MD Dry Sand Cooler will cool grain-size sand after primary metal removal and screening. The non-linear path of sand and multi-stage weir layout ensures efficient heat transfer from sand to circulated water via heavy-duty finned tubes. A plenum-plate fluidization method maintains a constantly flowing bed of sand, thus providing ample retention time for cooling as well as protecting the finned tubes from the abrasive characteristics of sand. MD Coolers utilize evaporative cooled process water to cool the sand from 204°C (400°F) to within 11°C (20°F) of local wet bulb conditions.