Method for judging end point time of copper smelting of converter

Abstract

The invention belongs to the technical field of copper smelting of a converter, and discloses a method for judging the end point time of copper smelting of the converter. The method for judging the end point time of copper smelting of the converter comprises the following concrete steps of S1, conducting sampling analysis in advance for copper matte put into the converter: putting the copper matteinto copper matte pack after the copper matte is discharged from the previous process, and meanwhile sampling the copper matte and sending to a laboratory for analyzing copper content, iron content and sulfur content; S2, calculating the target time and the adding amounting of a fusing agent of the first cycle; and S3, calculating the target time and the adding amounting of the fusing agent of the second cycle. The method can realize continuous detection and continuous calculation of blowing end point time judgment and provide reliable data for operators, thus improving the utilization rate of the converter and reducing unnecessary operation of converter shaking. The method saves a lot of blowing time, improves the utilization rate of the air flow into the converter, reduces the air discharge amount of air and achieves the purpose of saving energy at the same time, and ensures the continuous blowing production.

Description

technical field [0001] The invention relates to the technical field of converter copper smelting, in particular to a method for judging the end time of converter copper smelting. Background technique [0002] The converter copper smelting process mainly mixes the blown air with oxygen to oxidize the impurity iron in the matte in the converter into the slag. The operator judges by observing the thickness of the slag surface on the surface of the melt in the furnace, the degree of reaction, and the brightness of the melt. The amount of slag is discharged into the slag bag through the furnace mouth. When the iron slag in the furnace is discharged, the blowing process enters the second cycle. Finally, the operator judges the blowing by observing the amount of flue gas in the furnace, the temperature of the melt, and the reaction state of the melt. After the end point, the melt in the furnace is poured into the copper ladle, and the whole blowing process is completed. [0003] D...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for judging the end time of converter copper smelting, to solve the problem in the above background technology that due to the inability to accurately predict the reaction state in the furnace, when the slagging time and the end time arrive, it is completely through the operator's experience to judge, and repeatedly shake the furnace to take samples and other problems that waste precious smelting time

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