Scraper conveyor is an important coal mine transportation equipment, which is widely used in coal mining process for continuous transportation of bulk materials such as coal, ore, etc. Chain Scraper Conveyor,Coal Mining Scraper Conveyor ,Coal Conveyor ,Conveyor Belt Scraper,Scraper Chain Conveyor all belong to different types of Scraper Conveyor or application scenarios under the title.
The following is an introduction to the common failures of these devices:
First, the common failure of scraper conveyor
Scraper chain failure
Broken chain:
Reason: the chain quality is not up to standard, the chain is too loose or too tight, the chain is badly worn, the chain is mixed with large pieces of material or iron parts leading to jamming, improper installation and so on.
Treatment: Replace the chain links in time, adjust the chain looseness or tightness, prevent the chain from overloading, and ensure the installation quality.
Floating chain:
Reason: scraper conveyor is not straight, Conveyor Belt Scraper is missing or bent, chain tension is too large.
Treatment: pad the machine body, keep the scraper conveyor straight, replace the missing or bent scraper in time, adjust the chain tension.
Drop chain:
Reason: incorrect installation of head and tail, serious wear of sprocket, poor bite of chain and sprocket, etc.
Treatment: make sure the installation is correct, replace the worn sprocket in time, adjust the biting state of chain and sprocket.
Conveyor belt failure
Deflection:
Reason: conveyor belt tension is not suitable, joints are not flat, incorrect installation of rollers.
Treatment: Adjust the tension of the conveyor belt, replace the uneven joints and reinstall the rollers.
Slip:
Reason: conveyor belt tension is too large, there are foreign objects on the conveyor belt, damaged rollers and so on.
Treatment: Adjust the belt tension, clean up the foreign matter on the conveyor belt, replace the damaged rollers.
Tear, break, wear:
Reason: aging of the conveyor belt, foreign matter on the conveyor belt, damaged rollers, too much conveying capacity, etc.
Treatment: Replace the aging conveyor belt regularly, clean the foreign matter on the conveyor belt, replace the damaged rollers, and control the conveying volume.
Reducer failure
Reason: poor lubrication, gear wear, bearing damage, etc.
Treatment: Regularly lubricate the reducer, replace worn gears and bearings.
Motor failure
Causes: Motor overload, bad insulation, bearing damage, unstable starting voltage, etc.
Treatment: Ensure that the motor is not overloaded, regularly check the insulation condition, replace damaged bearings, and stabilize the starting voltage.
Other faults
Heat generation: It may be related to poor heat dissipation, overload operation, lack of oil or damage of bearings. It is necessary to clean up dust, eliminate overload factors, and replace damaged bearings.
Rattling: It may be caused by damaged bearings, poor gear meshing, etc.. Need to check and replace the damaged parts.
Second, the common failure of specific types of scraper conveyor
Chain scraper conveyor: because of the use of chain as traction parts, so its common failures are mainly concentrated in the chain, such as broken chain, floating chain, falling chain, and so on.
Coal mine scraper conveyor: in the harsh working environment of coal mine, besides the above common failures, it may also be affected by coal dust, moisture and other factors, resulting in accelerated wear and failure of the equipment.
Coal Conveyor ,Conveyor Belt Scraper,Scraper Chain Conveyor : these devices in the coal conveying process, common failures and scraper conveyor is similar, but may be due to the specific structure and application of different environments and differences.
Third, the summary
Scraper conveyor and its various types play a vital role in the coal conveying process, but its common failures should not be ignored. In order to ensure the normal operation and prolong the service life of the equipment, it is necessary to strengthen the routine maintenance and repair work, and find and deal with the hidden trouble in time. Meanwhile, for different types of scraper conveyor, corresponding maintenance plans and measures should be made according to its specific working environment and requirements.
