Do you know difference of TD75, DTII and DTIIA series belt conveyor?

Specifications of TD75, DTIIA, DTII series belt conveyors are the national standard of China belt machine, which represent three types of conveyors.During the model selection,the standard should be noticed. How to choose a proper type to save client’s cost? The following is the characteristics of the three types of conveyors:
TD75 series conveyor is the first standard belt conveyor, it can be used to convey small lump, granular, powder material, due to simple structure, low cost, easy maintenance, convenient maintenance, and large transport capacity,TD75 series belt conveyor becomes a common machine,it can be single or multi sets running to form a horizontal or inclined conveyor system.
DTII series belt conveyor is designed according to the components. The designers can design and assemble the conveyor according to the requirements of transportation, different terrain and working conditions,it has a wider use compared with TD75 type.
DTIIA series belt conveyor a heavy duty machine is mainly used to transport large density, large transport capacity and long transmission distance, conveyor selection is determined according to many parameters.

 

2 Parts Lead to Belt Conveyor Roller Inflexible Rotation

During the use of conveyor roller in our daily life, inflexible rotation phenomenon occurs sometimes during the operation, do you know what reasons lead to inflexible rotation? PK Machinery will introduce as follows:
1.Belt conveyor idlers manufacturing quality 
Main problems of manufacturing problems includes: bearing lacks of rigidity, roller assembly accuracy is hard to ensure.
2.Sealing, lubrication and maintenance
Since belt conveyor working environment is relatively bad, in general,operation occasion is very dusty, and the bearing sealing type has big influence on roller operation flexibility. If sealing is poor, dust can easily enter into the bearing inner which causes inflexible rotation; besides, if bearing grease adopts common calcium base grease ,it is easy to change color and become dry, the lubrication effect will decrease.

Hope above mentioned are can offer you a big help,further information,please click: www.pkmachinery.com 

 

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. 

Application and Difference of Shaft and Shaftless Trommel Screen

There are 2 kinds structure of trommel screen. One is trommel screen with shaft, the other is shaftless trommel screen. Generally both of them can be applied in some common bulk material, however, for material with special property, we must pay more attention to select a more suitable model according to the application working condition.
Trommel screen with shaft: 
The drum is installed aslope on the main frame. The motor and gearbox connect the drum through a coupling and rotates around an axis. After the material fed into the drum, the material can move forward and rotate due to the inclination and rotation of drum. The qualified material will be discharged from the bottom hopper, and the unqualified material will be discharged from the end outlet. As the material rotates in the drum, which make the blocked material bounced out of the aperture to prevent the mesh blocking.
Trommel screen with shaft is generally used for screening granular material with large density, such as: sand, coal, limestone, fertilizer, compost and mineral, etc.

Shaftless trommel screen: 
The shaftless trommel screen is installed horizontally. The drum is rotated driven by motor wheel gear or motor chain. Generally the rotate speed is very slow and the drum length can be designed longer, which can increase the screening efficiency. In the drum internal wall, there is a delivery plate ( sometimes screw type) to make the material move forward. The material which is larger than mesh size will be discharged at the end outlet, and the material which is smaller than mesh size will be discharged at the bottom discharge hopper. If the material is household garbage, we can also add a cutting tool, which can rive some plactis bags, etc. 
Shaftless tromme screen is generally used for screeninig material with small density, such as: waste, wooden chips, activated carbon, fertilizer, construction material, chemical material, etc.  

Do you Know the Function and Installation Sketch of Bucket Elevator Asbestos Tape?

Not long time ago, our Australia client has already taken delivery of 3 bucket elevators arrived and was ready to assemble on site. However, they told us they were wondering about the function and installation position of the asbestos tape during the assembly, when we received this feedback, we introduced the function and also indicated the position as follows:

Asbestos consists of fibre bundle, the fibre bundle consists of fibres in thin and long shape, which are separated from each other. Features of asbestos are described as follows:

1,highly fire-resistance

2,electric insulation

3,heat-resistance

The asbestos tape is made of asbestos with good quality which is available for sealing material for other equipment, heat-resistant material or other asbestos products.

The installation quality is also an important part when install the bucket elevator, it not only can prevent powder escape and environment pollution, but also can reduce material waste. Please check the following picture which shows the installation position: 

Hope this is helpful, further information please click: www.pkmachinery.com

Don't know how to disassembe rotary screener

Further information please click: www.pkmachinery.com

Why should we select bin above the conveying and screening equipment

Are you complaining the screening and conveying equipment you bought is not durable? Are you worried about equipment bearing capacity if you want to improve the production efficiency? Here we would like to give some tips for you:
No matter vibrating screen or belt conveyor, once they work with other corollary equipment, the joint parts are pretty crucial, the common one is hopper, it is not only because it can store material, but also can reduce the impact to screen mesh when feeding material, and increase the service life. In order to control the feeding rate of hopper uniformly, a electric or a manual gate valve can be added at the bottom of hopper, or a silo vibrator (we call it vibration hopper) to feed the material more uniform or vibratory feeder machine.
For example, one of our customers want a tilt screw conveyor, due to the small capacity, it needs to feed material to conveyor directly, we recommend placing a hopper on the screw conveyor in the purpose of storing material in order to ensure continuous working of screw conveyor and transmission efficiency of the screw conveyor.
During the use of conveying equipment, in order to improve the production efficiency of the conveying and screening equipment), it is necessary to put a hopper above the equipment. This will reduce the worker's labor intensity, the number of workers, the cost production line.