.~ Combustion feed air cools exiting work by contact {2}
79
.~.~ Contact at discharge end section of shaft furnace
DEFINITION
Classification: 432/79
(under subclass 78) Apparatus in which the contact structure is a section of a furnace traversed by work fed at the top and moved by gravity to a discharge at the bottom, said section receiving work from a section of the furnace heating work by combustion of fuel therein and being traversed by air passing through the work in the section and entering the combustion zone.
