KWP-S(tandard) washing pressWashing and separation of organic material out of rough and fine screenings filtering

KWP-S(tandard) washing pressWashing and separation of organic material out of rough and fine screenings filtering

KUHN KWP-S(tandard) washing pressThe Standard-washing press is used as an addition to further treat

and dewater organic matter after the pre-separation ofscreenings. The washed waste material is then

compressed and removed.

The benefits of this devise have beenproven in local and industrial

wastewater treat-ment appli-cations and in Biomass andwaste processing.

How it works The KUHN KWP-Swashing press is most

commonly supplied withmaterial after rakes separate

the screenings from the flow,and screws or belt conveyors trans-

port the waste material directly to theKWP-S. Another common way to supply the

KWP-S is to use sloped open channels for materialtransport. The size of the KWP-S receiving tray is properly sized basedon the needed capacity.

An extremely strong screw with 20-30 mm thick steel blades pushesthe material into the washing zone where forward and back-

ward movement loosens the material and allows forthe material to be thoroughly rinsed.

The washed waste material is then compressedin a second stage screw, and therefore excesswater is removed. A chromium coating on thecompressing stage of the screw allows for

extremely high compression of the materialwhile maintaining its performance with

minimal wear.

After the material is compressed, the moist wasteproduct is transported through piping, attached to the

end of the compression stage, to storage containers. Thelength of the piping for the compressed waste material is recom-

mended to be between 6 and 10 meters.

As a washing fluid we recommend cold pre-filtered water. For anindustrial setting, warm pre-filtered water with addition of adegreaser is recommended.

The washing fluid consumption depends on the size of the machineand the desired level of washing.

Covers for minimizing odors and serving as a hygienic barrier are alsoavailable.

Performance and ExecutionThe KUHN KWP-S washing press consists of a sequence of essentialcomponents including the receiving tray, the single unit screw forwashing and an attached screw for compression, the enclosedwashing and compression zones, a bearing housing, a geared motor,and a screen for the water to drain out of the washing and compres-sion zones into a sloped drainage pan.

The bearing housing is located between the motor and the mainmachine housing. It includes thrust and ball bearings, and the entirebearing housing is using a special seal to remain watertight.

The standard model of the KUHN KWP-S washing press has thefollowing features:

• Multiple functions: washing, compression and dewatering, and transportation

• Washing potential up to 95 %

• Dewatering up to 50 % (depending on the screenings)

• Standard washing system with solenoid valves

• Chromium coatings for wear protection

• Ingenious bearing system

• Removable inspection cover in compression zone

• Powerful and robust design

• Easily removable drainage pan

Multiple functions: washing, compression and dewatering, and transportation • Washing potential up to 95 % Dewatering up to 50 % (depending on the screenings) • Standard washing system with solenoid valves

Chromium coatings for wear protection • Ingenious bearing system

KUHN GMBH · Franz-Kuhn-Straße 1-3 · 74746 Höpfingen, Germany · phone: +49 (0) 62 83 / 22 01-0 · fax: +49 (0) 62 83 / 22 01-88 · info@kuhn-gmbh.de R03/1

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KWP-S(tandard) washing pressWashing and separation of organic material out of rough and fine screenings filtering

1 Receiving tray 7 Separation screen2 Very rigged machine housing 8 Strong screw blades (20 to 30 mm thick)3 Washing zone with Solenoid valve system 9 Bearing housing4 Removable maintenance cover 10 Washing zone with Solenoid valve system5 Second stage material compressor KVR (optional) 11 Reinforced compression screw to reduce wear6 Catching pan 12 Elevated screw position (no contact to housing)

Type Max. throughput(raw screenings)

LengthFeed hopper

Connection size of dis-charge pipe (PN10)

Connection thread for wash water

KWP-S-250 approx. 2.8 m3/h 600...2000 mm DN250 G1/2"KWP-S-300 approx. 4.5 m3/h 1200 mm DN300 G3/4"KWP-S-400 approx. 8.0 m3/h 600...1200 mm DN400 G3/4"

1 2 3 4 5

7 8

6

9

11

12

10

Wash water

Optional additions• Second stage material compressor KVR

• Debris shredder KRZ

• Fully reinforced screw

Drivetrain

Materials

Other materials on request

Pressure min. 3.5 barQuality filtered water (filter fineness ≤ 300 μm)

Electrical safety IP55Transmission Flat or bevel gears

Motors / Fittings Standard materialMachine housing AISI 304 stainless steelScrew Special steel