Why does your bucket elevator with low efficiency
Material were failed to filled hopper: There are four factors affecting the degree of material filled, Is the limit of material surface level, respectively head rotation angle and shape of the hopper, material accumulation. The more limit higher material surface, the better filled with the greater; Slower wheel speed, fill the hopper with the greater; Material accumulation angle increases, it means shaman worse, hopper filled with higher degrees; It’s easier to filled if the hopper mouth is smaller, so the shape of hopper should be inverted triangle, and the lighter hopper is easier to filled than the deeper one. In a word, to filled the hopper, needs the slower wheel rotation speed, the higher hopper mouth, and the shape of hopper should be more reasonable.
Spreading material from lifting: opening the head cover of bucket elevator, and observe the full degree of hopper at the bottom of the fill level in curve hopper, it means the lift sub if the top is less than the bottom. There are three reasons cause of spreading material: the first is the initial tension of the chain is insufficient, hopper reverse due to its own weight. Second is its own vibration, such as the vibration of rotational inertia of the wheel, the chain is not flexible. Vibration will reduce the stacking height of granule material. The solution is as follows: Adjust the initial tension of the chain, bucket elevator rotation to achieve balance; Improved chain joints, balance as far as possible. Increased isolation measures; Reducing mechanical vibration.
The bucket elevator enhance reflux: the material cannot be thrown into the discharge tube totally but return the frame. Reflux is the main reason cause of low efficiency of bucket elevator. You can check the bucket elevator machine drum, if it has a noise just like raining, judge the extent of reflux according to the noise. It’s more useful for iron shell bucket elevator. Analysis the reason of reflux: open the head cover and observe the total material trajectory carefully. Where the material thrown high and far, crossing over imports of the feed tube, which means head shell size is too small. Solution is increase the size of head cover.
