Cast basalt pipe with rebar

Cast basalt pipes with rebar are a type of pipe used in industrial applications that require high resistance to wear and abrasion.

Cast basalt pipe with rebar

Cast basalt pipes consist of an inner lining made of cast basalt, a naturally occurring volcanic rock that is melted and cast into shapes. The basalt lining is then reinforced with a layer of steel rebar, which provides additional strength and durability.

Cast basalt pipes with rebar are commonly used in industries such as mining, energy generation, and chemical processing, where the transportation of abrasive or corrosive materials can quickly damage other types of piping systems. The combination of cast basalt and rebar makes these pipes extremely resistant to wear, erosion, and corrosion, making them ideal for use in harsh and demanding environments.

Some of the benefits of cast basalt pipes with rebar include reduced maintenance costs, longer service life, and improved process efficiency. They are also lighter and easier to install than traditional piping systems, which can save time and labor costs.

In summary, cast basalt pipes with rebar are a durable and high-performance piping option that is ideal for use in harsh industrial environments. They combine the natural strength and durability of cast basalt with the added reinforcement of steel rebar to provide superior resistance to wear, erosion, and corrosion.

Our factory can produce cast basalt pipe of nominal diameter φ40mm ~ φ800mm, which φ600mm above the large-diameter, 1000mm length tube is the exclusive production of cast basalt pipes.

Adopt centrifugal casting manufacturing cast basalt pipe reducer. Molten lava in the vacuum state is poured into the high-speed rotation the centrifuge. In fixed standard time to exit the centrifuge into the annealing furnace. Cast basalt pipes have an excellent performance of high abrasive and high corrosion resistance. Often in the form of cast basalt pipe reducer appeared in various operating conditions the pump outlet location.

As hydraulic or pneumatic conveying worn or corrosive wear resistance, corrosion resistant lining material pipe can effectively protect the pipe prolong the service life of pipelines.

The whole production process of cast basalt wear resistant materials are completely finished under the monitoring of internal control procedures for the safe and orderly.

Why get your cast basalt pipes from Sunny Steel?

Cast basalt pipe can be divided into straight pipe, elbow, three-way (four-way) pipe and variable diameter pipe, etc.

The right material for the job

Basalt is substantially more erosion-resistant than iron or steel.

In fact, over time, as the pipe experiences more friction from the media being transported, the coefficient of friction increases—creating even more beneficial flow outcomes.

Ready for anything

Basalt-lined pipes are perfect for many applications including slurry lines for all mineral processing and hydraulic conveying. They’re commonly used for fine material conveying.

Cast basalt is an all-round cost-effective and adaptable lining material that extends the life of equipment.

Advantages

Good abrasion resistance

As the wear surface, the cast basalt ceramic is 8 Mohs hardness, whose wear resistance is 10 times that of hi-chrome cast iron alloy pipes. It can make little wear loss of the pipe during running, which extend the service life of the equipment largely.

Good thermal stability and excellent corrosion resistance

-50-350 ℃ is ideal temperature for the cast basalt ceramic lined pipe, and the inner wall of the pipe is cast basalt plates or tubes which have unique chemical properties of wonderful acid and alkali resistance.

Light Weight

The density is 3.63g/cm³, which is only half of the steel to reduce the load of equipment largely.

Easy and fast to fix on site

Welding, flange, flexible joint are available for fix with the equipment.
All the performance of Anti-wear cast stone lined steel pipe / cast basalt lining composite tube makes low project costs, the charges can be about 20-30% less than wear steel piping project.

Normal Specification

Full range of Anti-wear cast stone lined steel pipe / cast basalt lining composite tube including straight pipes, bends, elbows, tees,Y-pieces, reducers,crosses and etc can be available from our factory.
Regarding the connection ways, we can provide with the normal way of welding or flange or to customize according to the customer’s requirements.

