Industrial electric heating furnaces inventions 08/08

20080198894 - Method for regulating the melting process in an electric-arc furnace: In a method for regulating the melting process in an electric-arc furnace (1) which contains a furnace charge (4) containing the following temporally successive principal phases: melt, slag, solid, the proportion and temperature of at least the melt phase are calculated by a model (3). The model (3) embodied as... Agent: Baker Botts L.L.P. Patent Department

20080192795 - Electric insulation for the lid of an electric arc furnace: The invention is an electric insulation system for a steel-structured lid of an electric arc furnace, where the electrode lead-throughs are provided with electric insulation for preventing breakdowns, and the lid is sealed from the furnace vessel by means of a sand seal. The lid is divided by steel-structured panels... Agent: Smith-hill And Bedell, P.c.

20080192796 - Method and device for operating an electric-arc furnace: A method for operating an electric-arc furnace with at least one electrode has one tapping method step. At the beginning of the tapping step, the energy supply to the at least one electrode (2) of the electric-arc furnace (1) is not stopped and the energy is still supplied to the... Agent: Baker Botts L.l.p. Patent Department