Method and device for measuring and controlling casting powder of continuous caster crystallizer

A technology of mold powder and measurement and control method is applied in the field of continuous casting automation control to achieve the effect of enhancing quality stability and realizing performance tracking.

Active Publication Date: 2013-02-13
湖南镭拓科技有限公司
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Problems solved by technology

[0005] The object of the present invention is to provide a method and device for real-time detection of the slag position, slag thickness and mold slag thickness distribution changes of the continuous casting machine mold slag, so as to solve the problem of real-time measurement and control of the continuous casting machine mold slag, and more Realize the addition of mold powder well

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  • Method and device for measuring and controlling casting powder of continuous caster crystallizer
  • Method and device for measuring and controlling casting powder of continuous caster crystallizer
  • Method and device for measuring and controlling casting powder of continuous caster crystallizer

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Embodiment Construction

[0021] The present invention will be further described below by specific examples.

[0022] figure 1 The flow chart of the method for measuring and controlling mold slag in the mold of a continuous casting machine provided by the embodiment of the present invention, as shown in figure 1 As shown, the system enters the measurement and control process after starting, and runs from step S101 to step S110 in sequence.

[0023] Step S101, triggering a laser light source to emit laser light.

[0024] In step S102, the area array CCD monitors the mold flux surface and the mold side wall in real time, and collects laser projection images.

[0025] Step S103, the processor performs corresponding analysis and processing on the laser projection image, the analysis and processing process is as follows: figure 2 shown.

[0026] Step S104, the processor extracts the mold slag position L slag and changes in the flatness of the mold slag surface.

[0027] Step S105, the liquid level de...

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Abstract

The invention discloses a method and a device for measuring and controlling casting powder of a continuous caster crystallizer. The method comprises the steps as follows: obtaining the position Lslag of casting powder according to the length of a projecting line on one side wall of the crystallizer when laser is projected on the upper surface of casting powder and the side wall of the crystallizer; obtaining the smoothness variation of the surface of casting powder according to the laser projection on the upper surface of casting powder; obtaining the liquid level Lsteel of the crystallizer with a liquid level detection system; obtaining the thickness L of casting powder according to the formula that L equals Lsteel minus Lslag, and the thickness variation of casting powder; and controlling the casting powder feeding operation of casting powder feeding equipment according to the thickness and the thickness variation. The device comprises a crystallizer casting powder position detecting system, the crystallizer liquid level detection system and an automatic casting powder feeding system, wherein the crystallizer casting powder position detecting system comprises a laser source, monitoring equipment, a processor, a main control computer and an on-site display terminal. According to the invention, close-loop control of casting powder can be realized; casting powder feeding quantity can be counted in a real-time manner; and casting powder performance tracking is realized.

Description

technical field [0001] The invention relates to the field of continuous casting automation control, in particular to a method and device for measuring and controlling mold slag of a continuous casting machine mold. Background technique [0002] In continuous casting, the protective pouring from the continuous casting tundish to the crystallizer is used in conjunction with the submerged nozzle and mold slag pouring. The protective pouring is an important guarantee for high-quality continuous casting slabs. Since its development in the 1960s, mold powder has developed into a special continuous casting technology. Heat and absorption of inclusions are not only the guarantee for the continuous casting process to run smoothly, but also the decisive factors for the surface and skin quality of the slab. [0003] In the continuous casting process, mold slag is added to the liquid surface of the mold, and after absorbing the heat provided by the high-temperature molten steel, a thre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/16B22D11/111
Inventor 田陆杨建桃
Owner 湖南镭拓科技有限公司
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