Shaft Mine Refuge – MineSAFE Narrow Design

The MineSAFE Narrow Design Refuge Chamber features a slimmer shell, designed specifically to accommodate tight hard rock mining confines such as a shaft mine, whilst still providing all of the critical features required to sustain life during an underground mine emergency.

The Narrow Design (ND) provides ample internal space for a range of occupancies – from 8 to 26 people – and it’s portable design makes the refuge chamber easy to manoeuvre and position around the mine site.

Hard Rock Refuge – Virtual Tour

Shaft Mine Refuge – Front View

The ‘face’ of the MineSAFE Narrow Design is designed primarily for easy identification and quick access during an emergency. The strobe lighting, warning siren and reflective signage alert passers-by to the chamber’s location, whilst the rotating door handles provide simple, straight forward access to the safety of the interior.

Shaft Mine Refuge – Interior View

Inside a MineSAFE Narrow Design Refuge Chamber, a number of vital life-support systems combine to create a safe, ongoing environment for occupants. Systems include; primary and secondary air (oxygen) supplies, air conditioning systems, positive pressure systems, electrical systems, gas detection and a chemical scrubbing system.

The MineSAFE Narrow Design uses active chemicals and MineARC’s ELV (extra-low-voltage) Scrubbing System to ‘scrub’ the build up of harmful CO2 (carbon dioxide) and CO (carbon monoxide) from the air inside the refuge chamber.

Shaft Mine Refuge – Rear View

A secure cabinet at the rear of the MineSAFE Narrow Design houses the refuge chamber’s UPS battery back up (Uninterruptible Power Supply). The UPS is a fail-safe system that can power the refuge chamber’s internal life support systems for a minimum of 36hrs, should mine power become cut-off.

Also at the rear of the chamber is the Compressed Air Management System (CAMS), which allows regulated compressed air into the refuge chamber when the pressure inside drops below 200Pa. This process optimises mine air usage and guarantees against over-pressurisation of the refuge chamber.

CAMS’ gas toxicity monitor automatically diverts compressed air if oxygen levels in the airline fall below a set level (18% oxygen in free air), signifying air contamination. Additionally, the incorporated flood protection valve automatically shuts down compressed air to avoid catastrophic and costly chamber damage in the event of water ingress.

Comparison Table

Name Capacity * Advanced Digital Control System ** iVAN *** Aura-FX Gas monitoring Modular construction Powerless Portable System **** Air-conditioning 36hrs Battery Backup 5psi Blast Rating *****
8-30
4-8
8-30
8-26
12-32
30-500
  • * Capacity Every refuge chamber is built with a certain rated occupancy in mind. The life support systems are designed to safely house this number of people for the designated duration.
  • ** Advanced Digital Control System All refuge chambers with a Series IV Scrubbing System feature MineARC's unique Advanced Digital Control System.
  • *** iVAN iVAN is an on-board navigation assistant that guides occupants through operational procedures.
  • **** Powerless Portable System MineARC's Powerless Portable System means it can sit stand-alone for extended periods without requiring connection to mains (mine) power
  • ***** 5psi Blast Rating MineARC offers blast rating upgrades to all refuge chambers.

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