The coal conveying system of thermal power plants is a core auxiliary link for power generation, yet it also ranks as a high-risk fire zone within plant premises. During coal transportation and stockpiling, massive fine coal dust is generated and accumulates over time on equipment inner walls, belt galleries and coal bunker corners. When exposed to high temperatures from mechanical friction or residual heat of electrical components, the accumulated dust may trigger spontaneous combustion, open fires and even dust deflagration, posing severe threats to safe power production.

Conventional lining plates suffer from poor wear resistance and inferior flame retardancy. They tend to age and crack after long-term service, failing to eliminate fire risks at the source. Against this backdrop, flame-retardant ultra-high molecular weight polyethylene (UPE) liners stand out as an advanced new material to address fire hazards in coal conveying facilities.

In recent years, flame-retardant UPE liners have been widely adopted in power coal handling applications as a practical new material to upgrade plant fire safety. As modified UPE sheets, they overcome the drawbacks of ordinary plastic panels such as flammability and rapid aging. Featuring outstanding self-extinguishing performance, low smoke emission and no molten dripping, the liners stop burning immediately once the flame source is removed and effectively block fire spread.

Additionally, flame-retardant UPE liners deliver ultra-smooth surface and exceptional wear resistance, drastically cutting coal dust adhesion and buildup during coal conveyance to fundamentally reduce the risk of coal dust spontaneous ignition. The material boasts outstanding structural stability with resistance to extreme temperatures and aging. It fits harsh high-dust, high-wear working conditions including coal galleries, raw coal bunkers and coal chutes, resisting deformation and damage during long-term operation and minimizing frequent maintenance and replacement cycles.

This article is compiled by Henan Jinhang Engineering Plastics Co., Ltd. (Official Website: www.upeplastic.cn), Editor-in-Chief: Jinhang. Our company specializes in the R&D and manufacturing of flame-retardant UPE liners. Reproduction is permitted with clear source attribution.