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CONVEYING THE FIRE

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摘要

Conveyors are an extremely efficient method of transporting material.Unfortunately,once alight,they are equally efficient at conveying fire rapidly from one location to another.The standards,classifications,and terminology of fire-resistant conveyor belts can be very confusing.The vast majority of conveyor belts used in ports and terminals are rubber multi-ply construction.’Fire retardant,'‘self extinguishing',and’fire resistant’are all phrases used for basically the same group of belting,although’resistant’mistakenly implies that the belts would not be destroyed by fire.The first thing to bear in mind is that rubber conveyor belts can never be totally fireproof.Rubber is flammable and the fabrics used in the carcass of multi-ply belts are mostly polyester and nylon,which have virtually no resistance to fire.Consequently,all belts will be damaged/destroyed by fire but the essence of fire-resistant belting is that it will not continue to burn without an external fire source,therefore not contributing to the spreading of a fire.The most commonly used term is’fire resistant’but in truth,a better and more accurate description would be’self-extinguishing'.This is because the ability of a rubber conveyor belt to’resist’fire is actually achieved by adding special chemicals and additives to the rubber compound during the mixing process.Once the rubber has been vulcanised and is ignited it emits gases that effectively suffocate(extinguish)the fire by starving the flames of oxygen.

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  • 来源
    《Dry Bulk》 |2023年第3期|33-37|共5页
  • 作者

    Leslie David;

  • 作者单位

    Dunlop;

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  • 原文格式 PDF
  • 正文语种 英语
  • 中图分类 水路运输;
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