ANNULAR CONVEYER-TYPE ELECTRIC FURNACE Russian patent published in 1999 - IPC

FIELD: heating equipment; heating and heat treatment of miscellaneous parts and workpieces. SUBSTANCE: furnace has welded metal housing, annular heating chamber with resistance heaters on side walls, roof, hearth, separate part charging and discharging windows with flaps, and drive mechanism; annular heating chamber is built integral with hearth in whose center there is annular slot for introducing drive rods of annular conveyer mounted under it to chamber; furnace roof is made in the form of removable multilayer composite screen additionally covered with light-weight backfill heat insulation. EFFECT: provision for effective and cost-saving heating of workpieces of different shapes, mechanization of work and reduction of labor consumption, improved labor conditions with respect to hygiene. 2 cl, 2 dwg