(edited)General
Wondering what considerations to make when sizing a wet hopper bottom bin for corn drying.
Fans for aeration a must or no?
Can dry about 700 bph split between batch topdry and continuous flow GSI. Both would pull from wet tank.
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We run a double wet bin setup mostly because we had the one from our previous dryer. We have a 10k bushel hopper bin and a 22k bushel aeration bin. That allows us to use the hopper bin to fill the bottom cone on the wet bin with dry corn. If your only using a flat bottom bin for your wet bin and you can't put a dry cone in the bottom make sure you fully empty it every few days I've heard to man...
I recommend a holding bin of 12 hours drying time. If you work real late at night and start very early in the morning, you could get by on a little less than 12 hours. You'll never regret having one that's bigger. Air is a large benefit to wet grain flow in a wet bin.
I have a 500 bushel batch dryer. 8 row combine and a 3500 bushel wet bin....... definitely not big enough.
OH is right as its not a straight answer. I have fans on my wet tanks so i can store 25% corn 30hrs outside air temp dependant and for moisture removal. Make sure you oversize fan and have vents to exhaust accordingly. I want my dryer to run 24/7 in 25% plus corn. I dont harvest on sunday. If I was 700bph from 8pm sat till 9am monday I would want bin and truck capacity of 25000bu. If its 8pm till...
Midwest plan service book MWPS-13 is a great resource. My copy from 1987 has served me well! It goes through all of the fundemental calculations for sizing.
I will bet that the third edition fro 2017 is even better with modern sizing.
How many bushel per hour can your combine shell? How many combines do you have? How late at night do you wanna work? How early do you wanna get started the next day? There’s so many more things you gotta know to determine that