| 摘要 |
The invention is directed to a vertical feed mixer including a hopper for holding a composition to be mixed and having a hopper bottom, a vertically oriented mixing member positioned in the hopper and having a lower edge that is spaced from the hopper bottom, and a scraper movably connected to the mixing member and configured to engage the composition during operation of the mixing member and to be urged downwardly by the composition to the hopper bottom.
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