Surface Mining
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Strata’s Metal/Non-Metal Refuge Chamber Provides a Safe Haven for Trapped Miners

Published: September 5, 2023 |

[Click image to enlarge]

[Click image to enlarge]

[Click image to enlarge]

Strata Emergency Refuge Chambers (ERC) are complete safety systems designed to provide immediate refuge and breathable air in the event that air quality in the working environment becomes compromised. They are intended to be an alternative option when escape is not possible.

The Metal/Non-Metal Emergency Refuge Chamber attaches to the mine’s main air lines and power source for an indefinite supply of fresh air and power. The power source operates the lights, optional air conditioning system and the carbon dioxide scrubber. A specialized filtration system performs a complete cleansing of the air as it enters the chamber.

ERC’s are also equipped with a standard 48 hours of battery back-up and a back-up air supply. These systems are upgradeable to 96 hrs. The back-up air supply is provided by oxygen cylinders and an active soda lime CO2 scrubber. This innovative Scrubber is powered by mine power or the chambers battery backup. An optional air conditioning unit is used to maintain safe temperature and humidity levels inside the chamber. The Strata ERC is delivered with water, food and a first aid kit neatly stowed on-board.

Technical advancements of the Strata Safety Refuge Station for Metal/Non-Metal mines include:


• Robust Construction-Engineered and constructed to customer specifications

• Quality Air Supply System- High quality air filtration system purifies mine air. Backup air supply provides 48 hours of breathable air and is scalable up to 96 hours

• CO2 Scrubber System- Active CO2 Scrubber removes carbon dioxide using soda lime chemicals

• Air Conditioning- Optional high quality air conditioner

• Sizing-Strata Emergency Refuge Chambers are available in standard & custom sizes to meet individual customer needs. This includes custom length and heights of the structure

• Air-Tight Design-Air-tight chamber design provides immediate supply of breathable air upon entry

• Air-Lock Entry-Optional air-lock entry, sectioned off with heavy plastic curtain, minimizes contaminants entering the main chamber

• Lighting-Internal 24 volt LED lighting system

• Drinking Water & Food-Includes food & drinking water in storage compartments

• Moves Readily-Built-in fork lift guides, lifting facilities and skid base assist with moving & relocating the refuge chamber. Wheel and hitch package available

• Lavatory-Chemical toilet in a private compartment

• Seating & Storage Areas-Cushioned seating for all occupants & storage areas for additional supplies/equipment

• Fire Extinguisher- 20lb (9kg) fire extinguisher

• Escape Hatch-Built-in emergency escape hatch

• External Location Lights-External location lights & warning siren

Strata Emergency Refuge Chamber Wheel and Hitch Package:



In order to assist moving the chambers into and around the mines and in restrictive areas, Strata has engineered a robust wheel and hitch package to be added during construction of the unit or retrofitted later. These additions will significantly reduce wear and tear during movement.

Wheels are smooth, solid rubber and the standard ground clearance is 5 ½”. Custom set up to increase or decrease ground clearance is available.

The chamber hitch is a removable drawbar supplied at varying lengths.

Customization:

The dimensions of the Strata ERCs can be customized according to specific customer requirements. A few examples include:
• Tunneling (reduced width)
• Low Profile mines (reduced height)
• Powerless (air-powered and MSHA-approved components)
• Compact and mobile (small, lightweight, and equipped with wheels)


To view all of Strata’s Chamber product offerings, CLICK HERE

Click on PDF file in upper right corner for additional details.


For more information:
Phone toll-free (U.S. only): 1-800-691-6601
Phone international: +1-770-321-2500
To send an e-mail request, CLICK HERE

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