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Unkilled steel RH smelting method and temperature compensation method

A temperature compensation and smelting method technology, applied in the field of steelmaking, can solve problems such as pollution, affecting the quality of molten steel, waste of resources and the environment, and achieve the effects of avoiding environmental pollution, improving the purity of molten steel, and reducing the production of cold steel

Active Publication Date: 2016-10-26
SHOUGANG JINGTANG IRON & STEEL CO LTD
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Problems solved by technology

[0005] The invention provides a temperature compensation method for RH smelting based on waste gas combustion, which solves the technical problems of the prior art that the temperature drop in the RH smelting stage leads to the generation of cold steel, which affects the quality of molten steel, and at the same time waste gas is discharged, causing waste of resources and environmental pollution.

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  • Unkilled steel RH smelting method and temperature compensation method
  • Unkilled steel RH smelting method and temperature compensation method
  • Unkilled steel RH smelting method and temperature compensation method

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Embodiment Construction

[0033] The embodiment of the present application provides a temperature compensation method for RH smelting based on exhaust gas combustion, which solves the problem of temperature drop in the RH refining stage in the prior art, which leads to the generation of cold steel and affects the quality of molten steel; at the same time, waste gas is discharged, causing waste of resources and environmental pollution. Technical problems; achieve the technical effect of reducing the temperature drop of molten steel, inhibiting the generation of cold steel, and ensuring the quality of molten steel; at the same time, improving resource utilization and avoiding environmental pollution.

[0034] In order to solve the above technical problems, the general idea of ​​the technical solution provided by the embodiment of the present application is as follows:

[0035] A temperature compensation method for RH smelting based on waste gas combustion; comprising the following steps:

[0036] Execute...

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Abstract

The invention relates to an unkilled steel RH smelting method and a temperature compensation method, belongs to the technical field of steelmaking, and discloses an RH smelting temperature compensation method based on waste gas burning. The temperature compensation method comprises the following steps: performing an RH smelting operation; and introducing oxygen into an RH refining furnace to burn waste gas in the RH refining furnace, wherein molten steel is heated by heat generated during burning of the waste gas in the smelting furnace. The temperature compensation method provide by the invention is clean, is low in cost, reduces the yield of cold steel and guarantees the purity and quality of the molten steel.

Description

technical field [0001] The invention relates to the technical field of steelmaking, in particular to a non-killed steel RH smelting method and a temperature compensation method. Background technique [0002] RH produces low-carbon steel series. The non-killed molten steel treatment mode shows great advantages in cost and treatment process, and the smelting ratio is getting higher and higher. [0003] However, in this process route, a large amount of waste gas generated during the refining RH process, such as a large amount of CO generated during decarbonization, is directly discharged into the atmosphere, causing environmental pollution and waste of resources. [0004] During the vacuum treatment process, the whole treatment process belongs to the heat dissipation stage, and the temperature drop of molten steel is relatively large. During the whole RH treatment period of non-sedated light treatment molten steel, the temperature drop is between 25-30°C. At the same time, bec...

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Application Information

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IPC IPC(8): C21C7/072C21C7/10
CPCC21C7/072C21C7/10
Inventor 黄财德李一丁李勇安超王崇单伟
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD
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