circular vibrating screen

289 YELLOW RIVER ROAD,XINXIANG CITY, HENAN PROVINCE

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Vibrating ScreenCircular Vibrating Screen


Tel: +86-373-5799198Fax: +86-373-5071699

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Circular Vibrating ScreenCircular vibrating screen, the working principle is in nearly circular trajectory, and therefore it is called as

circular vibrating screen.It is classified into YA type (exciter of axis eccentric )and YK type (adjustable

vibrator of eccentric block).It is widely used in metallurgy, mining, coal, building materials, electricity,

chemical plant etc.


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Content

1. Introduction............................................................................................. 1

2. Product Features......................................................................................2

3. Working Principle.....................................................................................3

4. Product Application................................................................................. 4

5. Technical Parameters...............................................................................5

6. Draft......................................................................................................... 7

7. Structural Component............................................................................. 8

8. Failure Analysis and Solution...................................................................9

9. Product Installation................................................................................11

10. Maintenance........................................................................................13

11. Safety Regulations................................................................................14

12. Product Certification............................................................................16

13. Company Profile...................................................................................17

14. Contact Us............................................................................................18

15. Customer Feedback Form....................................................................19


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1

1. Introduction

Circular vibrating screen, the working principle is in nearly circular trajectory, and

therefore it is called as circular vibrating screen, it is a new multiple stage of vibrating

screen which has the classification of single or double layer and light or heavy type.

The machine is classified into YA type and YK type, it has high screening efficiency,

low energy consumption, the machine can operate with large, medium and small size

of material particles at the same time. It has advanced technical parameters, great

vibration strength, large capacity, high efficiency, easy screen replacing, easy

installation and maintenance.


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2. Product Features

1. Modern design, high screening efficiency.

2. Long life span, not easy to be clogged, simple structure with easy screen replacing.

3. Less noise produced, low failure rate, easy maintenance.

4. Low cost, less components.

5. Screen is assembled with several plates, saving resources when changing partial

plates.


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3. Working Principle

While the vibrating screen is working, exciting force is produced by uniaxial exciter of

the machine which is driven by a common vibration motor. It will then pass through a

screen box and enter into the screen mesh cloth area. Materials are forced

continually to sieve through the screen mesh’s area by the vibration created from

uniaxial exciter in circular trajectory. The purpose of material classification will be

achieved through this action.

There are two supporting forms: suspension support and pedestal support.

Suspension support, screen area is fixed on the screen box, and the box is suspended

or supported by the spring, the bearing of spindle is installed on the screen box,

spindle is driven at high speed by the belt wheel. Eccentric disc is installed on the

spindle, rotation of spindle will generate centrifugal force, the screen box that can

vibrate freely will produce a vibration with circular trajectory.


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4. Product Application

Circular Vibrating Screening is widely used in metallurgy, mining, coal, building

materials, electricity, chemical plant and other industries field which is involving

materials classification, especially in the field of metallurgical industry, but also the

coking plant and mineral processing plant.


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5. Technical Parameters

List of YA Circular vibrating screen’s technical parameter

Model Area Angle Material Capacity FrequencyDouble

AmplitudeMotor

(m2) (°) Size (mm) (t/h) (r.p.m) (mm) Model Power (kW)

YA1236 4.3 20 ≤200 40-250 730 8-11 Y160L-8 7.5

2YA1236 2*4.3 20 ≤200 40-250 730 8-11 Y180L-8 11

YA1530 4.5 20 ≤200 42-260 730 8-11 Y180L-8 11

2YA1530 2*4.5 20 ≤200 42-260 730 8-11 Y180L-8 11

YA1536 5.4 20 ≤200 51-300 730 8-11 Y180L-8 11

2YA1536 2*5.4 20 ≤200 51-300 730 8-11 Y200L-8 15

YA1542 6.3 20 ≤200 60-350 730 8-11 Y180L-8 11

2YA1542 2*6.3 20 ≤200 60-350 730 8-11 Y200L-8 15

YA1836 6.5 20 ≤400 61-400 730 8-11 Y200L-8 15

2YA1836 2*6.5 20 ≤400 61-400 730 8-11 Y225S-8 18.5

YA1842 7.6 20 ≤400 80-800 730 8-11 Y200L-8 15

2YA1842 2*7.6 20 ≤400 80-800 730 8-11 Y225M-8 22

YA1848 8.6 20 ≤400 80-680 730 8-11 Y225S-8 18.5

2YA1848 2*8.6 20 ≤400 80-680 730 8-11 Y225M-8 22

YA2148 10 20 ≤200 180-630 748 8-11 Y180M-4 18.5

2YA2148 2*10 20 ≤210 180-630 748 8-11 Y180L-4 22

YA2160 12.6 20 ≤200 230-800 748 8-11 Y180M-4 18.5

2YA2160 2*12.6 20 ≤200 230-800 748 8-11 Y180L-4 22


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List of YK Circular vibrating screen’s technical parameter

