Vibrating Screen Design

ThyssenKruppInustrial Solutions

Linear Vibrating Screens

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ThyssenKrupp Frdertechnikare one of the worlds leadingmanufacturers of machines andplants for the processingindustry.

Based on decades ofexperience, our engineers areengaged in research anddevelopment. The results havebecome an integral part ofprocessing technology.Customers worldwide benefitfrom our innovations.

Whether standard orcustomized designs ThyssenKrupp Frdertechnikalways offer completesolutions often found incooperation with the customer.

Reliable, safe, profitable...ThyssenKrupp Frdertechnik.

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ThyssenKrupp Linear Vibrating Screens Type DUAdvanced, robust and economic

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The latest generation of typeDU linear vibrating screens withdouble unbalance drive unitprovides screening areas withwidths and lengths rangingfrom 800 to 5,500 mmand 2,000 to 12,000 mm,respectively.The screens are able to handlethe increasing feed rates andmeet the versatile requirementsinherent to primary screening,sizing, dewatering, depulpingand deslurrying of bulk materialssuch as hard rock,limestone, gravel, coal, ore, oilsand and salt advancedscreening equipment fromThyssenKrupp.

Exactly adjusting machines tomeet the appropriaterequirements and assemblyconditions optimizes thescreening result.

The linear vibrations areproduced by double unbalancedrive units made byThyssenKrupp.

Advantages:

Constant infinitely variable stroke

Low overall height owing to the horizontal arrangement of assemblies

Optionally with bottom or top drive unit

Optimum adaptation to the particular screening job by changing the angle of throw

Quick change of the drive unit

Replacement service for the ThyssenKrupp double unbalance drive units

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Linear vibrating screen

Type DU 64-4.0 x 9.6 (10.5) ED

for sizing oil sand 0-600 mm

Screening capacity: 10,000 t/h

Cutting size: 100 mm

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Stepped oil sand screen

Type DU 64-3.6 x 8.0 (8.9) ED

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Through their advanced, robustand versatile design,ThyssenKrupp linear vibratingscreens offer optimal solutions tothe most difficult problems.

Depending on the application,the body of the screen and theprincipal assemblies such as sidewalls, supporting system andcross member are either screwedor HUCK bolted, the machinedesign allowing screen coveringsof different manufacturers to beused.Customers can choose betweentransversely tensioned perforatedplates, bolted thick perforatedplates, bar grates, transversely orlongitudinally tensioned wovenwire, rubber and plastic coverings.Plug-in systems for welded wedgewire screens and for rubber,plastic, perforated plate or wovenwire screen coverings areavailable.

Design Characteristics

Design documents areexclusively prepared on CADsystems (Fig. 3).Assemblies are dimensioned onthe basis of a finite elementanalysis (Fig. 4) and on testbench vibration measurementstaken during the test run.

Sturdy helical springs and rubberbuffers are used to isolate thevibration.If needed, an additionalanti-vibration frame can be usedto decrease forces acting on thefoundation.

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CAD drawing of the screening machine

shown in Fig. 2

Type DU 64-3.6 x 8.0 (8.9) ED

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Finite element analysis of the screening

machine shown in Fig. 1

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Vibration isolation frame with coil springs

and rubber buffers

Grizzly-type screens5

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Grizzly-type primary screen

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Grizzly-type screen

Type DU-Stk 33-3.1 x 7.75

Screening capacity: 8,000 t/h

Overburden: 0-1,000/2,000 mm


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Grizzly-type screen

Type DU-Stk 34-3.6 x 4.5 (6.0) ED

Screening capacity: 7000 t/h

Limestone: 0-1,500 mm


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Grizzly-type screens for lumpymaterial are used as primaryscreens and feeding devicesupstream of crushers and millsas well as for coarse screeningoperations. Depending on theapplication, they are equippedwith a conveyor floor and ananti-vibration frame and can beprovided as single-deck anddouble-deck screens.

Size 0.5 - 4 double unbalancegearboxes are used as driveunits.Depending on the application,different designs of bar screensand perforated plates made ofdifferent materials are used asscreen coverings.

