Essential Guide to Mining Pipes: Types, Materials & Critical Applications in Underground Operations

31 Jul.,2025

Mining pipes are vital for safe and efficient underground operations, from water supply to gas extraction. This guide explores 5 key pipe types—including ventilation, drainage, and shotcrete pipes—their materials (PVC, HDPE, fiberglass, steel), and how they withstand harsh mining conditions. HENGCAI PIPE offers ISO/ASTM-certified solutions for global mining projects.

 

Mining Pipes: Applications and Common Materials

Mining pipes are specialized pipelines designed for coal mines and underground mining operations. They must withstand harsh conditionsincluding high pressure, corrosion, abrasion, and explosive gaseswhile serving critical functions like water supply, drainage, ventilation, and gas extraction.

 

Below is a breakdown of their key applications and materials:

 

1. Water Supply/Drainage Pipes (Ks)

Features: High pressure resistance, corrosion resistance, and leak-proof sealing.

Materials: Fiberglass-reinforced pipes, plastic-coated steel pipes, PVC/PE pipes, composite pipes.

Applications:

 

Water supply: Delivers water for ore cooling, equipment cleaning, and minersdaily use.

Underground drainage: Removes accumulated water to maintain dry working conditions.

Surface drainage: Prevents flooding in mining areas.

2. Positive Pressure Ventilation Pipes (KFz)

Features: Pressure-resistant, airtight, and corrosion-resistant for clean airflow delivery.

Materials: Steel pipes, plastic-coated steel pipes, PVC ducts.

Applications:

 

Ventilation: Supplies fresh air to underground worksites.

Pressure maintenance: Blocks hazardous gases/dust from entering work zones.

Emergency rescue: Provides breathable air during accidents.

3. Negative Pressure Ventilation Pipes (KFF)

Features: Resists suction pressure, corrosion, and abrasion for gas/waste extraction.

Materials: Plastic-coated steel pipes, fiberglass pipes, PVC ducts, temporary vent tubes.

Applications:

 

Gas extraction: Removes methane (CH) to prevent explosions.

Dust removal: Improves air quality by extracting particulate matter.

Heat discharge: Reduces underground temperatures in deep mines.

4. Shotcrete Pipes (KL)

Features: High wear/abrasion resistance to transport concrete mixtures.

Materials: Steel pipes, rubber hoses, PE pipes, composite pipes.

Applications:

 

Tunnel support: Reinforces walls with sprayed concrete.

Rock stabilization: Injects slurry to strengthen fractured rock layers.

Waterproofing: Seals leaks in underground structures.

5. Gas Drainage Pipes (Kw)

Features: Explosion-proof, airtight, and corrosion-resistant for methane management.

Materials: Plastic-coated steel pipes, stainless steel pipes, PE pipes.

Applications:

 

Coalbed methane extraction: Reduces gas concentration in mines.

Gas recycling: Captures methane for energy reuse.

Emergency venting: Rapidly discharges gas during critical incidents.

Key Takeaway

Selecting mining pipes requires strict compliance with safety standards. The right materialtailored to pressure, corrosion, and operational needsis vital for safety and efficiency in mining.

 

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