Belt Conveyor Troubleshooting

When operating a belt conveyor onsite, there are some problems which may occur. How we going to solve the problems? These problems affect the productivity. Let Henan Pingyuan share some troubleshooting tips with you.

Problems	Solutions
Belt bowed	Avoid telescoping belt rolls or storing them in damp locations. A new belt should straighten out when “broken in” or it must be replaced.
Belt improperly spliced or wrong fasteners	Use correct fasteners. Retighten after running for a short while. If improperly spliced, remove belt splice and make new splice. Set up regular inspection schedule.
Belt speed too fast	Reduce belt speed
Belt strained on one side	Allow time for new belt to “break in”. If belt does not break in properly or is not new, remove strained section and splice in a new piece.
Breaker strip missing or inadequate	When service is lost, install belt with proper breaker strip
Counterweight too heavy	Recalculate weight and adjust counterweight accordingly. (If using screw takeups, reduce takeup tension to point of slip, then tighten slightly)
Counterweight too light	Recalculate weight required and adjust counterweight accordingly. (If using screw takeups, increase tension)
Damage by abrasives, acid, chemicals, heat, mildew, oil	Use belt designed for specific condition. For abrasive materials working into cuts and between piles, make spot repairs with cold patch or with permanent repair patch. Seal metal fasteners or replace with vulcanized step splice. Enclose conveyor for protection against rain, snow and sun. Don’t over-lubricate idlers.
Differential speed wrong on dual pulleys	Make necessary adjustment.
Drive underbelted	Recalculate maximum belt tensions and select correct belt. If conveyor is over-extended, consider using two-flight system with transfer point. If carcass is not rigid enough for load, install belt with proper flexibility when service is lost.
Edge worn or broken	Repair belt edge. Remove badly worn or out of square section and splice in a new piece.
Excessive impact of material on belt or fasteners	Use correctly designed chutes and baffles. Make vulcanized splices. Install impact idlers. Where possible, load fines first. Where material is trapped under skits, adjust skirtboards to minimum clearance.
Idler rolls not turning	Correct or replace stalled rolls. Lubricate. Improve maintenance. (Don’t over lubricate)
Idlers or pulleys out of square with center line of conveyor	Realign. Install limit switches for greater safety.
Idlers improperly placed	Relocate idlers or insert additional idlers spaced to support belt.
Improper loading, spillage	Feed should be in direction of belt travel and at belt speed, centered on the belt. Control flow with feeders, chutes and skirtboards.
Improper storage or handling	Refer to your belt supplier for storage and handling tips.
Insufficient traction between belt and pulley	Increase wrap with snub pulleys. Lag drive pulley. In wet conditions, use grooved lagging. Install and correct cleaning devices on belt. Install centrifugal switch for safety.
Material between belt and pulley	Use skirtboards properly. Remove accumulation. Improve maintenance.
Material build-up	Remove accumulation. Install cleaning devices, scrapers and inverted “V” decking. Improve housekeeping.
Pulley lagging worn	Replace worn pulley lagging. Use grooved lagging for wet conditions
Pulleys too small	Use larger diameter pulleys.
Radius of convex vertical curve too small	Increase radius by vertical alignment of idlers to prevent excessive edge tension.
Relative loading velocity too high or too low	Adjust chutes or correct belt speed. Consider use impact idlers.
Side loading	Load in direction of belt travel, in center of conveyor.
Skirts improperly placed	Installed skirtboards so that they do not rub against belt.

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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.