Belt conveyor is one type of conveyors, Hongdali have belt conveyor with fixed feet and wheels. The belt conveyor is with simple structure and high efficiency. This continuous conveying machine adopts the flexible conveyor belt as the material bearing and traction parts. The faults and solutions of belt conveyors faults are as follows:
1. The belt conveyor motor cannot be started or decelerated immediately after starting.
Fault cause analysis: A wire fault; B voltage drop; C. contactor failure; D operates continuously in 1.5 seconds.
Treatment method: check the conveyor belt wiring, check the voltage, check the overload appliance, and reduce the times of operations.
2. The belt conveyor motor is hot.
Fault cause analysis: due to overload for the belt conveyors, the length of the conveyor belt is too large or stuck, the running resistance increases, and the belt conveyor motor is overloaded; Due to the poor lubrication condition of the transmission system for the belt conveyor,, the power of the transmission motor increases. The air inlet or diameter of the fan is dust in the radiator, which worsens the heat dissipation conditions.
Treatment method: measure the belt conveyors motor power, find out the cause of overload operation and treat the symptoms; Timely lubricate all transmission parts; remove dust.
3. When the belt conveyors fully loaded, the hydraulic coupling cannot transmit the rated torque.
Failure cause analysis: insufficient oil in hydraulic coupling.
Treatment method: when refueling (driving dual motors, it must be measured with an ammeter. By checking the refueling amount, the power tends to be the same.
4. The reducer for belt conveyor motor is overheated.
Fault cause analysis: the oil of belt conveyors reducer is too much or too little; Fuel consumption time is too long; The lubrication condition deteriorated and the bearing was damaged.
Treatment method: add oil according to the specified amount, clean the interior, change the engine oil in time, repair or replace the bearing, and improve the lubrication conditions for the belt conveyors.
5. The conveyor belt deviates from the track.
Failure cause analysis: the belt conveyors frame and drum are not adjusted directly, the drum shaft is not perpendicular to the center line of the conveyor belt, the conveyor belt joint is not perpendicular to the center line, and the side of the conveyor belt is S-shaped. The conveyor loading point is not in the center of the conveyor belt (partial loading).
Treatment method: adjust the conveyor frame or drum to keep straight, adjust the position of the drum, correct the deviation of the conveyor belt, remake the joint, ensure that the joint is perpendicular to the center of the conveyor belt, and adjust the position of the coal discharge point
6. The conveyor belt is aged and torn.
Failure cause analysis: the friction between the conveyor belt and the frame leads to rough and cracked edges of the conveyor belt; Interference between the conveyor belt and the fixed hardware will cause tearing; Improper storage and excessive tension; The laying time is too short, resulting in deflection time. Exceeding the limit value will lead to premature aging.
Treatment method: it is recommended to adjust the instrument network in time to avoid long-term deviation of the conveyor belt, prevent the conveyor belt from hanging on fixed parts or falling into the metal structure of the conveyor belt, store it according to the storage requirements of the conveyor belt, and avoid short-distance laying.
7. The tape/belt for conveyor is broken.
Failure cause analysis: the conveyor belt material is inappropriate, and conveyor belt will become hard and brittle when exposed to water or cold; After long-term use, the strength of the conveyor belt decreases; The quality of conveyor belt joint is poor, and local cracks are not repaired or reground in time.
Treatment method: the conveyor belt core is made of materials with stable mechanical and physical properties, the damaged or aging conveyor belt is replaced in time, the joints are often observed and the problems are handled in time.
Post time: Mar-09-2022