When there is too much sulfate in the raw meal then part of the kiln gasses are diverted to an Electro static precipitator. The Kiln system sizes are as follows, stages 1-6: Cyclone Diameter/Downpipe Size: 5.4/0.560, 5.4/0.710, 5.7/0.710, 5.7/0.710, 5.7/0.800, 5.7/0.800. Kiln Riser Pipe dia.-3.970, Kiln dia 4.75, Bypass, Electrostatic Precipitator, , Fan, En mass conveyor, Air sluices, Bin with gate, fan, Chimney etc. This is a Foundation & Erection Drawing. The concrete building is not shown for clarity.