Phil May wrote:I am thinking about building a silo to hold a tt load. I was going to buy a hopper bottom feed bin. Problem #1 they are rated 40lb/cubic ft and the coal i have been getting is 50lb/cu ft. This coal stuff is like cocain. I have access to a couple old feul tanks gears are grinding now. What ever I come up with is going to be outside. I plan to get the coal in summer so the water can drain out all summer so it wont freeze up.
So you are having issues with getting an accurate loose density value?
Interested in knowing dimensions you think the bin would need to be...
taking 45 lb/ft^3 .... 44000lbs=about 1000 cuft
if 10' high ... 1000 cuft/3.14*10ft = r*r=1000cuft/31.4ft=31.8ft^2
r= about 5.6 ft .............
So a 10ft high by 11 ft wide silo would work....likely need slightly higher to account for an exit strategy..angled bottom I guess that focuses the force out near the exit bin
a pretty big footprint..but not outrageous