Main Specification Of Cast blast lined pipe and fittings

Cast Basalt Pipe DN
(mm)
Standard Steel Pipe OD
(mm)
Cast Basalt Thickness
(mm)
Length
(mm)
80 159 25 4000
100 168

17.5

20

4000
6000
8000
125 195
150 219
175 245 6000
8000
10000
12000
200 273
225 300
250 325
275 345
300 377
350 426
400 478 20
25
450 529
500 600 25
550 650
600 720 30 6000
650 770
700 820
750 870
800 920

Other specifications of cast steel pipe lined with basalt can be manufactured according to customer technical requirements. Suitable for large-diameter basalt lining steel pipes with a nominal diameter greater than 800mm. Generally, according to the running status of the pipeline, different cement is used to fix the basalt brick inside the finished steel pipe to complete the basalt lining steel pipe. Its advantages are good wear resistance, wide range of use, basically not limited by the size of the pipeline and low cost of pipeline installation.

Comparision Chart

Comparison of Ceramic lines with few other materials under standard conditions :

Material Thickness(mm) Approx life ( Months )
Mild Steel 10 3-5
Cast Iron 20 6-8
Ni-Hard 20 12-14
Cast Basalt 30 20-25
Ceramic 10 35-40

Ceramic lined equipment and bends

Hard & Compact Smooth & Inner Withstands High-Abrasion & Corrosion In any of the process industries especially Sled and Cement corrosion and abrasion lead to significant downtime of the plant. Further, the useful life or the equipment itself may get impaired because of the high abrasive nature of the materials being used. Thus, ‘wear mechanism’ results in hut down, replacement, etc., which is costly, resulting in loss to tilt: tunic of millions of dollars.


Characteristics

  • High resistance to all types of chemicals.
  • High resistant to sliding abrasion.
  • Non weld ability & smooth surface results ill easy How of materials.
  • Can With stand and temperature up to 200 C.
  • Smooth Surface and resistant to abrasion & corrosion.

Technical details:

  • Friction Resistance: As more material is passed over Cast Basalt, it gets polished up thereby reducing friction further. Cast Basalt improves in service after getting polished. Wetting also improves its performance in practical applications.
  • Impact Resistance: Direct Impact Resistance at a perpendicular angle is low like all other ceramics, but it can be increased with proper installation by reducing the angle of impact. Cast Basalt can be used to mitigate sliding abrasion. Moreover, external impact strength of composite basalt pipe (enclosed in M.S. Shell) is always more than that of bare Ni-hard Pipe.
  • Chemical Resistance: Cast Basalt is almost absolutely acid/alkali resistant (except Hydrofluoric Acid) and hence corrosion resistant.
  • Weight and Sizes: Basalt Tiles are available in regular shape square of 200 x 200 x 30 mm thick, weighing approximately 90 kg/sq. m; whereas bends and pipes are lined using Basalt Cylinders of various standard sizes from 50NB up to 500NB.
  • Temperature: Cast Basalt withstands temperature up to 450ºC.
  • Life: Life of basalt-lined pipe is estimated to be 7 to 10 times that of Cast Iron, and 3 to 4 times that of Ni-hard Steel.

Design aspects

The bend radius should be minimum 3 times of the nominal bore. At discharge end of each bend, cast basalt lined straight pipe of length 5 to 12 times the nominal bore must be used.

Design aspects
Why are cast basalt lined pipes so wear-resistant Fused cast basalt

Why are cast basalt lined pipes so wear-resistant?

Cast basalt pipe can be divided into straight pipe, elbow, three-way (four-way) pipe and variable diameter pipe, etc.

Cast basalt lined pipes exhibit exceptional wear resistance due to several key characteristics:

Structural Design

Cast basalt lined pipes are engineered with a well-thought-out structure. The internal arrangement consists of interlaced pyroxene spheres or feather-like crystallites of 0.05-0.1 mm, enhancing the material's hardness and wear resistance.


Low Water Absorption

These pipes have low water absorption, contributing to their resistance against the deteriorating effects of moisture.


High Compressive Strength

Cast basalt pipes possess high compressive strength, enabling them to endure heavy loads and pressures without deformation.


