Alumina Ceramic Lining Bend Pipe For Pulverized Coal Powder Conveying

Alumina Ceramic-Lined Bend Pipes for Pulverized Coal Conveying

Alumina ceramic-lined bend pipes are engineered for efficient transportation of pulverized coal powder, offering exceptional wear, heat, and corrosion resistance for industrial applications.

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The combination of high rigidity of ceramic and high elasticity of steel gives the pipe unmatchable features as an abrasion resistant, heat resistant and corrosion resistant material for use in the fields of power generation, metallurgy, mining, and chemical industry etc.. It has many advantages over steel pipes, cast stone pipes, and steel-plastic compound pipes.

The combination of high rigidity of ceramic and high elasticity of steel gives the pipe unmatchable features as an abrasion resistant, heat resistant and corrosion resistant material for use in the fields of power generation, metallurgy, mining, and chemical industry etc.. It has many advantages over steel pipes, cast stone pipes, and steel-plastic compound pipes.

The Ceramic tile lined pipe spool is composed by steel pipe, adhensive and abrasion-resistant ceramic, we use 20 # seamless steel pipes shaping with hot bending (it is different from centrifugal casting or steel plate rolling), the ceramic tiles bonding with GWJ-350 high temperature-resistant inorganic adhesive which was developed by TsingHua University and affix abrasion-resistant ceramic in the steel pipes, we use miss match installation instead of directly bonding (this technology was used in the bridge building a thousand years ago), and forms a firm wear-resistance layer after heating solidification. Ceramic tile lined pipe spool is applicable for the pneumatic powder-feeding, and can be used under a temperature of 350℃without aging and peeling for long life. The service life is 4-5 times than the normal abrasion-resistant pipes.

Alumina ceramic-lined bend pipes are engineered to transport pulverized coal powder efficiently. The integration of high-hardness alumina ceramics with durable steel provides exceptional wear resistance, heat resistance, and corrosion resistance, making them ideal for industries such as power generation, metallurgy, mining, and chemicals.

Key Features

  • Wear Resistance: The alumina ceramic lining offers superior abrasion resistance, significantly extending the service life of the pipe compared to traditional materials.
  • Heat Resistance: These pipes can withstand high temperatures, maintaining structural integrity and performance in demanding thermal environments.
  • Corrosion Resistance: The ceramic lining provides excellent resistance to chemical corrosion, ensuring reliability when conveying abrasive and corrosive materials.

Applications

  • Power Plants: Utilized in conveying pulverized coal powder, ash slag, and flue gas desulfurization materials, enhancing the durability of the piping systems.
  • Mining and Metallurgy: Applied in transporting abrasive ores and slurries, reducing maintenance costs and downtime.
  • Chemical Industry: Suitable for conveying corrosive substances, maintaining performance and longevity under harsh chemical conditions.

Advantages

  • Extended Service Life: The combination of ceramic and steel materials results in a pipe that outlasts conventional steel pipes, cast stone pipes, and steel-plastic composite pipes.
  • Reduced Maintenance: High wear and corrosion resistance lead to lower maintenance requirements and operational costs.
  • Structural Integrity: The steel exterior provides mechanical strength, while the ceramic lining offers protection against wear and corrosion, ensuring the pipe's structural integrity under various operating conditions.

Considerations

  • Installation: Proper installation is crucial to maximize the benefits of alumina ceramic-lined pipes. Ensure that joints and connections are appropriately handled to maintain the integrity of the lining.
  • Customization: These pipes can be customized in terms of diameter, bend radius, and length to meet specific operational requirements.

Customized Alumina Ceramic Lined Project

Our alumina ceramic lined project consists of alumina ceramic tiles affixed to a natural rubber base mold with high tensile strength, securely mounted on a steel plate.

These ceramic-lined products serve as cost-effective alternatives to expensive materials such as stainless steel, titanium, nickel, cast stone, or alloy tools. The unique combination of the high rigidity of ceramics and the elasticity of steel results in a heat-resistant and corrosion-resistant material, making it widely applicable in various industries, including power generation, metallurgy, mining, and the chemical industry.

