Method for judging end point time of copper smelting of converter

A technology of terminal time and converter, which is applied in the field of judging the terminal time of converter copper smelting, and can solve problems such as waste of smelting time

Inactive Publication Date: 2020-10-23
李大为
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  • Abstract
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  • Claims
  • Application Information

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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 reacti

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  • Method for judging end point time of copper smelting of converter

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Embodiment

[0065] After the matte is discharged from the previous process, it is put into the matte bag, and samples are taken and sent to the laboratory to analyze the copper content, iron content, and sulfur content, and the mass of the matte in the bag is obtained through the crane weighing system. After obtaining the above Mathematical modeling is carried out by the following formula after each data

[0066] Take a set of conventional data here for calculation demonstration

[0067] Matte weight 20t, copper content 49.12%, iron content 20.84% ​​sulfur content 24.06%, iron-silicon ratio 1.4, calculated by formula:

[0068] Matte iron content in this group Kg=matte weight 20t*1000*iron content 20.84% / 100=4168Kg;

[0069] The molar amount of oxygen required for this group of matte Kmol = iron content 4168Kg / 55.85*1.5 = 112Kmol;

[0070] Oxygen required for this group of matte Nm 3 =Oxygen molar mass 112Kmol*22.4=2508Nm 3 ;

[0071] The amount of air required for this group of matte...

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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...

Claims

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Application Information

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IPC IPC(8): C22B15/06
CPCC22B15/0041
Inventor 李大为王鹏佟亮
Owner 李大为
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