3. Bin Sanitation Clean and sanitize aeration ducts, augers,
floors Remove weeds, trash, moldy crop Spray insecticides while bin
is empty Clean/inspect/replace aeration equipment and dryers
4. Loading Optimize handling & storage operations Operate
augers at capacity, slow speed Use a spreader to fill bin Core the
fines from center of grain Record grain moistures going into
storage Screen for my cotoxins
5. Aeration Goals To cool dried grain uniformly to 30-35oF.
Move cooling front completely through and out of grain mass Avoid
condensation on inside walls/roof Maintain low grain temps as long
as possible
6. Aeration Aeration rates depend upon 4 factors. Bin type Air
distribution system Desired grain moisture content Management
practices
7. Movement of Cooling Zones During Aeration Air flow either
positive pressure (flow up) or negative (flow down)
8. Aeration Air flow either positive pressure (flow up) or
negative (flow down) Ventilation required during fan operation Fan
operation times depend upon airflow rate
9. Static pressure
10. Static pressure - Static pressure is the force required to
overcome the resistance to air flow through grain and is usually
expressed in inches of water column. - It is also the measure used
to rate a fan's performance under load conditions such as drying,
cooling and aerating grain - Static pressure is measured with a
simple instrument known as a manometer (which is connected to the
air plenum of a grain bin (air space below the false floor).
11. Monitoring Check for insects while grain temperature is
above 50 F. If found then fumigate. Fumigation will not be
effective below 50 F. Temperatures below 50 F will control insects
Inspect grain surface at least every other week Walk on grain, poke
into it, check for hot spots or insect infestations.
12. Bridged grain
13. 3D Level Scanner
http://www.gulfatlanticequipment.com/manufacturer-binmaster.php
14. Drying Methods Equilibrium Natural air and fans Relative
vapor pressure Charts Drying front moves through grain
15. Drying Methods .Non-equilibrium -Heated air in a bin or
column dryer
16. Drying Calculations to get the amount of grain stored You
can calculate the size of the job You can relate it all to the
speed of harvest for bin management
17. Bin Safety Enter a bin only if you know its history and if
you are not alone If grain has not been removed you should see a
cone in the middle of the bin. If grain has been removed you should
see a flat area or inverted cone, and a shiny surface on the side
of the bin. If you do not see these signs, surface may be crusted
and unsafe to enter.
18. Bin Safety Shut off and lock out power when entering Do not
work alone in bins Do not enter while loading/unloading
19. Grain Bin Entry Procedures Saves Lives
http://www.youtube.com/watch?v=FhIq87HPkT0