MOD 1 CAP 3 Sepax Separator

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■ High efficiency

■ Low initial and maintenance costs

■ Highly adaptable and versatile

■ Feed system extracts nibs and reduces wear

SEPAX Separator



F.L.Smidth is the leading supplier of separa-

tors to the world’s cement industry, provid-

ing various types of high-efficiency separa-

tors for a wide range of applications.

Decadesof k now-how in high-effi ciency

separation enablesF.L.Smidth to supply the

most suitable separator for almost any

application. The SEPA X concept – intro-

duced with the original SEPAX separator

and later adopted for separators of derived

design - has proved hi ghly successful i n the

cement industry.

Low initial costsThe simple and space-saving design of the

SEPA X mak es it an economi cal investment.

The separator is fi tted wi thin a self-support-

ing shell structure, and the entire separator

unit with cyclones is supported by one ring-

shaped support only. Reducer and motor

are placed in line with the bearing housing,

forming a compact and rigid drive-line unit.

Finally, the SEPAX has one feed point placed

at a low level, minimising the height of the

separator feed elevator and simplifying the

layout.

The SEPAX t op seal pri nciple:

1 Air flow across rotor (1) is limited by n arrow gaps (2)

2 Reduced air flow across the rotor top, fitted wit h

deflector wi ngs (3), practi cally elim inat es passage of

coarse material t o th e fines outlet (4)

3 Coarse material that is inclined to pass in a ballistic

curve (5) across the r otor is intercepted by t he

chromium carbide protected seal ring (6)

Low initial cost

• Self-supporting shell

structure

• Standardrangedriveparts• One support for the

complete separator

• One feed point in low

position

• Most of the ducting

integrated

Low operating costs

• High-efficiencyseparation

• Highly effective nibs

extraction minimises

clogging of mill grates,

thus enabling long-

lastingfull millcapacity

Low maintenance costs

• Wear protection selected

for cost efficiency and

based on experience

• Automatic grease lubri-

cation with enclosed

refill system

• Practically eliminated

nibs recirculation reduces

maintenance work and

downtime caused by

clogged mill grates.

• Designed to enable easy

access for inspection and

replacementof compo-

nents

Highly flexible and versa-

tile. Adaptable to a wide

range of grinding and dry-ing systems such as

• All cement grinding ball

mill systems

• Fully or semi air-swept

raw grinding ball mills

• Flash driers

Main features

M

I L L

S Y S T E

M

S

6 6

5 1

2 2

7

3

4

Parallel flow th roug h rot or

for maxim um equality, i.e.:

sharpest possible separati on

Rotor top principle

Guide vane wit h

wear p la te

Wear plate:

chromium carbide v - partic le,

re la t ive to ro to r

v - partic le, relative to stator

v - ro to r

SEPAX ro tor and

guide vane detail



Flexible and versatileThe SEPA X is designed to be equipped with

drives ranging from low power drives for

raw grinding to pow erful drivesfor the

finest grinding whi le still uti lising the full

design air flow.

This ensuresmaximum effi ciency regard-

less of the end product quali ty specifi ed.

The SEPAX can be equipped w ith separa-

tor-supported cyclonesor stand-alone

cyclones for the collection of fines.

The feed concept is based on the material

being suspended in the vertical air flow

through the riser duct. This makes the

SEPA X highly adaptable to variousraw

grinding applications. C onsequently, the

separator can be integrated into the mill

venting system, in the case of fully or semi

air-swept m ills, or installed on top of a flash

dryer that formsthe riser duct leading up to

the SEPAX.

Low operating costsThe SEPA X is very efficient in operation and

cutsspecifi c energy consumpti on to a mini-

mum, while maintaining maximum output.

A highly effective system for removal of

worn grinding media from the mill dis-

charge material meansless clogging of

diaphragms. This optimises mill performance

and enableslong-term continuousoperation.

Low maintenance costsThe SEPAX is designed to be easily service-

able. Worn and broken grinding media are

not recycled, which helps to save mainte-nance work on the mill grate plates. The

removal of nibs from the separator feed

reducesthe wear on crit ical separator parts.

Easily accessible and serviceable wear pro-

tection i s fi tted where appropriate and the

bearing unit can easily be replaced.

SEPAX system w ith b ag filter f or collecti on of fines:

This system ensures maximum product cooling.

SEPAX system wi th cyclones

for collection o f fines:

Lowest initia l and operating

costs. Recuperat ion of heat

enhances drying of wet

slag, puzzolana or ot her

additives.

SEPAX system

fo r raw gr ind ing

installation,

suitably

in teg ra ted in to

the mi l l ven t l ine .

