Highlight:
Ceramic Lined Composite Steel Pipe | For Slurry / Ash / Coal Powder Long Distance Conveying
Product Description
In many high-wear conveying systems, the real headache for companies isn't the equipment itself, but rather the ever-increasing frequency of maintenance.
Especially in the mining, cement, thermal power, and port bulk material conveying industries, where materials flow at high speeds for extended periods, ordinary steel pipes are prone to inner wall thinning, localized perforation, and even complete failure. Many sites may operate relatively stably in the initial stages of production, but as operating conditions continue, wear at elbows, tees, and reducers becomes increasingly noticeable, ultimately leading to frequent downtime for maintenance.
For continuous production companies, the impact of such downtime often far exceeds the purchase cost of the pipes themselves.
This is why an increasing number of projects are adopting alumina ceramic-lined pipes to replace traditional wear-resistant steel pipes.
The biggest feature of this structure is the incorporation of high-hardness alumina ceramic within the steel pipe. The ceramic layer resists particle erosion, while the external steel structure provides overall strength and pressure resistance. Compared to traditional solutions that rely solely on the hardness of the steel, this composite structure often achieves a longer service life under high-wear conditions.
However, in practical applications, wear resistance is not solely determined by the hardness of the ceramic material. Often, the true determinant of service life is the proper matching of on-site operating conditions and structural design.
For example, in slurry conveying systems, if the medium contains a high proportion of quartz particles, the pipe wear rate will typically increase significantly. If the conveying velocity remains excessively high for an extended period, the impact energy of the particles on the pipe wall will also increase rapidly. Especially in bends, due to the change in particle movement direction, a large amount of material continuously impacts the outer arc surface of the bend, making these areas prone to initial wear.
Therefore, in actual projects, we typically do not adopt a uniform structure but rather design specifically for the wear characteristics of different areas.
For conventional straight pipe areas, a direct-bonded alumina ceramic structure can be used; for high-impact areas, a stud-welded ceramic structure is more suitable to improve overall stability; and in some conveying systems with significant vibration, a ceramic-rubber composite structure can be used, with rubber cushioning to reduce impact force.
Product Parameters
| Items |
Specifications |
| Content of alumina |
≥92% |
≥95% |
| Density |
≥3.6 g/cm3 |
>3.8g/cm3 |
| Rockwell A hardness |
≥82HRA |
≥85HRA |
| Impact strength |
≥1200 MPA |
≥1500 MPA |
| Fracture toughness |
≥3.8MPa·m1/2 |
≥4.0MPa·m1/2 |
| Vickers hardness |
≥1150HV10 |
≥1200HV10 |
| Bending Strength |
≥290MPa |
≥330MPa |
Product Features
*Inner lining made of high-density alumina ceramic, high hardness, erosion resistance, and resistance to particle cutting.
*Tight bonding between ceramic and steel pipe, vibration resistant, temperature difference resistant, and will not detach or crack over long-term use.
*Smooth inner wall, low flow resistance, no scaling, no material blockage, resulting in higher conveying efficiency.
*High temperature resistance, acid and alkali corrosion resistance, adaptable to complex working environments.
*A full range of custom-made straight pipes, elbows, tees, reducers, tapered pipes, etc., is available.
*Standard dimensions, easy installation, compatible with various industrial conveying systems.
