What are the hazards of high-temperature conveyor belts?

High-temperature conveyor belts often suffer from various surface damages during operation, which can have numerous adverse effects on their safe operation. What are the main hazards involved?

 Conveyor belt becomes thinner

Thick heat-resistant conveyor belts become difficult to splice after thinning, and surface damage on the belts causes them to become thinner. This results in uneven thickness at the ends when splicing, leading to strong friction between the splice and the roller during operation, which wears down the roller and shortens the splice's lifespan, especially when new and old belts are spliced together. For heat-resistant conveyor belts connected using the vulcanization method, the splicing process is even more challenging due to the inconsistent thickness.

 (2) Conveyor Belt Strength Decreased

High-temperature conveyor belts suffer damage to a certain extent, particularly when the covering layer is breached and the damage reaches the core. This directly affects the tensile strength of the high-temperature conveyor belts, reducing their strength. When the steel rope core of a high-temperature conveyor belt is damaged to the core, it may lead to rusting due to water intrusion, causing the core to lose its intended strength. High-temperature conveyor belts with weakened strength are prone to breakage accidents during operation, especially when subjected to sudden increases in load, such as when starting with a load or when the belt is jammed.

 (B3) Conveyor Belt Lifespan Shortened

Damage to high-temperature conveyor belts first wears down the covering layer, sometimes even exposing the core, leading to premature failure of the belts, reducing their lifespan and increasing transportation costs in mines. For high-temperature conveyor belts with uneven wear on both sides of the centerline, changes in local tensile strength also further reduce the lifespan of the belts.

 (B4) Belt Deviation

When the degree of damage on either side of the high-temperature conveyor belt along the centerline varies, the tension rates on both sides often change, which directly leads to the conveyor belt running off-center during operation. To correct this, it exacerbates the wear.