Mining Sludge Pipeline

Abrasive And Corrosive Media

Mining sludge pipelines are built to withstand extreme wear, corrosion, and pressure, ensuring efficient and long-term transport of abrasive tailings and slurry.

Mining Sludge Pipeline Slurry Transport Pipe Abrasion Resistant Pipeline Corrosion Resistant Pipe +1 More

Download

Mining Sludge Pipeline

Abrasive And Corrosive Media

Mining sludge pipelines are built to withstand extreme wear, corrosion, and pressure, ensuring efficient and long-term transport of abrasive tailings and slurry.

Mining Sludge Pipeline Slurry Transport Pipe Abrasion Resistant Pipeline Corrosion Resistant Pipe +1 More

Download

Mining Sludge Pipelines are specially engineered piping systems designed to transport abrasive, corrosive, and highly viscous sludge generated during mining and mineral processing activities. These pipelines play a vital role in moving materials such as mine tailings, concentrates, wastewater, and chemical-laden slurry over long distances to disposal or treatment locations.

To meet the rigorous demands of these environments, mining sludge pipelines are often constructed using wear-resistant liners such as UHMWPE (Ultra-High Molecular Weight Polyethylene), alumina ceramics, rubber, or cast basalt, integrated within a carbon steel or alloy steel outer shell for structural integrity.

The pipeline’s internal surface offers exceptional resistance to abrasion, often 6–10 times higher than standard steel, while also resisting chemical degradation caused by acidic or alkaline content in the slurry. The result is a long-lasting, low-maintenance solution that reduces operational downtime, pipe replacement frequency, and total cost of ownership.

Additionally, mining sludge pipelines can be configured in straight runs, elbows, tees, reducers, and expansion joints to suit various layout requirements in processing plants, flotation circuits, or tailings dams.

What pipes are used in the mining industry?

For more than 30 years, polyethylene (PE) pipe's unique characteristics have made it the product of choice for numerous applications in the mining industry. Heat-fused joints create a monolithic structure that allows long lengths of pipe to be pulled from one area to another.

Installation Guidelines

Connect UHMWPE dredging pipe with floaters and rubber hoses.
Each 12-meter pipe section requires 3 pairs of floaters for proper buoyancy.
Every three pipe sections should be connected to one rubber hose to buffer distortion caused by wind and wave action.

Key Advantages of UHMWPE Dredging Pipe

High Wear Resistance

4–7× that of Q235 steel and 2.7× that of 16Mn steel. Increases pipe flow rate and improves transmission efficiency by over 20%.

Superior Impact Resistance

5× that of HDPE, 2× PC, and 10× PTFE. Resists heavy water hammer impact during pump starts.

Energy Efficient

Low friction coefficient (0.009 vs. 0.013 for steel). Saves up to 25% in energy with same flow rate.

Anti-Scaling

Inner wall roughness of 0.00022 ensures no scaling, eliminating the need for acid cleaning.

High Flexibility

Elongation ≥ 350%. Adapts to crustal settlement and seismic areas without cracking.

What is UHMWPE?

Ultra-high molecular weight polyethylene pipe has superior performance over conventional HDPE pipe such as very high wear resistance, impact resistance, excellent resistance to internal pressure strength, resistance to environmental stress cracking, intrinsically self-lubricating, anti-adhesion, low temperature resistance and excellent chemical resistance.

With a molecular weight typically between 3.5 and 9.2 million g/mol, UHMWPE exhibits superior wear resistance, impact strength, and chemical stability, far exceeding conventional polyethylene or metal pipes in durability and performance.

Superior Wear Resistance

Offers 15× the wear resistance of steel and 4× that of stainless steel, ideal for high-abrasion conditions.

Lightweight Design

Weighs 8× less than steel (specific gravity 0.93–0.95), lowering transportation and installation costs.

Chemical Resistance

Excellent resistance to acids, alkalis, and organic solvents with zero corrosion in chemical environments.

UHMWPE Pipe Specifications

The specifications of Ultra-High Molecular Weight Polyethylene (UHMWPE) pipes can vary based on the manufacturer, application, and specific requirements. However, here are some common specifications that are often associated with UHMWPE pipes:

Common Specifications of UHMWPE Pipes (Wall Thickness in mm)
DN mm	Wall Thickness (Working Pressure)
DN mm	0.6 MPa	0.8 MPa	1.0 MPa	1.25 MPa	1.6 MPa	2.0 MPa
65					8	9
96					9	10
110					8	10
130				8	10	12
159				10	12	15
168			8	10	13	16
205		8	10	12	15	18
219		9	11	13	16	20
236		10	12	14	18	22
250		10	12	15	19	23
273	9	11	13	16	21	25
280	9	11	14	17	21	26
300	10	12	15	18	23	27
315	10	12	15	19	24	29
325	10	13	16	19	24	30
350	11	14	17	21	26	32
377	12	15	18	22	28	35
400	12	16	19	24	30	36
415	13	16	20	25	31
426	13	17	20	25	32
536	16	21	26	23
560	16	22	27	33
630	19	25	30	37
652	20	26	32	38
710	21	27	34
800	23	31	38

Custom sizes available, where moulds already exist from 20–1400 mm OD, up to 65 mm wall thickness. Product can be manufactured in any colour and to all conformance requirements.

