Mining Negative Pressure Ventilation Duct φ1000-10

📌Mining Negative Pressure Ventilation Duct φ1000-10 Product Overview

The φ1000-10 Mining Negative Pressure Ventilation Duct (fabric size 4×4 meters) is a reinforced ventilation duct designed to meet the demands of large airflow and high-pressure negative pressure ventilation systems in coal mines. The duct is fabricated from a single 4m × 4m piece of coated fabric, minimizing seams and enhancing the overall structural strength and negative pressure resistance of the pipe. It is especially suitable for critical sections such as the main fan outlet, long-distance ventilation routes, and return air systems.

Manufactured with mining-grade high-density coated knife-scraped fabric, this duct features flame-retardant, anti-static, aging-resistant, and explosion-proof properties, fully complying with coal mine safety standards.


✅Mining Negative Pressure Ventilation Duct φ1000-10 Key Benefits

  • Large φ1000 diameter ensures high single-section airflow capacity and strong extraction ability

  • Single-piece 4×4m fabric forming reduces seams, ensuring excellent sealing and no air leakage

  • Superior negative pressure resistance ideal for high-extraction fan systems

  • High abrasion resistance with an easy-to-clean surface, adapted to harsh underground environments

  • Stable structure prevents collapse, improving ventilation efficiency and service life


📐 Mining Negative Pressure Ventilation Duct φ1000-10 Technical Specifications

Parameter Description
Nominal Diameter φ1000 mm
Single Section Length 10 meters
Fabric Specification 4 m × 4 m
Material Composition Double-sided flame-retardant anti-static coated knife-scraped fabric + polyester filament base cloth
Negative Pressure Resistance ≥ 4000 Pa (reinforced version available)
Flame Retardant Rating Class B1 (GB 8624-2012)
Surface Resistivity ≤ 3×10⁸ Ω (GB/T 2951)
Suitable Environment High gas coal mines, main extraction airways, return air systems
Operating Temperature Range -25°C to +80°C

📜Mining Negative Pressure Ventilation Duct φ1000-10 Applicable Standards

  • MT/T 391-2012 — Technical Conditions for Mining Ventilation Ducts

  • GB/T 20043-2015 — Coated Fabric Flexible Ventilation Hose for Mining

  • GB 3836 Series — Technical Specifications for Explosion-proof Equipment in Coal Mines

Mining Negative Pressure Ventilation Duct φ1000-10Mining Negative Pressure Ventilation Duct φ1000-10

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