Steel ladle baking device

Abstract

The invention discloses a steel ladle baking device which comprises a fuel gas supply device, a heating and boosting device and an air outlet pipeline, wherein the inlet of the heating and boosting device is connected with the fuel gas supply device, the middle part of the air outlet pipeline is provided with a fuel port, the fuel port is connected with the outlet of the heating and boosting device by virtue of a fuel gas pipeline, the inlet of the air outlet pipeline is connected with a blast blower, and the outlet of the air outlet pipeline is connected with a nozzle. Compared with the prior art, the steel ladle baking device disclosed by the invention has the advantages that: the air outlet pipeline connected with the blast blower is arranged, fuel gas passes through the heating and boosting device and then enters into the air outlet pipeline by virtue of the fuel gas pipeline and flows in the air outlet pipeline, in the flowing process, and the fuel gas can be fully mixed with the air in the air outlet pipeline, thus a combustion flame after the fuel gas is sprayed out from the nozzle is longer, thermal energy can reach the bottom of a steel ladle tank, the temperature of the steel ladle tank is ensured to be uniform, and the baking efficiency of the steel ladle is improved.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a ladle baking device. Background technique [0002] The ladle is a container for molten steel and an integral part of smelting equipment. The molten steel will lose a lot of energy after being loaded into the ladle and during pouring, because after the molten steel is tapped, it needs to stay in the ladle for 5 to 10 minutes before pouring, so there is a large amount of energy loss in the molten steel. The average cooling rate of molten steel is: for ladles larger than 250 tons, the cooling rate of molten steel is 0.5-1.5°C / min; for ladles of 100-200 tons, the cooling rate of molten steel is 1-2°C / min; The cooling rate of the ladle and molten steel is 2-2.5°C / min. [0003] The energy loss of molten steel is roughly divided into three parts. The first part is the radiation heat loss on the upper surface of the molten steel. The second part is the comprehensive heat dissipati...

AI Technical Summary

Problems solved by technology

However, because the diffusion speed of air cannot keep up with the requirements of fuel combustion, the air required for combustion is seriously insufficient, so that the combustion flame of fuel is relatively short

Generally, the volume of the ladle is large, the tank body is long and thin, and the heat energy cannot fully reach the bottom of the tank due to the short flame, causing the upper part of the ladle to be hot and the lower part to be cold, and the temperature difference between the upper and lower parts of the ladle is large

Therefore, a large amount of heat energy is lost from the mouth of the ladle, the baking efficiency is low, and the effect of ladle baking is not ideal

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