Model Area Angle Material Capacity FrequencyDouble

AmplitudeMotor

(m2) (°) Size (mm) (t/h) (r.p.m) (mm) Model Power (kW)

YK1230 3.6 15-30 ≤200 233 970 6-10 Y160M-6 7.5

2YK1230 2*3.6 15-30 ≤200 233 970 6-10 Y160L-6 11

YK1445 6.3 15-30 ≤200 272 970 6-10 Y160L-6 11

2YK1445 2*6.3 15-30 ≤200 272 970 6-10 Y200L-6 18.5

YK1645 7.2 15-30 ≤200 310 970 6-10 Y180L-6 15

2YK1645 2*7.2 15-30 ≤200 310 970 6-10 Y200L-6 18.5

YK1845 8.1 15-30 ≤200 350 970 6-10 Y180L-6 15

2YK1845 2*8.1 15-30 ≤400 542 740 12-14 Y225M-8 22

YK2045 9.0 15-30 ≤200 388 970 6-10 Y180L-6 15

2YK2045 2*9.0 15-30 ≤400 582 740 12-14 Y225M-8 22

YK2060 12 15-30 ≤200 388 970 6-10 Y200L-6 15

2YK2060 2*12 15-30 ≤400 582 740 12-14 Y250M-8 22

YK2445 10.8 15-30 ≤200 700 740 6-10 Y225S-8 18.5

2YK2445 2*10.8 15-30 ≤400 700 740 12-14 Y225M-8 30

YK2460 14.4 15-30 ≤400 700 740 12-14 Y225M-8 22

2YK2460 2*14.4 15-30 ≤400 700 740 12-14 Y280S-8 37

YK3052 15.75 15-30 ≤400 875 740 12-14 Y250M-8 30

2YK3052 2*15.75 15-30 ≤400 875 740 12-14 Y280S-8 37


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6. Draft

1. Screen box 2. Spring

3. Electrical motor 4. Vibration exciter

5. Supportive stand 6. Screen mesh


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7. Structural Component

The main parts of circular vibrating screen machine consists of screen box, screen

mesh, vibrator, damping spring device, chassis and other components. It is using

cylindrical eccentric axle type of vibration exciter and eccentric block to adjust the

vibration amplitude and it

is mounted on the screen

box. The rotation process is

initiated by a electrical

motor through a

triangle-belt, centrifugal

force is created and this will

result the screen box to

vibrate. Besides that, the

side panels of the screen

machines are made of high

quality steel whilst the base

of the side panels, beams,

and exciter are made of

with high strength bolts or

ring groove rivet connection. Vibrator is mounted on the top of screen box side

panels, rotation is conducted by the electrical motor via its coupling, centrifugal force

is created which will initiate the screen box to vibrate.


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8. Failure Analysis and Solution

Reason analysis

(1) Imbalance pressure acting on the screen mesh

Imbalanced materials input: this is because feeding belt is always slid off or

accumulated with the remains input by its funnel, causes overload input on one side

of the screen mesh while the other side is in almost no load operation. Therefore,

this will increase the damage possibility on the screen mesh.

(2) Materials have long residence time

As the materials moving slowly on the screen, the screen surface area will

accumulate excessive materials, causing the circular vibrating screen always in under

overload condition which will greatly bring a lot of damages such as screen damage,

flexible couplings tear off, spring damage, cabinet cracking.


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Solution

(1) Addition of sub feeder

Addition of a sub feeder at the feeder belt, the sub feeder is flexible in moving

according to the sliding condition of feeding belt which will cause the input materials

to be distributed equally into both side funnel and enter into the circular vibration

screen. This can result in equally distribution into both side funnel and it is a good

way to solve the problem of imbalance materials input.

(2) Increase in inclination of the screen surface, increase the speed of the feeding

belt

With the slow moving speed of materials on the screen’s surface, it will result in

accumulation of the excessive materials, pressure will create to the screen surface.

Therefore, the solution is to minimize the residence time of the materials to stay on

the screen mesh by adjusting the angle of the circle vibrating screen under the fixed

feeding rate and increase inclination of the circle vibrating screen so that can

increase the transporting speed of the materials.


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9. Product Installation

1. Installation step：

(1) Read carefully and clearly understand on the product specification and

installation instructions.

(2) Counted carefully on all the

received components in

accordance to invoice.

(3) Install work platform and

screen body pillar.

(4) The body of the screen is

hanged on the four supportive

pillars which are above the work platform, make sure the axis of the damping is

perpendicular to the work platform.

(5) Install the feeding chute at every stage.

(6) Check on the surrounding of the machine’s fixed structure and make sure it has

approximately 30-50 mm of the empty space to the vibration screen to prevent any

collision waiting to happen.


