| 摘要 |
A conveying system particularly for solid municipal waste to be subjected to air classification as provided which comprises a ram tube conveyor. The ram tube conveyor includes a cylindrical casing connected at its forward end to an outwardly tapered tube and a feeder hopper at the forward end of the casing. Hydraulically activated ram supported upon wheels closes the bottom of the feeder hopper during its operation and pushes material from the feeder hopper into the tapered tube. The tapered tube is proportioned to compress the materials and the ram serves to self clean the ram tube conveyor.
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