| 摘要 |
<p>HORIZONTAL RIBBON EXTRUSION FROM A HOPPER AND THREE COMPRESSION ROLLERS Disclosed is an apparatus for feeding raw material as a ribbon in a horizontal direction, preferably into a kiln for firing refractory raw material, including a hopper for the raw material, the hopper having an opening in its bottom portion with a pair of spaced transversely opposed compression rollers, the inner peripheries of which are disposed on opposite sides of the opening for engaging on opposite sides and compressing therebetween and progressively feeding the raw material as a stream downwardly. A third compression roller is below the one of the opposed compression rollers, and guide means is provided for guiding a surface of the stream from the other of the opposed compression rollers to the upper periphery of the third compression roller. The opposed compression rollers compact and feed the raw material from the hopper into a stream fed in a downward direction, and the third compression roller and the one of the opposed compression rollers cooperate to compact and feed the stream as a ribbon of indeterminate length in a horizontal direction.</p> |
