Classifying Titanium DiOxide Using the Tiocent Centrifuge

The Tiocent Centrifuge: Model # V 630 BK

• Specially Designed for TiO2 Classification

• Solid-bowl with Baffles• Rugged Plough• Skimming Tube• High Efficiency Separation• A Proven Technology in

Synthetic Fiber Manufacturing• Trusted Name Worldwide

Applications And Markets

Applications

HEINKEL TiClassifying centrifuges are used in quasi-continuous wet classifying processes where fine, ultra fine and nano-scale particles have to be classifyied within a slurry.The most common applications are separation of TiO2, SIC, Zr, Al2O3, CaCO2, Kaolin which is suspended in either water or ethylene glycole

Markets

- Applicatios with TiO2

- Application in Nano- technology

Overview Of The Centrifuge

Overflow skimmming pipe (classified slurry)

Main drive

Drive for rugged plough

Centrifuge Case

Bolted Cover

Sight glas, light glass

Vibration damper

Elements (4 pcs.)

Thick Inertia plate

Coarse particle

discharge

Feed pipe, rinse pipe

Overview Of The Centrifuge And Specific Advantages

Feed pipe, rinse pipe

• central feed into the basket

• optimum distribution of the

slurry and rinse liquid

• only ONE central pipe forfeed and rinse pipe

• easy-to-connect withprocess pipings and tubes

Overview Of The Centrifuge And Specific Advantages

Overflow skimmming pipe (classified slurry)

• defined skimming of classified slurry

• no contamination with redispersed sediment

• few valves and process connections

Feed pipe, rinse pipe

Overview Of The Centrifuge And Specific Advantages

Overflow skimmming pipe (classified slurry)

Main drive

Feed pipe, rinse pipe

• V-belt drive for optimum power transmission

• easy access to v-belts and tensioning plate

Overview Of The Centrifuge And Specific Advantages

Overflow skimmming pipe (classified slurry)

Main drive

Inertia plate

Feed pipe, rinse pipe

• thick & heavy• low center of gravity• smooth operation with low vibration

Overview Of The Centrifuge And Specific Advantages

Overflow skimmming pipe (classified slurry)

Main drive

Inertia plate

Coarse particle

discharge

Feed pipe, rinse pipe

• tangential outlet, no blocking or sticking of the particles• at lowest position of housing for complete discharge• easy connection to next process step

Overview Of The Centrifuge And Specific Advantages

Overflow skimmming pipe (classified slurry)

Main drive

Vibration damper

Elements (4 pcs.)

Inertia plate

Coarse particle

discharge

Feed pipe, rinse pipe

• easy to install

• minimum residual forces transmitted

to the ground • for smooth operation of the machine

Overview Of The Centrifuge And Specific Advantages

Overflow skimmming pipe (classified slurry)

Main drive

Drive for plough/peeler Blade

Vibration damper

Elements (4 pcs.)

Inertia plate

Coarse particle

discharge

Feed pipe, rinse pipe

• electrically driven, with VFD• 100% repeatable discharge times • minimum discharge times• gentle discharge, minimum wear on the peeler knives

Overview Of The Centrifuge And Specific Advantages

Overflow skimmming pipe (classified slurry)

Main drive

Drive for plough/peeler

Cover

Sight glas, light glass

Vibration damper

Elements (4 pcs.)

Suspension plate

Coarse particle

discharge

Feed pipe, rinse pipe

• strong solid stainless steel plate• houses all process connections• easy access to the plough, the solid-bowl and feed/wash pipe

Sectional View Of The Centrifuge And Specific Advantages

Solid-Bowl (unperforated basket)

Cartridge Bearing

PeelerBaffle rings

V-belt Power Transmission

Process Connections

Redispersed Sediment

DN 50

EG or WaterDN 50Classified slurry

DN 50

Slurry-FeedDN 25

Step 1: Acceleration to Feeding Speed

The solid-bowl is accelerated to approx.2,000 – 2,500 rpm

Step 2: Feeding

The unclassified slurry is introduced into the bowl through feed pipe and feed cone system

Process Steps

Step 3: Classifying

-Depending on the feed flow rate the sizeof the classified particles can vary.-Coarse particles remain in the solid-bowlwhile the classified fines are removed viaskimming tube-The clasifiying time is ~1-3 hours

Step 4: Discharge

Once solid-bowl is filled with sediment to ~70% the discharge commences

The bowl rpm is reduced to 400 – 500 rpm

The sediment is discharged with the plough with Ethylene Glycol or water as an aid

The resdispersed sediment is discharged through openings in solid-bowl bottom

Process Steps (cont.)

