Stirring device for Kambara reactor (KR) molten iron desulfurization

A technology of molten iron desulfurization and stirring devices, which is applied in the field of desulfurization devices in the metallurgical casting industry, and can solve the problems of many negative effects of the axial stirring force of the stirring head.

Inactive Publication Date: 2012-06-27
营口东邦环保科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Stirring device for Kambara reactor (KR) molten iron desulfurization
  • Stirring device for Kambara reactor (KR) molten iron desulfurization

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Embodiment Construction

[0014] As shown in the figure, the agitating device for desulfurization of molten iron by the KR method includes a flange connector 1, an agitating shaft 2 fixedly connected to the flange connector 1, and an agitating blade 4 fixedly connected to the lower part of the agitating shaft 2; The iron facing surface 401 of the stirring blade 4 is a convex arc surface; the back iron surface 402 of the stirring blade 4 is a convex arc surface. A skeleton 3 is provided in the outer refractory protective layer of the stirring shaft 2 and in the refractory protective layer of the stirring blade 4 .

[0015] In order to improve the stress distribution in the molten iron stirring area, the width a of the blade bottom 403 of the stirring blade 4 in the present invention is smaller than the width b of the blade top 404 .

[0016] In order to strengthen the vortex effect in the stirring area, the angle 405 between the blade bottom 403 and the back iron surface 402 of the stirring blade ...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C1/02C21C7/064
Inventor 于林辉陈学新项瑞清陈树村
Owner 营口东邦环保科技股份有限公司
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