Method and device for submersed nozzle slag line of automatic adjusting slab caster

A slab continuous casting machine and automatic adjustment technology, applied in the field of slab continuous casting, can solve the problems of excessive erosion of submerged nozzles, affecting the service life of submerged nozzles, etc.

Active Publication Date: 2015-07-08
SHANDONG IRON & STEEL CO LTD
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Problems solved by technology

[0006] The embodiment of the present disclosure provides a method and device for automatically adjusting the slag line of the submerged nozzle of the slab continuous casting machine to solve the problem of manually chan

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  • Method and device for submersed nozzle slag line of automatic adjusting slab caster
  • Method and device for submersed nozzle slag line of automatic adjusting slab caster
  • Method and device for submersed nozzle slag line of automatic adjusting slab caster

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[0043] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0044] The operation of the slag changing line is mainly to change the immersion depth of the submerged nozzle in the molten steel, so as to avoid local over-erosion of the submerged nozzle in the molten steel surface and prolong the service life of the submerged nozzle. Table 1 provides a comparison of the advantages and disadvantages of the manual slag changing line and the automatic slag changing line provided by the present disc...

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Abstract

The invention provides a method and a device for a submersed nozzle slag line of an automatic adjusting slab caster, relates to the technical field of slab casting, and solves the problems that the slag line changing operation carried out by a manual way, a submersed nozzle cannot be accurately controlled, and the service life of the submersed nozzle can be severely affected by the partially excessive corrosion of the submersed nozzle in a crystallizer. The method comprises the following steps: detecting and acquiring measurement parameter information in the slab caster in real time, wherein the measurement parameter information comprises a distance value between the molten liquid surface of the crystallizer and the top part of the crystallizer; determining an immersion depth value of the existing submersed nozzle in the molten liquid in the crystallizer; determining the position of an existing slag line in the submersed nozzle according to the immersion depth value; carrying out slag line changing operation to the submersed nozzle according to a set way when the slag line is located on a slag line part above the submersed nozzle. The method for the submersed nozzle slag line of the automatic adjusting slag caster is mainly applied to a production process of steelmaking.

Description

technical field [0001] The present disclosure relates to the technical field of slab continuous casting, in particular to a method and device for automatically adjusting the slag line of a submerged nozzle of a slab continuous casting machine. Background technique [0002] With the continuous development of industrial technology and the continuous acceleration of the pace of steelmaking production, people have higher and higher requirements for the quality of cast slabs. Steel billets are generally produced by billet continuous casting machines, such as figure 1 As shown, the slab continuous casting machine includes: a tundish 100 , a submerged nozzle 120 and a crystallizer 140 . Among them, the submerged nozzle is an important functional refractory material in the continuous casting process. It undertakes the molten steel from the tundish to the crystallizer, and is an important guarantee for the realization of continuous casting without oxidation. Continuous casting requ...

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Application Information

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IPC IPC(8): B22D11/18
Inventor 郭维河蔡森颜炳正秦昌国李玉平边芳蔡悝陈永生李凤巧鲍红宾董跃华孟祥彬李克刘海琨张晓峰
Owner SHANDONG IRON & STEEL CO LTD
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