Stirring device for Kambara reactor (KR) molten iron desulfurization

Abstract

The invention belongs to the field of desulfurization devices in metallurgy and foundry industry, and in particular relates to a stirring device for Kambara reactor (KR) molten iron desulfurization. The stirring device comprises a flange connecting piece (1), a stirring shaft (2) fixedly connected with the flange connecting piece (1), and a stirring blade (4) fixedly connected with the lower part of the stirring shaft (2), and is characterized in that: an iron facing surface (401) of the stirring blade (4) is a convex arc surface; an iron backing surface (402) of the stirring blade (4) is a convex arc surface; the width a of a blade bottom (403) of the stirring blade (4) is smaller than the width b of a blade top (404) of the stirring blade (4); a convex arc surface is formed at an included angle between the blade bottom (403) of the stirring blade (4) and the iron backing surface (402); the stirring blade (4) has a three-blade structure; and a convex arc surface is formed at a side wall external corner (406) of the stirring blade (4). The stirring device has a simple structure, long working life and an ideal stirring effect and is low in cost.

Description

technical field [0001] The invention belongs to the field of desulfurization devices in the metallurgical casting industry, and in particular relates to a stirring device for desulfurization of molten iron by the KR method. Background technique [0002] (Kambara Reactor) desulfurization method is a method of desulfurization of molten iron using mechanical stirring. When the iron (steel) water is desulfurized in the ladle, a certain amount of desulfurizer is added, and it is required to fully mix and react with the iron (steel) water. This requires mechanical stirring of the iron (steel) water. Due to the excellent desulfurization kinetic characteristics of KR (Kambara Reactor) stirring desulfurization, it has attracted extensive attention from domestic and foreign iron and steel enterprises. [0003] At present, there is a mechanical stirring device, the stirring head is made of refractory material, and the shape is cross-shaped, that is, four stirring blades are arranged ...

AI Technical Summary

Problems solved by technology

[0003] At present, there is a mechanical stirring device, the stirring head is made of refractory material, and the shape is cross-shaped, that is, four stirring blades are arranged around the stirring head, and the Agitation of iron (steel) water is realized, but most of the stirring blades of the above-mentioned stirring heads adopt a vertical surface structure, and the above-mentioned structural design has a lot of negative effects on the axial stirring force of the stirring head

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