Patent ID: 6157004
Filing Date: 2000-12-05
Classification: A61C,F27B

Abstract:
A heating or preheating furnace for lining cylinders made of refractory material comprising:a bed;a hearth portion supported by said bed;an upper dome-shaped portion arranged to rest on said hearth portion to delimit a heating/firing chamber therewith;first driving means suitable for producing relative motion between said dome-shaped portion and said hearth portion, where said relative motion varies between a closed position, in which said dome-shaped portion rests on said hearth portion, and an open position, in which said dome portion is raised above said hearth portion;heating means carried by said dome-shaped portion; anda program control unit,at least two work holding plates mounted for rotation on said hearth portion, and second driving means arranged to be controlled by said control unit and designed to cause each work holding plate to rotate about its own vertical axis.