Chemical Resistance

With the exception of hot phosphoric acid, hydrofluoric acid, and dissolved alkali above 30? cast basalt exhibits excellent corrosion resistance to a wide range of substances, including inorganic acids, organic acids, alkalis, salts, water, and organic solvents.


Hardness

The material's Mohs hardness reaches 7-8, indicating a high level of hardness that directly correlates with superior wear resistance. Harder materials generally exhibit better resistance to wear and abrasion.


Atomic and Molecular Structure

The combination of silicon and oxygen atoms in the silicate mineral structure is bound by strong forces at the atomic and molecular levels, contributing to the overall strength of the material.

While individual cast basalt lined pipes demonstrate good wear resistance in applications like blast furnace tanks, it's important to note the inherent brittleness of ceramic materials. This brittleness may result in breakage during heavy impacts. Additionally, single-piece pasting construction may exhibit signs of aging over extended periods. However, when properly applied and maintained, cast basalt lined pipes remain a popular choice for wear-resistant applications due to their durability and performance.

The connection of cast basalt line steel pipe

Cast blast lined pipe and fittings can connect with flange, quick assembly joints and welding.

Flange connection

Flange connection

Flange connection is one kind of common pipeline installation connections. By two pieces of flanges, pipeline, valve, equipments are connected and it forms a tight piping system. When pipeline pressure is larger, flange connection is priority selection. Flanges have lots of different sizes. Flange size is determined according to pipeline normal diameter and pipeline operation pressure.

The parameters of the outside steel pipe will be decided according to the working pressure of the system. The connection of the pipes and fitting will be of flange connections, easy—flexible joint connection or by welding.

By two pieces of flanges,pipeline,valve,equipments are connected and it forms a tight piping system. When pipeline pressure is larger, flange connection is priority secection. Flanges have lots of differents sizes.

Flange size is determined according to pipeline normal diameter and pipeline operation pressure.


Welding & Beveled end

Welding & Beveled end

Beveled ends allow for proper alignment and penetration during welding, ensuring a strong and effective joint. This preparation is commonly used in various industries, especially in piping systems where welded connections are prevalent.

It suits short distance pipeline system without maintenance. It is one kind of common installation connections. It requires installation personnel higher welding ability. It also restricts by welding site, distance, welding positions. Welding connections is inconvenient in later maintenance.


Easy-Flexible joint connection

Easy-Flexible joint connection

It is one of high efficient and rapid installation connection. I t has the below characteristic: easily install and disassemble, fast installation, temperature adjustable compensation function, saving the necessary expansion in long pipeline. Easy-flexible joint also has angle compensation characteristic. At smaller angle turning points, easy-flexible joint can be instead of bends and adjust angle.

Application Areas of Cast Basalt Products

Cast basalt is a highly wear-resistant and corrosion-resistant lining material widely used in pipes, chutes, bunkers, cyclones, and hoppers.

Cast Basalt Lined Pipe Usage

Usage

Cast Basalt Lined Pipe Installation

Installation

Cast basalt has become the global standard for ash slurry pipelines in fossil-fuel power stations and other heavy industries. It significantly extends equipment service life in environments with severe abrasion and corrosion.

It is commonly used as a cost-effective lining material for steel, cast iron, rubber, or polyurethane equipment, offering 5–10 times longer service life than traditional materials.

Welding & Beveled end

Mining & Mineral Processing

  • Tailings pipeline
  • Concentrate pipeline
  • Ore transport pipeline
  • Sand pneumatic conveying pipe
  • Slurry chutes & launders
  • Centrifugal concentrator launder
Easy-Flexible joint connection

Power & Ash Handling

  • Ash and slag transport pipe
  • Coal-water slurry pipe
  • Blast furnace slag ditch
  • Coke conveying chute
  • Cyclone separator
  • Raw ore chute
Cast basalt composite pipes used for years

Cement & Other Industries

  • Air separators, chain conveyors
  • Silica hoppers, coal hoppers
  • Raw mill ducts, grate cooler housing
  • Edge-milling machine, disk feeder
  • Load/unload chutes in refractory industry
  • Various storage bins, funnels and chutes