Banana screen for coal washing plant
China [CN] The banana screen is a vibration grading with a box vibrator and a plurality of different inclined screen faces. The shape of the main box is similar to that of a banana. It is mainly used for the classification of large and medium-sized materials with high fine content, and can also be used for dehydration, de-intermediation, and de-sludge operations. (The fine particles refer to particles with a particle size of less than half the size of the mesh.)
The banana screen is designed by injecting a banana-shaped multi-stage working surface on the basis of a linear classifier. There is a larger slope screen at the feed end, followed by a stepwise decrease at a certain number of angles until the discharge opening, the overall screen surface is concave curved. The sloped screen at the feed end allows for more material to pass through the screen surface with higher screening speeds and thinner material delamination. Because the bulk material passes through the steep slope faster, this earlier stratification allows the fine particles to move closer to the screen surface and pass through the gap relatively unhindered, so the banana sieve has a very high screening efficiency and It is the most advanced and most popular screening machinery product, which is 1.5-2 times higher than traditional grading screen.
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