Steel Cord Edge Damage
We have designed and had installed over 500 km of steel cord belt. We have never damaged or seen damage to the belt edges when the chutes and conveyor alignment have been correctly applied.
Your description of the "belt sway" sound interesting but not very descriptive. Cound you elaborate of show a photo? Is sway another term for sag? ■
Belt Edge Damage.
Originally Posted by nordell
Your description of the "belt sway" sound interesting but not very descriptive. Cound you elaborate of show a photo? Is sway another term for sag?
Dear Friends,
Belt sway and Sag are completely different.
Sag is the sagging of belt between idlers,normally when loaded.
Sway is the term used to indicate side movement of belt, while running,ie off centre movemen, which causes damage to edges.
Belt edge damage happens when belt sway in the return side.
This happens due to many reasons.
Due to the cut end construction of fabric belt the belt does not damage easily.
But in case of steel cord belt, the edge is moulded rubber,which get damaged when the belt sway and rub against side structurels.
Probable reason for Belt sway,
1.Improper belt training.
2.Faulty belt joint.
3.Accumulation of material on the pulleys during heavyrains and poor scrapping/belt cleaning system.
4.Due to inadequate counterweight,both sag and sway can take place.
This is a common phenomenon during rainy season if proper care is not taken.
Rgds,
Narayanan Nalinakshan. ■
Belt Sway Vs Belt Misalignment
I am glad we cleared up the new term "belt sway". Maybe an India only term like from a breeze. The term sway seems synonymous with side travel or belt misalignment which have some manifestations, some as you suggest, resulting from:
1. chute discharge that is not symmetric to belt axis - by ore side thrust onto belt and by non-uniform x-sectional loading
2. conveyor idler misalignment; poor idler cover selection
3. pulley misalignment
4. internal belt construction errors from poor splices or poor factory asymmetric pre-tensioning
5. earth settlement of idler supports
6. take-up system tensioning substandard - fixed take-up with poor settings; poor belt sag control ■
Belt Edge Damages - More Input?
Dear Mr. Rohit Kumar Swain,
i would like to join Mr. Nordell in the request of some pictures of the damaged belt, along with information about belt, about your troughing-in+oout lengths, and the radii the belts have to pass running up onto the stackers.
Did you change the belt lately (higher strength / other supplier) or did you increase the throughput / length of the conveyors?
Hope you can answer the above requests.
Regards
R. ■
Severe Edge Damage of Steel Cord Belts
Severe edge damage of Steel cord conveyor belts.
Dear All,
Good Day !
We are using both Steel cord conveyor belts and EP conveyor belts in our material handling system. In our stacker reclaimers and Yard conveyors, we observe severe damage of belt edges in steel cord conveyors. This is not observed in EP conveyors. The steel cord belts are not having breaker plies and this may be a reason. Another reason may be belt sway. At the starting of conveyors, there was belt sway but now it is mostly reduced by modifications. But still there is some belt sway which normally happens in material handling plant. Our concern is coal and lime stone now.
Badly these damages expose steel cord to come out and decrease the belt width.
Is there any means to reduce or eliminate these damages ?
Would request to reply for the solution of above if possible pls.
Rohit Kumar Swain ■