Vacuum refining system and method for molten steel

A technology of vacuum refining and vacuum pumping system, which is applied in the field of molten steel vacuum refining system in the metallurgical field, can solve the problems of high energy consumption, environmental pollution, poor impurity removal effect, etc., and achieves low energy consumption, simple equipment and small occupied space. Effect

Active Publication Date: 2008-08-20
西安迈特瑞冶金设备技术有限公司
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Problems solved by technology

[0012] The object of the present invention is to provide a molten steel refining system and method, which solves the technic

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  • Vacuum refining system and method for molten steel

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Embodiment Construction

[0049]Referring to accompanying drawing 1, a kind of molten steel vacuum refining system comprises a vacuum tank, a vacuum system and an outlet pipeline 7 arranged between the vacuum tank and the vacuum system, the vacuum tank includes a vacuum tank body 1, a vacuum tank body 1 The vacuum tank cover 2 on the top, the ladle 6 arranged in the vacuum tank body 1, the oxygen system 3 arranged on the top of the vacuum tank and the argon system 4 at the bottom of the vacuum tank, the vacuum pumping system includes at least one vacuum mechanical pump group 8; The liquid vacuum refining system also includes an impurity removal and treatment system 9 arranged on the gas outlet pipeline 7; the impurity removal and treatment system 9 includes an annular cavity 12 and a filter cloth 13 arranged at the gas outlet of the annular cavity, and the annular cavity The bottom of 12 is also provided with an impurity collection channel 14; the molten steel vacuum refining system also includes a comp...

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Abstract

The invention relates to a molten steel vacuum extraction system and a method thereof. The vacuum extraction system comprises a vacuum tank, a vacuum-pumping system and an exhaust pipeline arranged between the vacuum tank and the vacuum-pumping system, wherein, the vacuum tank comprises a vacuum tank body, a vacuum tank cover arranged at the top of the vacuum tank body, a ladle arranged inside the vacuum tank body, an oxygen system positioned at the top of the vacuum tank and an argon system arranged at the bottom of the vacuum tank body, and also comprises at least a vacuum mechanical pumps group and a impurity removal and treatment system arranged on the exhaust pipeline. The invention solves the technical problems of high energy consumption, poor impurity removal effect and environmental pollution in the background technology and adopts the vacuum mechanical pump group with good control of degree of vacuum and sound molten steel refining and substantial cost reduction.

Description

technical field [0001] The invention relates to a molten steel vacuum refining system and method, in particular to a molten steel vacuum refining system and method in the field of metallurgy. Background technique [0002] In the field of metallurgical steelmaking, vacuuming is required for vacuum refining of molten steel. At present, the vacuuming system of steam flow vacuum pump is used for vacuuming. It is produced by the combustion of the boiler, and the water vapor is sprayed in the pipeline to form a jet gas. The jet gas passes through the upper mouth of the vacuum tank to take out the gas to complete the vacuum. [0003] The vacuum system of the vapor flow vacuum pump generally consists of a vacuum tank, a ladle, a vacuum tank cover, an oxygen blowing system, a boiler, a jet pump unit, an argon blowing system and a multi-stage pool. The gas after the system passes through the gas outlet is a mixed gas, which includes water vapor, carbon monoxide, carbon dioxide, and w...

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Application Information

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IPC IPC(8): C21C7/10
Inventor 张作俭
Owner 西安迈特瑞冶金设备技术有限公司
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