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One of the most diverse tasksof mechanical processing ofbulk materials is the sizing bymeans of screens.The standardized system ofassemblies allows screenwidths of up to 3 ,200 mmand screen lengths of up to9 ,000 mm to be adopted insingle-deck and multiple-deckscreens for dry and wet sizingoperations.A special screen called thebanana screen is used for alow-bed of large feedquantities. Depending on thespecified application, differentdesigns of tensioned and flatscreen coverings made ofdifferent materials offer anoptimal solution for screeninggranular bulk materials.

Sizing Screens

Additional equipment:

Dustproof hoods Rapping devices Spraying systems.

9Banana screenType DU 23-3.6 x 8.0 (8.9) 1 DScreening capacity: 1,900 t/hLimestone/slate: 0-100 mm

Cutting size: 19 mm

10Banana screenType DU 13-2.0 x 7.6 (8.5) EDScreening capacity: 600 t/hLimestone: 0-100 mmCutting size: 40 mm

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Perforated plates

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Plastic plug-in systems

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Woven wire

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Transversely tensioned rubber coverings

15Linear vibrating screenType DU 22-2.2 x 10.45 (11) EDScreening capacity: 300 t/hRaw coal: 0-80 mm

Cutting size: 4/37 mm

16Linear vibrating finger screenType DU 13-1.8 x 5.0 (6.0) EDScreening capacity: 720 t/hLimestone: 0-150/300 mmCutting size: 30 mm

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Dewatering, depulping and deslurrying screens7

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Type DU 22, width 4,500 mm

for deslurrying coal


Coal: 0-6 mm

Deslurrying at: 0.5 mm

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Type DU 11 - 1.5 x 3.6 (3.9) ED


Gravel: 4-32 mm

Dewatering at: 2 mm

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Type DU 12 - 1.5 x 4.8 (5.5) ED

Screening capacity:

110 m3/h heavy medium

Depulping at: 0.5 mm

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Linear vibrating screens for wetprocessing of bulk materials,pulps and slurries are used forthe following purposes:

Dewatering of wet or wet processed materials allowing them to be transported by belt conveyors or to be loaded.

Depulping to recover the heavy medium and/or to feed dilute medium to the magnetic separating system, the separation limit being approx. 0.5 mm.

Deslurrying suspensions with separation limits of approx. 0.1 - 1 mm.

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Standard Single-Deck Screens

A B C D E F G H J L Numberof sections

Lengthof section

Arrangementof drive unit

N reqd. (kW)800 r.p.m.

