| 摘要 |
<p>This specification discloses an improved worm mixer for a container, which reduces the deposit of material on the inside wall of the container. This is attained according to the invention by the arrangement that at least part of the outer marginal portion of the worm is provided with one or more wires or bands which are secured in the vicinity of the superficies of the worm. These wires or bands cut loose doughy or pasty material clinging to the wall, whereby a smaller propulsion of the material in an upward direction along the wall is attained. Furthermore the cutting edges reduce the dimensions of the deposit on the container wall to a minimum, while the wall effect on the material itself is reduced by the regular severance of the material on the wall from that in the other part of the container, which particularly may be of importance when operating with pasty substances. The cutting edges also have likewise a clod breaking, clod cutting effect, respectively on the material which is elsewhere in the container.</p> |
