CN112374080A - Long-distance longitudinal tearing repair method for steel wire rope core rubber belt - Google Patents

Abstract

The invention discloses a long-distance longitudinal tearing repair method for a steel wire rope core adhesive tape, which is divided into the following two schemes according to the repair effect and the repair time of a belt: (1) adopting single-sided permanent repair: the method comprises the following steps of (1) utilizing a polyurethane manufacturing material as a repairing strip, firstly, forming a V-shaped groove with the width of two centimeters on a torn part of a torn belt, then utilizing hot repairing filler to flow into the V-shaped groove after being heated by a glue gun, and filling gaps; when the non-coal-conveying surface is conveyed to the lower belt position, the repairing strips are used for bonding, after bonding is finished, the purpose of permanent bonding of the belt is achieved, the requirement is equal to or lower than the surface of the belt, and then the belt conveyor normally runs, so that the time consumption is long, and the effect is good; (2) the two sides of the belt are pasted by the aid of the repairing strips, polyurethane manufacturing materials are used as the repairing strips, the non-coal-conveying surface of the torn belt is conveyed to the position of the belt under a return stroke to be bonded by the repairing strips, then the coal-conveying surface of the damaged belt is conveyed to the top plate surface and then the upper repairing strips are pasted, time consumption is short, and production benefit is good.

Description

Long-distance longitudinal tearing repair method for steel wire rope core rubber belt

Technical Field

The invention relates to the field of belt repair, in particular to a long-distance longitudinal tear repair method for a steel wire rope core rubber belt.

Background

In the coal mine production process, the belt is very easily damaged by foreign matters, such as abrasion after the carrier roller is clamped, impact of large materials, scratch caused by mixed metal foreign matters, and deviation and tearing of the belt caused by a scrap iron device on the iron remover. After the belt is longitudinally torn for a long distance, how to quickly recover the coal conveying system of the mine, the expenditure in the rescue accident caused by the belt is reduced, and the labor intensity of workers is greatly reduced, which is very important for the coal conveying system of the mine. The traditional long-distance longitudinal tearing repair technology for the steel wire rope rubber belt mainly comprises two technologies: (1) all damaged belts were replaced: if the long-distance tearing damage of the belt needs to be thoroughly solved, the best method is to replace the belt, for example, the belt is partially torn (within 2 meters), and a vulcanization repair method is adopted, and the defects are as follows: the replacement of the steel wire rope core belt requires vulcanization of a belt joint, the vulcanization time is long, 6-8 hours are required for about 2M of the vulcanization joint (preparation time for belt conveying, belt vulcanizer installation and the like is not included), the mine production is seriously influenced, and the labor intensity of workers is high; (2) a belt card punching technology: belt metal is detained and is beaten card and is adopted the zero time nature metal clip interval of an emergency to block torn belt, can sew up the belt in the short time, resumes production, its major defect as follows: the belt punching machine has the advantages that ore leakage occurs at gaps at the punching positions of the belt, ore particles and ore pulp pollute the working site and cause abrasion to the system, the metal cards can abrade the rubber surface and the carrier roller surface of the roller when passing through the surface of the roller and the carrier roller, the metal cards are punched to secondarily damage the belt, the service life is short, the repeated workload of personnel is large, and the abnormal abrasion of the blades of the sweeper is aggravated by the metal cards, so that the cleaning effect of the system is influenced. There is therefore a need for a belt repair that achieves as long a belt life as possible without damaging the rubber surface of the drum and the idler surface, while providing a cost effective solution.

Disclosure of Invention

The invention provides a long-distance longitudinal tearing repair method for a steel wire rope core rubber belt, which aims to solve the problem that other equipment cannot be damaged during the belt breakage repair in the coal mine conveying process.

The invention is realized by the following technical scheme: a long-distance longitudinal tearing repair method for a steel wire rope core adhesive tape comprises the following two schemes according to the length of time required for repairing and the repair effect of a belt, wherein the damaged part of the belt is a coal conveying surface:

(1) adopting single-sided permanent repair: the method comprises the following steps of (1) utilizing a polyurethane manufacturing material as a repairing strip, firstly, forming a V-shaped groove with the width of two centimeters on a torn part of a torn belt, then utilizing hot repairing filler to flow into the V-shaped groove after being heated by a glue gun, and filling gaps; when the non-coal-conveying surface is conveyed to the lower belt position, the repairing strips are used for bonding, after bonding is finished, the purpose of permanent bonding of the belt is achieved, the requirement is equal to or lower than the surface of the belt, and then the belt conveyor normally operates;

(2) adopting the belt two sides to adopt the repairing strip to paste: the method is characterized in that polyurethane manufacturing materials are used as repairing strips, the non-coal-conveying surface of a torn belt is conveyed to the position of the belt under a return stroke and is bonded by the repairing strips, then the damaged coal-conveying surface of the belt is conveyed to the top plate surface, and then the upper repairing strips are bonded.