Finishedproduct

New feed

Nibsdisposal

Mill product

Reject flow

Finishedproduct

Reject flow

Mill product

New feed

Finishedproduct

Nibs disposal

Mill product

Reject flow

New feed



A ir outlet

Flexible coupling

M otor

Reducer

Rotor

Reject collecting guide vanes

Planetary separator supported cyclone

Ring shaped support

Fine material outlet

Reject outlet cone valve

Feed point

Pneumatic unloading valve

Nibs disposal container

1 10 100

Particle size, micron

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

d7 5x 50

d 25

P e r c e n t a g e

o f f e e d r e j e c t e d

Tromp curve

The tromp curve indicating the per-

centage of feed rejected in relation

to part ic le size has the fol lowi ng

characteristics:

The cut size, x50, expresses the exact

partic le size at which the quant it ies

of fine and coarse material are equal.

The by-pass value, , expresses the propor t ion o f separato r feed tha t

passes through the separator

unp rocessed and leaves it as coarse

material.

The sharpness facto r , = d25 /d75 ,

expresses the inclination of the

Tromp curve and th us the sharpness

of th e separation.

1

2

3

5

7

9

8

1

2

3

4

5

6

7

8

9

10

11

12

13

11

12

13

10

6

4



Densit Wearcast 2000The material isa 30 mm t hick cement

bound composition containing 55% hard

(9 M ohs) grainsof corundum (Al2O 3).

Densit W earcast is easy to install and repai r.

It has been tested to outlast basalt by a

factor of 1.3 when exposed to sandblasting

at various inclinations.

Hardox 400This is a world-know n, abrasion resistant,

weldable steel plate, which is through-

hardened to more than 360 HB and is

recognised for its superior abrasion resist-

ance properties.

Chromium compoundwear plate

This material isa m ild steel plate with a

thickness of 4 to 8 m m on to which a

4 - 5 mm layer of hardfacing is welded. The

hardfacing consistsof primary chromium

carbides in a eutectic matrix wi th eutectic

chromium carbides. T he hardness of the

matrix reaches 600-750 HV, the grains 1400

HV. The temperature limit is 400 deg C .

High carbon steelThis is a low cost and highly versatile mate-

rial which is used in placeswhere moderate

wear occurs.

Mild Steel

Wear Protection



Data in this brochure isi ntended for preliminaryproject planning only. M anufacturer reservesthe right to modifyequipment detailsand/or specificationswithout notice.

USAF.L.Smidt h Inc.

2040 Avenue C

Beth lehem , PA 18017-2188

Tel: + 1 610-264-6011

Tel: + 1 800-523-9482

Fax: + 1 610-264-6170

E-mail: info@fl smidth.com

INDIAFuller India Limited

Capita l Tow ers

180, Kodamba kkam High Road

Nungambakkam

Chennai 600 034

Tel: + 91 44-827-6030/8228623

Fax: + 91 44-827-9393

E-mail: fi l@fullerindia .co.in

DENMARK F.L.Sm idt h A/S

Vigerslev Allé 77

DK-2500 Valb y

Copenhagen

Tel: + 45 36 18 10 00

Fax: + 45 36 30 18 20

E-mail: info@fl smidth.com

www.flsmidth.com

Up-to-date addressesof w orldwidesubsidiari esand salesoffi cesareavailable from our website

0 1 - 0

2 - 2

5 1

G r a m s t r u p D e s i g n A p S

Dimensions and characteristics

D

C C

E

A 2

A 1

B B

190 7.3 3108 N.A. 5704 N.A. 1900 N.A.

212 10.0 3500 6467 2120

236 13.5 3933 7296 2360

250 15.7 4189 3754 7772 3040 2500 840

265 18.3 4460 4004 8285 3258 2650 900

280 21.1 4736 4262 8792 3492 2800 965

300 25.1 5102 4608 9468 3800 3000 1050

315 28.3 5376 4862 9975 4036 3150 1115335 32.8 5746 5213 10647 4344 3350 1200

355

375 42.9 6485 5907 11989 4976 3750 1375

400 49.9 6947 6342 12822 5374 4000 1485

N.A. N.A. N.A.

N.A. N.A. N.A.

37.7 6115 5558 11319 4668 3550 1290

425 57.4 7412 6781 13656 5772 4250 1595

450 65.4 7876 7217 14488 6154 4500 1700

475 73.9 8341 7652 15321 6552 4750 1810

500 83.0 8807 8088 16152 6932 5000 1915

530 94.5 9365 8611 17148 7402 5300 2045

560 106.8 9923 9130 18145 7872 5600 2175

Size Air flow A1 A2 B C D E

m3/s mm mm mm mm mm mm

Documents

MOD 1 CAP 3 Sepax Separator