On the belt deviation problems

A conveyor belt deviation meaning
Conveyor during operation, the conveyor belt center line from the centerline of one side, a phenomenon known as the belt deviation.
Second, the conveyor belt deviation hazards
When the conveyor belt deviation, causing friction between the belt edge and frame, so that premature belt edge damage, deviation serious, conveyor idlers and will fall off,

causing a major accident would not only affect the production, transport damage band, when using non-flame retardant conveyor belt, but also because of increased deviation

conveyor running resistance, so that belt slippage could cause mine fire accident. For example: When the conveyor belt deviation, ripstop protection device failure; serious

deviation, conveyor belt is stuck and slipping; rack if the deviation is jammed, broken belt accident prone.
Third, the reasons for deviation conveyor
Deviation of conveyor belts mainly due to discontinuity caused. Specifically the following situations:
(A) the tail drive pulley or drum two diameter sizes;
(2) rollers or roller surface slime or other attachments;
(3) the nose and tail drive pulley drum is not parallel;
(4) drive pulley, tail pulley shaft centerline is not perpendicular to the fuselage centerline;
(5) roller is improperly installed;
(6) Feeding malposition;
(7) roll center is not the center line of the fuselage;
(8) incorrect or conveyor belt joints on both sides of aging deterioration caused by deflection;
(9) Body errors (frame tube, H frame spiky);
(10) belt is too loose.
Fourth, the conveyor belt deviation prevention
1, install anti-deviation protection devices
To prevent tearing conveyor belt, currently mostly used conveyor-type anti-deviation limit switch protection device. It consists of anti-bias sensor and control box. When the

conveyor belt deviation, the conveyor belt toward the outside of the vertical roll, so that the sensor contact with the movable contact and the fixed contact. Through the

control box off conveyor downtime. General use stalk roll-limit switch on the conveyor belt deviation monitoring.
2, improve the quality of the installation
3, to improve the quality of conveyor belt joint
4, to strengthen inspection and maintenance tour
5, to ensure unbiased loading
6, to ensure the normal cleaning device
Caking coal cleaning the drum, you must first shut down, clean up later. Non-operational side edge cleanup. Prohibit scraping shovels and other tools on the conveyor belt or

tool slime positive deviation of dial belt to avoid injury.