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Automatic tapping method based on synergic movement of converter and buggy ladle

A technology of coordinated movement and ladle car, which is applied in the direction of manufacturing converters, casting molten material containers, manufacturing tools, etc., can solve the problems that the coordinated movement of ladle cars has not been mentioned, and the influence of steel tapping cannot be solved, so as to prevent steel overflow Possibility, the effect of avoiding excessive slag discharge and avoiding potential safety hazards

Inactive Publication Date: 2021-03-26
南京宝希智能技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Although the above scheme mentions the regulation and control of the tapping process in combination with the weight of the molten steel in the converter, it still cannot solve the impact of the steel slag on tapping at the beginning or end of tapping and the middle process; and

Method used

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  • Automatic tapping method based on synergic movement of converter and buggy ladle
  • Automatic tapping method based on synergic movement of converter and buggy ladle
  • Automatic tapping method based on synergic movement of converter and buggy ladle

Examples

Experimental program
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Effect test

Embodiment 1

[0091] An automatic tapping method based on the coordinated movement of the converter and the ladle car in this embodiment, when the converter needs to be tapped, the converter is rotated and dumped, when the liquid steel level overflows the tapping hole and reaches the top of the tapping hole When the furnace cap is used, according to the vertical distance L from the molten steel level to the tapping hole, when L reaches 0.10m to 0.30m, the tapping hole is opened for tapping; and the value of L is kept during the tapping process, and its The lower limit of fluctuation is 0.02m, and the upper limit of fluctuation is 0.10m until the end of molten steel dumping. The above molten steel pouring method can ensure that during the tapping process, the steel slag on the surface of the molten steel can be kept away from the tapping port to avoid excessive slag discharge; at the same time, it can ensure that the molten steel is kept away from the furnace mouth of the converter, and to a ...

Embodiment 2

[0152] In this embodiment, taking a 200-ton converter in a factory as an example, when L is 0.28m, the tapping port is opened for tapping; the converter is tapped according to the above method.

[0153] Embodiments 1 and 2 provide a shaking furnace method for tapping steel from a converter. The converter first dumps and taps the steel, and then the converter returns to normal. The method of dumping and tapping the converter is the molten steel dumping method described in the previous embodiments 1 and 2. The specific process is as image 3 shown.

[0154] According to the statistics of the application effects of Embodiment 1 and Embodiment 2, the yield of iron and steel materials has been increased by 0.17% and 0.18% respectively, and the loss of iron element has been reduced. The following table is the implementation process statistics.

[0155] Implementation of the use effect statistics table (main raw material molten steel yield)

[0156]

[0157]

[0158] Embodim...

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Abstract

The invention discloses an automatic tapping method based on cooperative movement of a converter and a buggy ladle, and belongs to the technical field of metallurgical automation control. During tapping, the converter rotates and gets ready to pour molten steel, and when the liquid level of the molten steel is higher than a tap hole and reaches a furnace cap above the tap hole and the distance L from the liquid level of the molten steel to the tap hole in the vertical direction reaches 0.10 meter to 0.30 meter, the the tap hole is automatically opened for automatic tapping; after tapping is finished, the converter returns to the original position; and in the tapping process, the buggy ladle below the converter moves according to the change of the position of the tap hole to receive moltensteel flowing out of the tap hole. According to the automatic tapping method based on synergic movement of the converter and the buggy ladle, it can be guaranteed that steel slag on the surface of molten steel can be far away from the tap hole in the tapping process, it is avoided that the too much slag is discharged, and it is guaranteed that the automatic tapping process of a ladle and the steelreceiving process are stable.

Description

technical field [0001] The invention relates to the technical field of metallurgical automation control, and more specifically relates to an automatic tapping method based on the coordinated movement of a converter and a ladle car. Background technique [0002] With the development of related software and hardware technologies, the production process of iron and steel plants has gradually realized automation, and the automatic production of converters is an important part of automatic production of steelmaking; in the process of automatic production of converters, there are many devices that need to realize automatic control. Converter, oxygen lance, ladle car working with converter and other supporting devices for converter. [0003] In the process of realizing the automatic production of the converter, automatic tapping is an important part of it. The tapping process of the converter needs to realize the tilting of the converter through the shaking furnace to achieve the p...

Claims

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Application Information

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IPC IPC(8): C21C5/50B22D41/12
CPCC21C5/50B22D41/12
Inventor 占小立
Owner 南京宝希智能技术有限公司
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