Troubleshooting for Gyratory Screen

As one of our main product, gyratory screen has been supplied to many plants all over the world and also enjoys a good reputation because of its superior design and quality. Gyratory screen is widely applicable to chemical, food processing, refractory materials, building materials, activated carbon, food, PVC powder and other fine materials.
However, during the operation, we may meet some problems, here PK Machinery will introduce the breakdown reason and method in detail. 

Breakdown	Reason	Solution
V-belt heating up	V-belt looseness Through of belt is broken or the surface is rough	Loose the bolt which fastens the motor, adjust the distance between motor and belt pulley Check and repair the belt pulley
Bearing heating up	The grease is excessive or shortage or the quality is bad Bearing is broken Main shaft bends or the inertial force is not balanced The bearing cup is not compatible with other parts Belt is too tight Overload working for a long time	Change the grease Change bearing Correct the main shaft Change the part which coordinate with the bearing Adjust the tightness of the V-belt Reduce the feeding rate
There is no force for motor	Two phase electricity Circle short for the winding Overload working for a long time	Power on the lost phase electricity to ensure it runs under 3 phases Inspect the motor Keep the screen working under the rated load
Fail to start the motor	Low voltage Electrical wiring is too thin Fuse is broken	Start the screen once electricity is normal Change the electrical wiring Change a proper fuse
Violent or wiggly vibration	The rotation shaft bends Bearing is broken	Replace or correct the shaft Replace the bearing
The unqualified size material mixed in the finished material	Screen mesh is broken Screen cover or seal bar is loose	Renew the screen mesh Press the cover and seal bar
Capacity declining	The moisture is too high, block the mesh The opening size is not suitable Rotation speed is low or the V-belt is loose Feeding rate is low The rubber ball is worn out	Reduce the moisture of material Renew the screen mesh Check the belt pulley and the tightness of belt Increase the feeding rate Renew the feeding rate

Gyratory Vibrating Screen Introduction

Is the #gyratory #vibrating #screen suitable for you?Do you need such a convenient machine?Come and learn something about it,you will get a lot of things! 

Gyratory Screen is a new developed equipment particularly for urea .The main function is to provide accurate separation of materials without product deterioration, thereby resulting greater product yields at higher production rates.

►Features

1.Reasonable design,simple structure,stable operation

2.Fully enclosed and energy-saving design

3.Self-cleaning device (bouncing balls) of each layer,anti blockage

4.No vertical movement,screen cloth with long service life

5.Fully enclosed structure, no dust pollution

►Advantages

1.All components are easily accessible and removable for ease of disassembly and cleaning.

2.No vertical vibration, longer life span of mesh (6 – 12 months).

3.Every layer is installed an anti-blocking and cleaning facility and able to clean mesh while sieving. 

4.Exterior is designed for easy cleaning. Exterior permanent joints are either welded continuously, or strip welded and filled with epoxy.

5.Lower headroom permits operation in confined areas, reducing cost of building and maintenance.

6.Less conveying equipment is required for elevating material to the feed point.

7.Greater product yields at higher production rates.

8.Low energy consumption.

9.High screening efficiency.

10.Create low noise pollution.

It can be used in chemical industry, food processing, refractory materials, building materials, activated carbon,food,PVC powder and other fine materials.  

I believe if you choose it, it will bring you a big surprise and high efficiency! If you want to know more,please contact me!

Skype:wang.betty13

E-mail:kewang808@gmail.com

I am always here to help you!

An Earthquake Material of Equipment-----Vibrating Platform

Vibrating/Shaking Platform is the device mainly used for reducing air and crannies among the material to compress the material; it is always used with silo.Is it good for your company? Do you want to have a try?

Vibration Platform is widely used in steel, foundries, concrete, food processing, plastics, construction, chemical and bulk materials industry. If you own such an equipment, it will bring you a great surprise!

►  Working Principle

Unbalance motors make the platform to oscillate. An oscillation insulating elastic suspension connects the top and bottom part of the platform. The amplitude of the oscillation can be changed by adjusting the unbalances on the unbalance motors during standstill. Besides, the vibration frequency can be changed during the operation time if an electric control with frequency inverter is being used. Both parameter have influence on the vibration intensity and allow an adaption to the different scopes. 

►  Features
1) Durable
2) Strong power
3) Stable running
4) Simple structure
5) Reduced maintenance

►  Advantage

   1.Durable

   2.Strong power

   3.Stable running

   4.Simple structure

   5.Reduced maintenance

   6.Noiseless

   7.For concrete and construction applications, it can reduce the need to trowel during pours.

   8.Reduce or eliminate the need to hand finishing to remove flaws caused by trapped air.

   9.Dramatically improve product quality and reduce defects without increasing cost.

   10.Properly fitted with the motors and other parts to ensure smooth functioning.

