| 摘要 |
A processing vessel for mixing a liquid containing solid pieces comprises a container having a top opening and a hemispherical bottom portion, a horizontal or inclined agitator drive shaft extending into the container and a substantially circular agitator mounted on the drive shaft for rotation therewith. The agitator comprises a pair of substantially annular semicircular blades, each formed with an internal segment-shaped web and carrying at its outer periphery a plurality of scrapers which are shaped to conform to the shape of the hemispherical bottom portion of the container and are attached to the blade so as to be capable of limited pivotal movement. First and second coaxial agitator drive shafts may be provided, each shaft carrying a respective part of a two-part agitator.
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