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Best possible efficiency combinedwith maximum reliability

In the solids/liquid separation process Krauss-Maffei Pusher Centrifuges perfectly combine

these features: maximum availability with

minimum maintenance and low specific

space requirement.

Pusher Centrifuge SZ

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Extensive experience

At Krauss-Maffei Process Technologyour experience in the field of pushercentrifuges is demonstrated in over3000 installations throughout theworld over the last 50 years.

Pusher centrifuges are applied in manydifferent industrial sectors. Bulk chem-istry, plastics engineering, mining and

minerals, the fibre industry and thefood industry.

Typical applications

Salts such as sodium chloride, sodiumsulphate, ammonium sulphate, potas-sium chloride and potassium sulphate.Plastics such as ABS, MBS, DMT, adipicacid, chlorinated rubbers, melamine,polyamides, polyethylene, polymers,

polypropylene, polystyrene and alsoEPS.

Spectrum of use

The suspension to be separated shouldhave the following properties: easy tofilter, median particle diameter greaterthan 100 m and viscosity of liquidless than 30 cPs.

The solids contents of the slurries to beseparated should ideally be between30 and 75% by weight with crystalline

materials, and between 3 and 12% byweight with fibrous substances.

Pre-thickening is used to fortify theslurry to be dewatered to the bestsolids concentration for the respectiveapplication.

Pusher centrifuge application permitsthroughput rates of up to 100 t/h withcrystalline products, with a residual

moisture of less than 1% in some cases.

Fig. 1 Process housing Fig. 2 Pusher centrifuge in operation

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Integration in the overall system

To optimise the advantages offered bycontinuous operation it is necessary tofeed the slurry in the highest possibleconcentration and in a uniform man-ner. For this purpose the equipmentconnected upstream is of critical im-portance. Krauss-Maffei Process Tech-nology therefore has a wide spectrumof pre-thickening systems available.Ideally the pre-thickening, centrifuge,solids transport and dryer are incor-porated in one unit.System solutions from Krauss-MaffeiProcess Technology combine high-performance mechanical engineeringwith process technology know-how.

Krauss-Maffei Process Technologyoffers you the following advantages:

Greater capacity and throughput

rates with maximum product quality:The patented feed system ensuresoptimal distribution and pre-accele-ration of the product.

Reliable and effective pusher drive:

For basket diameters of up to 500mm the machines are fitted with a

mechanical pusher drive operatedvia a gear and eccentric. For baskets

with diameters of 630mm upwardsthe pusher drive is carried out viaefficient oil hydraulics.

Fast repair and maintenance

involving minimum downtimes:

In machines fitted with basket dia-meters from 630 mm all rotating

parts are combined in a cartridge.This can be easily replaced with the

spare cartridge. Any necessarymaintenance work can then becarried out in the workshop with

minimum disruption.

Quick and easy assembly:

Installation is carried out directly onelastic vibration dampers. A vibra-

tion foundation is not required.

Fig. 3 Vane-type feed distributor Fig. 4 Mechanical pusher drive

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Dimensions and weights:

Machinetype

SZ 21/22

SZ 315

SZ 400

SZ 500

SZ 630

SZ 800

SZ 1000

SZ 1250

Nominaldiameter[mm]

250

315

400

500

630

800

1000

1250

A [mm]Machineoveralllength

1700

1850

2300

2670

3080

3600

4150

4150

B [mm]Baseframelength

1000

1100

1400

1770

1930

2300

2680

2680

D [mm]Height

900

1000

1340

1100

1300

1550

1750

1850

Operatingweight*)

1000

1500

2300

3500

6300

8900

15000

16000

Pusherdrive

Eccentric

Eccentric

Eccentric

Eccentric

Hydraulics

Hydraulics

Hydraulics

Hydraulics

C [mm]Baseframewidth

1120

1240

1440

1510

2000

2290

2290

2290

*) Machine does not require any additional foundation weight!

Machines are of 1, 2, 3, or 4-stage design, depending on the specific application.

Dimensions are for illustration only and subject to change!

Krauss-Maffei Process Technology AG

Krauss-Maffei-Strasse 2, D-80997 Munich

Tel.: +49 89 88 99 35 13 Fax: +49 8988 99 35 33

www.kmpt.com marketing@kmpt.com

Pusher Centrifuge SZ

1.0

TBKMPSZ04/2003GB

Separation Technology innovative, reliable and efficient