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Steel ladle and construction method thereof

A ladle and masonry technology, which is applied in the direction of casting molten material containers, metal processing equipment, casting equipment, etc., can solve the problems of tight supply of ladles, low use requirements, centralized off-line and other problems, and achieve slow erosion, prolong service time, Improve the effect of package age

Active Publication Date: 2018-06-01
NANJING IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of ladle can only meet the lower requirements for use, and sometimes there will be concentrated off-line during the turnover process, and the supply of steel ladles will suddenly become tense, making production fall into a passive situation

Method used

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  • Steel ladle and construction method thereof
  • Steel ladle and construction method thereof

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing, take masonry 110 ton ladle as example, the realization mode of the present invention is described further.

[0020] Such as figure 1 First paste the insulation layer 2, in the fully dismantled ladle 100, stick the insulation layer 2 close to the inner wall with an adhesive, beat the insulation layer 2 evenly with tools such as a small hammer, so that it is closely combined with the inner wall. Compared with silicate heat insulation boards, ceramic heat insulation boards for insulation layer 2 have a better insulation effect, and the thickness of insulation layer 2 is controlled at 10mm, that is, the thickness of ceramic heat insulation boards is 10mm.

[0021] Then pour the bottom permanent layer 1 at the bottom of the ladle. Because the corundum castable has high temperature resistance strength after solidification, it can significantly improve the safety of the bottom of the ladle. Therefore, the permanent layer 1 of the...

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Abstract

The invention discloses a steel ladle. According to different erosion mechanisms and different erosion speeds of all zones inside the steel ladle, a ladle bottom working layer is arranged to be an impacting zone and a non-impacting zone, a ladle wall working layer is arranged to be a bath zone, a bath transition zone and a slag line zone, refractory material specifications of the ladle bottom working layer and the ladle wall working layer are adjusted accordingly, the thickness and height of a refractory material are increased in a zone with the higher erosion speed, an erosion transition beltis formed, the erosion speed of a serious erosion zone is decreased, meanwhile, a slow erosion zone can be indirectly protected, the overall service life of the steel ladle refractory material is prolonged, and the ladle life of the steel ladle is further prolonged effectively. The invention further discloses a construction method of the steel ladle. The using ladle life of the steel ladle constructed by the method can reach 48-55 furnace times, the turnover period of the steel ladle is increased while the ladle life of the steel ladle is prolonged, and the construction cost is reduced.

Description

technical field [0001] The invention relates to metallurgical equipment, in particular to a steel ladle and a masonry method thereof. Background technique [0002] With the continuous development of the refining technology outside the furnace in the metallurgical industry, the workload borne by the ladle is getting heavier and heavier. Almost all refining processes of molten steel outside the furnace must be completed in the ladle. Under the fast-paced smelting conditions, the working condition of the ladle has a decisive impact on the entire steelmaking production line. [0003] The average service life of ladles built by existing masonry methods is only 42 to 44 furnaces, the average use of primary slag lines is about 24 furnaces, the average residual thickness of slag lines is only 66.15mm, the average use of secondary slag lines is 20.5 furnaces, and the average The residual thickness is only 55.7mm, far below the required line. This kind of steel ladle can only meet ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D41/02
Inventor 李权辉周剑李林于绍飙
Owner NANJING IRON & STEEL CO LTD
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