vibrating screens

5/13/2018 Vibrating Screens

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ELECTRO IAVODVibrating Screens

in eellaberatlnn wlth

Germany


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[ E Z ] ELECTRO IAYOD

ABOUT US

Electro Zavod is one of India's leading manufacturers of specializedequipment for bulk material handling plants. Electro Zavod hasa technical collaboration with the world leaders in vibratingtechnology, JOSTGmbH & : Co KG of Germany ..lOST GmbH, set up in 1920 in the heart of Europe's mineral andmining belt, Germany's Ruhr Valley, is a pioneer in separationtechnology and has supplied a larqe number of screens all overthe world. They are an MNC with operations in North America,Australia & : Africa and Electro Zavod is their first and only licenseein Asia. JOST'score competency in vibration technology for morethan 80 years, and their continuous R & : D work equips ElectroZavod to design an optimum combination of vibrating drive andmachine.

SELECTION

The decision to select a particular vibrating screen is critical -it impacts the operating life, efficiency of screening, maintenancerequirement, inventory cost, environmental factors and of courseinvestment. A wrong choice could lead to bottlenecks in materialflow, preventing the plant from working to its capacity.Electro lavod screens are rugged and designed for a long life.Due to the vast experience of lOST and the wide choice ofvibratory drives available, Electro Zavod selects and delivers themost efficient and economical screen for each individualapplication. Selection of the correct drive is very important forscreening efficiency and highest possible output especially forprolonged usage over the life of the machine. Electro Zavodhas the complete range of vibrating drives which enables us tomake the optimum selection.


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J O S T G E R M A N

Screening performance isaffected by various characteristics of the feed materialincluding particle shape, bulk density, flow-ability and surface moisture. Mostimportant perhaps, is the particle size distribution of the feed. It is essential tochoose the correct screening motion and configuration for performance anddurability.There are two basic types of screening motion, circular and linear.

MOTION SCREENS

Circular Motion Screens are operated either by a single shaft vibrator or by a single unbalance motor. Due tothe eccentricity of the shaft in the case of single shaft drive, a controlled circular motion is produced. In the caseof a single unbalance motor drive, the circular motion is produced by the unbalanced weights on the rotor shaft.These screens have a slope varying between 15 and 25 . They are commonly used with a combination of lowamplitude of vibration and high frequency.The most common circular motion drives are:

Single Shaft Drive: These screens have a simple design. Thedrive is through a cardan shaft or a 'V'-belt. In case of a 'V'-beltdrive, speed variation is possible. The single shaft drive is mostlyused for medium to larqe sized screens.

Single Unbalance Motor: These are primarily used forsmall to medium sized screens, and have a fixed rotationalspeed which depends on the unbalance motor selected.


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[ E Z l ELECTRO ZA VODMOTION SCREENS

linear Motion Screens are operated either by a mechanical exciter or two unbalance motors. In both casesrotation in opposite directions creates linear vibration. Linear motion screens are very high performance machines,in terms of capacity and efficiency. They have a low inclination which varies between 0 and 15. The drive is acombination of high amplitude and low frequency of vibration.The common linear motion drives are :-

Two Unbalance Motors: These are arranged as a double drivewhich produce linear vibrations. They are mainly usedfor medium-sized vibratory screens. Due to linear vibrations, these screenshave a much lower downward inclination than those with shaftdrives. In special cases the screens can even run without anyinclination or with a slight incline.

Exciters: Drive units of this type also produce linear vibrations.They are mainly used for vibrating heavy duty large and verylarge screens. When more than one exciter is being used in verylarge screens, the vibratory force is uniformly and efficientlytransferred from the exciter to the screen. The drive motor ofthe exciter is a standard foot-mounted motor. The motor torqueis transmitted to the exciter either directly via a cardan shaft orindirectly by a V-belt drive or a variable speed gear. The indirectdrive allows the user to adjust the rotational speed.

