Batch - Drum Plant
Batch plants do a fine job of making "specialty" mixes in small quantities.
However, they waste a lot of time screening your materials, dividing it into
specific sizes then blending it back together and mixing it all in a
pugmill. This wasted time cost you production.
Drum plants make mixes "continuously", so they do not waste time in
unnecessary activities like screening and pugging the mixes. The downside to
a drum plant is that it is difficult to make small quantities without
significant wasted materials. It is also difficult to switch a drum plant
between small quantities of different mixes.
A "Dratch" plant is a combination Drum/Batch plant. We set your plant up so
that it can run as either a batch or a drum plant. Under certain conditions
it can run simultaneously as both. The following pictures are of an east
coast plant we converted earlier in the year. When we arrived, this batch
plant was running at 60 tons per hour with no RAP. When we finished, I
personally ran the plant at 220 tons per hour with virgin and 170 tons per
hour with 25% RAP.