►  Application

Vibration platform is used for:

   1.Compaction, detachment and aeration of bulk materials

   2.Testing of welded joints in automobile industry and delicate joints in electronic industry

   3.Effective packing of fluffy and difficult to handle powder in chemical and pharmaceutical industry

   4.Proper flow of powder in dies and moulds to get perfect moulded parts

It can apply on steel, foundries, concrete, food processing, plastics, construction, chemical and bulk materials industry. 

For more information, please contact me!

Skype: wang.betty13

E-mail:kewang808@gmail.com

The technical precision screening enough do vibrating screen

 1. Screen mesh plug (to increase the anti clogging device).

 2. Cast material moisture into the vibrating screen is too large (viscosity, after appropriate input vibration after drying sieve).

 3. The vibration sieve surface feeding uneven (add the material divider)

 4. The vibration sieve surface material layer is too thick (increasing material divider, control the feeding amount)

 5. Often to sieve sieve load and vibration reducing vibration cleaning gently

 6. Change the screen box angle

 7. Mediation of the vibration sieve feeding quantity

 8. Tension screen, narrow transmission leather

If you want to know more information, please contact me, I am here to help you!

skype:wang.betty13

E-mail:kewang808@gmail.com

Analysis of field application of starch vibrating screen extension

 As the name suggests, vibrating screen is used for the separation,classification and sorting of starch. And the main equipment is rotary vibration screen.

The advantages are as follows:

1.The mesh number of material with screened is small that can achieve micro powder sieving. There is dust cover in the top layer so that can prevent the dust, protect environment and improve the working environment of workers.

2.Outlet of the machine can be adjusted the direction within the scope of 360 degrees in a horizontal plane based on the axis in the center of the screening equipment.

3.Screen machine has low energy consumption and can save resources.

The reasons and preventive measures of blocking of vibrating screen

It is a common problem that vibrating screen will appear the phenomenon of blockage of sieve.There are many reasons that cause the blockage of sieve.The reasons are as follows:

 
1.Physical reasons:Many granules are close to separation point; the water contentof material is high; it will happen the phenomenon of static electricity.

2.Material factors:The material is fibrous; there are many flake-like material.

vibrating screen mesh

3.Sieve desigh:The hole shape design is unreasonable which isn’t meeting the requirements; the silk to weave sieve is too thick.

Measures to solve the blockage of sieve

1.Control the water content of material:When the water content of material is more than 5% and there is no any other methods to dry the material, it should select proper screen surface and sieve mesh; if the water content of materialis more than 8%, it should adopt dewatering screen to meet our needs.

2.Classify material:Before screening more flake-like material, what we should do is chaging the way to crush material; if the material size is small and it contains more pelitic material, we need to pay much attention to water content. 

If you want to know more about us, please give focus on us.

•             Tel: +86 373 579 9198
• Fax: +86 373 507 1699
• info@pkmachinery.com
• Address: 289 Yellow River Road, Xinxiang City, Henan Province, China

Maintenance of Linear Vibrating Screen

Linear vibrating screen is one of the most commonly used vibration screen. Its maintenance and repair is essential, as good maintenance strategy and maintenance method can effectively prolong the lifespan of linear vibrating screen. So, let us take a look at the maintenance strategies and maintenance methods of linear vibrating screen.

The maintenance strategies of linear vibrating screen can be divided into three phases, before use, in use and after use.

Maintenance before use: linear vibrating screen should equip with electrical protection device; for initially use, anchor bolts should be checked each time before using in order to prevent loosening; check for damage on the screen mesh etc..
Maintenance in use: check the rotation of motor, if does not meet the requirement, adjust the power phase sequence; check unusual of the vibration; examine the stability of current.

Maintenance after use: periodically check the lubricate situation of machinery components, every two weeks operation, need to add the lubricating oil; after a total operation of one thousand five hundreds hours, check the wear of bearing; if long time do not use it, insulation resistance should be measured before use.

The application of vibration source of vibrating screen

The application of vibration source of rotary vibrating screen / linear vibrating screen

Notices:

1.When the excitation power and electricity are no more than specified numerical value, it can be operated at the largest exciting force. 

2.No operating without protective cover. 

3.There is a specially-made putty in the terminal junction box. It can be took out when maintenance and got back after maintaining. 

4.It should check the following items when operating: 
     A .Whether there is enough lubricating grease in the bearing; 
     B .Whether the installation of vibration motor and fastener are firm; 
     C .Whether the link of power cable is normal; 
     D .Whether the operation is normal. 

5.We need to pay much attention to the operation of vibration motor during working. If it appears the phenomenon of overheating and oil leakage, we must stop the machine to inspect at once. 

6.After first use or suspending long time, if using the vibration motor once again, we should measure the insulation resistance of coil to ensure its numerical value is more than 20MΩ.

The vibration source of rotary vibrating screen.

The vibration source of linear vibrating screen.