PARTICLE SCREENING

Conventional screening machines are not able to screen medium and fine particles very efficiently. Electro lavodmultiple slope screens ensure a good precise separation even for materials which are difficult to screen. Theoperating principle of multiple slope vibrating screen is based on maintaining an uniformly thin bed of material,right from the feed to the discharge end of the screen. This allows stratification of fines at the bottom of thebed and increases the probability of separation. By designing the screens with varying deck slopes, Electro lavodscreens have improved screening efficiencies at higher capacities compared to conventional horizontal type screens.


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J O S T G E R M A N YFOR COARSE SCREENING

Grizzly screens are usually employed to extract coarse materialfrom storage bins or storage hoppers and convey it to downstreamcrushers. They are used for screening smaller grain size in the feedmaterial which do not need crushing. Electro lavod grizzly screensare specially designed for such application. Electro lavodgrizzlyscreens are produced with one or two decks. The top deck feedscoarse material to the crusher and the lower deck screens thebalance material in two separate grain sizes.

SCREENS

Dewatering Screens are used for separation of solids from liquids.Best results are achieved with screens which are slightly inclinedso that the mass of solids can accumulate and build up. Anadjustable discharge plate allows for fine-tuning. A high frequencyof vibration increases efficiency of sizing and dewatering.

ACCESSORIES

Electro lavod screens are supported by suitable springs which isolate the vibration. Electro lavod Screens canalso be supported by vibration dampening frames, if required. This ensures that the residual dynamic forcesare negligible.

Electro lavod vibrating screens can be equipped with the following optional components.

Inlet feed box Outlet connectors Dust-tight covers (stationary or vibratory) Suction hood for dust suppression Rubber bellows

Inspection windows with covers Wear liners


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[ E Z ] ELECTRO IAYODSINGLE DECK CIRCULAR MOTION (Model Code SVE)

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Torque PowerSxA (kgcm) (kW) C F G H M N

600 x 1500 450 1.6 1680 730 1000 400 120 1440600 x 2000 700 2.8 2180 730 1000 400 120 1940600 x 2500 700 2.8 2680 730 1000 400 120 2440800 x 1500 700 2.8 1770 730 1200 400 170 1450800 x 2000 700 2.8 2270 800 1200 400 170 1950800 x 2500 950 3.0 2770 850 1200 400 170 24501000 x 1500 950 3.0 1770 850 1400 450 170 14501000 x 2000 950 3.0 2270 850 1400 450 170 19501000 x 2500 1400 6.0 2770 900 1400 500 170 24501000 x 3000 1400 6.0 3270 900 1400 500 170 29501200 x 2500 1400 6.0 2770 950 1600 550 170 24501200 x 3000 1400 6.0 3270 950 1600 550 170 29501200 x 3500 2200 9.5 .3770 950 1600 550 170 34501200 x 4000 2200 9.5 4270 1100 1600 600 170 39501400 x 3000 2200 9.5 3270 950 1800 600 170 29501400 x 3500 2200 9.5 3770 1100 1800 600 170 34501400 x 4000 2200 9.5 4270 1150 1180 650 170 3950


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DOUBLE. DE.CK CIRCULAR MOTION (Model Code SVZ)

Torque PowerBxA (kgcm) (kW) C F G H M N

600 x 1500 700 2.8 1680 1130 1000 750 120 1440600 x 2000 700 2.8 2180 1130 1000 750 120 1940600 x 2500 950 3.0 2680 1130 1000 750 120 2440800 x'1500 95 0 3.0 1770 1180 1200 800 170 1450800 x 2000 950 3.0 2270 1180 1200 800 170 1950800 x 2500 1400 6.0 2770 1180 1200 800 170 24501000 x 1500 1400 6.0 1770 1180 1400 800 170 14501000 x 2000 1400 6.0 2270 1180 1400 800 170 19501000 x,2500 1400 6.0 2770 1200 1400 800 170 24501000 x 3000 2200 9.5 3270 1200 1400 800 170 29501200 x 2500 2200 9.5 2770 1300 1600 870 110 2450

.1200 x 3000 2200 9.5 32.70 1370 1600 870 170 29501200 x 3500 2200 9.5 3770 1370 1600 870 170 34501200 x 4000 3300 6.8 4270 1370 1600 870 170 39501400 x 3000 3300 6.8 3270 1370 1800 '870 170 29501400 x 3500 3300 6.8 3770 1370 1800 870 170 34501400 x 4000 3300 6 .8 4270 1370 1800 870 170 3950


