The selection of wear-resistant ash removal pipeline for ore pulp transportation should consider the factors of wear strength, corrosion environment, transportation distance and economy. The main material types are bimetallic composite pipeline, ceramic lined pipeline and ultra-high molecular weight polyethylene pipeline.
Selection of Wear-Resistant Ash Removal Pipelines for Slurry Transportation:
1. Bimetallic Composite Pipeline
Advantages: Wear resistance over 20 times that of ordinary steel pipes, with temperature tolerance up to 800℃ and excellent impact resistance.
Applicable scenarios: High-flow (>25m/s) coal ash and slurry transportation, particularly suitable for iron ore processing plants containing quartz sand.
2. Ceramic-lined Pipeline
Structure: Outer carbon steel support with inner lining of alumina ceramic (Al₂O₃ >=92%, Mohs hardness 9), transition layer ensures bonding strength.
Advantages: Wear resistance over 10 times that of high-chromium cast iron, Vickers hardness >=1200HV; Smooth inner wall (roughness <=0.8μm) reduces friction by 20%, acid/alkali corrosion resistance (pH 2-12).
Applicable scenarios: Long-distance slurry transportation, high-temperature slag (-50℃~900℃), and sulfur-containing media.
3. Ultra-High Molecular Weight Polyethylene Pipe (UHMW-PE)
Features: Wear resistance is 27 times that of stainless steel, excellent impact resistance, self-lubricating and anti-adhesive properties.
Advantages: Lightweight, flexible, low-temperature resistant (-269℃), suitable for tailings water return and river dredging.
Limitations: Maximum temperature tolerance is 80℃, use with caution in high-temperature environments.
Bent Heads/Custom Components: Utilize backpack-style thickened ceramic layers (20mm) or eccentric dual-metal bends to withstand heavy particle impacts.
Long-Distance Transportation: Ceramic composite pipes can reach individual lengths of 12 meters, significantly reducing joint leakage risks.
Intelligent Protection: AI algorithms predict pipeline wear patterns and optimize localized reinforcement designs (e.g., nickel-based alloy transition layers).
1. 20 years of experience in casting cast iron plate, quality assurance, timely delivery
2. Perfect machining and inspection equipment can directly provide finished parts and meet the inspection requirements of customers
3. It has independent import and export rights and can export products to all parts of the world
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