Wear resistant lined bends and pipes for pneumatic conveying are designed to withstand high levels of abrasion caused by the movement of materials.Download PDF
Wear resistant lined bends and pipes for pneumatic conveying are designed to withstand high levels of abrasion caused by the movement of materials such as granules, powders, and slurries through pneumatic conveyor systems. These pipelines experience high levels of wear which can cause damage over time and result in costly maintenance and downtime.
To combat this issue, abrasion-resistant linings are applied to the inner surface of the pipe or bend, which reduces the amount of wear and tear. The abrasion-resistant lining can be made from various materials such as rubber, ceramic, polyurethane or a blend of these materials.
Features of wear resistant lined bends and pipes:
In summary, wear resistant lined bends and pipes for pneumatic conveying are an excellent solution for protecting pipelines from abrasion and wear caused by the movement of abrasive materials. They provide cost-effective, long-lasting, and versatile solutions for many industries that need to transport abrasive materials.
Frequently a pneumatic conveying system is used to convey materials with high abrasiveness, that is, with a marked tendency to consume by friction to the wall of the tubing where they flow.
For example foundry sand, clinker, ash from boiler combustion, quartz.
The phenomenon of wear in the tubes is due in part to the conveying speed and the consequent friction of the product in the pipes. But the main cause is the changing direction, which is why the wear of major concern takes place in conveying bends, due to the increased friction.
That is why the bends of a pneumatic conveying line are manufactured with the bending radius the widest possible and in any case with strong limitations with respect to the smallest value adoptable. And, in the case of heavy abrasion, wear resistant internal coatings are used.
The manufacture is an essential factor for the effectiveness of the abrasion resistant components, for example the perfect alignment of the inner sectors of lining that allows a longer life of the component as well as the selection of a chemical composition that involves adequate hardness.
We propose wear resistant lined bends with thicknesses adequate for heavy duty, coupled with straight sections of suitable length, to take account of the angle of incidence with which the particles collide with the surface and the lingering effects of turbulence of the flow after the change of direction. We also design and manufacture special components of various shapes, “T”, “Y”, “S”, with sizes and lengths also on design.
The main raw material of wear resistant ceramic ring is a special kind of ceramic with AL2O3 as the and the rare metal oxide as the flux, which is melted by high temperature at 1700 °C. The Ceramic Sleeves Lined Pipe as a whole part, and then assemble it into the steel pipe with our high-strength-temperature-resistant epoxy adhesive.
Recently 95% alumina ceramic sleeve lined pipes, elbows and T pipes have been largely applied in lithium battery material conveying system. The big diameter ceramic sleeve is always a big problem for the ceramic tube manufacturers since it’s very difficult to control the deformation rate of the ceramic sleeve after it’s sintering .Also It will also need an advanced and big isostatic pressing machine to do this .So it will not only express the company’s production capability ,but company’s technology. Right now, our factory have owned both advantages which are wear resistant ceramic pressing facilities and technologies.
Recently 95% alumina ceramic sleeve lined pipes, elbows and T pipes have been largely applied in lithium battery material conveying system.. The main raw material of wear resistant ceramic ring is a special kind of ceramic with AL2O3 as the and the rare metal oxide as the flux, which is melted by high temperature at 1700 °C. The big diameter ceramic sleeve is always a big problem for the ceramic tube manufacturers since it’s very difficult to control the deformation rate of the ceramic sleeve after it’s sintering .Also It will also need an advanced and big isostatic pressing machine to do this .So it will not only express the company’s production capability ,but company’s technology. Right now, our factory have owned both advantages which are wear resistant ceramic pressing facilities and technologies.
The wear resistant ceramic ring is a special kind of ceramic with Al2O3 as the main raw material and the rare metal oxide as the flux, which is melted by high temperature at 1700 oC.
Ceramic sleeve lined pipe has a continuous ceramic liner covering the inner surface of the pipe. The ceramic liner, or sleeve, is typically made of high-quality alumina ceramics, which provides excellent resistance to wear, abrasion and corrosion.
Ceramic sleeve lined pipes are commonly used in industrial applications where the pipeline is exposed to harsh conditions, such as in mining, power generation, oil and gas, and chemical processing. The ceramic sleeve provides superior wear resistance and protects the underlying steel pipe from premature failure due to abrasion or corrosion.
In addition to their excellent wear properties, ceramic sleeve lined pipes may also provide benefits such as improved flow rates, lower maintenance costs, and longer service life. They may also be used in applications where hygiene is important, as the ceramic sleeve lining is non-toxic and does not react with most chemicals.