The specifications for ceramic tile lined chips

There are many clients who are concerned about the specification of ceramic lined tile sheet, because it is related to whether the ceramic chip purchased can be used.

Production details of the wear resistant alumina ceramic tiles
Various specifications
Welding type wear resistant ceramic tiles
ceramic mosaic tiles
ceramic mosaic tiles
ceramic mosaic tiles
12mm ceramic mosaic tiles
Alumina Ceramic Wear Tile

Anti-corrosion service life.

Main performance indicators: The wear resistance of the ceramic work surface is more than 100 times that of manganese steel, 20 times that of high chromium cast iron, and several times to several dozen times higher than that of wear resistant rubber. Ceramic metal bonding strength up to 300kg/cm2 can be used up to 500°C.

The use of equipment made of wear-resistant ceramics, the service life can be increased by more than five times, and the performance-cost ratio can be increased by more than three times.


Wear-resistant ceramic performance characteristics

Wear resistant ceramic lining is AL203 as the main material, with rare metal oxide as solvent, after more than 1700°C high temperature roasting to special ceramic, embedded into rubber , polyurethane or mild steel for the purpose of low to moderate impact and highly abrasive sliding application.

  1. Hardness, general hardness is greater than HRA80, the highest can reach 92 or more.
  2. Excellent wear resistance: at least 200 of ordinary carbon steel and 10 times more than high chromium cast iron.
  3. Light weight: The specific gravity of alumina is generally only about 3.6, silicon carbide is about 2.7, and zirconia is about 6.
  4. Good heat resistance: The heat resistance of different wear-resistant ceramics is not the same, but it is used for particle-resistant scouring, and there is no problem in heat resistance.

Why Ceramic Coating?

The abrasion pipe of thermal power plant is mainly conveying raw coal powder, ash slag, flue gas desulfurization (FGD) limestone powder and slurry, due to the transmission of medium velocity fast, poor operating conditions, resulting in pipelines, especially elbow, variable diameter pipe serious wear and corrosion, not only consumes a lot of metal materials, but also to the thermal power plant security, economic operation has brought hidden dangers. The abrasion mechanism of pipeline is mainly based on erosion wear. Wear-resistant pipe can be divided into two categories: single metal pipe and composite pipe.


Alumina ceramic tile for wear resistant lining

Ceramic tile lined elbow
Ceramic tile lined elbow
Ceramic tile lined elbow

Remarks

  • Ceramic coating is used by the OE’s extensively on 2007 & newer exhaust.
  • Ceramic coating is recommended for parts that are exposed to extreme heat.
  • Ceramic coating is used inside of chrome stacks to reduce the outside temperature of the pipe.
  • Ceramic coating will increase the longevity of the chrome stack.
  • Ceramic coating produces more usable power.
  • Ceramic coating protects parts from thermal fatigue.
Ceramic tile lined Expansion Joint

Ceramic tile lined Expansion Joint

The lined ceramic double-flanged limited expansion joint is created by adhering alumina ceramic tiles to the inner wall of the pipe using a high-temperature adhesive.

After heating and curing, it forms a robust anti-wear layer. This type of product has a relatively simple manufacturing process, a short production cycle, and lower costs.

Technical Specifications: SunnySteel offers various models of ceramic lined wear-resistant pipes and can also customize production as per requirements. Ceramic lined wear-resistant pipes are essentially not restricted by pipe size, and they can be produced for diameters ranging from 1 inch to 120 inches or even larger.

Inside

Inside ceramic tiles

It is important to note that expansion joints are not limited to ceramic tiles alone. They are also used in other applications, such as in pipework systems and ducts, where ceramic lined pipe expansion joints are designed to absorb dimensional changes caused by heat-induced expansion.

When installing ceramic tiles, it is crucial to consider the proper placement of expansion joints. Guidelines suggest that grout lines must be wide and proportional to the size of the tiles, and expansion joints in the tiling must also be calculated accordingly.

Ceramic tile lined expansion joints are used to accommodate the movement and expansion of ceramic tile surfaces, preventing cracks and damage. They can be installed in various ways, such as creating gaps between tiles or toothed around the tiles in an offset-bond pattern.