Production Process
| NO |
Process |
Standard |
construction |
| 1 |
Clean the surface, sand, and dust. |
In order to ensure the sticking effect of the ceramic sheet, the sticking position of the pipe should be finely polished before installation to remove rust, and the surface should be cleaned with alcohol and related thinners to ensure that the surface is clean. |
|
| 2 |
Adhesive formulation |
Prepare the viscose according to the proportion and try to use it within half an hour. Before use, be sure to stir well to ensure that the ingredients are fully mixed. When applying glue, it should be applied evenly, the adhesive surface and sides should be covered with glue, and there should be no glue leakage. |
|
| 3 |
Viscose curing |
After the adhesive is applied, press firmly and fill the gap between the tiles when applying the porcelain. After the porcelain is applied, it needs to be cured for 24-48 hours before use. |
|
Product Advantages
Superior Wear Resistance: Service life is 10–20 times that of ordinary steel pipes
Lower Overall Cost: Service life is increased by 3–6 times, and maintenance costs are significantly reduced
More Stable Operation: Reduces leakage, perforation, and unplanned downtime
Greater Adaptability: Can be matched with different slurry concentrations, particle hardness, and conveying velocities
Export-Grade Quality: Rigorous testing, precise dimensions, and compliance with international engineering standards
Full-Process Support: Provides one-stop service including selection, design, and installation guidance
Key Factors Affecting Pipeline Service Life
The actual service life of wear-resistant ceramic steel pipes is not solely determined by the material itself, but rather by a combination of factors, including slurry characteristics, flow rate, ceramic layer quality, bonding strength, installation specifications, temperature variations, the structure of irregularly shaped pipe fittings, and routine maintenance. Scientific selection, rational design, and standardized installation are essential to maximizing the pipeline's lifespan.
Application Areas
Mining and Mineral Processing: Slurry conveying and tailings pipelines for iron ore, copper ore, gold ore, etc.
Thermal Power Generation: Pipelines for fly ash, slag removal, and desulfurization/denitrification systems
Cement Industry: Raw material, clinker, pulverized coal, and dust conveying pipelines
Iron and Steel Smelting: Blast furnace, pulverized coal injection, slurry, dust removal, and material conveying pipelines
Chemical Industry: Conveying granular slurries and corrosive media
Coal and Ports: Loading, unloading, and transferring pipelines for pulverized coal, ore, and powder materials.
Export Markets: Our products are exported to over 30 countries and regions worldwide, including Southeast Asia, the Middle East, Africa, South America, Australia, and Europe. They are widely used in large-scale overseas mines, power plants, cement plants, steel mills, port logistics, and chemical projects, earning long-term recognition from international customers for their stable quality and reliable performance.
Packaging and Transportation:
Inner Packaging: Comprehensive protection with moisture-proof film, pearl cotton, and bubble wrap.
Outer Packaging: Solid wood pallets and steel-strapped reinforced wooden crates for impact and compression protection.
Transportation Method: Primarily sea freight container shipping, supporting FOB, CIF, CFR, and other trade terms.
Labeling Standards: Clear product name, specifications, quantity, batch number, and shipping marks for easy customs clearance and pickup.
FAQ
Q1: What kind of slurry is this ceramic-lined pipe suitable for?
A1:It is suitable for tailings and concentrate slurries of iron ore, copper ore, gold ore, phosphate ore, bauxite, etc., especially for high-hardness, high-concentration, large-particle, and severe abrasion slurries.
Q2:What is the maximum working pressure of the pipe?
A2:The standard pressure rating is 1.6–6.4MPa. High-pressure versions can be customized for long-distance conveying projects.
Q3: What thickness of ceramic layer is recommended?
A3:Standard thickness is 3–8mm; 6–12mm is suggested for severe abrasion conditions. We recommend it based on flow rate, particles, and concentration.
Q4:Can elbows and tees be used with straight pipes?
A4:Yes. We provide complete matching parts, including straight pipes, elbows, tees, and reducers, to ensure system consistency and service life.
Q5:Can the pipes be cut or welded on site?
A5: Pipes are finished as per drawings; on-site cutting/welding is not recommended. We provide special connectors and modification solutions if needed.
Q6:Can the pipe work long-term in low or high-temperature outdoor environments?
A6:Working temperature: -40℃～350℃. It has strong weather resistance and stable performance in outdoor, desert, high-altitude, and harsh environments.
Q7:Will scaling or blockage occur on the inner wall?
A8:Ceramic inner wall is smooth, non-sticky, and non-hydrophilic. It hardly scales, builds up, or blocks with a lower pressure drop.
Q8:How to choose the right ceramic pipe for my working condition?
A8:Just provide slurry concentration, particle hardness, size, flow rate, temperature, and pressure. Our engineers offer free selection solutions.
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