Step 5: Rinsing

Once plough reaches preset end position, the rinsing process is started

The basket is decelerated to standstill. During this time the basket is rinsed with EG or water.

Process Steps (cont.)

Ploug or Multi-finger Peeler discharger

Basket filled with sediment Basket after discharge process

Tiocent Centrifuge Sizes & Models

Description/Size V 630 I BK V 630 II BK V 630 III BK

Basket Diameter 630 mm 630 mm 630 mm

Besket Height 400 mm 400 mm 500 mm

Sedimentation Area 0.79 m² 0.79 m² 1.0 m²

Basket Volume 30 l 30 l 37 l

Max. Load 62 kg 62 kg 78 kg

Basket Speed 3,000 rpm 3,000 rpm 3,000 rpm

G-Foce 3,170 3,170 3,170

- Electrically driven discharger- Overflow skimming pipe

Customer‘s benefit

The process-related advantages of this Centrifuge are:

Precise cut-off of the classified particles no intermixing of classified particles with the slurry coarse particles may be recycled in a ball mill the suspension is of high quality=>equal distribution of ultra fine particles minimal downtime during production. The centrifuge capable of handling different flow rates

User Advantages of the Tiocent classifying centrifuge:

easy installation of system due to pre-assembled piping and wiring of centrifuge, due to years of experience HEINKEL can also calculate and offer peripheral

components. The cut-point of the classified particles can be easily adjusted. Fully automatic, with low vibration and highly reliability Easily integrated into a plant-wide process control system.

Partial Installation List

Customer Year of Delivery

Type NumberBasket (DXH)

Remark

Reliance PolyGujarat, India

2012HEINKEL

V 630 III BK1 630 x 500 Polyester Plant

Hangzhou Win-WINHangzhou, CN

2010HEINKEL

V 630 III BK2 630 x 500

Polyesterplant in China

Hangzhou Win-WINHangzhou, CN

2010HEINKEL

V 630 III BK4 630 x 500

Polyesterplant in China

Zimmer AGFrankfurt, D

2010HEINKEL

V 630 III BK1 630 x 500

Polyesterplant in Brasilien

Zimmer AGFrankfurt, D

2008HEINKELD 630 II

1 630 x 400Polyesterplant in China

Hangzhou Win-WINHangzhou, CN

2008HEINKELD 630 I

1 630 x 400Kunde Mingyang China

Hangzhou Win-WINHangzhou, CN

2006HEINKELD 630 I

1 630 x 400Kunde Mingyang China

Zimmer AGFrankfurt, D

2006HEINKELD 630 I

1 630 x 400Polyesterplant in China

Zimmer AGFrankfurt, D

2005HEINKELD 630 I

2 630 x 400Polyesterplant in India

Partial Installation List (cont.)

Kunde Lieferjahr Typ AnzahlTrommel

(DXH)Bemerkung

Zimmer AGFrankfurt, D

2004 GFT D63 1 630 x 400Polyesterplant in Indien

HoyosungUlsan, KR

2004 GFT D63 1 630 x 400

Huvis, KOR 2003 GFT D63 1 630 x 400

Zimmer AGFrankfurt, D

2003 GFT D63 2 630 x 400Polyesterplant in China

Zimmer AGFrankfurt, D

2003 GFT D63 1 630 x 400Polyesterplant in China

Zimmer AGFrankfurt, D

2003 GFT D63 1 630 x 400Polyesterplant in China

Noyvallesina, I 2002 GFT D63 2 630 x 400Polyesterplant inIran

Zimmer AGFrankfurt, D

2001 GFT D63 1 630 x 400Polyesterplant inChina

Zimmer AGFrankfurt, D

2001 GFT D63 2 630 x 400Polyesterplant inPakistan