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刮板运输机和皮带运输机在矿井中得到广泛应用,对煤炭生产起着重大的作用。近年来,在一些矿井相继出现的刮板、皮带运输机产生的火灾事故。主要原因是电器设备失爆、电缆不符合规程规定、摩擦生热等。本文着重介绍运输机摩擦生热引起的火灾事故。 众所周知,物体相互摩擦可以生热,如果散热条件不好,温度就会逐步上升。如果温度达到周围可燃物的燃点时,就着了火。从刮板、皮带运输机的摩擦生热引起的火灾事故看,大致可以分为三种类型。
Scraper conveyors and belt conveyors are widely used in mines and play a significant role in coal production. In recent years, some mines have emerged in the scraper, belt conveyor fire accidents. The main reason is the explosion of electrical equipment, cables do not meet the rules and regulations, such as friction heat. This article highlights the fire accidents caused by the frictional heat generated by the transport aircraft. As we all know, friction objects can be heated, if the cooling conditions are not good, the temperature will gradually rise. If the temperature reached the ignition point of the surrounding combustible material, it caught fire. From the scraper, belt conveyor friction heat caused by fire accidents can be broadly divided into three types.