Novel desulfuration slag rake

Abstract

The invention provides an integrated desulfuration slag rake, wherein manufacturing of an original slag rake is simplified, and the novel desulfuration slag rake does not have a welding portion. Strength of the novel desulfuration slag rake is enhanced, service life of the novel desulfuration slag rake is prolonged, and the novel desulfuration slag rake is flexible and convenient to use. Original wedge pin connection is changed into the connection method of surface-to-surface contact, a protruded rectangular body which can be used for hanging of the slag rake is omitted, a connection trapezoid hole is welded on a connection portion, the slag rake can be placed into the connection trapezoid hole, and the width of the connection trapezoid hole is consistent with the thickness of the slag rake. During installation, a connection port of the slag rake is directly and wholly inserted into the trapezoid hole to form the surface-to-surface contact, and an inserting bolt is placed on the trapezoid hole to prevent falling-off. No stress exists, so that no deformation occurs. Replacement is convenient and rapid, manufacturing cost is lowered, and drossing efficiency is improved.

Description

Technical field: [0001] A new type of slag rake for desulfurization. The slag rake is the main tool for slag removal in the pretreatment of molten iron. It is connected with the slag removal arm of the slag removal machine with iron pins. The action depends on the movement of the slag rake on the surface of the molten iron to remove the desulfurization slag to achieve the purpose of desulfurization. The slag must be removed, otherwise it will cause back sulfur and affect the desulfurization effect. Background technique: [0002] At present, the manufacture of the slag rake is complicated. There are 6 parts welded together, and there are 12 weld seams. Due to the large number of weld seams, due to the influence of molten iron and production rhythm during the slag removal process, it is affected by extreme cold and extreme heat. It is easy to crack or corrode from the welding seam first, resulting in a low service life. In addition, due to the large number of welding seams, it...

AI Technical Summary

Problems solved by technology

[0003] The connection between the slag rake and the slag scraper is connected by wedge pins. The connection area with the slag scraper is small, and it is easy to deform and scrap the slag scraper. When the deformed slag scraper is difficult to disassemble, the wedge pin is sometimes difficult to pull out. It takes a long time to replace the slag rake

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