Ceramic lining for a screw conveyor

Ceramic lining of screw conveyor

Ceramic-Lined Screw Conveyors for Conveying Abrasive Coal

Ceramic lining of screw conveyor

Example of a screw lining with alumina ceramic mosaic size 20x20x4 mm throughout an overall length of nearly 5 m. Bonded by means of a 2-component special adhesive.

Ceramic lining for a screw conveyor

After heating and curing, it forms a robust anti-wear layer. This type of product has a relatively simple manufacturing process, a short production cycle, and lower costs.

Production details of the wear resistant alumina ceramic tiles

Features of Ceramic Tile Lined Pipes

Steel-shell composite pipes with high-alumina ceramic tile lining for extreme wear conditions.

Ceramic tile lined pipe is a composite product developed by integrating advanced domestic and international technologies. It consists of a steel outer shell and an inner lining of high-alumina ceramic tiles, delivering exceptional wear resistance and long service life.

Anti-dislodgement ceramic tiles are precisely positioned and bonded with a high-strength inorganic adhesive, then further secured by wear-resistant steel stud welding. This dual-reinforcement method ensures that the ceramic tiles remain firmly attached under severe operating conditions. The product offers flexible installation, excellent wear performance, convenient fabrication and moderate cost.


High Hardness

High-alumina ceramics achieve a Rockwell hardness of HRA 80–90, second only to diamond and far superior to wear-resistant steel and stainless steel.


Excellent Wear Resistance

The wear resistance of high-alumina ceramics is approximately 266 times that of manganese steel and 171.5 times that of high-chromium cast iron. Field investigations and customer feedback confirm that equipment service life can be extended by more than 10 times under identical operating conditions.


Corrosion Resistance

High-alumina ceramics are inorganic oxides with an extremely stable molecular structure and no electrochemical corrosion mechanism. They resist attack from acids, alkalis, salt solutions and organic solvents, making them suitable for chemically aggressive environments.


Thermostability

High-alumina ceramic linings can operate continuously at temperatures up to 1,400°C, making them suitable for high-temperature flue gas, ash handling and furnace applications.


Good Self-Lubricity

High-alumina ceramics exhibit excellent self-lubricating properties and low surface adhesion. The surface roughness is only 1/6 that of steel pipes, resulting in significantly lower flow resistance and reduced material buildup.


Light Weight

The density of high-alumina ceramics is approximately 3.6 g/cm³, about half that of steel. This significantly reduces the overall weight of the piping system, making transportation, handling and installation easier and more cost-effective.

Production details of the wear resistant alumina ceramic tiles

Technology and Structure of Ceramic Tile Lined Pipes

Three-layer composite piping system combining structural steel, high-alumina ceramic lining and engineered bonding technology.

Ceramic tile lined pipe is a composite product consisting of three layers: an outer steel pipe, a high-strength inorganic adhesive layer, and an inner high-alumina ceramic lining. The ceramic layer typically exhibits a white appearance and is manufactured from ≥95% alumina (Al₂O₃) ceramic. Standard service temperature is below 200°C.

Commonly used ceramic lining configurations include ceramic blocks, dovetail-interlocked tiles, welded-stud-fixed tiles, mosaic layouts and grooved locking systems. These designs deliver excellent wear resistance and significantly extend equipment service life in abrasive environments.

Performance

  • High Hardness
    Rockwell hardness HRV 80–90
  • Excellent Wear Resistance
    Equivalent to 20–30× the wear life of high manganese steel
  • Light Weight
    Density 3.9 g/cm³ (≈50% of steel), reducing structural load
  • Premium Adhesive System
    Imported inorganic adhesive, bond strength ≥10 MPa
    Service temperature: −60°C to +250°C
    Welded ceramic assemblies resistant up to 800°C

Specifications

  • Nominal Diameter: ≥ DN100
  • Steel Pipe Thickness: ≥ 4 mm
  • Shell Material: Q235 carbon steel or stainless steel
  • Ceramic Thickness: 4 / 6 / 8 / 10 mm (customizable)
  • Connections: Flanged, welded, casing or V-type connectors
  • Design Pressure: ≤ 1.0 MPa
    (Higher pressures available upon request)

Technical Indicators

  • Ceramic Grade: Al₂O₃ ≥ 92–95%
  • Bulk Density: 3.9 g/cm³
  • Tensile Strength: ≥ 1,030 MPa
  • Flexural Strength: ≥ 212 MPa
  • Hardness (HRV): 80–90

Process of ceramic tile lined pipe

The ceramic tile is pasted on the steel pipe with high temperature wear-resistant glue to play a wear-resistant role, and the pipe is generally white. Generally used for large diameter pipes.

