Saturday, December 26, 2015

What is the selection notice of rotary vibrating screen?

1.Size of working area: rotary vibrating screen is circular, sieve surface area will effect of screening yield, so screening efficiency and yield can be improved by increasing the screening area. So the size of the field is one of the keys to the vibration screening.
2.Material characteristics: material properties,flowability and size.
3.Construction material: because of the different sieving materials, the construction material is also different, for example: food, salt, sugar and other related food industries, the whole machine material is SUS304. One reason is that hardness,thickness and wear resistance of 304 material are better, besides, polished stainless steel is bright like a mirror, the surface is clean and health, maintenance is very convenient which do not affect the material quality after screening. If the material is chemical, metallurgical and other raw materials, you can choose Q235 material, which not only save cost but also not affect the use.
4.Screen mesh can be divided into two kinds: stainless steel and carbon steel.
The shape and size of rotary vibrating screen are different generally based on the actual application and the on-site condition, and can be designed according to the requirements of clients to meet special circumstances. Common types of rotary vibrating screen: XZS-800mm, XZS-1000mm, XZS-1200mm, XZS-1500mm, XZS-1800mm, etc. 

Friday, December 25, 2015

The Mainly Tips to Install the Vibrating Feeders on Different Production Line

Vibrating feeder is usually used for uniform feeding, cloth according to be installed on different production line to ensure the stability of the connection between devices. When the feeder model is small, the driven device can be set two vibrating motors, if the model is large, the driven device can be set motor with vibrator exciter.

1.According to the customer's site environmental conditions and layout can be designed feeder hanging and sitting two installation methods.

When it is used in the following copper warehouse, hoppers, etc., there is no suitable feeder space when installed base.Then the four corners of the feeder can be used to hang in suspension under the hopper, space-saving layout can effectively feed between warehouse and by feeding equipment.

2.If the customer has requested, vibrating feeder can be designed to sit-in installation, installation to the actual arrangement of the embedded foundation.

3.If you feed a very fine dust and other materials used in the particle size uniform, vibrating feeder can be designed to seal cover with dust ports, link to the system filter, dust sealed to protect the environment.

4.If you have other special requirements, this feeder can be non-standard design process to meet some requirements.

More information,welcome to contact us via info@pkmachinery.com or www.pkmachinery.com
vibrating feeder

Monday, December 21, 2015

How to Distinguish the Difference between YA and YK Circular Vibrating Screen?

How to distinguish the YK and YA circular vibrating screen during the customer purchase the equipment?Is it really suitable for your company?Here,the following passage will introduce the difference between them detailed.Hope you have a better understanding.
YK and YA are the two series of circular vibrating screen.YK series circular vibrating screen adopts eccentric block,and YA series adopts eccentric shaft.

YA circular vibrating screen

YK series circular vibrating screen, while retaining the original YA type shaft eccentric vibrating screen features, has the following significant advantages:
1.The vibration exciter adopts the form of eccentric block,which can not only make the eccentric weight if the exciter increase,but also can adjust the excitation force randomly.
2.The screening machine structure tends to simplify,improving the level of the manufacturing process and assembly precision equipment.
3.The use of the flexible coupling cross shaft universal joint shaft or rubber couplings, etc., stable operation.
4.With higher screening efficiency, greater processing capacity.
5.Long service life and using cycle.
6.Easy to maintenance and operation,high running efficiency 

YK circular vibrating screen

Saturday, December 19, 2015

Good Helper for Soybean Classification --Linear Vibrating Screen

The soybean (US) or soya bean (UK) (Glycine max)[2] is a species of legume native to East Asia, widely grown for its edible bean which has numerous uses. The plant is classed as one of the main oilseed by the UN Food and Agricultural Organization (FAO).
Soybean is oval and sphere with yellow, light green, black and so on. The most common uses of soybeans are to do all kinds of bean products, extract soybean oil, ferment soy sauce and extract protein. Soybean residues or soybean meals are commonly used for livestock feed. Linear vibrating screen can play a powerful role in soybean classification and seed selection.
 
