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How to improve the service life of conveyor belt

    [electromechanical online news in recent years with the European and American countries needed to the coal plummeted, in China with plenty of rain in the south this year, major hydropower stations are full load operation. At the same time energy saving and emission reduction become enterprises and the country's top priority, integrated several has become the reason for the decline in coal prices this year all the way. Coal price drop also greatly affected the upstream production enterprises enthusiasm, improve enterprise resource recycling is particularly important. Far less to bring the delivery of the trust for each coal enterprise is a large expenditure, it is here, I would like to simply say that to improve the delivery of some of the problems, some of the problems on the improvement of the conveyor belt.

    By which way? The author summed up a few points, we might as well learn.

    1 improvement of conveyor belt drop hopper. Improving the feeding hopper, is one of the effective measures to prevent the early damage of the conveyor belt. Improvement of the belt conveyor transfer hopper, make it through foreign bodies increased 2.5 times, long, large foreign body in the conveying process supplied in the wall of the hopper and a conveying belt, reduce foreign body tear conveyor belt probability.

    The hopper material guide apron beyond the Rocky the and conveying the gap along the running direction of the conveying belt more and more, solve coal, stone card between the conveyor belt and apron, eliminate therefore caused by conveyor belt damage. The larger the hopper, the internal installation of the buffer baffle, to avoid the direct impact of the material conveying belt.

    2 adding scraper device to the roller. In the conveyor belt along the modified direction of the roller is equipped with scraper device, to eliminate the problem of material adhesion to the roller, to solve the problem caused by the transfer of the material.

    3 transfer of the head, tail and intermediate transfer of the transition. The transition length and the transition mode of the conveyor head, tail and intermediate transfer section have a great influence on the service life of the conveyor belt. Must carry out a reasonable transition design, should try to reduce the conveyor belt adhesive surface wear, to ensure that the conveyor belt is not folded, the middle of the phenomenon, the material does not leak.

    Pressure belt wheel of the 4 conveyor in the concave transition. Practice has proved that the steel cable conveyor belt transverse strength is insufficient, startup, a belt pressing wheel to cause the conveyor belt to excessive local stress, resulting in tear conveyor belt, the pressure belt wheel are changed for the belt pressing roller, can completely solve the problem.

    The 5 big machine boom conveyor belt weight load reduction. System of coal mine yard stacker arm rack conveyor belt was initially very short service life, heavy weight design is caused by the conveyor belt tension is too large, an important cause of premature cracking and aging. To meet the conveyor belt material conveying tension, reduce weight, the transportation of coal extended by the service life of the 1.5 million tons to 4.5 million tons. 20 million tons of mine system stack reclaimer arm rack conveyor with the original design of counterweight for 25T (including the weight of the counterweight drum), imported from the German anti tear steel ribbon work less than 300 million T serious tensile scrapped, after two load shedding 6T weight reduction, the use of domestic ordinary steel ribbon, amount of homework over 800 million T.

    6 material flow direction adjustment. The material flow direction has important influence on the service life of the conveyer belt, and the material flow and the conveyer belt can be used in the same direction, and the service life of the equipment can be greatly improved.

    7 conveyor belt local damage repair technology to extend the service life. (1) the local heat curing, which is often said that the conveyor belt heat flow need to be equipped with a curing machine. (2) local cold poured, the product has Germany di-pro liquid polymer composites repair, but need to room temperature curing 10h; (3) local cold bonding by German di-pro company repair strips (T2 longitudinal split, cold glue adhesive longitudinal fill crack blocking (need special glue gun). The advantages of these two methods are that the human resources are less, and have better wear resistance and reinforcing properties. The recovery time is short, the disadvantage is that the high demand of the environment can not be restored to the original conveyor belt surface roughness requirements; (4) conveyor belt spraying repair technology. The technology is a mixture of several liquid materials with special equipment, high pressure spray to the belt wear surface, according to the need to spray a certain thickness of wear-resistant layer. Curing time is short, is suitable for the local wear and tear, the effect is very good, the disadvantage is the need for special equipment.

    8 reasonable selection of belt type and maintenance. Reasonable choice of type, according to the seasonal changes in the timely adjustment of the correction device, plus the winter maintenance and other measures can also extend the life of the conveyor belt.

    9 other management issues. Strengthen the management of roller and cleaning device, damage to the timely replacement. Control belt start.

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