| 摘要 |
A high-rise silo in which silage is fed radially by means of revolving feed members to a central vertical clearing shaft of the silo. The silage is withdrawn from the shaft at the bottom. The shaft itself is assembled from separate cylindrical pipe lengths each of which has an internal encircling groove with a sealing ring at the upper end, into which engages an internal co-axial annular flange situated at the lower end of the superjacent cylindrical pipe length, in sealing manner.
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