Radiant Heating Elements for Metallurgical Scrap Preheating

The patent replaces traditional mechanical convection-based heating systems with a radiant heating system that uses radiation panels to transfer heat directly to the scrap material. This substitution of heating mechanism eliminates temperature stratification by providing uniform radiant heat distribution across all scrap layers simultaneously, resolving the contradiction between temperature uniformity and heating efficiency.

The patent implements heating panels at multiple locations (top, bottom, and side walls) to provide localized heating zones throughout the channel. This distributed local heating approach ensures that both upper and lower scrap layers receive direct radiant heat, eliminating the temperature stratification problem while maintaining overall heating efficiency.

The patent replaces flame-based burner systems with electric or radiant heating panels that emit thermal radiation without combustion. This substitution eliminates spot-like flames entirely, providing uniform heat distribution across the scrap material surface and preventing localized overheating that causes melt-phase formation, while maintaining effective heating capability.

The patent converts the harmful effect of direct flame contact by replacing it with controlled radiant heating panels that emit thermal energy without combustion byproducts or localized extreme temperatures. This transformation eliminates the harmful melt-phase formation while preserving the beneficial heating effect.