I always thought about putting a air blast at the bottom separator grate. How did you do it, did you add a fan, any pics?
The blast I think needs to be on top side of cage blowing down in front and back on sep. end and on top blowing down the back side on thresher side. If anyone has ever seen or heard of the bi-axial rotor, they only had a four ft. long rotor that the cage, which was perforated 360 degrees would turned in the same direction as the cylinder. By doing that the cage stayed clean and grain wasn't having to fight against each other trying to escape the cage. I was having to clean the top of the cage above the concave every morning from lot's of green steam beans. When I started with a clean cage the rotor loss monitor showed very little loss. Five minutes later it would go up some, not much but still just enough to loose on av. 35 beans out the discharge in a 2 ft. wide, 1ft. long area. With the air blast it dropped to abought 8 on av. And that was just on the thresher side. Even with a perfectly clean cage the top half is just fighting against each other trying to get out, if it plugs then you have way more loss. That's why axial machines only separate on the bottom half. How I did it? Simple, with a leaf blower hooked to the air bar that i built, just to see if it would work, now to figure out the best way to put air to it, lots of idea's but nothing 100% just yet. HELP!!!!