Steel body Grinding-> Ceramic patch-> Paste-> Welding-> Detection

Bends and other profile sections can be clad in whole and this process has changed the traditional practice to fabricate bend and other profile sections by drawing polyline without changing flow pattern of material inside piping, greatly reducing conveyance resistance of material.

Production requirements for the process of pasting tiles on the inside of steel pipes

The ceramic tiles are pasted to the inner wall of the steel pipe with high temperature wear-resistant glue to play a wear-resistant role.

No. Process Standard Inspection
1 Cleaning the inner surface of the fitting Clean up all the rubbish and floating ash on the inner surface of construction equipment and pipe fittings. Checked by the construction supervisor.
2 Rust removal, oil removal, paint removal The rust, grease, and paint on the bonding surface must be completely removed without leaving any traces. Use iron sand skin, angle grinder, and soft sand skin to polish to see the metallic luster. After cleaning, wipe the surface with a cloth until there is no trace of dirt. After the inspection and acceptance by the quality inspector, the construction of the next process can be carried out.
3 Formulated Adhesives It must be measured in strict accordance with the prescribed proportion, and how much should be used; it must be stirred evenly, and the overall mixing should not be less than 4 times; if the mixed embedded material is added, the binder must be mixed well before adding the mixture and mixing Not less than 3 times. Assigned by designated personnel.
4 Repair of the adhesive surface If there are potholes on the pasting surface, especially if there are large potholes on the pasting surface of the old equipment, the wear-resistant ceramic sheet must be gradually filled with embedded materials. After the inspection and acceptance by the quality inspector, the construction of the next process can be carried out.
5 Paste wear-resistant ceramic tiles There should be no dust or dirt on the surface of the ceramic tiles. The surface of the repaired inlay material must be leveled. The pasting surface must be wiped again. Scrape the adhesive on the pasting surface for 1-2 times and scrape it flat. Scrape the back of the ceramic sheet for 1 It is necessary to ensure that there is a certain thickness of uniform adhesive available for pasting. Checked by the person in charge of the construction of the pasted ceramic tiles.
6 Repair of gaps and corners between ceramic tiles The gaps exceeding 3 mm must be repaired with wear-resistant and anti-corrosion fillers, the edges and corners must be neat, and the bevels must be trimmed with special ceramic tiles and then filled with fillers. After the repair, the person in charge of the construction and the quality inspector will conduct a comprehensive quality inspection, and submit it to Party A for acceptance after passing the inspection.
7 Maintenance time After construction and repair are completed, it can be put into use after natural maintenance for more than 12 hours after acceptance by Party A.

Packaging and delivery of ceramic tile lined pipes

There are probably hundreds of different methods for packing a abrasion resistant pipe and Elbows, and most of them have merit, but there are two principles that are vital for any method to work prevent rusting and Sea transportation security.

Pack ceramic tile lined pipes and fittings
Pack ceramic tile lined pipes and fittings
Pack ceramic tile lined pipes and fittings
Pack ceramic tile lined pipes and fittings
Pack ceramic tile lined pipes and fittings
Pack ceramic tile lined pipes and fittings
Pack ceramic tile lined pipes and fittings
Pack ceramic tile lined pipes and fittings
Pack ceramic tile lined pipes and fittings
Pack ceramic tile lined pipes and fittings
Pack ceramic tile lined pipes and fittings
Pack ceramic tile lined pipes and fittings
Pack ceramic tile lined pipes and fittings
Pack ceramic tile lined pipes and fittings
Pack ceramic tile lined pipes and fittings
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