motor

Linear vibrating screen for soybean classification adopts double vibration motor drive. When two motors are synchronous and counter rotating, exciting forces produced by eccentric block in the parallel and motor axis direction are offsetting. And the forces in the vertical and motor axis direction overlay a joint force, so that the motion carve of linear vibrating screen is a straight line. There is a angle between two motor axes and screen surface. The soybeans are thrown up and jump forward to do linear motion under exciting force and the gravity of soybeans. Oversized and undersized soybeans with different specifications discharge from respective outlets to achieve the purpose of screening and grading.
 
linear vibrating screen

We use screen with two layers to illustrate the soybean classification. The first layer is used for removing sundries in soybeans, and then the soybeans fall into the second layer. Oversized run to the outlet along with the vibrating force, and undersized impurities discharge from the third layer.
Linear vibrating screen for soybean classification has features of high quality, large capacity, stable operation, easy to operate and maintenance, fully enclosed structure, non dust overflow and so on. It is widely used in screening dry powder and granule materials in chemical, food, plastic, medicine, metallurgy, glass, construction, grain, fertilizer, abrasive, ceramics industries, etc.

Tuesday, December 15, 2015

The Reasons for Vibrating Screen Material Accumulation

The Reasons for Vibrating Screen Material Accumulation

During use, the vibrating screen surface may occurs the material accumulation phenomenon. So what causes the accumulation of material is it, here PK Machinery engineer based on years of experience in analysis of what can be attributed to four issues:
1.Make sure whether the vibrating screen mesh choice has problems or not, sieve mesh network is too small will cause low permeability material.
2.Check the placement of vibrating screen ground whether is flat, spout material will affect the operation of high trajectory, causing the material to one side.


screen mesh
3.Screen mesh and the discharge port whether is horizontal or is too high, under normal circumstances should be level or higher than about 6mm, depending on the material discharge port design are not the same height.
4.Vibration motor angular adjustment if there are problems, improperly adjusted the angle of the vibration motor can also cause material accumulation phenomenon, the smaller the angle on the screen surface material spread outward run faster, whereas angular displacement of the General Assembly so that bulk material outward open slow. If you are under strict requirements for screening accuracy, the motor angle should not be too small, so as not to affect the accuracy of screening, in general, the factory motor shaker angle of 45 °, the user can also special screening process based on its material requirements will adjust the vibration motor angle to 100 °, the mesh material is centralized.

Any question,welcome to contact us via info@pkmachinery.com or www.pkmachinery.com
linear vibrating screen

Monday, December 14, 2015

How to choose the suitable vibration motor for the vibration machine?

Vibration motor has many types and models with a wide application,it is usually applied with the feeder, vibrating screen combination. The vibration motor is very important in the vibration machine. It directly determines the working efficiency of the vibration machine.The vibration mechanical vibration motor selection steps are as follows:
A.According to the operating requirements, confirm the required vibration of the frequency (r/min) and the amplitude Ym (mm).
Such as the six vibration motor (n=960r /min) can drive the vibration chute, vibration feeder, vibration mill, vibrating screen etc.
B.According to the structure of the vibration machine itself, get the vibration weight G (kg) and calculate the required vibration force Fm (N) .
C.According to the vibration of the operation to get Fm, you can get the model of the vibration motor, please pay attention to the exciting force FH is larger than Fm.
D.Design the overall structure, and calculate the actual vibration parameters, after the calculation, if the vibration motor is too large or too small, motor model should be re-selected.
E.Design of vibration isolation system. 

Saturday, December 12, 2015

How to solve problem of damp material blockage occurs in vibrating screen ?

Vibrating screen is a kind of high precision and fine powder screening equipment, with the characteristics of low noise, high efficiency, small size and quick screen mesh replacement,it adopts fully enclosed structure which is suitable for particles, powder, liquid, etc. Clients ever said wet material blockage occurred in vibrating screen,here PK Machinery will list some suggestion,hope it is helpful.
1.Increase the excitation force of vibration motor and increase the amplitude.
2.Increase the vibration frequency, please use the high-frequency vibrating screen.
3.Diluted with water to increase the liquidity of material.
4.Replace the screen mesh regularly to avoid damp material blockage.
5.Manual work assisted cleaning up the screen mesh blockage.
6.Equip with cleaning device, such as the brush.
Hope above mentioned are workable, if you have the other problems about vibrating screen,welcome to contact us freely.
Screen blocking scheme
vibrating screen