Property	Value	Unit
Molecular Weight	3.5 - 9.2 million	AMU
Specific Gravity	0.93 - 0.95	g/cm³
Tensile Strength	39 - 48	MPa
Impact Strength	Highest among thermoplastics	-
Operating Temperature	-200 to +80	°C
Friction Coefficient	0.05 - 0.15	-

Parameter	Range	Standard
Nominal Diameter	65 - 1200 mm	ISO 21304-1
Wall Thickness	8 - 45 mm	Custom
Standard Length	Up to 12 m	Custom
Pressure Rating	Up to 1.6 MPa	PN16
SDR Range	SDR11 - SDR33	ISO Standard
Tolerance	±1% diameter	Precision

UHMWPE is more durable and abrasion-resistant than HDPE. Its long polymer chains provide superior resistance to wear, allowing it to last up to 10 times longer than HDPE in high-wear applications. However, HDPE is easier to machine and weld, making it suitable for applications requiring fabrication.

Low melting point: Not suitable for high-temperature applications.
Limited UV resistance: Degrades under prolonged sunlight exposure.
Difficult to bond: Requires special adhesives or surface treatments.
Limited wear resistance in abrasive environments: Less effective than ceramics or metals.
Not ideal for high-load bearings: Low modulus may cause deformation.
Difficult to machine: Needs special tools due to high molecular weight.
Sensitive to oxidation: Degrades mechanical properties at elevated temperatures.
Water absorption: Can affect dimensional stability and strength.

Despite these drawbacks, UHMWPE remains useful for applications where its unique combination of durability and chemical resistance is advantageous.

The better material depends on the application:

UHMWPE: Ideal for industrial settings where friction, impact, and wear resistance are critical.
HDPE: Better for projects requiring welding or fabrication, such as chemical storage tanks or 3D-printed parts.

High abrasion resistance: Withstands significant wear, ideal for abrasive material transport.
Excellent impact strength: Absorbs high energy without damage.
Low coefficient of friction: Reduces friction and wear, lowering pumping costs.
Good chemical resistance: Suitable for various industrial chemicals.
Lightweight: Easier to install and transport than steel.
Low maintenance: Resists scaling and fouling.
Wide temperature range: Performs well in low to moderate temperatures.

Dredging and mining: Transporting slurries, sand, gravel.
Chemical processing: Transporting corrosive and abrasive chemicals.
Water and wastewater: Used in treatment facilities.
Food processing: FDA/USDA-approved grades used safely in food industries.
Construction: Used in tunnel escape routes and impact-resistant applications.

Low melting point: Unsuitable for high-temperature use.
Creep: May deform under long-term stress.
Cost: Higher initial cost compared to some alternatives.

Surface finish: Should be smooth, uniform, and bright.
Density: Pure UHMWPE floats in water; lower quality sinks.
End finish: Smooth, round ends with good verticality.
Flanging: UHMWPE can be flanged by heating; HDPE requires a stub end weld.

Yes, UHMWPE is available in several grades, each tailored for specific use cases:

Virgin UHMWPE: Standard grade for general use.
Reprocessed UHMWPE: Budget option for less critical applications.
Anti-static UHMWPE: Prevents static buildup.
Tivar: Designed for maximum wear resistance.
Tivar DrySlide: Combines anti-static and self-lubricating properties.

Industrial Applications

UHMWPE pipes are trusted across industries for their extreme abrasion resistance, chemical stability, and lightweight flexibility.

Mining & Mineral Processing

Transporting abrasive slurries, tailings, and mineral concentrates with 4–7x longer service life than steel pipes.

Dredging & Marine

Natural buoyancy and corrosion resistance make it ideal for floating pipeline systems in dredging applications.

Power Generation

Reliable in handling fly ash, bottom ash, and high-temperature residues with reduced energy losses.

Chemical Processing

Safely handles corrosive fluids, solvents, and chemical effluents with excellent resistance properties.

Food & Beverage

Smooth, non-stick surfaces prevent bacterial adhesion and meet hygienic standards in food-grade systems.

Medical & Pharmaceutical

Used in drug delivery, cleanroom piping, and medical devices due to its biocompatibility and purity.

Mining Sludge Pipeline