he shell may be of metal (steel, alloy or non-ferrous),
plastic, wood or some combination, which may require
the addition of liners or inner layers of rubber, plastic or
brick. The mechanical problems of attaching inner nozzles,
supports and brick require considerable attention
indesign that is not an integral part of sizing the equipment.
Figures 14-2A–C show a typical large, steel
brick-membrane lined tower with corbeled brick support
locations. In these towers, temperature and/or corrosive
conditions usually dictate the composition of internal