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[ E Z ] ELEC TRO ZAVODSINGLE DECK LINEAR MOTION (Model Code SUE)

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--41---- ----'+-'--BxA

600 x1500600 x 2000600 x 2500BOO x 1500BOO x 2 000BOO x 25001000 x 15001000 x 20001000 x 24001000 x 30001200 x 25001200 x 30001 20 0 x 36 001200 x 40001400 x 30001400 x 36001400 x 40001600 x 30001600 x 36001600 x 40001600 x 50001800 x 40001 B O O x 50001 B O O x 6 00 0

Torque(kgcm)

90250250250250450450450700700700700700950950950950950950

11501400220022002200

Power(kW)

2 xO_BO2xO_952xO.952xO.952xO.952x1.602x1.602x1.602x2.802x2_BO2x2_BO2x2.BO2x2.BO2x3.002x3.002x3.002x3.002x3.002x3.002x4.002x6.002x9.502x9.502x9.50

C168021802680177022702770177023002700330027003300390043003300390043003300390043005300450055006500

F750820820820930980

107010701070107011001100110011001100110011001200125012501,250130013001300

G100010001000120012001200150015001500150017001700170017001900190019002100210021002100230023002300

H400400400400400450600600600600600600600600600600600700700700700700700700

M120120120170170170220220220220220220220220220220220220220220220180180180

N144019402440145019502450148019802380298023802980358039802980358039802980358039804980415051506150


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J O S T G E R M A N YDOUBLE DECK LINEAR MOTION (Model Code SUZ)

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Torque PowerBxA (kgcm) (kW) C F G H M N

600 x 1500 450 2x1_6 1680 1280 1000 750 120 1440600 x 2000 450 2xl.6 2180 1280 1000 750 120 1940600 x 25 00 450 2x1.6 2680 1280 1000 750 120 2440800 x 1500 450 2x1.6 1770 1330 1200 800 170 1450800 x 2000 450 2x1.6 2270 1330 1200 800 170 1950800 x 2500 700 2x2.8 2770 1370 1200 800 170 24501000 x 1500 700 2x2.8 1800 1450 1500 950 220 14801000 x 2000 700 2x2.8 2300 1450 1500 950 220 19801000 x 2400 950 2x3_0 2700 1450 1500 950 220 23801000 x 3000 950 2x3_0 3300 1500 1500 1000 220 29801200 x 2400 950 2~3_0 2700 1500 1700 1000 220 23801200 x 3000 950 2x3.0 3300 1550 1700 1000 220 29801200 x 3600 1150 2x4.0 3900 1550 1700 1000 220 25901200 x 4000 1400 2x6.0 4300 1550 1700 1000 220 39801400 x 3000 1150 2x4.0 3300 1600 1900 1000 220 29801400 x 3 600 1400 2x6.0 3900 1600 1900 1000 220 25801400 x 4000 1400 2x6.0 4300 1600 1900 1000 220 39801600 x 3000 1400 2x6.0 3300 1600 2100 1000 220 29301600 x 3 600 1400 2x6_0 3900 1600 2100 1000 220 35301600 x 4000 2200 2x9_5 4300 1600 2100 1000 220 39301600 x 5 000 2200 2x9_5 5300 1600 2100 1000 220 49301800 x 4000 2200 2x9.5 4500 1700 2300 1100 180 41601800 x 5000 2200 2x9.5 5500 1700 2300 1100 180 51501800 x 6000 2200 2x9.5 6500 1700 2300 1100 180 6150


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[ E Z ) E LEC TRO IA VODSINGLE DECK CIRCULAR MOTION (Model Code SWE)