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2. Commissioning step：

(1) Connect to the power supply, warm up the machine for around 10 min，check

carefully and make sure there is absent of abnormal noise and the amplitude is

normal.

(2) After everything is okay, run the trial operation without any material for 1 hour.

After that, check all the fasteners if there are in loose condition.

(3) Put in with materials for load test, check if the amplitude has reach 8 mm，if there

is something wrong with the amplitude, adjust both sides counterweight of the

screen box ( Attention: both sides of counterweight should change in the same time

with the same number and specification)

(4) All of the records should be noted down during test run, check it out if it is in

compliance with international standard. The load test have to operate for 4 hours，

after that stop the operation. Before stopping the operation, the input process has to

be stopped first and make sure there is nothing on the surface of the screen.


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10. Maintenance

1. Always keep clean working environment.

2. High temperature lubricant grease should be used for vibrator bearing, apply 2

times every week for the first month , after that apply 2 times for every month.

3. Often check on vibrator flange bolts,

screen plate fixing bolt and support

bolts are not in loose condition, so

that it can always maintain the

pre-tensioning force.

4. The maintenance should be taken

when the vibrating screen is

connected for three months.

(1) Clean the vibration device, add

lubricate oil into all the lubricating

points.

(2) Clean the machine.

(3) Check on the wear condition of the screen, immediately change it if there is

any damage on it.

5. The vibrating screen must be checked and maintained after 1 year operation.

(1) Dismantle the motor terminal box, check on the insulator cable and the

insulation between the insulator cable and metal box.

(2) Clean the vibrator bearing with new lubricant grease .

(3) Check on all the wearing part，change it immediately if there is any damage of

it.

(4) There is necessary to have a test run after all the maintenance procedures

have done，any requirements may refer to foregoing of the product instruction.


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11. Safety Regulations

1. Before on duty, all related staffs must wear with personal protective equipment.

2. Before the operation of vibration screen, check around the machine if there any

obstacle which may cause interference during product operation and make sure

the drive system is in normal

and reliable condition.

Furthermore, check on the

screen box, screen plate and

spring if there is any fracture

and make sure rivets and bolts

must be not in a loose

condition.

3. Screen machine idling which

first is starting the machine,

then operate a complete

operation process. In the mean time, check it out if there is any abnormal sound

and phenomenon. Check also if there is any jumping off spring from the machine

when the machine is switch off.

4.Check out the stability of the operation process when the screen machine is idling,

and focus on the temperature of the vibration motor, the temperature should not

exceed 70°C

5. The process of materials feeding must be in uniform, so that the materials are

distributed uniformly on the screen’s surface. If there is deviation in materials

feeding, adjust the feeding point, support device, spring, and the excitation force

from the vibration motor.


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6. During the operation, always check with the motor, temperature of vibration

bearing, test on the screen if there is abnormal sound, stopping the process

immediate if there is any abnormal found out.

7. Check on the vibration condition of the screen to see if the amplitude is within the

specified range

8. Stop materials feeding

when the screen machine is

stop operating, switch off the

motor after the screen

surface is completely cleaned

without any materials on it,

clean up all the residue on the screen after the machine is switch off.

9. After that, switch off the power supply, clean the site and hygiene equipment.


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12. Product Certification

BV ISO CE

TUV SGS Latter Patent


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13. Company Profile

Henan Pingyuan Mining Machinery Co., LTD. is a professional manufacturer forVibrating Screen &Feeder, Bucket Elevator, Belt Conveyor, Screw Conveyor, ScraperConveyor and all kinds of spare parts such as Roller, Motor, Rain Cover, etc.

Our company Foreign trade department

External view of workshop Internal view of workshop


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14. Contact Us

Address：289 Yellow River Road, Xinxiang City, Henan Province, China

Postcode：453700

Phone number ：0373-5799777 5799888

Fax number：0373-5071699

Email address：[email protected]

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15. Customer Feedback FormCompany’s information

Name of the company

Address

Name of the project

Name of the equipment

Number of the equipment

Contact information E mail

Phone number Fax number

Properties of materialsName of thematerials

Materialsconcentration

t/m3 Water content %

Viscosity Mobility

Wear Resistivity Corrosivity

Temperature Size of particle

Design ℃Minimumdiameter

mm

Operation ℃Maximumdiameter

mm

Distribution of the particle %

Mechanical configurationHandling capacity t/h

Conveying distance m

Angle of inclination °

Angle of lifting m

Layout Horizontal or inclined

Placement Outdoor or indoor

Source of feeding

Loading area

Material quality Q235, SUS304, 316L or Others

Working duration Non stop work(24/7) / medium(16/5) / Intermittent (8 hr/day) / or?

Voltage V Frequency Hz


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Note:


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circular vibrating screen