显示标签为“conveyor belt”的博文。显示所有博文
显示标签为“conveyor belt”的博文。显示所有博文

2016年2月1日星期一

The application of conveyor belt fluid coupling

The application of conveyor belt fluid coupling

Fluid coupling is a used fluid transmission component. Motor drives coupling pump wheel rotation, pump impeller blade agitates intracavitary working liquid, under the centrifugal effect,pump wheel turns mechanical energy into liquid energy, then passes to the turbine blades, turbine passes the absorbent liquid energy to the machine.
Fluid coupling has the function of flexible transmission,slow down the impact and the isolation of torsional vibration, prolong the start-up time, reduce the starting current,make the motor light load start-up, solve the problem of heavy large inertia load start-up difficulties and protect the motor when overloads, energy and power saving effects are remarkable.
On the conveyor, fluid coupling has the function of connecting motor and reducer ,it replaces the mechanical coupling. The belt conveyor fluid coupling has two effects:

1.Overload protection

If the belt conveyor is overload, fluid coupling slip frequency increases, working fluid warms up, fluid coupling will spray without burning motor to a certain temperature. Of course sometimes coupling will be installed with a temperature control device, when work liquid superheats, temperature control device can control the motor and cut the power cut to protect the motor.

2. Flexible-start

When motor starts,belt conveyor starts slowly and acceleratedly , this can reduce the grid big impact to make the motor start up in light load. At the same time,it can reduce the effect of belt tension,protect belt and prolong life, especially under the heavy load start-up.


2015年9月15日星期二

Maintenance Tips of Conveyor Belt

Maintenance Tips of Conveyor Belt

Conveyor belt is the most important part in the belt conveyor. It carries almost all of weight of materials. So it is better to keep the belt in a good condition and maintain it in daily life.


In the use and storage of conveyor belt, it should kept clean, avoid direct sunlight or exposed to rain and snow, prevent contact with acid, alkaline, oil, organic solvent and other substances, and also located at least one meter away from heating device. The temperature of the storage should maintained at between 18-40 ℃ , the relative humidity should maintained between 50-80℃.In the storage period, conveyor belt should be placed in rolls, but not folding; in the placement, it should turn-over once in every seasons. Different types and standards layers number of conveyor belt should not be connected together while used, the best connection is used the bonded process. Type, structure, standard, number of layers for conveyor belt should be used according to the reasonable choice.

maintenance of conveyor belt
 
Conveyor belt operating speed generally not more than 2.5 m/s. For large lump size, material with large abrasiveness and fixed unloading device should use low velocity. The relationship between driving pulley diameter and coating layer of conveyor belt, supporting of driving and bend pulley and also requirement for trough angle of idler roller should according to the design specification of conveyor belt, reasonable selection. Direction of feeding should along the operating direction of the conveyor belt, use chute in order to minimize the impact of material fall on receiving belt, reduce material’s free fall distance. The feeding section of conveyor belt should shortened the spacing of idler and use absorber idler as discharge section. The belt should use striker plate with moderately soft, to avoid the rigid striker plate will scrape the belt surface of conveyor belt.

coking coal belt conveyors

2015年9月14日星期一

Useful tips of selective purchasing and storing conveyor belt

Useful tips of selective purchasing and storing conveyor belt

How much dou you know about the selection and storage of conveyor belt? Here PK Machinery will analysis some useful tips for you. Hope it can help you.


Selective purchasing
1.Describe the name and characteristics of specific materials accurately, specially the particle size, temperature and if acid ,alkali resistance or special requirement. For instance, illustrate the temperature used for the heat resistance conveyor belt.
2.Describe the specific application areas, requirement specification (width, length, number of piles, thickness, etc.), especially the temperature used and convey capacity of heat resistance conveyor belt.

Storing
1.In the process of conveyor belt transport and storage , it should keep clean and keep it from direct sunlight ,rain and snow, prevent it from contacting with acid, alkaline, oil, organic solvent and other substances, and also locate it at least one meter away from heating device. 
2.The temperature of the storage should be maintained between 18-40 ℃ , the relative humidity should be maintained between 50-80℃.
3. In the period of storage, conveyor belt should be placed in rolls instead of folding and it should be turned over once every season.


 tips of selective conveyor belt