The method for repairing the belt has two methods, and the method (1) has the advantages that: the belt repairing effect is good, the tensile strength is high, and the service time is long; the repairing position of the coal conveying surface of the belt is equal to or lower than the surface of the belt, so that the work of the belt cleaner at the head part of the original machine is not influenced; but the time for repairing and filling the belt coal conveying surface is long, the process is complex, and each group of people fills about 10 meters per hour; the method (2) has the advantages that: the belt repairing speed is high, each group of personnel can repair about 80 meters per hour, the production is delayed, and the defects are that the repairing strips fall off after passing through a sweeper and need to be adhered in time. Although both methods have advantages and disadvantages, the repairing method is formulated according to actual conditions, if long-term repair is needed, production is slightly delayed, and if production is not delayed, the method 2 can be adopted. Both methods have the advantage that the belt does not need to be replaced, the time delay is longer if the belt is to be replaced, and the cost is increased a lot.

Compared with the prior art, the invention has the following beneficial effects: the long-distance longitudinal tearing repair method for the steel wire rope core adhesive tape provided by the invention is applied to actual production, for example: the longitudinal tear of the 130-meter long-distance steel wire rope adhesive tape is permanently repaired, the production of a mine is recovered for about 6 hours, the grooving and the glue injection of a later belt coal conveying surface are carried out for 3 hours every day, and the repair is completed in 4 days. The belt normally runs for about 1 and a half years now, and can still meet the requirement of normal coal transportation. The full-mining production halt caused by the tape accidents of the mine is avoided, and a great amount of economic and social benefits are generated; if the traditional method is adopted, the belt needs to be completely replaced, the total material cost of the belt is 195000 yuan, the material cost of 2 vulcanized joints is 10000 yuan, the labor cost is 50000 yuan, the total required cost is 255000 yuan, the belt is repaired by the new process, the material cost is 200000 ten thousand yuan, the labor cost is 20000 yuan, the total required cost is 22 ten thousand yuan, and the cost can be saved by 35000 yuan. When the traditional belt replacement is used, the trial production is finished from the belt conveying to the vulcanizing belt, at least 36 hours are needed, multiple kinds of coordination work are needed, the operation range is wide, more workers are needed, the labor intensity of workers is high, the safety pressure is high, and the influence on the production time of a mine is long. The novel process is adopted to repair the longitudinal tear of the 130-meter belt, the mine can be used for production recovery only in 6 hours, the required personnel are few, 8 people can finish the repair operation, the later grooving and glue injection work can be finished in an overhaul class, the labor intensity of workers is low, the safety pressure is low, the production recovery time of the mine is short, and the social benefit is obvious.

Drawings

FIG. 1 is a schematic diagram of the repair of the method (1) of the present invention.

FIG. 2 is a schematic diagram of the repairing process (2) of the present invention.

The figures are labeled as follows: 1-belt cross section, 2-V type groove, 3-repairing strip.

Detailed Description

The present invention is further illustrated by the following specific examples.

A long-distance longitudinal tearing repair method for a steel wire rope core adhesive tape comprises the following two schemes according to the length of time required for repairing and the repair effect of a belt, wherein the damaged part of the belt is a coal conveying surface:

(1) as shown in fig. 1, if the repair effect is good, the single-sided permanent repair is adopted, which takes a long time: the method comprises the following steps of (1) utilizing a polyurethane manufacturing material as a repairing strip, firstly, forming a V-shaped groove with the width of two centimeters on a torn part of a torn belt, then utilizing hot repairing filler to flow into the V-shaped groove after being heated by a glue gun, and filling gaps; when the non-coal-conveying surface is conveyed to the lower belt position, the repairing strips are used for bonding, after bonding is finished, the purpose of permanent bonding of the belt is achieved, the requirement is equal to or lower than the surface of the belt, and then the belt conveyor normally operates;

(2) as shown in fig. 2, if it is not desired to delay the long production time, the repair is performed using a two-sided repair strip scheme: the method is characterized in that both sides of a belt are pasted by adopting the repairing strips, polyurethane manufacturing materials are used as the repairing strips, the non-coal-conveying surface of the torn belt is firstly conveyed to the position of the belt under a return stroke and is pasted by the repairing strips, and then the damaged belt coal-conveying surface is conveyed to the top plate surface and is pasted with the upper repairing strips.

The scope of the invention is not limited to the above embodiments, and various modifications and changes may be made by those skilled in the art, and any modifications, improvements and equivalents within the spirit and principle of the invention should be included in the scope of the invention.

Claims (1)

1. A long-distance longitudinal tearing repair method for a steel wire rope core rubber belt is characterized by comprising the following steps: according to the length of time required for repairing the effect and the damaged part of the belt, the damaged part of the belt is a coal conveying surface, and the repairing is divided into the following two schemes:

(1) adopting single-sided permanent repair: the method comprises the following steps of (1) utilizing a polyurethane manufacturing material as a repairing strip, firstly, forming a V-shaped groove with the width of two centimeters on a torn part of a torn belt, then utilizing hot repairing filler to flow into the V-shaped groove after being heated by a glue gun, and filling gaps; when the non-coal-conveying surface is conveyed to the lower belt position, the repairing strips are used for bonding, after bonding is finished, the purpose of permanent bonding of the belt is achieved, the requirement is equal to or lower than the surface of the belt, and then the belt conveyor normally operates;

(2) adopting the belt two sides to adopt the repairing strip to paste: the method is characterized in that polyurethane manufacturing materials are used as repairing strips, the non-coal-conveying surface of a torn belt is conveyed to the position of the belt under a return stroke and is bonded by the repairing strips, then the damaged coal-conveying surface of the belt is conveyed to the top plate surface, and then the upper repairing strips are bonded.

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