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Method for prolonging service life of steel ladle slag line bricks

A technology of ladle slag line and slag line, which is applied in the direction of casting molten material container, metal processing equipment, casting equipment, etc., can solve the problems that restrict the service life of the ladle, and achieve the goal of increasing the service life, increasing the number of times of use, and increasing the age of the ladle Effect

Inactive Publication Date: 2019-06-11
SD STEEL RIZHAO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Frequent contact with steel slag, the erosion rate is faster, while the erosion rate of other positions is relatively light, and the faster erosion position has become a factor that significantly restricts the service life of the ladle

Method used

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  • Method for prolonging service life of steel ladle slag line bricks

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Embodiment Construction

[0013] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described below in conjunction with the examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0014] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways than described here. Therefore, the present invention is not limited to the specific embodiments disclosed below. limit.

[0015] A method for improving the service life of ladle slag line bricks, the control method adopted is:

[0016] (1) The thickness of the slag line bricks on the 1st-6th layer is changed to 210mm;

[0017] (2) The thickness of the slag line brick on the seventh layer is maintained at the origi...

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Abstract

The invention discloses a method for prolonging the service life of steel ladle slag line bricks. The adopted control method comprises the steps that the thickness of the slag line bricks on the firstlayer to the sixth layer is changed and designed into 210 mm; the thickness of the slag line bricks on the seventh layer is maintained as originally designed 230 mm; the thickness of the slag line bricks on the eighth layer to the twelfth layer is changed and designed into 250 mm; the thickness of the slag line bricks on the seventh layer is maintained as originally designed 230 mm; and the thickness of the slag line bricks on the fourteenth layer is maintained as originally designed 210 mm. By means of the method, on the premise of guaranteeing that the volume of a steel ladle is not changed, that is, the tapping amount of a converter is not changed, the corrosion speed of the slag line bricks is reduced, the use number of the slag line bricks is effectively improved, and the ladle age is increased.

Description

technical field [0001] The invention belongs to the field of steelmaking, and in particular relates to a method for increasing the service life of ladle slag line bricks. Background technique [0002] At this stage, the 210-ton ladle is designed with 14 layers of slag line bricks, and the thickness of the slag line bricks is 230mm. In the actual production and operation process, the residual thickness of the slag line bricks is generally controlled at about 80mm, and the number of use of the slag line bricks is 32 times. about. The steel output is stable, and the clearance of the ladle is basically controlled between 500-800mm. Therefore, the most serious erosion of slag line bricks is between the 8th and 12th layer of slag line bricks. Since the thickness of the slag-line bricks is the same, although they are both slag-line bricks, there are obvious differences in erosion speed due to the different degrees of contact with steel slag. Frequent contact with steel slag, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D41/02
Inventor 温福新毕永杰王学新胡勤东曹先锋温维新陈常义高龙永王兴李国柱
Owner SD STEEL RIZHAO CO LTD
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