Wear-Resistant Polyurethane Solutions for Material Conveying Lines

Wear-Resistant Polyurethane Solutions for Material Conveying Lines

Upgrade Plan for Iron Ore Particle Vibrating Screens

1. Pain Points

Rapid Wear from Ore Impact: Metal screen plates
have a 3-month lifespan and generate noise levels of 110 dB.

2. Solution

Install polyurethane wear-resistant liner plates
(Shore 90A hardness, embedded with stainless steel mesh, 20 mm thick).

3.Results

3.1Extended Lifespan & Cost Savings

Lifespan increased to 2 years with a 65% reduction in maintenance costs.

3.2Noise Reduction

Operational noise reduced to 80 dB, improving workplace safety and comfort.

3.3Enhanced Screening Efficiency

Screening efficiency improved by 20%;Particle breakage rate reduced to 3%, minimizing material loss.

Solution for Reducing Grain Breakage in Silo Feeding

1. Pain Points
High Breakage Rate: Existing PE liner plates in the grain silo chutes at a port result in >1.5% breakage rate for wheat and corn during loading.
Residue Accumulation: Seams in the liners trap mold-contaminated grains and dust, increasing cleaning costs and posing food safety risks.

2. Solution
Replace PE liners with flame-retardant, anti-static polyurethane wear-resistant liner plates.
Detachable chute liner plates with smooth, seamless design eliminate residue traps.

3. Implementation Results
① Reduced Breakage Rate: Grain breakage decreased from 1.5% to 0.8% (meeting GB/T 6971-2007 standards).
② Enhanced Durability: Liner wear rate reduced from 1.8 mm/year to 0.25 mm/year (tested per ASTM G65).
③ Hygienic Design: Seamless chute liners minimize mold growth risks.
④ Anti-Static Performance: Surface resistance <10⁹ Ω suppresses dust adhesion, ensuring operational safety.

Wear Solution for Coal Conveyance System Drop Chutes

1. Pain Points
① Short Lifespan: Traditional liners (manganese steel/ceramic) last only 6–12 months, requiring frequent shutdowns for replacement.
② Frequent Blockages: High-moisture coal adheres to rough pipe walls, necessitating 2–3 unclogging operations per month, reducing efficiency.

2. Solution
Deploy high-wear-resistant polyurethane liner plates (Shore A hardness: 90–95).

3. Results
① Extended Lifespan: Service life increased to 3–5 years, with 70% fewer replacements.
② Reduced Blockages: Self-lubricating surface lowers unclogging frequency to 1–2 times/year and reduces residue by 90%.

Upgrade Plan for Coal Conveyor Cleaning Systems

1. Pain Points
① Frequent Replacement: Rubber cleaners require replacement every 3 months, with severe spillage pollution.
② Residual Material & Belt Misalignment: Single-stage cleaning fails to remove residues, causing belt misalignment and accelerated wear.

2. Comprehensive Solution
Implement a Three-Stage Cleaning System:
①Primary Cleaner
Positioned behind the drive drum, removes 90% of large particles (service life: 18 months).
②Secondary Cleaners (×2)
Installed 15–20 meters from the head and at the belt midpoint, clears fine dust to prevent spillage (service life: 12–15 months).
③Empty-Section Cleaner
Deployed on the return belt segment with a flushing system to minimize contamination.

3. Implementation Results
① Spillage Reduction: Spillage rate reduced by ≥98%, extending belt lifespan by 2–3 years and lowering maintenance costs by 40%.
② Safety Compliance: Meets GB 12476.1-2013 standards for explosion-proof operations.