1,400 3,000 3,600 180 3,270 150 350 250 1,900 1,300 3 1,000 DU 105 -

4,000 4,400 180 4,070 150 350 250 1,900 1,300 4 1,000 DU 105 -

5,000 5,600 180 5,270 150 350 250 1,900 1,300 5 1,000 DU 11 15

1,600 4,000 4,600 180 4,270 150 350 250 2,100 1,300 4 1,000 DU 11 15

5,000 5,600 180 5,270 150 350 250 2,100 1,300 5 1,000 DU 11 15

6,000 6,600 180 6,270 150 350 250 2,100 1,300 6 1,000 DU 11 15

1,800 4,000 4,600 180 4,270 150 350 250 2,300 1,300 4 1,000 DU 11 15

5,000 5,600 180 5,270 150 350 250 2,300 1,300 5 1,000 DU 11 15

6,000 6,600 180 6,270 150 350 250 2,300 1,300 6 1,000 DU 11 15

2,000 4,000 4,600 180 4,270 150 350 250 2,500 1,300 4 1,000 DU 11 15

5,000 5,600 180 5,270 150 350 250 2,500 1,300 5 1,000 DU 11 15

6,000 6,600 180 6,270 150 350 250 2,500 1400 6 1,000 DU 12 18.5

2,200 4,000 4,800 380 4,220 200 500 300 2,700 1,300 4 1,000 DU 11 15

5,000 5,800 380 5,220 200 500 300 2,700 1400 5 1,000 DU 12 18.5

6,000 6,800 380 6,220 200 500 300 2,700 1400 6 1,000 DU 12 18.5

2,500 4,000 5,800 380 5,220 200 500 300 3,000 1400 5 1,000 DU 12 18.5

6,000 6,800 380 6,220 200 500 300 3,000 1400 6 1,000 DU 12 18.5

7,000 7,800 380 7,220 200 500 300 3,000 1,500 7 1,000 DU 12 18.5

2,800 5,000 5,800 380 5,220 200 500 300 3,300 1,450 5 1,000 DU 12 18.5

6,000 6,800 380 6,220 200 500 300 3,300 1,450 6 1,000 DU 12 18.5

7,000 7,800 380 7,220 200 500 300 3,300 1,500 7 1,000 DU 13 22

3,200 5,000 5,800 380 5,220 200 500 300 3,700 1,500 5 1,000 DU 13 22

6,000 6,800 380 6,220 200 500 300 3,700 1,600 6 1,000 DU 13 22

7,000 7,800 380 7,220 200 500 300 3,700 1,600 7 1,000 DU 13 22

8,000 8,800 380 8,220 200 500 300 3,700 1,600 8 1,000 DU 14 37

9,000 9,800 380 9,220 200 500 300 3,700 1,600 9 1,000 DU 14 37

All dimensions in mm

AJ

DEC

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BH

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Standard Double-Deck Screen9

A B C D E F G H J K L Numberof sections

Lengthof section

Arrangementof drive unit

N reqd. (kW)

800 r.p.m.1,400 3,000 3,600 180 3,270 150 350 250 1,900 550 1,600 3 1,000 DU 11 15

4,000 4,400 180 4,070 150 350 250 1,900 550 1,750 4 1,000 DU 11 15

5,000 5,600 180 5,270 150 350 250 1,900 550 1,750 5 1,000 DU 11 15

1,600 4,000 4,600 180 4,270 150 350 250 2,100 550 1,850 4 1,000 DU 11 15

5,000 5,600 180 5,270 150 350 250 2,100 550 1,850 5 1,000 DU 12 18.5

6,000 6,600 180 6,270 150 350 250 2,100 550 1,850 6 1,000 DU 12 18.5

1,800 4,000 4,600 180 4,270 150 350 250 2,300 600 1,850 4 1,000 DU 12 18.5

5,000 5,600 180 5,270 150 350 250 2,300 600 1,850 5 1,000 DU 12 18.5

6,000 6,600 180 6,270 150 350 250 2,300 600 1,850 6 1,000 DU 12 18.5

2,000 4,000 4,600 180 4,270 150 350 250 2,500 600 1,850 4 1,000 DU 12 18.5

5,000 5,600 180 5,270 150 350 250 2,500 600 1,850 5 1,000 DU 12 18.5

6,000 6,600 180 6,270 150 350 250 2,500 600 1,900 6 1,000 DU 13 22

2,200 4,000 4,800 380 4,220 200 500 300 2,700 600 1,850 4 1,000 DU 12 18.5

5,000 5,800 380 5,220 200 500 300 2,700 600 1,850 5 1,000 DU 13 22

6,000 6,800 380 6,220 200 500 300 2,700 600 2,050 6 1,000 DU 13 22

2,500 4,000 5,800 380 5,220 200 500 300 3,000 650 1,950 5 1,000 DU 13 22

6,000 6,800 380 6,220 200 500 300 3,000 650 1,950 6 1,000 DU 13 22

7,000 7,800 380 7,220 200 500 300 3,000 650 2,000 7 1,000 DU 14 37

2,800 5,000 5,800 380 5,220 200 500 300 3,300 650 1,950 5 1,000 DU 13 22

6,000 6,800 380 6,220 200 500 300 3,300 650 2,000 6 1,000 DU 14 37

7,000 7,800 380 7,220 200 500 300 3,300 650 2,000 7 1,000 DU 14 37

3,200 5,000 5,800 380 5,220 200 500 300 3,700 650 2,000 5 1,000 DU 14 37

6,000 6,800 380 6,220 200 500 300 3,700 650 2,100 6 1,000 DU 14 37

7,000 7,800 380 7,220 200 500 300 3,700 650 2,100 7 1,000 DU 23 45

8,000 8,800 380 8,220 200 500 300 3,700 650 2,100 8 1,000 DU 23 45

9,000 9,800 380 9,220 200 500 300 3,700 650 2,100 9 1,000 DU 24 55

All dimensions in mm

Apart from the standard screen sizes, shorter or longer screens can be provided byusing different screen section configurations.

