Grain Storage
Bins - Expandable Crossover System
Near Nanton, Alberta, Bar None Ranches (South) built a mammoth 430,000-bushel
grain handling system in 1997, served by two 10-inch Hutchinson
grain pumps. The farm includes 7,000 acres of cropland producing
wheat and barley.
The Bar None system has ten 40,000-bushel flat
bottom bins and three 10,000-bushel hopper bins. Two 30-hp
electric motors power each grain pump. The 10-inch loops are about
700 feet long and 54 feet high.
Largest Farm Grain Bins
These are the largest farm grain bins that can be placed on 36'concrete
pads. The hopper bins run in conjunction with a five million BTU
grain dryer,
fuelled by natural gas. It can dry up to 1,200 bushels an hour.
Tough grain can move from one or two "wet" bins, into
the dryer. Dried grain cools in the third hopper bin, and then is
fed into the grain loop system for final storage to the big bins.
Two trucks can dump into input hoppers at the same time. It takes
about half an hour to empty or fill a B-train with barley. While
not common, the system will occasionally plug. Draining a 54-foot
vertical column takes about 10 minutes. Grain drains onto the concrete
pad and can be swept back into the hopper. Then simply re-start
the system.
About 80% of the system is filled with the ranches own barley and
wheat. They also produce some winter wheat and fall rye. When the
system has extra capacity, it's rented to a neighbour for storage.
Grain Bin Monitoring
OP1
heat-sensor systems are standard in the grain loop systems
at Bar None. The big units each have three cables with eight heat
sensors at different elevations. They can be monitored from a computer
inside the control house. The grain pump easily moves product around,
if a warm spot develops. All 40,000-bushel bins are equipped with
aeration.
Climbing is usually unnecessary. A few inches below the top of the
top ring, a simple electric sensor activates when it contacts grain.
It sets off a buzzer and a light, warning the operator that the
fill level has reached the last 500 bushels of available space.
The operator then has a few minutes to select another bin in the
system.
Safe and Secure Grain Systems
The system was built to market barley and grain from a central
point. Trucks can get into here year-round because it's built on
a good site that's central to all the cropland. Loads can also be
blended, light barley with heavy barley, to make grade.
This consolidated system also makes the farm attractive to haul
from and companies compete for their business because the grain
handling system works so well.
Safety is a consideration in system design. Sweeps in the big bins
reduce the physical exertion and save time. Switching augers from
silo to silo and climbing stairs are distant memories. Protective
grates and guardrails are everywhere that people need protection.
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