Strata AIRDOC Change-Over Station
The Strata AIRDOC Change-Over Station is a transitional station that
offers miners a non-toxic environment in which to rest, recover and exchange
SCSR units during evacuation of the mine. In an emergency, miners enter
the Change-Over Station, remove their SCSR and replace it with a new SCSR
from the rack. Upon exiting the unit, the used SCSRs are placed in a disposal
bin located next to the exit door.
The first level of safety is a filtration system that is connected to mine air. While mine air is available and turned to the 'ON' position, the duration of air supply is virtually unlimited.
In the event that mine air is not available, the Change-Over Station
has a breathing air system that provides fresh, breathable air using compressed
oxygen cylinders and a CO2 scrubbing system. Oxygen from the cylinders
is directed through the CO2 Scrubber System and released into the center
of the change over area of the unit. When operating on 100% stand alone
mode, the Change-Over Station provides 9 hours of breathable air.
For metal/non-metal mines, the CO2 scrubber is battery operated. For coal mines the scrubber is powered by a flow of compressed air from cylinders. Food, water, communication devices, extra SCSRs and first aid kits can be stored in the unit.
Airlock Entry & Exit
Plastic Airlock Clear Strip Curtains are positioned at both the entrance and exit doors. These Airlock Clear Strips must remain in the closed position to minimize the introduction of air contaminants and ensure the center safe-area is free of toxic gas. The Airlocks are positioned in a way that reduces the risk of hazardous gases entering the main center section. In addition, always keep at least one door closed to stop a "draft effect" from occurring which may cause toxic gas to enter the unit. The station requires very little maintenance which is noted on the maintenance schedule.
Technical advancements of the Strata Change-Over
Station include:
- Fresh, Breathable Air Supply System-Provides up to 9 hour air supply from medical grade oxygen and compressed air cylinders (air only for coal mines).
- CO2 Scrubber System-Patent pending Active
CO2 Scrubber powered by compressed air for coal mines, or batteries
for metal/non-metal mines, removes carbon dioxide using soda lime chemicals.
- Holds 50 Self-Rescuers-Storage rack holds 50 Self-Rescuers. Self-Rescuers remain in the "stand-by" mode until required.
- Visible Inspection-The SCSRs are positioned so that the Inspection Viewing Site Glass is visible while on the rack. This enables a quick check ensuring that the Self-Rescuer is in a serviceable and safe condition.
Download the brochure on the Change-Over Station.
Contact us for more information on the Strata AIRDOC Change-Over Station or to discuss your safety requirements with a sales engineer.
Strata Safety Products offer two other options for emergency refuge. Learn more about the Emergency Coal and Metal/Non-Metal Refuge Stations and the Portable Fresh Air Bay.