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Double Unbalance Drive Units

Linear vibrations are producedby the double unbalance driveunits with adjustable unbalancediscs.

Five types of gearboxes areavailable. Their number andsize depend on the task andthe vibrating weight of thescreen.

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Double unbalance

drive units

in five sizes

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Adjusting the

unbalance discs

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Constant screening

acceleration factor

through

acceleration

detection and

speed control

systems

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The gear units are driventhrough a non-vibrating V-beltintermediate gear with cardanshaft or through a cardanshaft which is directly coupledto the motor. If directly driven,the speed of the motor canoptionally be changed by afrequency converter. The useof an electric braking deviceallows resonance speeds to bequickly run through duringshutdown.

All dimensions in mm 1Dynamic working torque at 750 r.p.m. 2Weight with unbalance discs and protective hoods

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PLC

Start / Stop

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P

QR

GN

GEF

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KH

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ML2 L1 L2L1

ML L

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Size A B C D E F G H K L M N O P Q R Workingtorque1(kg cm)

Weight2

(kg)

0.5 225 332 392 210 245 300 27,5 540 150 150 45 26 20 11 101,5 120 2,080 250

8x45

1 270 380 467 245 245 300 27,5 650 170 200 40 26 25 11 101,5 120 4,640 690

8x45

2 330 401,5 522 300 290 340 25 800 230 220 65 26 30 14 130 150 8,160 1,050

8x45

3 370 466 532 290 334 390 28 880 250 230 85 33 35 16 155,5 180 11,680 1,490

8x45

4 430 570 815 390 390 490 50 1 100 4x120 L1 150 50 33 35 16,1 196 225 18,480 2,630

L2 110 8x45

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Mobile service

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Projecting and designing

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Adjusting the unbalance discs

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Quick replacement of screen coverings

without special tools

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ThyssenKrupp control and diagnostic

system

ThyssenKrupp Frdertechnikare attaching great importanceto service. Committedemployees, experience andthe ability to tread new pathstogether with the innovativepower, flexibility and knowhoware the foundation onwhich the successfulco-operation with ourcustomers is built.

Project research, damageanalysis, planning andmodifications aimed at amodernization and an increaseof the output of machines andplants in conjunction with aworldwide after-sales servicewhich also covers theequipment of othermanufacturers.

Maintenance and repairservices offered byThyssenKrupp Frdertechnikinclude expert on-siteconsultancy. Repairs arecarried out by highly qualifiedstaff using high-quality andtested spare parts.

Increase the productivity ofyour machinery andequipment. Get in touch withThyssenKrupp Frdertechnik wherever you are.

Inspection services Stand-by emergency services Repair services - on site - in the workshop of the service centre

Diagnostic systems Maintenance contracts Spare parts services.23 24

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ThyssenKruppPartners of the mineral processing industry

Product range

Crushing technology

Stationary, semi-mobile and mobile crushing plantsGyratory crushersKUBRIA cone crushersDouble-toggle jaw crushersSingle-toggle jaw crushersImpact jaw crushersMAMMUT single-shaft hammer crushersTITAN double-shaft hammer crushersImpact crushersRoller crushersRollSizersSIEBRA swivel-arm crushersScreening technology

Linear vibrating screensCircular vibrating screensElliptical vibrating screensEccentric vibrating screensScreener Fines screening machineGrizzly primary screensVibrating screen feedersUnbalance drive unitsAqua vibrating separators

Grinding technology

Ball millsRod tube millsHammer millsRoll millsSeparating systemsWater injection systemsFeeding and conveying systems

Apron feedersChain conveyorsReciprocating plate feedersVibrating screensWobbler feedersFiltering- and drying technology

Magnetic separatorsDryersVacuum belt filtersCHF vacuum belt filtersSeparating cyclonesHydro-cyclonesCyclone clustersDisc filtersSystems

Systems for power plantsCoal preparation systemsDetection systemsEngineeringModernization, RefurbishmentAfter-sales serviceTraining

ThyssenKrupp Industrial Solutions AG

Business Unit Resource Technologies

Schleebergstrae 12, 59320 Ennigerloh, Germany, Tel.: +49 2525 99-0

E-mail: [email protected]

Documents

Vibrating Screen Design