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A method for continuous casting ladle to keep molten steel clean

A technology for continuous casting of steel and molten steel, applied in foundry equipment, mechanical cleaning, manufacturing tools, etc., can solve problems such as huge economic losses, and achieve the effects of reducing economic losses, stabilizing variety and quality, and stabilizing steel quality.

Active Publication Date: 2018-08-31
鞍山市华兴冶金炉料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This greatly reduces inclusions, but the economic loss is still huge

Method used

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  • A method for continuous casting ladle to keep molten steel clean
  • A method for continuous casting ladle to keep molten steel clean
  • A method for continuous casting ladle to keep molten steel clean

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Embodiment Construction

[0036] The present invention will be described in detail below in conjunction with the accompanying drawings, but it should be pointed out that the implementation of the present invention is not limited to the following embodiments.

[0037] See Figure 1-Figure 5 , the device for keeping the molten steel 9 clean when the continuous casting ladle 1 is opened, comprising a sliding nozzle 2 arranged at the bottom of the ladle 1, a shroud 3 fixed at the bottom of the ladle 1 and connected with the ladle 1, the upper part of the shroud 3 is connected to the sliding The nozzle 2 is sealed and connected, and also includes a recovery device 4 and a slag separator 6. The recovery device 4 is set under the shroud 3 and does not touch the bottom of the long nozzle 3, leaving a gap in the middle; the slag separator 6 is set on the recovery device 4 Below, the recoverer 4 is composed of a flow steel pipe, an opening cap 5, and an annular groove. The flow steel pipe is fixed in the middle ...

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Abstract

The invention relates to a method and a device for keeping molten steel clean in casting of a continuous casting ladle. When the ladle is cast, a slide water port is opened; a drainage agent flows out from the slide water port, flows onto a casting cap by a long water port of a middle ladle, and flows into a recoverer for recovery along the upper surface of the casting cap; after the drainage agent flows, the molten steel flows down; one part of the molten steel mixed with the drainage agent flows into the drainage agent recoverer along the upper surface of the casting cap; then, the casting cap is corroded by the molten steel for leaking, and the molten steel flows down; after one pot of steel is cast, the long water port is pulled out from the molten steel to deviate from the surface of middle ladle slag; a slag separator is pressed into the molten steel of the middle ladle through middle ladle slag; the side wall of the slag separator is pressed into the molten steel to stop the middle ladle slag from entering the slag separator; and the recoverer is replaced for casting a next ladle. The method and the device have the following advantages: the whole structure is simple; the operation is convenient; the drainage agent and the middle ladle slag can be effectively prevented from mixing into the molten steel of the middle ladle in casting of the ladle; the inclusion in steel is reduced; the steel quality is stable; and the variety quality is stable.

Description

technical field [0001] The invention relates to a method for keeping molten steel clean by starting pouring of a continuous casting ladle. Background technique [0002] At present, metallurgical enterprises, especially iron and steel enterprises, use continuous casting technology to cast molten steel into billets. The molten steel in the ladle flows out through the sliding nozzle at the bottom of the ladle, and flows into the tundish through the long nozzle of the tundish connected under the sliding nozzle. [0003] In the process of continuous casting and continuous pouring, the molten steel in a ladle is drained and the ladle is removed. The next ladle is put on the top of the tundish, and the shroud is raised, the lower end of the shroud leaves the liquid steel surface, and the upper end of the shroud is connected with the sliding nozzle. Operate the sliding nozzle, and the molten steel flows out. Lower the ladle so that the lower end of the shroud is buried under the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D43/00B22D11/08
CPCB22D11/08B22D43/004
Inventor 刘德全王显领田星宇
Owner 鞍山市华兴冶金炉料有限公司
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