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Continuous-casting two-cooling-chamber casting blank gas cooling method and apparatus thereof

A gas cooling and gas technology, which is applied in the field of gas cooling method and device of continuous casting second cooling chamber casting billet, can solve the problems of high operating cost and high nozzle quality requirements, so as to improve production safety factor, improve visibility and reduce cooling The effect of stress concentration

Inactive Publication Date: 2005-07-20
朱萃汉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The cooling effect of this technology is better than that of water cooling technology, but it has higher operating costs and higher requirements on the quality of nozzles, and still has the same defects as water cooling technology.

Method used

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  • Continuous-casting two-cooling-chamber casting blank gas cooling method and apparatus thereof
  • Continuous-casting two-cooling-chamber casting blank gas cooling method and apparatus thereof

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specific Embodiment 1

[0022] In the specific embodiment 1, the cooling medium adopts low-pressure gas, which can be air or inert gas. In the present invention, the method for cooling the slab gas in the second cold chamber of continuous casting comprises the following steps: first, the gas is passed through a controller 2 through a pipeline 1, and the flow and pressure of the gas are regulated here; then the gas is passed through a refrigerator 3 to reduce the The temperature of the gas; finally the gas is passed through the nozzle 6. After the molten steel is cooled by the crystallizer 7, it enters the secondary cold room. The cooling gas is sprayed on the surface of the cast slab 8 through the nozzle 6 to cool the cast slab product 9 .

[0023] In this gas cooling method, the step of passing the gas through the refrigerator 3 may be performed before the gas passes through the controller 2 .

[0024] The structure of the gas cooling device in the specific embodiment 1 of the present invention is...

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Abstract

The present invention discloses a casting cooling process and its equipment, and is aimed at providing a gas cooling method for cooling casting blank obtained by continuous casting process by means of two cooling chambers. Said method includes the following steps: making gas be passed through a controller and a refrigerator, then utilizing nozzle to spray said gas on the surface of casting blank to cool said casting blank. Said invented equipment includes pipeline for gas flow, nozzle, a controller and a refrigerator.

Description

technical field [0001] The invention relates to a casting cooling process and its device. More specifically, the present invention relates to a method and device for cooling slab gas in the secondary cold chamber of continuous casting. Background technique [0002] In the continuous casting production process of iron and steel casting, after the molten steel is cooled by the crystallizer, it still needs to continue to cool. This part of the cooling space is usually called the secondary cooling room. The cooling effect of the slab in the secondary cooling chamber is very important to the quality of the slab. There are two main types of cooling technologies currently in use: [0003] The first is water cooling technology, which is the most common cooling solution, and its usage rate is over 90% in the current secondary cold room cooling method. The water cooling technology is to use water as the coolant, and the water is directly sprayed on the slab through the nozzle. Thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/124
Inventor 朱萃汉
Owner 朱萃汉