Ceramic sleeve lined pipes may be manufactured in various sizes and shapes, including elbows, tees, and reducers, to meet the specific requirements of each application. The ceramic sleeve may be bonded to the steel pipe using specialized adhesives and may be installed using conventional welding or mechanical joining techniques.
While ceramic sleeve lined pipes can offer significant benefits in terms of wear resistance and longevity, they are typically more expensive than traditional steel pipes due to the cost of the ceramic liner and specialized manufacturing processes.
Ceramic pipe sleeves are a type of ceramic lining designed to protect metal, plastic or composite piping systems from wear and abrasion caused by high-velocity flows of abrasive materials. They are typically made of highly engineered ceramic materials such as alumina or silicon carbide, which provide excellent resistance to wear, corrosion, and erosion.
Ceramic pipe sleeves are widely used in industries such as mining, power generation, and chemical processing where the harsh environment can cause significant wear and damage to the piping systems.
The advantages of using ceramic pipe sleeves include:
Overall, ceramic pipe sleeves are an effective and reliable solution for protecting piping systems from the harsh effects of abrasive materials. They offer superior wear resistance, corrosion resistance, and improved efficiency compared to traditional materials, reducing maintenance costs and improving system performance.
|Volume Density||3.62 g/cm3||3.65 g/cm3|
|Water Absorption (%)||≤0.02%||≤0.02%|
|Hardness||9 Mohs||9 Mohs|
|Flexural strength||≥2000 Mpa||≥2250 Mpa|
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.
|Tensile Strength, Ultimate||655 MPa||95 ksi|
|Tensile Strength, Yield||290 MPa||42 ksi|
|Elongation at Break (in 2")||0.55||0.55|
304 Stainless Steel Plate has very good formability and can be readily welded by all common methods.
Elbows and tubes with ceramic lining have wide application in different industries like pneumatic and hidraulic transport.
|1. Abrasive products||Grinding wheel granules|
|2. Aluminium plants||Calcined alumina, bauxite, electrode, carbon, crushed bath|
|3. Iron & Steel||Sinter dust, limestone, lime injection, coal, iron carbide, alloy additives|
|4. Mineral wool & insulation products||Perlite, stone dust, refractory fibers, production wastes, dust from sawing operations|
|5. Foundries||Molding sand, dust collection|
|6. Glass plants||Batch, cullet, quartz, kaoline, feldspar|
|7. Breweries, grain processing, feed mills||Corn, barley, soy beans, malt, cocoa beans, sunflower seeds, rice hulls, malting plants|
|8. Cement||Clinker dust, limestone, cement, fly ash, coal, blast furnace slag|
|9. Chemical plants||Caustic lime, fertilizers, lime dust, chrome ore, paint pigments, plastic pallets with glass fi bers|
|10. Mineral mining plants||Kiln feed, ore concentrate, coal tailings, dust|
|11. Coal fired power stations||Coal, fly ash, pyrites, slag, ash, limestone|
|12. Coal mines||Coal dust, mine waste for backfi lling|
|13. Technical carbon products||Technical carbon, dust, graphite for electrodes|
Abrasion resistant pipe using steel skeleton packaging, and the two ends of the pipe with plastic head, to prevent dust and rain into the pipeline inside, to ensure the beauty of the product.
For different production environments, our company has developed a wear-resistant pipe for a variety of media, based on the temperature, wear and corrosion requirements of the field media, and for the initial application of the scene, our company to provide wear-resistant ceramic ring for the Lined composite straight pipe design to meet the on-site wear resistance, heat resistance and corrosion resistance requirements, in view of this program for the new design (formerly ceramic chip technology, there are many gaps, easy to wear).
After the ceramic ring in the pipe is installed and the thread is processed, the dirt outside the pipe is cleaned, and the outer surface of the pipe is treated with three layers of anticorrosive paint to meet the export requirements.
|Item||Data||Characteristics of binder|
We use the Australian Megapoxy high strength structural adhesive, this structural glue is modified epoxy resin polymer, anti-aging ability, and wear-resistant ceramic bonding to form a strong and cushion of the anti-wear layer, cured water, anti-corrosion performance is excellent, toughness, displacement-resistant effect is remarkable.
|Compressive strength (MPa)||40|
|Shear Strength MPa||26|
|Impact toughness Kj/m2||10|
|Elastic Modulus GPa||2.2|
|Expansion coefficient 10-6/℃||20.1|
|Acid resistance（24H）||Stability||Test solution : 15%H2SO4|
|Alkali resistance（24H）||Stability||Test solution: NaOH|