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Torque PowerBxA (kgcm) (kW) C F G H M N1000 x 2000 1154 3.7 2300 900 1500 500 220 19801000 x 2400 1154 3.7 2700 900 1500 500 220 23801000 x 3000 1154 3.7 3300 900 1500 500 220 29801200 x 2400 1154 3.7 2700 900 1700 500 220 23801200 x 3000 1154 3.7 3300 900 1700 500 220 29801200 x 3600 1154 3.7 3900 900 1700 500 220 35801200 x 4000 1154 3.7 4300 1000 1700 500 220 39801400 x 3000 1154 3.0 3300 1000 1900 500 220 29801400 x 3600 1154 3.0 3900 1000 1900 500 220 35801400 x 4000 1700 5.5 4300 1000 1900 500 220 39801600 x 3000 1700 5.5 3300 1000 2100 500 220 29801600 x 3600 1700 5.5 3900 1000 2100 500 220 35801600 x 4000 1700 5.5 4300 1000 2100 500 220 39801600 x 5000 1700 5.5 5300 1000 2100 500 220 49801800 x 4000 1700 5.5 4500 1000 2300 550 180 42001800 x 5000 2380 7.5 5500 1000 2300 550 180 52001800 x 6000 2380 7.5 6500 1000 2300 550 180 62002000 x 4000 2380 7.5 4500 1000 2500 600 180 42002000 x 5000 3590 11.0 5500 1000 2500 600 180 52002000 x 6000 3590 11.0 6500 1150 2500 600 180 6200


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J O S T G E R M A N YDOUBLE DECK CIRCULAR MOTION (Model Code SWZ)

oTorque Power

BxA (kqcm) (kW) C G H M N1000 x 2000 1154 3.7 2300 1500 1200 405 19801000 x 2400 1154 3.7 2700 1500 1200 405 23801000 x 3000 1700 5.5 3300 1500 1200 405 29801200 x 2400 1700 5.5 2700 1700 1200 405 23801200 x 3000 1700 5.5 3300 1700 1200 405 29801200 x 3600 1700 5.5 3900 1700 1200 405 35801200 x 4000 1700 5.5 4300 1700 1300 405 39801400 x 3000 1700 5.5 3300 1900 1200 405 29801400 x 3600 1700 5.5 3900 1900 1300 435 35801400 x 4000 2380 7.5 4300 1900 1300 435 39801600 x 3000 2380 7.5 3300 2100 1300 435 29801600 x 3600 2380 7.5 3900 2100 1300 435 35801600 x 4000 3590 11.0 4300 2100 1300 435 39801600 x 5000 3590 11.0 5300 2100 1300 435 49801800 x 4000 3590 11.0 4500 2300 1450 395 42001800 x 5000 3590 11.0 5500 2300 1450 420 52001800 x 6000 4735 11.0 6500 2300 1450 420 62002000 x 4000 4735 11.0 4500 2500 1450 395 42002000 x 5000 4735 11.0 5500 2500 1450 420 52002000 x 6000 6150 18.5 6500 2500 1450 420 6200


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[ -Z] ELECTRO IAVOD J O S T G E R M A NDOUBLE DECLINE LINEAR MOTION (Model Code: SRN)

Torque PowerBxA (kgcm) (kW) C F G H M N1600 x 3000 2800 7.5 3300 1400 2100 600 220 29301600 x 3600 2800 7.5 3900 1400 2100 600 220 35301600 x 4000 2800 7.5 4300 1400 2100 600 220 39301600 x 5000 2800 7.5 5300 1400 2100 600 220 49301800 x 4000 2800 7.5 4500 1400 2300 600 180 41601800 x 5000 3600 11.0 5500 1400 2300 600 180 51501800 x 6000 3600 11.0 6500 1400 2300 600 180 61502000 x 4000 4400 11.0 4500 1400 2500 600 180 41602000 x 5000 4400 11.0 5500 1400 2500 600 180 51502000 x 6000 4400 11.0 6500 1500 2500 600 180 6150

ELECTRO IAVOD (INDIA) PVT. LTD.19/1 B, Keyatala Road, Kolkata 700029, India

Phone: ++91-33-24640156, 24643831, 2464920 Fax: ++91-33-24640103Gram: ELECZAVOD E-mail: [email protected]
mailto:[email protected]:[email protected]

vibrating screens

Documents

verylarge screens

electro lavod screens

medium sized screens

larqe sized screens

single unbalance motor

larqe number of screens

case of single shaft

correct drive