A ladle heating device for efficient preheating of scrap

Abstract

The utility model provides a kind of high-efficiency preheating of scrap steel ladle heating device, the device includes top open ladle, ladle cover is covered on the ladle opening, heating burner is set on the ladle cover.The device further includes the retaining wall with closed shape in cross section.The top of the retaining wall is connected with the ladle cover, and the bottom of the retaining wall is close to the scrap steel material surface in the ladle.The internal area enclosed by the retaining wall constitutes the combustion zone of heating burner, and the area between the retaining wall and the side wall of the ladle forms the flue gas discharge channel.The heating burner is arranged on the ladle cover at the corresponding position of the combustion zone.A flue gas outlet is further arranged on the ladle cover at the corresponding position of the flue gas discharge channel.The utility model realizes the preheating of scrap steel by the way of high-temperature flue gas penetrating scrap steel, so that the high-temperature flue gas and scrap steel carry out convection heat transfer, thereby greatly improving the uniformity of preheating temperature and overall preheating temperature of scrap steel, and realizing the high-efficiency preheating of scrap steel.

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