Slag scraper for steel ladle opening

Abstract

The invention provides a slag scraper for a steel ladle opening. The slag scraper comprises a plurality of scraping knives. The scraping knives comprise the fixed ladle opening outer wall scraping knives and the ladle opening edge scraping knives. The multiple fixed ladle opening outer wall scraping knives and the multiple ladle opening edge scraping knives are concentrically distributed in a spoke shape in a scattering manner, and the multiple ladle opening outer wall scraping knives are distributed outside a spoke-shaped outer circumference face formed by the multiple ladle opening edge scraping knives. During work, the steel ladle opening is located in a spoke-shaped ring formed by the multiple ladle opening outer wall scraping knives. The inner diameter of the spoke-shaped ring formed by the multiple ladle opening outer wall scraping knives, the outer diameter of the spoke-shaped outer circumference face formed by the multiple ladle opening edge scraping knives and the outer diameter of the steel ladle opening are consistent. The slag scraper for the steel ladle opening is large in single-time slag removal quantity, a steel ladle operates safely, and the slag scraper is not prone to being damaged; and the slag scraper carries out slag removal treatment on the edge and the outer wall of the steel ladle opening with severe slag accumulation at the same time, the slag removal speed is high, and the efficiency is high.

Description

technical field [0001] The invention relates to a device for removing slag accumulated at ladle mouth, in particular to a slag scraper for ladle mouth. Background technique [0002] During the operation of ladle receiving molten steel, steel slag tends to be enriched at the mouth of the ladle in the later stage of operation, resulting in a reduction of the mouth of the ladle and shortening the service time of the ladle. For the slag removal process at the ladle mouth, the slag cleaners disclosed in Chinese patent application publications CN 203509024 U, CN204545407 U, etc. all use a slag scraper hook. The slag accumulation is removed, but the slag accumulation at the edge of the ladle mouth and the outer wall of the ladle cannot be removed. The scope of slag removal is limited, and the inner wall of the ladle is often poured and poured out of molten steel, driven by the friction of molten steel , the slag accumulation is relatively small, and the slag accumulation on the in...

AI Technical Summary

Problems solved by technology

For the slag removal process at the ladle mouth, the slag cleaners disclosed in Chinese patent application publications CN 203509024 U, CN204545407 U, etc. all use a slag scraper hook. The slag accumulation is removed, but the slag accumulation at the edge of the ladle mouth and the outer wall of the ladle cannot be removed. The scope of slag removal is limited, and the inner wall of the ladle is often poured and poured out of molten steel, driven by the friction of molten steel , the slag accumulation is relatively small, and the slag accumulation on the inner wall of the ladle is not the key object to be removed. In addition, the slag accumulation hook is used to remove the slag accumulation from the ladle. Because the amount of dust accumulation in a single hook is small, multiple hook removal operations are required. The working efficiency is low; the disclosed slag cleaners such as CN 204912750 U, CN 205057040 U, ​​etc. in addition, adopt a slag cleaning head. To remove the slag accumulated on the ladle mouth, this kind of rubbing type slag cleaner, in order to rub off the slag cleaning head on the toe mouth, the force between the ladle and the slag cleaning head generally needs to be relatively large, and the ladle is in the working process The drop range is large, and the force between the suspended and moving ladle and the slag cleaning head is uncertain and difficult to control. In this way, it is easy to cause the slag cleaning head to be damaged due to excessive force, and it is often used to clean the edge of the ladle. It is difficult to remove the slag accumulation on the outer wall of the slag, and the slag removal work on the rim edge and the slag removal work on the outer wall of the slag need to be carried out step by step, and the slag removal work is cumbersome

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