CPC F28C 1/16 (2013.01) | 18 Claims |
1. An apparatus comprising:
a blade array comprising a plurality of blades that are vertically aligned and a plurality of spacers, each blade of the plurality of blades having an undulating cross-sectional shape and being spaced apart from an adjacent blade by a spacer, each spacer of the plurality of spacers having first and second legs connected by a support strip, the support strip having a bolt aperture formed therein;
each leg having a first upper edge, a second upper edge, a first lower edge, and a second lower edge, wherein at least one notch is defined in at least one of the first and second upper edges and first and second lower edges, wherein the at least one notch defines an opening that is adapted to allow liquid to pass through each spacer of the plurality of spacers;
each spacer of the plurality of spacers being located in one of a plurality of spacer arrays, each of the plurality of spacers in any one of the plurality of spacer arrays being vertically aligned;
wherein each of the plurality of spacer arrays further includes a bolt that extends through all of the plurality of spacers in that one of the plurality of spacer arrays.
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