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Since 1902, American Mine Door Company
has manufactured custom mine
ventilation doors for track
and trackless mines around the
world.
Our superior engineered design
provides economical, safe,
efficient, and practical
ventilation control for all
types of mines. Each mine
door is custom engineered and
manufactured to meet your
specific ventilation plans. |
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Operation of the AMD Mine
Ventilation Door
Our door wings open in opposite
directions. This unique design
feature allows our mine doors to
withstand many inches of water
gauge pressure. The same air
pressure that assists the door
in opening also assists it in
closing. Consequently, air
pressure is equalized.
Ramp slope effects are cancelled
as one door wing operating
downhill aids the other wing
uphill. Due to the equal force
principal, our mine doors can be
installed in almost any slope
application.
To assure
maximum lifetime value, our mine
doors are reusable, and can be
easily moved from one location
to another. |
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Features of the AMD Mine
Ventilation
Door
- Each door is custom designed
to the customer's specific
needs.
- Door size ranges from 5'-0" -
23'-0" Wide to 5'-0" - 16'-0"
High.
- Custom PLC (programmable logic
control) solutions for specific
customer requirements.
- Electro-hydraulic, pneumatic
and manual actuation systems
available.
- We can manufacture doors that
withstand up to 800,000 inches per
pound torque of air pressure.
- Working together, multiple
fans and the door operation
itself contribute to the
ventilation control
of the mine.
- American Mine Door's
ventilation doors remain closed
if air currents are reversed.
- Allows traffic into neutral
airways, where a permanent
stopping is impossible to
construct.
- Ventilation mine doors can be
moved and installed in new
locations, if necessary,
avoiding expensive overcasts.
- Reduces icing conditions by
installing an American Mine Door
at the portal.
- Used in all types of
underground mines: coal,
uranium, salt, gypsum, clay,
gold, potash, sodium, titanium,
molybdenum.
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AMD Mine
Ventilation Door Specifications
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AMD
MINE DOOR
COMPONENTS - STRUCTURAL |
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Item |
Description |
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FRAME POSTS |
6" @ 15.3# CHANNEL |
Standard |
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FRAME - CAP AND SILL |
6" @ 15.3# CHANNEL |
Standard |
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DOOR WINGS |
6" @10.5# CHANNEL W/ 10 GA. SKIN |
Standard |
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HINGES PIN AND SOCKET |
ADJUSTABLE |
Standard |
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CONNECTING BARS |
1 1/2" PIPE W/ CLEVIS |
Standard |
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TRAFFIC WINDOW |
LEXAN - BOTH WINGS |
Standard |
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PAINT |
SAFETY YELLOW |
Standard |
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INSTALLATION |
DRAWINGS ALONG WITH TEXT DESCRIPTION |
Standard |
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PERIMETER SEALENT |
MSHA APPROVED RUBBER BRATTICING |
Standard |
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DOUBLE SKINNED WINGS |
10 GA.SHEET |
Optional |
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ESCAPE HATCH/ REGULATOR |
10 GA. SHEET |
Optional |
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AMD MINE DOOR
COMPONENTS -
ELECTRICAL
AND MECHANICAL |
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Item |
Description |
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AIR OPERATION |
CYLINDER/ RESERVOIR TANK |
Standard |
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AIR OPERATION |
CONTROL CABINET(VALVES/ FILTER, LUBRICATOR) |
Standard |
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AIR OPERATION |
ALL FITTINGS AND 50' HOSE |
Standard |
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ELECTRO-HYDRAULIC OPERATION |
CYLINDER AND CONTROLS
120 VAC |
Optional |
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PLC CONTROLS |
ALLEN BRADLEY OR CUSTOMER DESIGNATED |
Optional |
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ACTUATION DEVICES |
PULL SWITCHES |
Optional |
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ACTUATION DEVICES |
REMOTE CONTROL - INFRARED |
Optional |
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ACTUATION DEVICES |
MOTION SENSOR |
Optional |
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VISUAL/ AUDIO |
RED/ AMBER/ GREEN LIGHTS |
Optional |
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VISUAL/ AUDIO |
WARNING HORNS |
Optional |
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VISUAL/ AUDIO |
REFLECTIVE STRIPPING |
Optional |
Additional Features
Steel Frames and Steel
Panels
Our mine doors come equipped with steel
frames and steel panels, double-acting cushioned air cylinder, 17
gallon air storage tank, and control cabinet. Your
choice of manual or optional photo-electric operation.
Optional signal lights show position of door at all
times. Air compressor with air storage tank available
for those mines that do not have ready access to
compressed air.
Air Cylinder
Double-acting cushioned cylinder is
equipped with control
valves for adjusting the opening and closing
speed of the door wings. Optional rope pull contactor, slap
type contactor or photo-electric operation located
in-by, and out-by each door provide for a positive
opening and positive closing each time. Eliminates
waiting time by mine personnel and maintains constant
speed through haulage ways.
Control
Cabinet
Manual override on valve
allows for operation of door several times
in event of power failure. A shut-off cock,
check valve (to maintain pressure in the air
reservoir receiver should line pressure
fall), filter, lubricator and solenoid valve
are all mounted in a heavy sheet metal
enclosure.
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