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Linear Vibrating Screens
ThyssenKrupp Inustrial Solutions
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ThyssenKrupp Fördertechnik are one of the world’s leading manufacturers of machines and plants for the processing industry. Based on decades of experience, our engineers are engaged in research and development. The results have become an integral part of processing technology. Customers worldwide benet from our innovations. Whether standard or customized designs – ThyssenKrupp Fördertechnik always oer complete solutions often found in cooperation with the customer. Reliable, safe, protable... ThyssenKrupp Fördertechnik.
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ThyssenKrupp Linear Vibrating Screens Type DU Advanced, robust and economic
The latest generation of type DU linear vibrating screens with double unbalance drive unit provides screening areas with widths and lengths ranging from 800 to 5,500 mm and 2,000 to 12,000 mm, respectively. The screens are able to handle the increasing feed rates and meet the versatile requirements inherent to primary screening, sizing, dewatering, depulping and deslurrying of bulk materials such as hard rock, limestone, gravel, coal, ore, oil sand and salt – advanced screening equipment from ThyssenKrupp.
Advantages: innitely variable • Constant stroke overall height owing to • Low 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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Exactly adjusting machines to meet the appropriate requirements and assembly conditions optimizes the screening result. The linear vibrations are produced by double unbalance drive units made by ThyssenKrupp.
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1 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
2 Linear vibrating screen Stepped oil sand screen Type DU 64-3.6 x 8.0 (8.9) ED 2
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Design Characteristics
Through their advanced, robust and versatile design, ThyssenKrupp linear vibrating screens oer optimal solutions to the most dicult problems. Depending on the application, the body of the screen and the principal assemblies such as side walls, supporting system and cross member are either screwed or HUCK bolted, the machine design allowing screen coverings of dierent manufacturers to be used. Customers can choose between transversely tensioned perforated plates, bolted thick perforated plates, bar grates, transversely or longitudinally tensioned woven wire, rubber and plastic coverings. Plug-in systems for welded wedge wire screens and for rubber, plastic, perforated plate or woven wire screen coverings are available.
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Design documents are exclusively prepared on CAD systems (Fig. 3). Assemblies are dimensioned on the basis of a nite element analysis (Fig. 4) and on test bench vibration measurements taken during the test run.
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Sturdy helical springs and rubber buers are used to isolate the vibration. If needed, an additional anti-vibration frame can be used to decrease forces acting on the foundation.
3 CAD drawing of the screening machine shown in Fig. 2 Type DU 64-3.6 x 8.0 (8.9) ED 4 Finite element analysis of the screening machine shown in Fig. 1
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5 Vibration isolation frame with coil springs and rubber buers
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Grizzly-type screens
6 Grizzly-type primary screen
Grizzly-type screens for lumpy material are used as primary screens and feeding devices upstream of crushers and mills as well as for coarse screening operations. Depending on the application, they are equipped with a conveyor oor and an anti-vibration frame and can be provided as single-deck and double-deck screens.
7 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 Cutting size: 250 mm 8 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 Cutting size: 140 mm
Size 0.5 - 4 double unbalance gearboxes are used as drive units. Depending on the application, dierent designs of bar screens and perforated plates made of dierent materials are used as screen coverings.
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Sizing Screens
One of the most diverse tasks of mechanical processing of bulk materials is the sizing by means of screens. The standardized system of assemblies allows screen widths of up to 3 ,200 mm and screen lengths of up to 9 ,000 mm to be adopted in single-deck and multiple-deck screens for dry and wet sizing operations. A special screen called the «banana screen» is used for a low-bed of large feed quantities. Depending on the specied application, dierent designs of tensioned and at screen coverings made of dierent materials oer an optimal solution for screening granular bulk materials.
9 Banana screen Type DU 23-3.6 x 8.0 (8.9) 1 D Screening capacity: 1,900 t/h Limestone/slate: 0-100 mm Cutting size: 19 mm 10 Banana screen Type DU 13-2.0 x 7.6 (8.5) ED Screening capacity: 600 t/h Limestone: 0-100 mm Cutting size: 40 mm 11 Perforated plates 12 Plastic plug-in systems 13 Woven wire 14 Transversely tensioned rubber coverings 15 Linear vibrating screen Type DU 22-2.2 x 10.45 (11) ED Screening capacity: 300 t/h Raw coal: 0-80 mm Cutting size: 4/37 mm
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16 Linear vibrating nger screen Type DU 13-1.8 x 5.0 (6.0) ED Screening capacity: 720 t/h Limestone: 0-150/300 mm Cutting size: 30 mm
Additional equipment:
• Dustproof hoods • Rapping devices • Spraying systems.
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Dewatering, depulping and deslurrying screens
Linear vibrating screens for wet processing of bulk materials, pulps and slurries are used for the following purposes: of wet or wet • Dewatering processed materials allowing them to be transported by belt conveyors or to be loaded. to recover the • Depulping heavy medium and/or to feed dilute medium to the magnetic separating system, the separation limit being approx. 0.5 mm. suspensions • Deslurrying with separation limits of approx. 0.1 - 1 mm.
