Repairing method of local damage of steel-core rubber belt

Abstract

The invention relates to a repairing method of a local damage of a steel-core rubber belt. The method is characterized by being realized through the six steps of cutting off the damaged rubber belt, polishing, spreading rubber cement, preparing a rubber repairing block, repairing the rubber belt, and sulfidizing. Compared with the prior art, the invention has the advantages that a steel-core rubber belt with 10-35 percent of broken and lost steel wire ropes and a damage with a longitudinal tearing length of 1.6-20m of a steel-core rubber belt can be repaired by using the method, and the repaired steel-core rubber belt can reach the mechanical properties of the original steel-core rubber belt and prevent secondary degumming and core breaking phenomena; the repairing time is short, and the repairing work can be finished within 7-12 hours generally; the labor intensity of maintenance workers is low, and the operation rate of equipment is high; and the influences on production are obviously reduced, and the cost is reduced.

Description

Technical field: [0001] The invention relates to a method for repairing local damage of a steel core tape. Background technique [0002] In large and medium-sized enterprises, especially mining enterprises, steel core rubber belts are generally used to transport ore and other raw materials. During the operation, the steel core belt will be punctured or even penetrated by large ore with sharp corners, iron rods, etc., and the belt will be torn longitudinally. In order to save costs, the vulcanization method is used to repair it, but the current vulcanization technology of steel core tape can only vulcanize and repair the longitudinal tear of steel core tape within 10% of the broken strands. Fill in the core rubber for vulcanization, vulcanize to 140±5°C and keep the temperature constant for 45 minutes, cool down to 75±5°C and remove the board. Since there is no steel wire at the steel wire rope of the belt, after a period of operation, the rubber at the vulcanization place i...

AI Technical Summary

Problems solved by technology

In order to save costs, the vulcanization method is used to repair it, but the current vulcanization technology of steel core tape can only vulcanize and repair the longitudinal tear of steel core tape within 10% of the broken strands. Fill in the core rubber for vulcanization, vulcanize to 140±5°C and keep the temperature constant for 45 minutes, cool down to 75±5°C and remove the board. Since there is no steel wire at the steel wire rope of the belt, after a period of operation, the rubber at the vulcanization place is smashed by ore, etc. , or when the temperature is high when the board is removed, the surface of the tape will be blistered or poorly fused, and it needs to be vulcanized again for repair

When this method vulcanizes and repairs tapes with broken strands or missing strands of 10%-35%, the damaged joints of the tape cannot be fused, and can only be used after shrinking the head again, but the shrinking needs more than 40 hours. If the steel core tape Longitudinal tearing of 1.6-20m damage requires replacement of the tape at the tear, and the time required to replace the belt is 60 hours. The cost is high, the labor intensity of the maintenance workers is high, and the production time is long (the belt shrinkage requires the entire production system to stop. available)