Scraper Conveyor Failure Causes
Scraper conveyor as a common material conveying equipment, its failure causes mainly include:
Scraper chain failure:
Chain breakage: the chain is too tight or too loose, severe wear, the chain is stuck in operation, heavy load starting, etc.
Chain jumping: the presence of coal lumps or other debris between the chain and the sprocket, resulting in a sudden increase in the running radius of the chain.
Dropping chain: incorrect installation of the headstock, wear of the sprocket exceeding the limit, inconsistency of the tension and looseness of the two chains, etc.
Reducer failure:
Overheating, oil leakage and abnormal ringing: gear wear, bearing damage, insufficient or excessive oil, unclean oil, etc.
Motor failure:
Failure to start: too large a load, faulty electrical wiring, etc.
Abnormal sound: single-phase operation, bearing damage, etc.
Conveyor running away:
Conveyor belt or scraper installation is not straight, incorrect installation of rollers, etc.
Chain scraper conveyor failure causes
Chain scraper conveyor is similar to scraper conveyor, and its failure causes are also mainly concentrated in the chain and mechanical parts, specifically including:
Chain failure: the same as scraper conveyor, including chain breakage, chain jumping, chain dropping and so on.
Sprocket wear: the sprocket rubs against the chain for a long time, resulting in serious wear.
Reducer failure: the same as the scraper conveyor, including overheating, oil leakage, abnormal ringing and so on.
Coal mine scraper conveyor failure causes
Due to its special working environment, the causes of failure of scraper conveyor for coal mine also include:
Erosion of coal dust and moisture: coal dust and moisture in the coal mine environment will accelerate the wear and corrosion of the equipment.
The influence of corrosive gases: certain gases in the coal mine may have a corrosive effect on the equipment materials.
Unevenness of the working surface: unevenness of the working surface will lead to uneven force on the scraper chain and increase the risk of chain breakage.
Causes of Coal Conveyor Failure
Coal conveyor is a broader concept that includes many types of conveyors, but common causes of failure are similar to those mentioned above and mainly include:
Failure of conveyor belt or scraper chain: e.g. broken belt, broken chain, runaway, etc.
Failure of drive system: such as motor failure, reducer failure, etc.
Wear and tear of mechanical parts: e.g. wear and tear of parts such as rollers and drums.
Failure of conveyor belt scraper
Conveyor belt scraper usually refers to the scraper device installed on the conveyor belt, and its failure causes include:
Scraper wear: the scraper and the material for a long time friction leads to wear.
Scraper falling off: the scraper is not fixed firmly or impacted by external forces, resulting in falling off.
Conveyor belt deflection: conveyor belt deflection will affect the normal work of the scraper.
Failure reasons of scraper chain conveyor
Scraper chain conveyor combines the advantages of scraper and chain, and its failure causes mainly include:
Chain failure: the same as the above scraper conveyor, including chain breakage, chain jumping, chain dropping and so on.
Scraper failure: scraper wear, fall off, etc.
Sprocket and reducer failure: sprocket wear, reducer overheating, oil leakage and so on.
In summary, the causes of failure of various types of scraper conveyor, chain scraper conveyor, coal mine scraper conveyor, coal conveyor, conveyor belt scraper, scraper chain conveyor are mainly concentrated in the chain, scraper, reducer, motor and other key components, and at the same time affected by the working environment and conditions of use. In order to reduce the occurrence of failures, it is necessary to strengthen the daily maintenance, regular inspection and maintenance work of the equipment.