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17 Linear vibrating screen Type DU 22, width 4,500 mm for deslurrying coal Screening capacity: 300 t/h Coal: 0-6 mm Deslurrying at: 0.5 mm
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18 Linear vibrating screen Type DU 11 - 1.5 x 3.6 (3.9) ED Screening capacity: 225 t/h Gravel: 4-32 mm Dewatering at: 2 mm 19 Linear vibrating screen Type DU 12 - 1.5 x 4.8 (5.5) ED Screening capacity: 110 m3/h heavy medium Depulping at: 0.5 mm 19
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Standard Single-Deck Screens
G B H
L
F
E C
D
A J
A
B
C
D
E
F
G
H
J
L
Number of sections
Length of section
Arrangement of 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
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
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
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
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
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
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
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1,000
DU 12
18.5
7,000
7,800
380
7,220
200
500
300
3,300
1,500
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1,000
DU 13
22
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
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1,000
DU 14
37
9,000
9,800
380
9,220
200
500
300
3,700
1,600
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1,000
DU 14
37
1,600
1,800
2,000
2,200
2,500
2,800
3,200
All dimensions in mm
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Standard Double-Deck Screen
G B H
L K F
E C
A J
D
A
B
C
D
E
F
G
H
J
K
L
Number of sections
Length of section
Arrangement of drive unit
1,400
3,000
3,600
180
3,270
150
350
250
1,900
550
1,600
3
1,000
DU 11
N reqd. (kW) 800 r.p.m. 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
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
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
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
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
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
5,220
200
500
300
3,300
650
1,950
5
1,000
DU 13
22
6,000
5,800 6,800
380 380
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
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
1,600
1,800
2,000
2,200
2,500
2,800
3,200
5,000
All dimensions in mm
Apart from the standard screen sizes, shorter or longer screens can be provided by using dierent screen section congurations.
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Double Unbalance Drive Units
20 Double unbalance drive units in ve sizes 21 Adjusting the unbalance discs 22 Constant screening acceleration factor through acceleration detection and speed control systems
Linear vibrations are produced by the double unbalance drive units with adjustable unbalance discs. Five types of gearboxes are available. Their number and size depend on the task and the vibrating weight of the screen.
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P 21
C D
A O L2 M
L1
L1
K H
L
L2
N
E F
G
M
L
The gear units are driven through a non-vibrating V-belt intermediate gear with cardan shaft or through a cardan shaft which is directly coupled to the motor. If directly driven, the speed of the motor can optionally be changed by a frequency converter. The use of an electric braking device allows resonance speeds to be quickly run through during shutdown.
Q R G
PLC
B
Start / Stop 22
Size
A
B
C
D
E
F
G
H
K
L
0.5
225
332
392
210
245
300
27,5
540
150
150
M 45
2
N
O
P
Q
R
Working torque1 (kg cm)
Weight
Ø 26
20
Ø 11
101,5
120
2,080
250
101,5
120
4,640
690
130
150
8,160
1,050
155,5
180
11,680
1,490
196
225
18,480
2,630
(kg)
8x45° 1
270
380
467
245
245
300
27,5
650
170
200
40
Ø 26
25
Ø 11 8x45°
2
330
401,5
522
300
290
340
25
800
230
220
65
Ø 26
30
Ø 14 8x45°
3
370
466
532
290
334
390
28
880
250
230
85
Ø 33
35
Ø 16 8x45°
4
430
570
815
390
390
490
50
1 100
4x120
L1 150
50
Ø 33
L2 110
All dimensions in mm
1
Dynamic working torque at 750 r.p.m.
35
Ø 16,1 8x45°
2
Weight with unbalance discs and protective hoods
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Service
ThyssenKrupp Fördertechnik are attaching great importance to service. Committed employees, experience and the ability to tread new paths together with the innovative power, exibility and knowhow are the foundation on which the successful co-operation with our customers is built.
Project research, damage analysis, planning and modications aimed at a modernization and an increase of the output of machines and plants in conjunction with a worldwide after-sales service which also covers the equipment of other manufacturers.
Maintenance and repair services oered by ThyssenKrupp Fördertechnik include expert on-site consultancy. Repairs are carried out by highly qualied sta using high-quality and tested spare parts. Increase the productivity of your machinery and equipment. Get in touch with ThyssenKrupp Fördertechnik – wherever you are.
23 Mobile service 24 Projecting and designing 25 Adjusting the unbalance discs 26 Quick replacement of screen coverings without special tools 27 ThyssenKrupp control and diagnostic system
services • Inspection emergency services • Stand-by services • Repair - on site
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- in the workshop of the service centre Diagnostic systems Maintenance contracts Spare parts services.
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ThyssenKrupp Partners of the mineral processing industry
Product range Crushing technology Stationary, semi-mobile and mobile crushing plants Gyratory crushers KUBRIA ® cone crushers Double-toggle jaw crushers Single-toggle jaw crushers Impact jaw crushers MAMMUT® single-shaft hammer crushers TITAN® double-shaft hammer crushers Impact crushers Roller crushers RollSizers SIEBRA ® swivel-arm crushers
Grinding technology Ball mills Rod tube mills Hammer mills Roll mills Separating systems Water injection systems
Screening technology Linear vibrating screens Circular vibrating screens Elliptical vibrating screens Eccentric vibrating screens Screener Fines screening machine Grizzly primary screens Vibrating screen feeders Unbalance drive units Aqua vibrating separators
Filtering- and drying technology Magnetic separators Dryers Vacuum belt lters CHF vacuum belt lters Separating cyclones Hydro-cyclones Cyclone clusters Disc lters
• •• •• •• •• •• • •• •• •• •• •
•• •• •• •• •• •
Feeding and conveying systems Apron feeders Chain conveyors Reciprocating plate feeders Vibrating screens Wobbler feeders
•• •• •• ••
Systems Systems for power plants Coal preparation systems Detection systems
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Engineering Modernization, Refurbishment After-sales service Training
ThyssenKrupp Industrial Solutions AG
Business Unit Resource Technologies Schleebergstraße 12, 59320 Ennigerloh, Germany, Tel.: +49 2525 99-0 E-mail:
[email protected]
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