For years working in coal washing plant equipment maintenance, the biggest recurring headache lies in the wear damage of coal bunker liners. As equipment supervisors at coal washing plants can attest, regular steel plates wear through quickly, while ultra-high wear-resistant lining boards deliver exceptional durability — a consensus shared by countless frontline maintenance staff after years of on-site operation. Ordinary steel liners have long been the standard option for most processing plants. Yet under constant scouring by raw coal and gangue, coupled with heavy impact from high-drop feeding, steel sheets thin rapidly. Within just a few months, they suffer perforation, deformation and rust. Every liner replacement forces production shutdowns for maintenance, consuming massive labor and material resources, disrupting coal washing schedules, and driving up long-term maintenance costs significantly.

To tackle this pain point, numerous coal washing plants have phased out conventional steel plates and switched to ultra-high molecular weight polyethylene (UHMWPE) wear-resistant lining boards. Its standout strength lies in superior wear resistance, far outperforming regular steel. It withstands sustained heavy friction and impact from bulk materials with minimal wear over extended service life, eliminating frequent repairs and replacements.

Boasting inherent self-lubricating properties, the smooth inner surface prevents coal adhesion and buildup, resolving blockages caused by wet coal and cutting down manual bunker cleaning work.

Furthermore, these lining boards feature strong impact resistance and anti-corrosion performance, perfectly suited for the harsh heavy-duty operating conditions of coal washing plants. They resist brittleness and deformation even in low-temperature environments. From a long-term maintenance perspective, the stable, long-lasting lining boards drastically cut equipment overhaul frequency and production downtime losses. They effectively resolve core coal bunker maintenance pain points, making them the top material choice for coal bunker retrofits at coal washing facilities.

This article is compiled and edited by Henan Jinhang Engineering Plastics Co., Ltd. (www.upeplastic.cn), Editor-in-Charge: Jinhang. Our company specializes in the R&D and production of UHMWPE sheets. Reproduction is permitted with clear source attribution.