Method for preventing punchthrough of slag ladles during containing washing slag of converter

A technology for converters and slag pots, which is applied in the manufacture of converters, etc., and can solve problems such as undiscovered effective processes, slag through pots during washing, etc.

Inactive Publication Date: 2015-04-29
XINJIANG BAYI IRON & STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the expressions in the above literature, it can be known that no effective process has been found to solve the problem of the slag tank containing the washing slag piercing the tank

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Take the 11m3 slag pot used in a 120-ton converter as an example;

[0017] When the 120-ton converter is ready for the normal smelting of 6 heats of steel before the furnace cleaning, the converter uses the slag tank of the steel casting to contain the liquid slag of the converter according to the normal process, and pours out the liquid steel slag in the slag tank, leaving There are 6 empty slag tanks with slag film. When the converter pours out the washing slag, these slag tanks with converter steel slag film can be used to hold the converter liquid steel slag.

[0018] After filling the converter liquid steel slag, the converter washing slag can be treated according to the normal slag treatment process.

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Abstract

The invention discloses a method for preventing punchthrough of slag ladles during containing washing slag of a converter. The method comprises the following steps: during normal smelting of 3-6 furnace steel before the converter prepares to wash out, containing liquid slag of the converter by the converter by virtue of slag ladles of a steel casting according to a normal process; pouring out the liquid slag in the slag ladles, and leaving 3-6 empty slag ladles with slag films; when the washing slag is poured out by the converter, containing the liquid slag of the converter by virtue of the slag ladles with converter slag films; and after containing the liquid slag of the converter, processing the washing slag of the converter according to a normal slag treatment process.

Description

technical field [0001] The invention relates to a method for preventing a slag pot from being pierced when the slag pot is filled with converter slag for washing. Background technique [0002] In the normal smelting process of the converter, the temperature of the liquid steel slag formed by the converter steelmaking is higher than the temperature of the molten steel. [0003] The slag tank used to hold the converter liquid steel slag pair is generally cast with 16Mn or ZG20, Q235A and other steel types. The tank wall of the slag tank is generally 80mm to 120mm, and the weight of the casting body of the slag tank is the amount of slag from a furnace (or electric furnace) After the high-temperature liquid steel slag enters the slag tank, the cast steel material of the slag tank body shows the advantages of rapid heat absorption and fast conduction. First, the liquid steel slag that contacts the cast steel material of the slag tank wall solidifies into a layer ~10cm slag film...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/28
Inventor 俞海明王洪林段建勇王瑞利戴达奎姜新平王健李明星王伟马辉朱青松
Owner XINJIANG BAYI IRON & STEEL
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