Ladle preheating kiln

Abstract

The invention provides a ladle preheating kiln which comprises a kiln base. At least one direct-heating kiln opening and at least one waste heat kiln opening are formed in the top face of the kiln base. The direct-heating kiln openings and the waste heat kiln openings are sequentially communicated through a smoke channel respectively. The direct-heating kiln openings are located in one side of the gas inlet end of the smoke channel. The waste heat kiln openings are located in one side of the gas outlet end of the smoke channel. The direct-heating kiln openings are communicated with a combustion engine through heat supply pipes. The combustion engine is communicated with a gas inlet pipe. The waste heat kiln opening close to the gas outlet end of the smoke channel is communicated with a waste gas pipe which is provided with an induced draft fan. A stop valve is installed on each heat supply pipe. By means of the ladle preheating kiln, the gas consumed for baking ladles can be effectively reduced for iron and steel enterprises, and meanwhile the gas combustion heat utilization rate is greatly increased.

Description

technical field [0001] The invention relates to a ladle heating device, in particular to a ladle baking kiln. Background technique [0002] Ladle baking is a very important process in steel production. The baking process seriously affects the energy consumption of enterprises and the quality of products. The existing ladle baking process is to directly use the burner to bake the ladle one-to-one, the energy consumption of the baking process is high, and the gas consumption of each ladle during the baking process is about 1500Nm 3 / H, the cost burden of the enterprise is heavy. When the existing ladle baking equipment bakes the ladle, it is necessary to reserve a certain space at the lid of the ladle for exhaust gas, otherwise the new heat source cannot enter the ladle, and a large amount of heat rises with the exhaust gas during the process of exhaust gas. Exhaust, the heat utilization rate of the gas after combustion is low. Contents of the invention [0003] The purp...

AI Technical Summary

Problems solved by technology

The existing ladle baking process is to directly use the burner to bake the ladle one by one. The baking process consumes a lot of energy. The gas consumption of each ladle during the baking process is about 1500Nm 3 / H, the cost burden of the enterprise is heavy

When the existing ladle baking equipment bakes the ladle, it is necessary to reserve a certain space at the lid of the ladle for exhaust gas, otherwise the new heat source cannot enter the ladle, and a large amount of heat rises with the exhaust gas during the process of exhaust gas. Exhaust, the heat utilization rate of gas combustion is low

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