Maintenance Method of Portable Belt Conveyor in winter

In winter, portable belt conveyor will work in the outdoor and suffer from rain and snow, in this way, what shall we do to maintain portable belt conveyor to achieve the purpose of long-term steady operation?

1. Maintenance of motor
Concerning the operation process of portable belt conveyor in winter, motor will be the main part we should protect. Although motor damage rate is very low, if motor overloads it will still damage. As we all know, temperature is pretty low in winter, motor lubrication condition is not very good. Therefore, the motor of portable belt conveyor should be checked and maintained regularly .

 

2. Overall antirust processing for the whole machine
Though before leaving factory, portable belt conveyor was already painted again and again, after checking, we found that most of the conveyors are still rusty. This is not the problem of painting, but is the maintenance service of equipment. Especially during winter season, there is lots of rain and snow. In many cases, portable belt conveyors are not properly covered in raining and snowing environment . So in the long run, even using the best painting and steel ,the service life of portable belt conveyor will still reduce. 
In conclusion, the suggestion is to make the conveyor covered and keep the conveyor away from rain and snow to extend the service life.

 

3. Maintenance and replacement of spare parts
Conveyor roller is the most used spare parts of portable belt conveyor, so we need to check the wear condition and bearing using condition of roller frequently. Concerning the damaged roller, you should replace timely.
For conveyor belt, please clear up the belt surface and the accumulated impurities timely in order to avoid long time abrasion.

Site Application of Trommel Screen and Inclined Belt Conveyors

Trommel screen and inclined belt conveyors is widely used in conveying and screening industry.They are specifically for processing bulk materials such as coal, construction material, stone, sand, compost, woodchip, soil and related products.

In real manufacturing process, trommel screen and inclined belt conveyors are the most important parts in the production line. At the same time , it is in response to customer demand for handling larger volumes. Also, as modern production system, it can not only save energy and optimize throughput requirements, but also improve the efficiency of production and provide suitable solutions across a wide range of sectors for our customers. It is also another option to our customers to save more costs.

We have been in manufacturing belt conveyor, vibrating screen, bucket elevator, screw conveyor, scraper conveyorfor many years. With the development of our company, we will manufacture higher quality products to meet our customers’ requirements better.

Common Failure Diagnosis and Troubleshooting of Motorized Pulley(1)

The motorized pulley should be checked regularly and eliminated trouble timely. The common failure and troubleshooting of motorized pulley will be introduced as shown as below:

1.The current of motor is low, and the cylindrical body doesn’t rotate.
Troubleshooting method: Motor should be checked regularly to know whether it is normal or not. If motor is normal, it indicates that there might be broken in coupling pin shaft ,after changing the coupling pin shaft and start the machine to prevent the more severe consequences.

2.Oil leakage in pulley ends and coupling rotating parts. 
Troubleshooting method: Tighten the spring coil or replace the grease seal.

3.Oil leakage in end cover. 
Troubleshooting method: Tighten the oil plug and change to grease resistant rubber gasket.

4.Oil leakage in the connection parts of cover and cylinder body. 
Troubleshooting method: Check whether the connecting bolts are loosen or not and check if the ventilation plug and air outlet are blocked, unclogging it or clean it if it is blocked.

The Development Trend of Belt Conveyor

1. Larger scale
It includes several aspects, such as large transmission capacity and single equipment with long length .Now the world's longest length of hydraulic conveying equipment is more than four hundred kilometers, the longest length of belt conveyor is almost 15 km, and there is also a belt conveyor which can connect two cities together. The world's major developed countries are also researching and studying conveyors with long distance and large capacity of continuous conveying ability structure.

2.Higher performance and better functions
Working in the extreme temperature environment, or the working environment which is corrosive and radioactive, and the belt conveyor can carry inflammable,explosive,high temperature and viscous material.

3. Enable the conveyor to meet the requirements of the automatic control.

 

4. Reduce the consumption of energy to the greatest extent, calculation standards will be based on 1 ton materials transfer the energy dissipations of 1 km, this is one of the most important development trend in the future.

5.Reduce pollution of belt conveyor during operation to reach the goal of protecting the ecological environment.

PK Machinery company is also on the way to this future trend, we offer belt conveyor, bucket elevators, screw conveyor, scraper conveyor and vibrating screen etc. With abundant engineering design experience, professional technical ability and strict fabricating specification, PK Machinery will be the future global leader of mining machinery industry!

Vehicle Type Tensioning Device of Belt Conveyor

Vehicle type tensioning device of the belt conveyor is that the tail wheel is mounted on a moving vehicle. The reversing pulley is connected by wire rope, and it is respectively connected to mobile vehicles and heavy hammer, by the effect of gravity, the hammer will cause automatic tension of conveyor belt. Practice has proved that it is appropriate to take great value of the effective stroke. Vehicle type tensioning device has a wide range of applications, which is not affected by the length of the belt conveyor. The conveyor belt tension can be adjusted automatically, which has simple operation and reliable structure, so the design of tensioning device should give priority to the use of the vehicle type.

How to Solve the Problem of Conveyor Belt Skid?

The main cause of conveyor belt skid is that the friction between conveyor belt and pulley is not enough, details please see the following three aspects:

1.The running resistance is increased, such as conveyor overloads, conveyor belt is squeezed and stuck on the frame, roller damages, stuff twines, material buries etc. will cause lots of rollers can not rotate well.
Solution: conveyor overload is strictly prohibited, the conveying capacity must be designed within the theoretical range ; Replace the roller which can not rotate flexibly; Fully check the entire transportation process, eliminate the bad affecting factors.

 

2.The friction coefficient is reduced, for example, the contact area of driving drum and belt enters into water, sundry. Rubber coated surface of driving pulley damages.
Solution: replace the driving pulley and clean the stuff that on the non-working conveyor belt surface.

3.The conveyor belt tension is reduced, for example, if the conveyor belt overload works for a long time, the belt will be deformed and stretched, besides, the tension of take-up device is not enough which will leads the tensile force decreases.
Solution: increase the tensioning stroke according to the working conditions, you can also cut off a piece ofconveyor belt to solve the problem when the tension is not enough.

How to Judge the Failure According to the Noise of Belt Conveyor?

1.When there is severe roller eccentricity 
There always occurs abnormal noise with periodic vibration when belt conveyor rollers runs, especially the return roller. The reason is that its length is bigger, weight is heavier and the noise is bigger .There are two main reasons of the noise:
1. the seamless steel tube wall thickness is not even which generates large centrifugal force;
2. the center of two bearing ends hole center and the outer circle center has big deviation which leads to large centrifugal force.

 

2.When the two axis of coupling are not concentric
The coupling of high speed motor of driving device and reducer or coupling with brake wheel occurs the abnormal noise, along with the vibration same with motor rotation frequency. Please adjust the motor and gearbox position timely in order to avoid fracture of gearbox input shaft.

3.Bend pulley and abnormal noise of the driving drum
During operation, the noise of turnabout pulley and driving pulley is small, the bearing usually damages when there is noise, please replace the bearing timely.

 

  

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Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, and Vibrating screen, Bucket elevator, Screw conveyor, Scraper conveyor using the world's most advanced technology, we are willing to serve every company to meet your custom needs. our goal is "be the future global leader of mining machinery industry". have any questions, please contact us without any hesitation.