Enter capacity or diameter and length.
Min: 60 INCHES [150 MM]
Driver Speed: Max: 3,6000 RPM; Default: *1,800* RPM
Design Press. - Gauge: Default: *15* PSIG [*150* MM]
Seal Type: Default: *MECH*
PACK - Packing
MECH - Mechanical seal
Low consistency bow screen is used for fiber collection in a paper mill.
The unit consists of a screen surface mounted on a frame curvilinear
in shape, with inlet nozzle, discharge nozzle(s) and a collection
chamber. The automatic feature includes solenoids, timers and an
air cylinder for back-flushing and cleaning.
LD STOCK
Screen Material: Default: *SS*
CS - Carbon steel
SS - Stainless steel
Capacity: Enter capacity or screen surface area.
Surface Area: Enter capacity or screen surface area.
Frame Material: Default: *CS*
CS - Carbon steel
SS - Stainless steel
Consistency - AD %: Percent of solids in the feed stream.
0.60 - 2.00; Default: *0.80*
Mechanical bar screens are the first stage of screening used in an
effluent treatment system. These are wide mesh screens made from
metal rods/flats welded onto a frame.
Screen Material: Default: *CS*
CS - Carbon steel
SS - Stainless steel
Capacity: Enter capacity or screen surface area.
Surface Area: Enter capacity or screen surface area.
G2 © ICARUS Corporation, 1998.
BAR
14-18 ICARUS Reference
© ICARUS Corporation, 1998. G2