Steel ladle structure and manufacturing method thereof

Abstract

The invention discloses a steel ladle structure and a manufacturing method thereof. A protective layer is arranged between a ladle body permanent layer and a working layer. The manufacturing method comprises the building steps of (1) building a ladle bottom, specifically, firstly, bottoming in a steel ladle shell by using a semi-light refractory castable, building refractory bricks on the semi-light refractory castable, and building a ladle bottom platform; (2) attaching a heat preservation layer, specifically, tightly attaching two layers of nanometer heat insulation plates to the inner wallof the steel ladle shell; (3) building a protective layer and a working layer, specifically, building protective layer refractory bricks on the ladle bottom platform, then building working layer refractory bricks, and forming a double-ring brick structure; (4) pouring a ladle body permanent layer, specifically, injecting a semi-light castable between the nanometer heat insulation plate and the protective layer bricks every 2-3 layers of double-ring bricks are built, constructing the ladle body permanent layer, and repeating the step until the edge of a steel ladle opening is reached; and (5) punching a hole in the peripheral steel ladle shell of the steel ladle slag line area to install a thermocouple, and connecting a temperature display. According to the invention, the safety of the steel ladle is effectively improved, the heat loss of molten steel is reduced, and the maintenance workload and material consumption of the steel ladle are greatly reduced.

Description

technical field [0001] The invention relates to the technical field of metallurgical equipment manufacturing, in particular to a ladle manufacturing technology, specifically a ladle structure and a manufacturing method thereof. Background technique [0002] As an important container in the steelmaking process of the converter and electric furnace in the metallurgical industry, the ladle is an indispensable tool for carrying molten steel in the middle of smelting, refining outside the furnace and continuous casting in the steelmaking process, and is the fundamental guarantee for the stable and orderly progress of the steelmaking process. Therefore, the performance of the ladle plays a vital role in the smooth progress of the entire steelmaking production process. [0003] The existing ladle lining comprises a ladle bottom and a ladle body, and the ladle body is successively composed of a working layer, a permanent layer and an insulating layer from the inside to the outside. ...

AI Technical Summary

Problems solved by technology

Since the ladle is in a high-temperature environment during use, the working condition is bad, and there is slagging on the surface of the working layer, it is difficult to accurately judge the erosion of the working layer

When the residual thickness of the refractory material in the working layer is lower than the set safety thickness and is not discovered in time, there will be safety hazards, which will easily lead to accidents of molten steel passing through the ladle and cause major economic losses

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