Repairing method of local damage of steel-core rubber belt

A technology of partial damage and tape, applied in the field of repairing partial damage of steel core tape, can solve the problems of high labor intensity of maintenance workers, foaming and fusion on the surface of tape, affecting production time, etc. reduced effect

Inactive Publication Date: 2010-08-18
TAIYUAN IRON & STEEL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: The repair of the steel core tape with a width of 1200mm and a thickness of 30mm when the upper cover rubber is damaged by 800mm×100mm, the specific steps are:

[0015] 1. Relax the tension of the damaged tape to be repaired;

[0016] 2. Cut a 1000mm×150mm parallelogram on the surface of the damaged part of the covering rubber, continue to cut to the depth of the core rubber layer, and the cutting depth reaches the steel wire rope. Pyramids with large and small lower incisions;

[0017] 3. Use a grinder to grind the cut surface into a rough surface. After cleaning, clean it with JH——2177 flame-retardant cleaning agent. After drying, apply glue (JH——2000 flame-retardant vulcanized glue) twice, and the paint is finished After the first time of natural drying for 10-15 minutes, the surface of the glue is not sticky as the standard, and the second time is carried out to make the glue coated with the second time fully dry, and the surface of the glue is not st...

Embodiment 2

[0024] Embodiment two: wide be 1200mm, thick be the repairing method of 30 broken strands of the steel core adhesive tape steel wire rope of 30mm (this adhesive tape has 90 steel wires), concrete steps are:

[0025] 1. Loosen the tension of the damaged part of the tape to be repaired;

[0026] 2. Cut the upper surface and the lower surface of the damaged covering rubber into a 1200×500 parallelogram, continue to cut to the depth of the core rubber layer, and the cutting depth reaches the steel wire rope. The cut surface is 135° from the upper surface of the undamaged covering rubber. The cutting notch on the upper layer is a pyramid-shaped notch with a larger upper notch and a smaller lower notch, and the lower layer is cut into a pyramid-shaped notch with a smaller upper notch and a larger lower notch;

[0027] 3. Cut off the damaged steel wire ropes at intervals of 1, and cut off 15 damaged steel wire ropes in total, leaving 15 damaged steel wire ropes, so that the glue can ...

Embodiment 3

[0039] Embodiment three: the repair method that the width is 1200mm, and the steel core adhesive tape of 30mm is longitudinally torn 4 meters, concrete steps are:

[0040] 1. Relax the tension of the damaged tape to be repaired;

[0041] 2. Cut off the damaged upper and lower covering rubber layer, core rubber layer and the core rubber of the damaged part between the steel wire rope. The cutting surface is at an angle of 120° with the undamaged tape surface. Small pyramid shape, the lower layer is cut into a pyramid-shaped notch with a smaller upper incision and a larger lower incision;

[0042] 2. Roughly grind the cut surface, clean up the space between the steel wire ropes in the damaged part, and tighten the two steel wire ropes at the edge of the damaged part of the tape with thin steel wires every 200mm;

[0043] 2. Clean the cut surface with JH——2177 flame-retardant cleaning agent and polish it into a rough surface, apply the paste glue twice, and let it dry naturally,...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): B29C73/10
Inventor 周金华赵淑琴周金荣
Owner TAIYUAN IRON & STEEL GROUP
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